Lower Respiratory Tract IllnessPhase 3RENOIRNCT05035212
Study to Evaluate the Efficacy, Immunogenicity, and Safety of RSVpreF in Adults.
A Phase 3 study testing RSVpreF in people with Lower Respiratory Tract Illness, run by Pfizer at 263 sites in 7 countries.
Trial summary
Efficacy Study: This randomized, double-blinded, placebo-controlled Phase 3 study is designed to assess the safety, immunogenicity, and efficacy of a single dose of RSVpreF in the prevention of LRTI-RSV in adults: At a dose of 120µg. In adults 60 years of age and older. Read more about this study
- Who is it for?
- Ages 60 years and olderHealthy volunteers can take part
- Conditions the study is for
- Lower Respiratory Tract Illness
- What is being tested?
- RSVpreF
- Type of treatment
- Vaccines
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 38,861 participants
- Where
- 263 sitesin 7 countries
- Study dates
- 31 Aug 2021to 18 Jan 2027
- Phase
- Phase 3
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 60 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Participants who are willing and able to comply with all scheduled visits, vaccination plan, laboratory tests, lifestyle considerations, frequent symptom assessment by mobile device application, and other study procedures, including collection of nasal swabs by themselves and by study staff when indicated.
- Healthy participants who are determined by medical history, physical examination (if required), and clinical judgment of the investigator to be eligible for inclusion in the study.
- Note: Healthy participants with preexisting stable disease, defined as disease not requiring significant change in therapy or hospitalization for worsening disease during the 6 weeks before enrollment, can be included. Specific criteria for participants with known stable infection with HIV, HCV, or HBV can be found in the protocol.
- Adults who are ambulatory and live in the community, or in assisted living or long-term care residential facilities that provide minimal assistance, such that the participant is primarily responsible for self-care and activities of daily living.
- Capable of giving signed informed consent as described in the protocol, which includes compliance with the requirements and restrictions listed in the ICD and in this protocol.
- Male or female participants ≥60 years of age.
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- Male participants able to father children must agree to use a highly effective method of contraception from the time of informed consent through at least 28 days after study intervention administration.
- Female participants must not be of childbearing potential.
- Participants who are willing and able to comply with all scheduled visits, vaccination plan, laboratory tests, lifestyle considerations, frequent symptom assessment by mobile device application, and other study procedures, including collection of nasal swabs by themselves and by study staff when indicated.
- Healthy participants who are determined by medical history, physical examination (if required), and clinical judgment of the investigator to be eligible for inclusion in the study.
- Note: Healthy participants with preexisting stable disease, defined as disease not requiring significant change in therapy or hospitalization for worsening disease during the 6 weeks before enrollment, can be included. Specific criteria for participants with known stable infection with HIV, HCV, or HBV can be found in the protocol.
- Adults who are ambulatory and live in the community, or in assisted living or long-term care residential facilities that provide minimal assistance, such that the participant is primarily responsible for self-care and activities of daily living.
- Capable of giving signed informed consent as described in the protocol, which includes compliance with the requirements and restrictions listed in the ICD and in this protocol.
- Male or female participants ≥60 years of age.
- Male participants able to father children must agree to use a highly effective method of contraception from the time of informed consent through at least 28 days after study intervention administration.
- Female participants must not be of childbearing potential.
- Participants who received RSVpreF in the efficacy study.
- Participants who have a Visit 2 serology sample available for testing from the efficacy study, completed the end-of-Season 2 visit (Visit 5), and did not meet exclusion criteria throughout the efficacy study duration.
- Participants who are willing and able to comply with all scheduled visits, vaccination plan, laboratory tests, lifestyle considerations, frequent symptom assessment by mobile device application, and other study procedures, including collection of nasal swabs by themselves and by study staff when indicated.
- Healthy participants who are determined by medical history, physical examination (if required), and clinical judgment of the investigator to be eligible for inclusion in the study.
- Note: Healthy participants with preexisting stable disease, defined as disease not requiring significant change in therapy or hospitalization for worsening disease during the 6 weeks before enrollment, can be included. Specific criteria for participants with known stable infection with HIV, HCV, or HBV can be found in the protocol.
- Adults who are ambulatory and live in the community, or in assisted living or long-term care residential facilities that provide minimal assistance, such that the participant is primarily responsible for self-care and activities of daily living.
- Capable of giving signed informed consent as described in the protocol, which includes compliance with the requirements and restrictions listed in the ICD and in this protocol.
- Male or female participants ≥60 years of age.
- Male participants able to father children must agree to use a highly effective method of contraception from the time of informed consent through at least 28 days after study intervention administration.
- Female participants must not be of childbearing potential. 6. Participants who received RSVpreF in the efficacy study.
- Participants who received RSVpreF in the efficacy study.
- Participants who have a Visit 2 serology sample available for testing from the efficacy study and did not meet exclusion criteria through Visit 4 of the efficacy study.
- Participants who are willing and able to comply with all scheduled visits, vaccination plan, laboratory tests, lifestyle considerations, frequent symptom assessment by mobile device application, and other study procedures, when indicated.
- Healthy participants who are determined by medical history, physical examination (if required), and clinical judgment of the investigator to be eligible for inclusion in the study.
- Note: Healthy participants with preexisting stable disease, defined as disease not requiring significant change in therapy or hospitalization for worsening disease during the 6 weeks before enrollment, can be included. Specific criteria for participants with known stable infection with HIV, HCV, or HBV can be found in the protocol.
- Adults who are ambulatory and live in the community, or in assisted living or long-term care residential facilities that provide minimal assistance, such that the participant is primarily responsible for self-care and activities of daily living.
- Capable of giving signed informed consent as described in the protocol, which includes compliance with the requirements and restrictions listed in the ICD and in this protocol.
- Male or female participants ≥60 years of age.
- Participants who received RSVpreF in the efficacy study.
- Participants who have a Visit 2 serology sample available for testing from the efficacy study, completed the end-of-Season 2 visit (Visit 5), and did not meet exclusion criteria throughout the efficacy study duration.
Who cannot join
- Bleeding diathesis or condition associated with prolonged bleeding that would, in the opinion of the investigator, contraindicate intramuscular injection.
- History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the study intervention(s) or any related vaccine.
- Serious chronic disorder including metastatic malignancy, end-stage renal disease with or without dialysis, clinically unstable cardiac disease, or any other disorder that, in the investigator's opinion, excludes the participant from participating in the study.
- Immunocompromised individuals with known or suspected immunodeficiency, as determined by history and/or laboratory/physical examination.
- Other medical or psychiatric condition including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
- Participation in other studies involving an investigational product within 28 days prior to consent and/or through and including the 6-months follow-up visit (Visit 3).
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- Note: This criterion does not apply to participants who are participating in a follow-up period for another study involving a study intervention that is an investigational drug or vaccine, if receipt of the last dose was at least 6 months prior to consenting for this study and there is no further dosing anticipated from the previous study during the participant's participation in this study - Individuals who receive chronic systemic treatment with immunosuppressive therapy, including cytotoxic agents, monoclonal antibodies, systemic corticosteroids, or radiotherapy, eg, for cancer or an autoimmune disease, from 60 days before study intervention administration or planned receipt throughout the study. If systemic corticosteroids have been administered short term (<14 days) for treatment of an acute illness, participants should not be enrolled in the study until corticosteroid therapy has been discontinued for at least 28 days before study intervention administration. Inhaled/nebulized, intra articular, intrabursal, or topical (skin or eyes) corticosteroids are permitted.
- Note: Participants with COPD or asthma can be enrolled if chronic corticosteroids do not exceed a dose equivalent to 10 mg/day of prednisone.
- Receipt of blood/plasma products or immunoglobulin within 60 days before study intervention administration.
- Previous vaccination with any licensed or investigational RSV vaccine or planned receipt during study participation.
- Investigator site staff or Pfizer employees directly involved in the conduct of the study, site staff otherwise supervised by the investigator, and their respective family members.
- Substudy A
- Bleeding diathesis or condition associated with prolonged bleeding that would, in the opinion of the investigator, contraindicate intramuscular injection.
- History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the study intervention(s) or any related vaccine.
- Serious chronic disorder including metastatic malignancy, end-stage renal disease with or without dialysis, clinically unstable cardiac disease, or any other disorder that, in the investigator's opinion, excludes the participant from participating in the study.
- Immunocompromised individuals with known or suspected immunodeficiency, as determined by history and/or laboratory/physical examination.
- Other medical or psychiatric condition including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
- Participation in other studies involving an investigational product within 28 days prior to consent and/or through and including the 6-months follow-up visit (Visit 103).
- Note: This criterion does not apply to participants who are participating in a follow-up period for another study involving a study intervention that is an investigational drug or vaccine, if receipt of the last dose was at least 6 months prior to consenting for this study and there is no further dosing anticipated from the previous study during the participant's participation in this study
- Individuals who receive chronic systemic treatment with immunosuppressive therapy, including cytotoxic agents, monoclonal antibodies, systemic corticosteroids, or radiotherapy, eg, for cancer or an autoimmune disease, from 60 days before study intervention administration or planned receipt throughout the study. If systemic corticosteroids have been administered short term (<14 days) for treatment of an acute illness, participants should not be enrolled in the study until corticosteroid therapy has been discontinued for at least 28 days before study intervention administration. Inhaled/nebulized, intra articular, intrabursal, or topical (skin or eyes) corticosteroids are permitted.
- Note: Participants with COPD or asthma can be enrolled if chronic corticosteroids do not exceed a dose equivalent to 10 mg/day of prednisone.
- Receipt of blood/plasma products or immunoglobulin within 60 days before study intervention administration.
- Previous vaccination with any licensed or investigational RSV vaccine or planned receipt during study participation.
- Note: This criterion does not include the receipt of RSVpreF in the efficacy study. Per inclusion criterion #6, receipt of RSVpreF in the efficacy study is required to participate in Substudy A.
- Investigator site staff or Pfizer employees directly involved in the conduct of the study, site staff otherwise supervised by the investigator, and their respective family members.
- Participant was confirmed by the sponsor to have previously received the study intervention more than once.
- Substudy B
- Bleeding diathesis or condition associated with prolonged bleeding that would, in the opinion of the investigator, contraindicate intramuscular injection.
- History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the study intervention(s) or any related vaccine.
- Serious chronic disorder including metastatic malignancy, end-stage renal disease with or without dialysis, clinically unstable cardiac disease, or any other disorder that, in the investigator's opinion, excludes the participant from participating in the study.
- Immunocompromised individuals with known or suspected immunodeficiency, as determined by history and/or laboratory/physical examination.
- Other medical or psychiatric condition including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
- Participation in other studies involving an investigational product within 28 days prior to consent and/or through and including the 6-months follow-up visit (Visit 203).
- Note: This criterion does not apply to participants who are participating in a follow-up period for another study involving a study intervention that is an investigational drug or vaccine, if receipt of the last dose was at least 6 months prior to consenting for this study and there is no further dosing anticipated from the previous study during the participant's participation in this study - Individuals who receive chronic systemic treatment with immunosuppressive therapy, including cytotoxic agents, monoclonal antibodies, systemic corticosteroids, or radiotherapy, eg, for cancer or an autoimmune disease, from 60 days before study intervention administration or planned receipt throughout the study. If systemic corticosteroids have been administered short term (<14 days) for treatment of an acute illness, participants should not be enrolled in the study until corticosteroid therapy has been discontinued for at least 28 days before study intervention administration. Inhaled/nebulized, intra articular, intrabursal, or topical (skin or eyes) corticosteroids are permitted.
- Note: Participants with COPD or asthma can be enrolled if chronic corticosteroids do not exceed a dose equivalent to 10 mg/day of prednisone.
- Receipt of blood/plasma products or immunoglobulin within 60 days before study intervention administration.
- Previous vaccination with any licensed or investigational RSV vaccine or planned receipt during study participation.
- Note: This criterion does not include the receipt of RSVpreF in the efficacy study. Per inclusion criterion #6, receipt of RSVpreF in the efficacy study is required to participate in Substudy B.
- Investigator site staff or Pfizer employees directly involved in the conduct of the study, site staff otherwise supervised by the investigator, and their respective family members.
- Participant was confirmed by the sponsor to have previously received the study intervention more than once.
- Participants who completed Vaccination 1 from the efficacy study less than 9 months or greater than 15 months prior to revaccination.
- Substudy C
- Bleeding diathesis or condition associated with prolonged bleeding that would, in the opinion of the investigator, contraindicate intramuscular injection.
- History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the study intervention(s) or any related vaccine.
- Serious chronic disorder including metastatic malignancy, end-stage renal disease with or without dialysis, clinically unstable cardiac disease, or any other disorder that, in the investigator's opinion, excludes the participant from participating in the study.
- Immunocompromised individuals with known or suspected immunodeficiency, as determined by history and/or laboratory/physical examination.
- Other medical or psychiatric condition including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
- Participation in other studies involving an investigational product within 28 days prior to consent and/or through and including the 6-months follow-up visit (Visit 303 or Visit 306).
- Note: This criterion does not apply to participants who are participating in a follow-up period for another study involving a study intervention that is an investigational drug or vaccine, if receipt of the last dose was at least 6 months prior to consenting for this study and there is no further dosing anticipated from the previous study during the participant's participation in this study
- Individuals who receive chronic systemic treatment with immunosuppressive therapy, including cytotoxic agents, monoclonal antibodies, systemic corticosteroids, or radiotherapy, eg, for cancer or an autoimmune disease, from 60 days before study intervention administration or planned receipt throughout the study. If systemic corticosteroids have been administered short term (<14 days) for treatment of an acute illness, participants should not be enrolled in the study until corticosteroid therapy has been discontinued for at least 28 days before study intervention administration. Inhaled/nebulized, intra articular, intrabursal, or topical (skin or eyes) corticosteroids are permitted.
- Note: Participants with COPD or asthma can be enrolled if chronic corticosteroids do not exceed a dose equivalent to 10 mg/day of prednisone.
- Receipt of blood/plasma products or immunoglobulin within 60 days before study intervention administration.
- Previous vaccination with any licensed or investigational RSV vaccine or planned receipt during study participation.
- Note: This criterion does not include the receipt of RSVpreF in the efficacy study. Per inclusion criterion #6, receipt of RSVpreF in the efficacy study is required to participate in Substudy C.
- Investigator site staff or Pfizer employees directly involved in the conduct of the study, site staff otherwise supervised by the investigator, and their respective family members.
- Participant was confirmed by the sponsor to have previously received the study intervention more than once.
- Prior history of any subtype of Guillain-Barré syndrome of any etiology.
- Current or prior participation in Substudy A or Substudy B.
- Participants who completed Vaccination 1 from the efficacy study less than 32 months or greater than 40 months prior to revaccination.
Trial locations and contacts
263 sites in 7 countries.
263 sites in 7 countries
United States176 sites
Javara - Privia Medical Group Georgia - Albany
Albany, Georgia, 31707
JEM Research Institute
Atlantis, Florida, 33462
Lynn Institute of Denver
Aurora, Colorado, 80012
Benchmark Research
Austin, Texas, 78705
Innovo Research - Austin Regional Clinic
Austin, Texas, 78726
Tekton Research, LLC.
Austin, Texas, 78745
IDEAL Clinical Research
Aventura, Florida, 33180
Tekton Research, LLC.
Beaumont, Texas, 77706
Northwest Clinical Research Center
Bellevue, Washington, 98007
ActivMed Practices & Research, LLC
Beverly, Massachusetts, 01915
Velocity Clinical Research, Binghamton
Binghamton, New York, 13905
St. Vincent's Birmingham (Pharmacy)
Birmingham, Alabama, 35205
St. Vincent's Birmingham
Birmingham, Alabama, 35205
Capital Area Research, LLC
Camp Hill, Pennsylvania, 17011
Hope Clinical Research
Canoga Park, California, 91303
Atrium Health - Strive Vaccine Research Clinic
Charlotte, North Carolina, 28207
Tryon Medical Partners, PLLC
Charlotte, North Carolina, 28210
Accellacare - Charlotte
Charlotte, North Carolina, 28211
Sensenbrenner Primary Care Research Office
Charlotte, North Carolina, 28277
Great Lakes Clinical Trials, LLC dba Flourish Research
Chicago, Illinois, 60640
eStudySite
Chula Vista, California, 91911
Velocity Clinical Research, Cincinnati, Mt. Auburn
Cincinnati, Ohio, 45219
Velocity Clinical Research - Cincinnati
Cincinnati, Ohio, 45242
Velocity Clinical Research, Springdale
Cincinnati, Ohio, 45246
Innovative Research of West Florida
Clearwater, Florida, 33756
Invictus Clinical Research Group, LLC
Coconut Creek, Florida, 33073
Benchmark Research
Colton, California, 92324
Centricity Research Columbus Ohio Multispecialty
Columbus, Ohio, 43213
Javara - Privia Medical Group Gulf Coast - The Woodlands HWH
Conroe, Texas, 77384
The Corvallis Clinic, PC
Corvallis, Oregon, 97330
Nature Coast Clinical Research
Crystal River, Florida, 34429
North Texas Infectious Diseases Consultants, P.A
Dallas, Texas, 75246
Universal Axon Clinical Research, LLC (Administrative)
Doral, Florida, 33166
J. Lewis Research, Inc. / Foothill Family Clinic Draper
Draper, Utah, 84020
West Coast Research
Dublin, California, 94568
Velocity Clinical Research, Providence
East Greenwich, Rhode Island, 02818
Tekton Research, LLC.
Edmond, Oklahoma, 73013
Skyline Medical Center, PC/CCT Research
Elkhorn, Nebraska, 68022
Central Erie Primary Care
Erie, Pennsylvania, 16508
Michigan Center of Medical Research (MICHMER)
Farmington Hills, Michigan, 48334
Benchmark Research
Fort Worth, Texas, 76135
Texas Health Family Care
Fort Worth, Texas, 76135
Allure Health at Mt. Olympus Medical Research
Friendswood, Texas, 77546
Lenzmeier Family Medicine / Avacare
Glendale, Arizona, 85308
Velocity Clinical Research, Grants Pass
Grants Pass, Oregon, 97527
Ascension St. John Hospital Vaccine Research Unit
Grosse Pointe Woods, Michigan, 48236
Drug Trials America
Hartsdale, New York, 10530
Indago Research & Health Center, Inc
Hialeah, Florida, 33012
Doral Medical Research, LLC
Hialeah, Florida, 33016
Coastal Heritage Clinical Research
Hinesville, Georgia, 31313
Corning Center for Clinical Research
Horseheads, New York, 14845
Hany H. Ahmed, MD
Houston, Texas, 77008
Helios Clinical Research - HOU
Houston, Texas, 77008
HG Pediatrics
Houston, Texas, 77008
Trio Clinical Trials, LLC
Houston, Texas, 77008
Van Tran Family Practice
Houston, Texas, 77008
Ventavia Research Group, LLC
Houston, Texas, 77008
Centex Studies
Houston, Texas, 77058
DM Clinical Research - Cy Fair
Houston, Texas, 77065
DM Clinical Research- Cyfair
Houston, Texas, 77065
DM Clinical Research - Bellaire
Houston, Texas, 77081
Centex Studies
Houston, Texas, 77090
DM Clinical Research - Humble
Humble, Texas, 77338
DM Clinical Research, Martin Diagnostic Clinic
Humble, Texas, 77338
Marvel Clinical Research 002, LLC
Huntington Beach, California, 92647
Medical Affiliated Research Center
Huntsville, Alabama, 35801
Snake River Research, PLLC
Idaho Falls, Idaho, 83404
University of Iowa
Iowa City, Iowa, 52242
Ochsner Clinic Foundation
Kenner, Louisiana, 70065
Ochsner Medical Center - Kenner
Kenner, Louisiana, 70065
AMR Clinical
Knoxville, Tennessee, 37909
Accellacare US Inc., d/b/a Accellacare of Knoxville
Knoxville, Tennessee, 37912
M3 Wake Research - Lake City
Lake City, Florida, 32055
Chemidox Clinical Trials
Lancaster, California, 93534
Milton Haber, M.D.
Laredo, Texas, 78041
Milton Haber, MD
Laredo, Texas, 78041
Wr-Crcn, Llc.
Las Vegas, Nevada, 89106
Alliance for Multispecialty Research, LLC
Las Vegas, Nevada, 89119
Tanner Clinic
Layton, Utah, 84041
AMR Clinical
Lexington, Kentucky, 40509
Ark Clinical Research
Long Beach, California, 90815
Tekton Research LLC
Longmont, Colorado, 80501
Downtown L.A. Research Center, Inc.
Los Angeles, California, 90017
Velocity Clinical Research, Medford
Medford, Oregon, 97504
DM Clinical Research
Melrose Park, Illinois, 60160
Solaris Clinical Research
Meridian, Idaho, 83646
SMS Clinical Research
Mesquite, Texas, 75149
Velocity Clinical Research, Metairie
Metairie, Louisiana, 70006
ActivMed Practices & Research, LLC
Methuen, Massachusetts, 01844
Optimus U Corporation
Miami, Florida, 33125
Advance Medical Research Center
Miami, Florida, 33135
Flourish Research - Miami, LLC
Miami, Florida, 33135
Optimus U Corporation
Miami, Florida, 33135
Next Phase Research Alliance
Miami, Florida, 33144
New Horizon Research Center
Miami, Florida, 33165
De La Cruz Research Center, LLC
Miami, Florida, 33184
Global Health Research Center, Inc.
Miami Lakes, Florida, 33016
Clinical Research Consulting
Milford, Connecticut, 06460
MOC Research
Mishawaka, Indiana, 46544
Clinical Research Associates, Inc.
Nashville, Tennessee, 37203
Velocity Clinical Research, North Hollywood
North Hollywood, California, 91606
Las Vegas Clinical Trials
North Las Vegas, Nevada, 89030
Affinity Health Corp
Oak Brook, Illinois, 60523
Accellacare - DuPage
Oak Lawn, Illinois, 60453
Quality Clinical Research
Omaha, Nebraska, 68114
Headlands Research Orlando
Orlando, Florida, 32819
Clinica mi Salud by Focil Med
Oxnard, California, 93030
De Silva Medical Inc
Palmdale, California, 93551
Pines Care Research Center, LLC
Pembroke Pines, Florida, 33024
IDEAL Clinical Research
Pembroke Pines, Florida, 33026
DBC Research USA
Pembroke Pines, Florida, 33029
Penn Prevention Unit
Philadelphia, Pennsylvania, 19104
Phoenix Clinical LLC
Phoenix, Arizona, 85014
HOPE Research Institute
Phoenix, Arizona, 85018
The Pain Center of Arizona
Phoenix, Arizona, 85018
HOPE Research Institute
Phoenix, Arizona, 85023
Cognitive Clinical Trials, LLC
Phoenix, Arizona, 85044
Empire Clinical Research
Pomona, California, 91767
Sound Medical Research
Port Orchard, Washington, 98366
Summit Headlands, LLC
Portland, Oregon, 97210
Kaiser Permanente Northwest Center for Health Research
Portland, Oregon, 97227
ActivMed Practices and Research, LLC.
Portsmouth, New Hampshire, 03801
Paradigm Clinical Research Center
Redding, California, 96001
Artemis Institute for Clinical Research
Riverside, California, 92503
Rochester Clinical Research, LLC
Rochester, New York, 14609
University of Rochester Medical Center
Rochester, New York, 14642
Velocity Clinical Research, Rockville
Rockville, Maryland, 20854
Benchmark Research
Sacramento, California, 95864
Sun Research Institute
San Antonio, Texas, 78215
Clinical Trials of Texas, LLC dba Flourish Research
San Antonio, Texas, 78229
Clinical Trials of Texas, LLC
San Antonio, Texas, 78229
Artemis Institute for Clinical Research
San Diego, California, 92123
California Research Foundation
San Diego, California, 92123
Headlands Research Sarasota
Sarasota, Florida, 34243
Javara - Privia Medical Group Georgia - Savannah
Savannah, Georgia, 31406
Velocity Clinical Research, Savannah
Savannah, Georgia, 31406
Headlands Research - Scottsdale
Scottsdale, Arizona, 85260
Meridian Clinical Research, LLC
Sioux City, Iowa, 51106
South Jersey Infectious Disease
Somers Point, New Jersey, 08244
J. Lewis Research, Inc. / Jordan River Family Medicine
South Jordan, Utah, 84095
Saint Louis University
St Louis, Missouri, 63104
Sundance Clinical Research
St Louis, Missouri, 63141
Stamford Therapeutics Consortium
Stamford, Connecticut, 06905
Clinical Research Atlanta
Stockbridge, Georgia, 30281
Centricity Research Suffolk Primary Care
Suffolk, Virginia, 23435
Virginia Gastroenterology Clinical Research
Suffolk, Virginia, 23435
Dynamed Clinical Research, LP d/b/a DM Clinical Research
Sugar Land, Texas, 77478
Javara Inc.
Sugar Land, Texas, 77478
Mt Olympus Medical Research
Sugar Land, Texas, 77479
Precision Clinical Research
Sunrise, Florida, 33351
MultiCare Institute for Research & Innovation
Tacoma, Washington, 98405
MultiCare Medical Group
Tacoma, Washington, 98405
Alliance for Multispecialty Research, LLC
Tempe, Arizona, 85281
HOPE Research Institute
Tempe, Arizona, 85284
CHEAR Center LLC
The Bronx, New York, 10455
Javara Inc.
Thomasville, Georgia, 31792
Dynamed Clinical Research, LP d/b/a DM Clinical Research
Tomball, Texas, 77375
Oakland Medical Research
Troy, Michigan, 48085
Arcturus Healthcare , PLC, Troy Internal Medicine Research Division
Troy, Michigan, 48098
Noble Clinical Research
Tucson, Arizona, 85704
The Institute for Liver Health dba Arizona Clinical Trials
Tucson, Arizona, 85712
Velocity Clinical Research Valparaiso
Valparaiso, Indiana, 46383
Velocity Clinical Research, Vestal
Vestal, New York, 13850
Diablo Clinical Research, Inc.
Walnut Creek, California, 94598
IMA Clinical Research Warren
Warren Township, New Jersey, 07059
Allegiance Research Specialists, LLC
Wauwatosa, Wisconsin, 53226
Central Washington Health Services Association d/b/a Confluence Health
Wenatchee, Washington, 98801
Research Building
Wenatchee, Washington, 98801
Velocity Clinical Research, Salt Lake City
West Jordan, Utah, 84088
Accellacare - Wilmington - 1917 Tradd Court
Wilmington, North Carolina, 28401
Accellacare - Wilmington
Wilmington, North Carolina, 28401
Wake Forest University Health Sciences
Winston-Salem, North Carolina, 27157
Clinical Site Partners, LLC dba Flourish Research
Winter Park, Florida, 32789
Conquest Research
Winter Park, Florida, 32789
University of Massachusetts Chan Medical School
Worcester, Massachusetts, 01655
Tekton Research, Inc
Yukon, Oklahoma, 73099
South Africa21 sites
Worthwhile Clinical Trials
Benoni, Gauteng, 1500
Josha Research
Bloemfontein, Free State, 9301
Synexus - Helderberg Clinical Research Centre - Somerset West
Cape Town, Western Cape, 7130
TREAD Research
Cape Town, Western Cape, 7500
MERCLINCO (Pty) Ltd - Kempton
Kempton Park, Gauteng, 1619
MERC Research (Pty) Ltd - Middelburg
Middelburg, Mpumalanga, 1055
Dr A Jacovides & Partners Inc.
Midrand, Gauteng, 1685
Newtown Clinical Research Centre (PTY) LTD
Newtown, Gauteng, 2001
Be Part Yoluntu Centre
Paarl, Western Cape, 7626
Global Clinical Trials
Pretoria, Gauteng, 0083
About Allergy
Pretoria, Gauteng, 0181
Into Research
Pretoria, Gauteng, 0181
Jongaie Research
Pretoria, Gauteng, 0183
Synexus SA- Watermeyer Clinical Research Center
Pretoria, Gauteng, 0184
Emmed Research
Pretoria, 0002
Botho Ke Bontle Health Services
Pretoria, 0184
Helderberg Clinical Trials Centre
Somerset West, Western Cape, 7129
Setshaba Research Centre
Soshanguve, Gauteng, 0152
Wits Vaccines & Infectious Diseases Analytics
Soweto, Gauteng, 2195
FCRN Clinical Trial Centre
Vereeniging, Gauteng, 1935
Welkom Clinical Trial Centre (MERC WELKOM)
Welkom, Free State, 9460
Japan19 sites
Sasaki Clinic
Amagasaki, Hyōgo, 660-0827
Nihonbashi Sakura Clinic
Chuo-ku, Tokyo, 103-0025
Tokyo Eki Center Building Clinic
Chuo-ku, Tokyo, 103-0027
Fukuwa Clinic
Chuo-ku, Tokyo, 104-0031
Tokyo Asbo Clinic
Chuo-ku, Tokyo, 104-0031
Tenjin General Clinic
Fukuoka, Fukuoka, 810-0021
SOUSEIKAI PS Clinic
Fukuoka, 812-0025
Medical Corp. Seikoukai New Medical Research System Clinic
Hachioji-shi, Tokyo, 192-0046
Seishinkai Inoue Hospital
Itoshima, Fukuoka, 819-1104
Sugiura Clinic
Kawaguchi, Saitama, 332-0012
Medical Corporation Heishinkai OPHAC Hospital
Osaka, Osaka, 532-0003
AMC Nishiumeda Clinic
Osaka, 530-0001
Hillside Clinic Jingumae
Shibuya-ku, Tokyo, 1500001
Clinical Research Hospital Tokyo
Shinjuku-ku, Tokyo, 160-0004
Clinical Research Hospital Tokyo
Shinjuku-ku, Tokyo, 162-0053
Oda Clinic
Shinjuku-ku, Tokyo, 169-0072
Souseikai Sumida Hospital
Sumida-ku, Tokyo, 130-0004
Sekino Hospital
Toshima-ku, Tokyo, 171-0014
Motomachi Takatsuka Naika Clinic
Yokohama, Kanagawa, 231-0023
Canada15 sites
Aggarwal and Associates Limited
Brampton, Ontario, L6T 0G1
Kaye Edmonton Clinic
Edmonton, Alberta, T6G 1Z1
University Of Alberta Hospital
Edmonton, Alberta, T6G 2B7
Dawson Clinical Research Inc
Guelph, Ontario, N1H 1B1
Premier Clinical Trial Network
Hamilton, Ontario, L8L 5G4
Centricity Research Mirabel Multispecialty
Mirabel, Quebec, J7J 2K8
Clinique de Médecine Urbaine du Quartier Latin
Montreal, Quebec, H2L 4E9
Alpha Recherche Clinique
Québec, Quebec, G2J 0C4
Diex Recherche Quebec
Québec, G1V 4T3
Centre de Recherche Saint-Louis inc.
Québec, G1W 4R4
Diex Recherche Sherbrooke
Sherbrooke, Quebec, J1L 0H8
Centricity Research Toronto LMC Multispecialty
Toronto, Ontario, M4G 3E8
Dr. Anil K. Gupta Medicine Professional Corporation
Toronto, Ontario, M9V 4B4
Centricity Research Toronto Manna Multispecialty
Toronto, Ontario, M9W 4L6
Diex Recherche Inc. Division Victoriaville
Victoriaville, Quebec, G6P 3Z8
Finland13 sites
Espoo Vaccine Research Clinic
Espoo, 02230
FVR, Etelä-Helsingin rokotetutkimusklinikka
Helsinki, 00100
Helsinki East Vaccine Research Clinic
Helsinki, 00930
Järvenpää Vaccine Research Clinic
Jarvenpaa, 04400
Terveystalo Jyväskylä
Jyväskylä, 40100
Kokkola Vaccine Research Clinic
Kokkola, 67100
Oulu Vaccine Research Clinic
Oulu, 90220
Pori Vaccine Research Clinic
Pori, 28100
Seinäjoki Vaccine Research Clinic
Seinäjoki, 60100
Tampere Vaccine Research Clinic
Tampere, 33100
Terveystalo Tampere
Tampere, 33100
Terveystalo Turku Pulssi
Turku, 20100
Turku Vaccine Research Clinic
Turku, 20520
Netherlands11 sites
Meander Medisch Centrum
Amersfoort, 3813 TZ
PoliDirect Amsterdam West
Amsterdam, 1064 BP
Huisartsencentrum Parklaan
Eindhoven, 5613 BE
Huisartsenpraktijk Radesingel
Groningen, 9718 TA
Gezondheidscentrum Leonardus
Helmond, 5701 AH
Spaarne Gasthuis
Hoofddorp, 2134 TM
PoliDirect Nieuwegein
Nieuwegein, 3431 HR
Franciscus Gasthuis & Vlietland, location Gasthuis
Rotterdam, 3045 PM
Huisartsen Soest
Soest, 3762BN
UMC Utrecht
Utrecht, 3584 CX
Julius Clinical Breda
Zeist, 3703 CD
Argentina8 sites
Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich
CABA, Buenos Aires, 1426
Fundación Respirar
CABA, Buenos Aires, C1426ABP
Clinica Privada del Sol S.A.
Córdoba, 5000
Clinica Privada Instituto Medico Platense S.A.
La Plata, Buenos Aires, B1900AVG
Instituto De Investigaciones Clínicas Mar Del Plata
Mar del Plata, Buenos Aires, B7600FZO
IMAC - Instituto Medico de Alta Complejidad
Salta, 4400
Clinica Mayo de Urgencias Medicas Cruz Blanca S.R.L
San Miguel de Tucumán, Tucumán Province, 4000
Hospital de Clinicas Presidente Nicolas Avellaneda
San Miguel de Tucumán, Tucumán Province, 4000
About this study
Official title: A PHASE 3 STUDY TO EVALUATE THE EFFICACY, IMMUNOGENICITY, AND SAFETY OF RESPIRATORY SYNCYTIAL VIRUS (RSV) PREFUSION F SUBUNIT VACCINE IN ADULTS
Efficacy Study: This randomized, double-blinded, placebo-controlled Phase 3 study is designed to assess the safety, immunogenicity, and efficacy of a single dose of RSVpreF in the prevention of LRTI-RSV in adults:
- At a dose of 120µg.
- In adults 60 years of age and older.
- The duration of the study for each participant will be up to approximately 24 months.
- The study will be conducted in the United States, Canada, Netherlands, Finland, Argentina, Japan and South Africa.
Read more
Substudy A: This study is an extension of the efficacy study and was designed to evaluate the safety and immunogenicity of a second dose of RSVpreF when administered after a dosing interval of approximately 2 years:
- At a dose of 120µg (as studied in the Phase 3 Efficacy Study)
- Blood samples will be collected for antibody testing.
- The duration of the study for each participant will be up to approximately 18 months.
- The study will be conducted in the United States and Argentina.
Substudy B: This study was designed to evaluate the safety and immunogenicity of a second dose of RSVpreF when administered after a dosing interval of approximately 1 year:
- At a dose of 120µg (as studied in the Phase 3 Efficacy Study)
- Blood samples will be collected for antibody testing.
- The duration of the study for each participant will be up to approximately 18 months.
- The study will be conducted in Argentina.
Substudy C: This study was designed to evaluate the safety and immunogenicity of a second dose of RSVpreF when administered after a dosing interval of either 3 or 4 years:
- At a dose of 120µg (as studied in the Phase 3 Efficacy Study)
- Participants will receive either placebo or a second dose of RSVpreF approximately 3 or 4 years after receiving the initial dose of RSVpreF in the main efficacy study.
- Blood samples will be collected for antibody testing.
- The duration of the study for each participant will be up to approximately 24 months.
- The study will be conducted in the United States and Canada.
- Conditions
- Lower Respiratory Tract Illness
- Being tested
- RSVpreF, Placebo
- Keywords
- Lower Respiratory Tract Illness, RSV, Vaccine
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
RSVpreFBiological
RSV vaccine (RSVpreF)
PlaceboBiological
Placebo
| Study group | Role | What they receive |
|---|---|---|
| Efficacy Study: RSVpreF vaccine | Experimental | RSVpreF Receives: Biological: RSVpreF |
| Efficacy Study: Placebo dose | Placebo comparator | Placebo Receives: Biological: Placebo |
| SSA: Vaccination of RSVpreF recipients with RSVpreF (Year 2 revaccination) | Experimental | Participants who originally received RSVpreF in the Efficacy Study and are eligible for SSA will receive RSVpreF in SSA. Receives: Biological: RSVpreF |
| SSA: Vaccination of RSVpreF recipients with Placebo | Placebo comparator | Participants who originally received RSVpreF in the Efficacy Study and are eligible for SSA will receive Placebo in SSA. Receives: Biological: Placebo |
| SSB: Vaccination of RSVpreF recipients with RSVpreF (Year 1 revaccination) | Experimental | Participants who originally received RSVpreF in the Efficacy Study and are eligible for SSB will receive RSVpreF in SSB. Receives: Biological: RSVpreF |
| SSB: Vaccination of RSVpreF recipients with Placebo | Placebo comparator | Participants who originally received RSVpreF in the Efficacy Study and are eligible for SSB will receive Placebo in SSB. Receives: Biological: Placebo |
| SSC: Vaccination of RSVpreF recipients with RSVpreF (Year 3 revaccination) | Experimental | Participants who originally received RSVpreF in the Efficacy Study and are eligible for SSC will receive RSVpreF at the Year 3 vaccination followed by placebo at the Year 4 vaccination in SSC. Receives: Biological: RSVpreF |
| SSC: Vaccination of RSVpreF recipients with RSVpreF (Year 4 revaccination) | Experimental | Participants who originally received RSVpreF in the Efficacy Study and are eligible for SSC will receive placebo at the Year 3 vaccination followed by RSVpreF at the Year 4 vaccination in SSC. Receives: Biological: RSVpreF |
| SSC: Vaccination of RSVpreF recipients with Placebo | Placebo comparator | Participants who originally received RSVpreF in the Efficacy Study and are eligible for SSC will receive placebo at both the Year 3 and Year 4 vaccination in SSC. Receives: Biological: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Efficacy Study: Number of first episode of RSV-associated lower respiratory tract illness (LRTI-RSV) in the first RSV season
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. LRTI-RSV is defined as an ARI with 2 or more of the lower respiratory signs/symptoms lasting more than 1 day during the same illness, plus RT-PCR-confirmed RSV infection within 7 days of ARI symptom onset.
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. LRTI-RSV is defined as an ARI with 3 or more of the lower respiratory signs/symptoms lasting more than 1 day during the same illness, plus RT-PCR-confirmed RSV infection within 7 days of ARI symptom onset.
Measured: From Day 15 after vaccination until the end of season 1 visit (an average of 6 months)
Efficacy Study: Proportion of participants reporting prompted local reactions within 7-days after vaccination
Local reactions included pain at injection site, redness and swelling recorded by participants in an e-diary. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 cm and graded as mild: 2.5 to 5.0 cm, moderate: > 5.0 to 10.0 cm and severe: >10 cm. Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfere with daily activity and severe: prevented daily activity
Measured: Within 7 days after vaccination
Efficacy Study: Proportion of participants reporting prompted systemic events within 7-days after vaccination
Systemic reactions:fever, fatigue/tiredness, headache, nausea, muscle pain, joint pain, vomiting, diarrhea and any systemic event recorded by participants in an e-diary. Fever: greater than equal to (>=)38.0 degrees (deg) Celsius (C), mild (>=38.0 to 38.4 deg C, >38.4 to 38.9 deg C), moderate (>38.9 to 40.0 deg C and >40.0 deg C), severe (>38.9 deg C to 40.0 deg C) and grade 4 (>40.0 deg C). Fatigue, headache, nausea, muscle pain and joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24 hours(h), moderate: >2 times in 24h and severe: requires intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h.
Measured: Within 7 days after vaccination
Efficacy Study: Proportion of participants reporting AE within 1-month after vaccination
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. AEs included both serious and non-serious adverse events.
Measured: Within 1 month after vaccination (up to 35 days)
Efficacy Study: Proportion of participants reporting SAE throughout the study
SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
Measured: Throughout the study duration (an average of 30 months)
Efficacy Study: Proportion of participants reporting NDCMC throughout the study
An NDCMC is defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects (eg, asthma).
Measured: Throughout the study duration (an average of 30 months)
SSA: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received 2-dose of RSVpreF
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean Titers (GMTs), and geometric mean fold rise (GMFR). The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
Measured: Before revaccination and 1, 6, 12 and 18-months after revaccination with RSVpreF in SSA
SSA: Proportion of participants reporting prompted local reactions within 7-days after revaccination
Local reactions included pain at injection site, redness and swelling recorded by participants in an e-diary. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 cm and graded as mild: 2.5 to 5.0 cm, moderate: > 5.0 to 10.0 cm and severe: >10 cm. Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfere with daily activity and severe: prevented daily activity
Measured: Within 7 days after revaccination
SSA: Proportion of participants reporting prompted systemic events within 7-days after revaccination
Systemic reactions:fever, fatigue/tiredness, headache, nausea, muscle pain, joint pain, vomiting, diarrhea and any systemic event recorded by participants in an e-diary. Fever: greater than equal to (>=)38.0 degrees (deg) Celsius (C), mild (>=38.0 to 38.4 deg C, >38.4 to 38.9 deg C), moderate (>38.9 to 40.0 deg C and >40.0 deg C), severe (>38.9 deg C to 40.0 deg C) and grade 4 (>40.0 deg C). Fatigue, headache, nausea, muscle pain and joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24 hours(h), moderate: >2 times in 24h and severe: requires intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h.
Measured: Within 7 days after revaccination
SSA: Proportion of participants reporting AE within 1-month after revaccination
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. AEs included both serious and non-serious adverse events.
Measured: Within 1 month after revaccination (up to 35 days)
SSA: Proportion of participants reporting SAE throughout the study
SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
Measured: Throughout the study duration (approximately 18 months)
SSA: Proportion of participants reporting NDCMC throughout the study
An NDCMC is defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects (eg, asthma).
Measured: Throughout the study duration (approximately 18 months)
SSB: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received 2-dose of RSVpreF
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean Titers (GMTs), and geometric mean fold rise (GMFR). The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
Measured: Before revaccination and 1, 6, 12 and 18-months after revaccination with RSVpreF in SSB
SSB: Proportion of participants reporting prompted local reactions within 7-days after revaccination
Local reactions included pain at injection site, redness and swelling recorded by participants in an e-diary. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 cm and graded as mild: 2.5 to 5.0 cm, moderate: > 5.0 to 10.0 cm and severe: >10 cm. Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfere with daily activity and severe: prevented daily activity.
Measured: Within 7 days after revaccination
SSB: Proportion of participants reporting prompted systemic events within 7-days after revaccination
Systemic reactions:fever, fatigue/tiredness, headache, nausea, muscle pain, joint pain, vomiting, diarrhea and any systemic event recorded by participants in an e-diary. Fever: greater than equal to (>=)38.0 degrees (deg) Celsius (C), mild (>=38.0 to 38.4 deg C, >38.4 to 38.9 deg C), moderate (>38.9 to 40.0 deg C and >40.0 deg C), severe (>38.9 deg C to 40.0 deg C) and grade 4 (>40.0 deg C). Fatigue, headache, nausea, muscle pain and joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24 hours(h), moderate: >2 times in 24h and severe: requires intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h.
Measured: SSB: Proportion of participants reporting prompted systemic events within 7-days after revaccination
SSB: Proportion of participants reporting AE within 1-month after revaccination
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. AEs included both serious and non-serious adverse events.
Measured: Within 1 month after revaccination (up to 35 days)
SSB: Proportion of participants reporting SAE throughout the study
SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
Measured: Throughout the study duration (approximately 18 months)
SSB: Proportion of participants reporting NDCMC throughout the study
An NDCMC is defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects (eg, asthma).
Measured: Throughout the study duration (approximately 18 months)
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received RSVpreF or placebo in SSC (Year 3)
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean NT ratios. The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
Measured: 1 month after revaccination in SSC (Year 3)
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received 1 dose in the Main Efficacy Study (preS2) and revaccination in SSC (Year 3)
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean NT ratios. The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
Measured: At preseason 2 (preS2) after receiving the initial vaccination in the efficacy study and 1 month after revaccination in SSC (Year 3)
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received 1 dose in the Main Efficacy Study and revaccination in SSC (Year 3)
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean of individual NT ratios (GMIR). The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
Measured: 1 month after receiving the initial vaccination in the efficacy study and 1 month after revaccination in SSC (Year 3)
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received RSVpreF or placebo in SSC (Year 4)
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean NT ratios. The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
Measured: 1 month after revaccination in SSC (Year 4)
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received 1 dose in the Main Efficacy Study (preS2) and revaccination in SSC (Year 4)
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean NT ratios. The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
Measured: At preseason 2 (preS2) after receiving the initial vaccination in the efficacy study and 1 month after revaccination in SSC (Year 4)
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received 1 dose in the Main Efficacy Study and revaccination in SSC (Year 4)
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean of individual NT ratios (GMIR). The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
Measured: 1 month after receiving the initial vaccination in the efficacy study and 1 month after revaccination in SSC (Year 4)
SSC: Proportion of participants reporting prompted local reactions within 7-days after revaccination (Year 3)
Local reactions included pain at injection site, redness and swelling recorded by participants in an e-diary. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 cm and graded as mild: 2.5 to 5.0 cm, moderate: > 5.0 to 10.0 cm and severe: >10 cm. Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfere with daily activity and severe: prevented daily activity.
Measured: Within 7 days after revaccination
SSC: Proportion of participants reporting prompted local reactions within 7-days after revaccination (Year 4)
Local reactions included pain at injection site, redness and swelling recorded by participants in an e-diary. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 cm and graded as mild: 2.5 to 5.0 cm, moderate: > 5.0 to 10.0 cm and severe: >10 cm. Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfere with daily activity and severe: prevented daily activity.
Measured: Within 7 days after revaccination
SSC: Proportion of participants reporting prompted systemic events within 7-days after revaccination (Year 3)
Systemic reactions:fever, fatigue/tiredness, headache, nausea, muscle pain, joint pain, vomiting, diarrhea and any systemic event recorded by participants in an e-diary. Fever: greater than equal to (>=)38.0 degrees (deg) Celsius (C), mild (>=38.0 to 38.4 deg C, >38.4 to 38.9 deg C), moderate (>38.9 to 40.0 deg C and >40.0 deg C), severe (>38.9 deg C to 40.0 deg C) and grade 4 (>40.0 deg C). Fatigue, headache, nausea, muscle pain and joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24 hours(h), moderate: >2 times in 24h and severe: requires intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h.
Measured: Within 7 days after revaccination
SSC: Proportion of participants reporting prompted systemic events within 7-days after revaccination (Year 4)
Systemic reactions:fever, fatigue/tiredness, headache, nausea, muscle pain, joint pain, vomiting, diarrhea and any systemic event recorded by participants in an e-diary. Fever: greater than equal to (>=)38.0 degrees (deg) Celsius (C), mild (>=38.0 to 38.4 deg C, >38.4 to 38.9 deg C), moderate (>38.9 to 40.0 deg C and >40.0 deg C), severe (>38.9 deg C to 40.0 deg C) and grade 4 (>40.0 deg C). Fatigue, headache, nausea, muscle pain and joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24 hours(h), moderate: >2 times in 24h and severe: requires intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h.
Measured: Within 7 days after revaccination
SSC: Proportion of participants reporting AE within 1-month after revaccination (Year 3)
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. AEs included both serious and non-serious adverse events.
Measured: Within 1 month after revaccination (up to 35 days)
SSC: Proportion of participants reporting AE within 1-month after revaccination (Year 4)
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. AEs included both serious and non-serious adverse events.
Measured: Within 1 month after revaccination (up to 35 days)
SSC: Proportion of participants reporting SAE after revaccination (Year 3)
SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
Measured: Following revaccination and throughout the study duration (approximately 24 months)
SSC: Proportion of participants reporting SAE after revaccination (Year 4)
SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
Measured: Following revaccination and throughout the study duration (approximately 12 months)
SSC: Proportion of participants reporting NDCMC after revaccination (Year 3)
An NDCMC is defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects (eg, asthma).
Measured: Following revaccination and throughout the study duration (approximately 24 months)
SSC: Proportion of participants reporting NDCMC after revaccination (Year 4)
An NDCMC is defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects (eg, asthma).
Measured: Following revaccination and throughout the study duration (approximately 12 months)
Secondary outcomes (12)
Efficacy Study: Number of first episode of RSV-associated severe LRTI (sLRTI-RSV) in the first RSV season
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. sLRTI-RSV is defined as LRTI-RSV with at least 1 of the conditions: 1)Hospitalization due to LRTI-RSV; 2)New/increased oxygen supplementation; 3)New/increased mechanical ventilation
Measured: From Day 15 after vaccination until the end of season 1 visit (an average of 6 months)
Efficacy Study: Number of first episode of LRTI-RSV in the second RSV season
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. LRTI-RSV is defined as an ARI with 2 or more of the lower respiratory signs/symptoms lasting more than 1 day during the same illness, plus RT-PCR-confirmed RSV infection within 7 days of ARI symptom onset.
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. LRTI-RSV is defined as an ARI with 3 or more of the lower respiratory signs/symptoms lasting more than 1 day during the same illness, plus RT-PCR-confirmed RSV infection within 7 days of ARI symptom onset.
Measured: During the second RSV season (an average of 6 months)
Efficacy Study: Number of first episode of LRTI-RSV across 2 RSV seasons
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. LRTI-RSV is defined as an ARI with 2 or more of the lower respiratory signs/symptoms lasting more than 1 day during the same illness, plus RT-PCR-confirmed RSV infection within 7 days of ARI symptom onset.
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. LRTI-RSV is defined as an ARI with 3 or more of the lower respiratory signs/symptoms lasting more than 1 day during the same illness, plus RT-PCR-confirmed RSV infection within 7 days of ARI symptom onset.
Measured: From Day 15 after vaccination until the end of season 2 visit (an average of 12 months of surveillance)
Efficacy Study: Number of first episode of RSV-associated ARI (ARI-RSV) in the first RSV season
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. ARI-RSV is defined as an ARI with at least 1 signs/symptoms lasting more than 1 day, plus RT-PCR-confirmed RSV infection within 7 days of ARI symptom onset.
Measured: From Day 15 after vaccination until the end of season 1 visit (an average of 6 months)
Efficacy Study: Number of first episode of ARI-RSV in the second RSV season
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. ARI-RSV is defined as an ARI with at least 1 signs/symptoms lasting more than 1 day, plus RT-PCR-confirmed RSV infection within 7 days of ARI symptom onset.
Measured: During the second RSV season (an average of 6 months)
Efficacy Study: Number of first episode of ARI-RSV across 2 RSV seasons
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. ARI-RSV is defined as an ARI with at least 1 signs/symptoms lasting more than 1 day, plus RT-PCR-confirmed RSV infection within 7 days of ARI symptom onset.
Measured: From Day 15 after vaccination until the end of season 2 visit (an average of 12 months of surveillance)
Efficacy Study: Number of first episode of sLRTI-RSV in the second RSV season
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. sLRTI-RSV is defined as LRTI-RSV with at least 1 of the conditions: 1)Hospitalization due to LRTI-RSV; 2)New/increased oxygen supplementation; 3)New/increased mechanical ventilation
Measured: During the second RSV season (an average of 6 months)
Efficacy Study: Number of first episode of sLRTI-RSV across 2 RSV seasons
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. sLRTI-RSV is defined as LRTI-RSV with at least 1 of the conditions: 1)Hospitalization due to LRTI-RSV; 2)New/increased oxygen supplementation; 3)New/increased mechanical ventilation
Measured: From Day 15 after vaccination until the end of season 2 visit (an average of 12 months of surveillance)
Efficacy Study: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean Titers (GMTs), and geometric mean fold rise (GMFR). The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
Measured: Before vaccination, 1-month after vaccination, before season 2 (approximately 12 months after vaccination)
SSA: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received placebo in SSA.
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean Titers (GMTs). The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
Measured: Before revaccination and 1, 6, 12 and 18-months after revaccination with placebo in SSA
SSB: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received placebo in SSB
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean Titers (GMTs). The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
Measured: Before revaccination and 1, 6, 12 and 18-months after revaccination with placebo in SSB
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received placebo in SSC.
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean Titers (GMTs). The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
Measured: Participants receiving placebo at the Year 3 vaccination: 1 month, 3 and 3.5 years after efficacy study vaccination
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Sep 2021
- Study start31 Aug 2021
- Primary completion18 Jan 2027 (estimated)
- Study completion18 Jan 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Lower Respiratory Tract IllnessStudies of the same condition, open and under way.
- More trials run by PfizerThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 38,861 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05035212
- Sponsor's protocol ID
- C3671013
- Other IDs
- 2021-003693-31
- Acronym
- RENOIR
- Status last verified
- Jan 2026
- First submitted
- 20 Aug 2021
- Last updated
- 28 Jan 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.
Publications
Walsh EE, Eiras D, Woodside J, Jiang Q, Patton M, Marc GP, Llapur C, Ramet M, Fukushima Y, Hussen N, Cardona J, Mikati T, Zareba A, Ilangovan K, Lino MM, Kalinina EV, Swanson KA, Gurtman A, Munjal I. Efficacy, Immunogenicity, and Safety of the Bivalent Respiratory Syncytial Virus (RSV) Prefusion F Vaccine in Older Adults Over 2 RSV Seasons. Clin Infect Dis. 2026 Feb 4;81(6):e680-e689. doi: 10.1093/cid/ciaf061.
PubMed 39928572Walsh EE, Perez Marc G, Zareba AM, Falsey AR, Jiang Q, Patton M, Polack FP, Llapur C, Doreski PA, Ilangovan K, Ramet M, Fukushima Y, Hussen N, Bont LJ, Cardona J, DeHaan E, Castillo Villa G, Ingilizova M, Eiras D, Mikati T, Shah RN, Schneider K, Cooper D, Koury K, Lino MM, Anderson AS, Jansen KU, Swanson KA, Gurtman A, Gruber WC, Schmoele-Thoma B; RENOIR Clinical Trial Group. Efficacy and Safety of a Bivalent RSV Prefusion F Vaccine in Older Adults. N Engl J Med. 2023 Apr 20;388(16):1465-1477. doi: 10.1056/NEJMoa2213836. Epub 2023 Apr 5.
PubMed 37018468
Study at a glance
From the registry record, last updated by the sponsor on 28 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A PHASE 3 STUDY TO EVALUATE THE EFFICACY, IMMUNOGENICITY, AND SAFETY OF RESPIRATORY SYNCYTIAL VIRUS (RSV) PREFUSION F SUBUNIT VACCINE IN ADULTS
- ClinicalTrials.gov ID
- NCT05035212
- Acronym / sponsor ID
- RENOIR / C3671013
- Conditions
- Lower Respiratory Tract Illness
- Keywords
- Lower Respiratory Tract Illness, RSV, Vaccine
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 38,861 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- 31 Aug 2021 (actual)
- Primary completion
- 18 Jan 2027 (estimated)
- Study completion
- 18 Jan 2027 (estimated)
- First posted
- 5 Sep 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Efficacy Study: This randomized, double-blinded, placebo-controlled Phase 3 study is designed to assess the safety, immunogenicity, and efficacy of a single dose of RSVpreF in the prevention of LRTI-RSV in adults:
- At a dose of 120µg.
- In adults 60 years of age and older.
- The duration of the study for each participant will be up to approximately 24 months.
- The study will be conducted in the United States, Canada, Netherlands, Finland, Argentina, Japan and South Africa.
Substudy A: This study is an extension of the efficacy study and was designed to evaluate the safety and immunogenicity of a second dose of RSVpreF when administered after a dosing interval of approximately 2 years:
- At a dose of 120µg (as studied in the Phase 3 Efficacy Study)
- Blood samples will be collected for antibody testing.
- The duration of the study for each participant will be up to approximately 18 months.
- The study will be conducted in the United States and Argentina.
Substudy B: This study was designed to evaluate the safety and immunogenicity of a second dose of RSVpreF when administered after a dosing interval of approximately 1 year:
- At a dose of 120µg (as studied in the Phase 3 Efficacy Study)
- Blood samples will be collected for antibody testing.
- The duration of the study for each participant will be up to approximately 18 months.
- The study will be conducted in Argentina.
Substudy C: This study was designed to evaluate the safety and immunogenicity of a second dose of RSVpreF when administered after a dosing interval of either 3 or 4 years:
- At a dose of 120µg (as studied in the Phase 3 Efficacy Study)
- Participants will receive either placebo or a second dose of RSVpreF approximately 3 or 4 years after receiving the initial dose of RSVpreF in the main efficacy study.
- Blood samples will be collected for antibody testing.
- The duration of the study for each participant will be up to approximately 24 months.
- The study will be conducted in the United States and Canada.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 9
| Arm | Type | Receives |
|---|---|---|
| Efficacy Study: RSVpreF vaccine | Experimental | Biological: RSVpreFRSVpreF |
| Efficacy Study: Placebo dose | Placebo comparator | Biological: PlaceboPlacebo |
| SSA: Vaccination of RSVpreF recipients with RSVpreF (Year 2 revaccination) | Experimental | Biological: RSVpreFParticipants who originally received RSVpreF in the Efficacy Study and are eligible for SSA will receive RSVpreF in SSA. |
| SSA: Vaccination of RSVpreF recipients with Placebo | Placebo comparator | Biological: PlaceboParticipants who originally received RSVpreF in the Efficacy Study and are eligible for SSA will receive Placebo in SSA. |
| SSB: Vaccination of RSVpreF recipients with RSVpreF (Year 1 revaccination) | Experimental | Biological: RSVpreFParticipants who originally received RSVpreF in the Efficacy Study and are eligible for SSB will receive RSVpreF in SSB. |
| SSB: Vaccination of RSVpreF recipients with Placebo | Placebo comparator | Biological: PlaceboParticipants who originally received RSVpreF in the Efficacy Study and are eligible for SSB will receive Placebo in SSB. |
| SSC: Vaccination of RSVpreF recipients with RSVpreF (Year 3 revaccination) | Experimental | Biological: RSVpreFParticipants who originally received RSVpreF in the Efficacy Study and are eligible for SSC will receive RSVpreF at the Year 3 vaccination followed by placebo at the Year 4 vaccination in SSC. |
| SSC: Vaccination of RSVpreF recipients with RSVpreF (Year 4 revaccination) | Experimental | Biological: RSVpreFParticipants who originally received RSVpreF in the Efficacy Study and are eligible for SSC will receive placebo at the Year 3 vaccination followed by RSVpreF at the Year 4 vaccination in SSC. |
| SSC: Vaccination of RSVpreF recipients with Placebo | Placebo comparator | Biological: PlaceboParticipants who originally received RSVpreF in the Efficacy Study and are eligible for SSC will receive placebo at both the Year 3 and Year 4 vaccination in SSC. |
Who may qualify
- Ages
- 60 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (36 listed)
- Participants who are willing and able to comply with all scheduled visits, vaccination plan, laboratory tests, lifestyle considerations, frequent symptom assessment by mobile device application, and other study procedures, including collection of nasal swabs by themselves and by study staff when indicated.
- Healthy participants who are determined by medical history, physical examination (if required), and clinical judgment of the investigator to be eligible for inclusion in the study.
- Note: Healthy participants with preexisting stable disease, defined as disease not requiring significant change in therapy or hospitalization for worsening disease during the 6 weeks before enrollment, can be included. Specific criteria for participants with known stable infection with HIV, HCV, or HBV can be found in the protocol.
- Adults who are ambulatory and live in the community, or in assisted living or long-term care residential facilities that provide minimal assistance, such that the participant is primarily responsible for self-care and activities of daily living.
- Capable of giving signed informed consent as described in the protocol, which includes compliance with the requirements and restrictions listed in the ICD and in this protocol.
Key exclusion criteria (59 listed)
- Bleeding diathesis or condition associated with prolonged bleeding that would, in the opinion of the investigator, contraindicate intramuscular injection.
- History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the study intervention(s) or any related vaccine.
- Serious chronic disorder including metastatic malignancy, end-stage renal disease with or without dialysis, clinically unstable cardiac disease, or any other disorder that, in the investigator's opinion, excludes the participant from participating in the study.
- Immunocompromised individuals with known or suspected immunodeficiency, as determined by history and/or laboratory/physical examination.
- Other medical or psychiatric condition including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| RSVpreFRSV vaccine (RSVpreF) | Biological | Efficacy Study: RSVpreF vaccine, SSA: Vaccination of RSVpreF recipients with RSVpreF (Year 2 revaccination), SSB: Vaccination of RSVpreF recipients with RSVpreF (Year 1 revaccination), SSC: Vaccination of RSVpreF recipients with RSVpreF (Year 3 revaccination), SSC: Vaccination of RSVpreF recipients with RSVpreF (Year 4 revaccination) |
| PlaceboPlacebo | Biological | Efficacy Study: Placebo dose, SSA: Vaccination of RSVpreF recipients with Placebo, SSB: Vaccination of RSVpreF recipients with Placebo, SSC: Vaccination of RSVpreF recipients with Placebo |
Primary outcome
Efficacy Study: Number of first episode of RSV-associated lower respiratory tract illness (LRTI-RSV) in the first RSV season
Time frame: From Day 15 after vaccination until the end of season 1 visit (an average of 6 months)
Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. LRTI-RSV is defined as an ARI with 2 or more of the lower respiratory signs/symptoms lasting more than 1 day during the same illness, plus RT-PCR-confirmed RSV infection within 7 days of ARI symptom onset. Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated acute respiratory illness (ARI) is assessed. LRTI-RSV is defined as an ARI with 3 or more of the lower respiratory signs/symptoms lasting more than 1 day during the same illness, plus RT-PCR-confirmed RSV infection within 7 days of ARI symptom onset.
Efficacy Study: Proportion of participants reporting prompted local reactions within 7-days after vaccination
Time frame: Within 7 days after vaccination
Local reactions included pain at injection site, redness and swelling recorded by participants in an e-diary. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 cm and graded as mild: 2.5 to 5.0 cm, moderate: > 5.0 to 10.0 cm and severe: >10 cm. Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfere with daily activity and severe: prevented daily activity
Efficacy Study: Proportion of participants reporting prompted systemic events within 7-days after vaccination
Time frame: Within 7 days after vaccination
Systemic reactions:fever, fatigue/tiredness, headache, nausea, muscle pain, joint pain, vomiting, diarrhea and any systemic event recorded by participants in an e-diary. Fever: greater than equal to (>=)38.0 degrees (deg) Celsius (C), mild (>=38.0 to 38.4 deg C, >38.4 to 38.9 deg C), moderate (>38.9 to 40.0 deg C and >40.0 deg C), severe (>38.9 deg C to 40.0 deg C) and grade 4 (>40.0 deg C). Fatigue, headache, nausea, muscle pain and joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24 hours(h), moderate: >2 times in 24h and severe: requires intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h.
Efficacy Study: Proportion of participants reporting AE within 1-month after vaccination
Time frame: Within 1 month after vaccination (up to 35 days)
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. AEs included both serious and non-serious adverse events.
Efficacy Study: Proportion of participants reporting SAE throughout the study
Time frame: Throughout the study duration (an average of 30 months)
SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
Efficacy Study: Proportion of participants reporting NDCMC throughout the study
Time frame: Throughout the study duration (an average of 30 months)
An NDCMC is defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects (eg, asthma).
SSA: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received 2-dose of RSVpreF
Time frame: Before revaccination and 1, 6, 12 and 18-months after revaccination with RSVpreF in SSA
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean Titers (GMTs), and geometric mean fold rise (GMFR). The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
SSA: Proportion of participants reporting prompted local reactions within 7-days after revaccination
Time frame: Within 7 days after revaccination
Local reactions included pain at injection site, redness and swelling recorded by participants in an e-diary. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 cm and graded as mild: 2.5 to 5.0 cm, moderate: > 5.0 to 10.0 cm and severe: >10 cm. Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfere with daily activity and severe: prevented daily activity
SSA: Proportion of participants reporting prompted systemic events within 7-days after revaccination
Time frame: Within 7 days after revaccination
Systemic reactions:fever, fatigue/tiredness, headache, nausea, muscle pain, joint pain, vomiting, diarrhea and any systemic event recorded by participants in an e-diary. Fever: greater than equal to (>=)38.0 degrees (deg) Celsius (C), mild (>=38.0 to 38.4 deg C, >38.4 to 38.9 deg C), moderate (>38.9 to 40.0 deg C and >40.0 deg C), severe (>38.9 deg C to 40.0 deg C) and grade 4 (>40.0 deg C). Fatigue, headache, nausea, muscle pain and joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24 hours(h), moderate: >2 times in 24h and severe: requires intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h.
SSA: Proportion of participants reporting AE within 1-month after revaccination
Time frame: Within 1 month after revaccination (up to 35 days)
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. AEs included both serious and non-serious adverse events.
SSA: Proportion of participants reporting SAE throughout the study
Time frame: Throughout the study duration (approximately 18 months)
SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
SSA: Proportion of participants reporting NDCMC throughout the study
Time frame: Throughout the study duration (approximately 18 months)
An NDCMC is defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects (eg, asthma).
SSB: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received 2-dose of RSVpreF
Time frame: Before revaccination and 1, 6, 12 and 18-months after revaccination with RSVpreF in SSB
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean Titers (GMTs), and geometric mean fold rise (GMFR). The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
SSB: Proportion of participants reporting prompted local reactions within 7-days after revaccination
Time frame: Within 7 days after revaccination
Local reactions included pain at injection site, redness and swelling recorded by participants in an e-diary. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 cm and graded as mild: 2.5 to 5.0 cm, moderate: > 5.0 to 10.0 cm and severe: >10 cm. Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfere with daily activity and severe: prevented daily activity.
SSB: Proportion of participants reporting prompted systemic events within 7-days after revaccination
Time frame: SSB: Proportion of participants reporting prompted systemic events within 7-days after revaccination
Systemic reactions:fever, fatigue/tiredness, headache, nausea, muscle pain, joint pain, vomiting, diarrhea and any systemic event recorded by participants in an e-diary. Fever: greater than equal to (>=)38.0 degrees (deg) Celsius (C), mild (>=38.0 to 38.4 deg C, >38.4 to 38.9 deg C), moderate (>38.9 to 40.0 deg C and >40.0 deg C), severe (>38.9 deg C to 40.0 deg C) and grade 4 (>40.0 deg C). Fatigue, headache, nausea, muscle pain and joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24 hours(h), moderate: >2 times in 24h and severe: requires intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h.
SSB: Proportion of participants reporting AE within 1-month after revaccination
Time frame: Within 1 month after revaccination (up to 35 days)
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. AEs included both serious and non-serious adverse events.
SSB: Proportion of participants reporting SAE throughout the study
Time frame: Throughout the study duration (approximately 18 months)
SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
SSB: Proportion of participants reporting NDCMC throughout the study
Time frame: Throughout the study duration (approximately 18 months)
An NDCMC is defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects (eg, asthma).
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received RSVpreF or placebo in SSC (Year 3)
Time frame: 1 month after revaccination in SSC (Year 3)
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean NT ratios. The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received 1 dose in the Main Efficacy Study (preS2) and revaccination in SSC (Year 3)
Time frame: At preseason 2 (preS2) after receiving the initial vaccination in the efficacy study and 1 month after revaccination in SSC (Year 3)
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean NT ratios. The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received 1 dose in the Main Efficacy Study and revaccination in SSC (Year 3)
Time frame: 1 month after receiving the initial vaccination in the efficacy study and 1 month after revaccination in SSC (Year 3)
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean of individual NT ratios (GMIR). The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received RSVpreF or placebo in SSC (Year 4)
Time frame: 1 month after revaccination in SSC (Year 4)
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean NT ratios. The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received 1 dose in the Main Efficacy Study (preS2) and revaccination in SSC (Year 4)
Time frame: At preseason 2 (preS2) after receiving the initial vaccination in the efficacy study and 1 month after revaccination in SSC (Year 4)
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean NT ratios. The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received 1 dose in the Main Efficacy Study and revaccination in SSC (Year 4)
Time frame: 1 month after receiving the initial vaccination in the efficacy study and 1 month after revaccination in SSC (Year 4)
RSV A and RSV B neutralizing titers (NT), expressed as Geometric Mean of individual NT ratios (GMIR). The NTs were calculated as the interpolated reciprocal of the serum dilution resulting in 50% reduction in the number of viral focus forming units when compared to the control without test serum.
SSC: Proportion of participants reporting prompted local reactions within 7-days after revaccination (Year 3)
Time frame: Within 7 days after revaccination
Local reactions included pain at injection site, redness and swelling recorded by participants in an e-diary. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 cm and graded as mild: 2.5 to 5.0 cm, moderate: > 5.0 to 10.0 cm and severe: >10 cm. Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfere with daily activity and severe: prevented daily activity.
SSC: Proportion of participants reporting prompted local reactions within 7-days after revaccination (Year 4)
Time frame: Within 7 days after revaccination
Local reactions included pain at injection site, redness and swelling recorded by participants in an e-diary. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 cm and graded as mild: 2.5 to 5.0 cm, moderate: > 5.0 to 10.0 cm and severe: >10 cm. Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfere with daily activity and severe: prevented daily activity.
SSC: Proportion of participants reporting prompted systemic events within 7-days after revaccination (Year 3)
Time frame: Within 7 days after revaccination
Systemic reactions:fever, fatigue/tiredness, headache, nausea, muscle pain, joint pain, vomiting, diarrhea and any systemic event recorded by participants in an e-diary. Fever: greater than equal to (>=)38.0 degrees (deg) Celsius (C), mild (>=38.0 to 38.4 deg C, >38.4 to 38.9 deg C), moderate (>38.9 to 40.0 deg C and >40.0 deg C), severe (>38.9 deg C to 40.0 deg C) and grade 4 (>40.0 deg C). Fatigue, headache, nausea, muscle pain and joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24 hours(h), moderate: >2 times in 24h and severe: requires intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h.
SSC: Proportion of participants reporting prompted systemic events within 7-days after revaccination (Year 4)
Time frame: Within 7 days after revaccination
Systemic reactions:fever, fatigue/tiredness, headache, nausea, muscle pain, joint pain, vomiting, diarrhea and any systemic event recorded by participants in an e-diary. Fever: greater than equal to (>=)38.0 degrees (deg) Celsius (C), mild (>=38.0 to 38.4 deg C, >38.4 to 38.9 deg C), moderate (>38.9 to 40.0 deg C and >40.0 deg C), severe (>38.9 deg C to 40.0 deg C) and grade 4 (>40.0 deg C). Fatigue, headache, nausea, muscle pain and joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24 hours(h), moderate: >2 times in 24h and severe: requires intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h.
SSC: Proportion of participants reporting AE within 1-month after revaccination (Year 3)
Time frame: Within 1 month after revaccination (up to 35 days)
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. AEs included both serious and non-serious adverse events.
SSC: Proportion of participants reporting AE within 1-month after revaccination (Year 4)
Time frame: Within 1 month after revaccination (up to 35 days)
An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. AEs included both serious and non-serious adverse events.
SSC: Proportion of participants reporting SAE after revaccination (Year 3)
Time frame: Following revaccination and throughout the study duration (approximately 24 months)
SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
SSC: Proportion of participants reporting SAE after revaccination (Year 4)
Time frame: Following revaccination and throughout the study duration (approximately 12 months)
SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
SSC: Proportion of participants reporting NDCMC after revaccination (Year 3)
Time frame: Following revaccination and throughout the study duration (approximately 24 months)
An NDCMC is defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects (eg, asthma).
SSC: Proportion of participants reporting NDCMC after revaccination (Year 4)
Time frame: Following revaccination and throughout the study duration (approximately 12 months)
An NDCMC is defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects (eg, asthma).
12 secondary outcomes
Efficacy Study: Number of first episode of RSV-associated severe LRTI (sLRTI-RSV) in the first RSV season
Time frame: From Day 15 after vaccination until the end of season 1 visit (an average of 6 months)
Efficacy Study: Number of first episode of LRTI-RSV in the second RSV season
Time frame: During the second RSV season (an average of 6 months)
Efficacy Study: Number of first episode of LRTI-RSV across 2 RSV seasons
Time frame: From Day 15 after vaccination until the end of season 2 visit (an average of 12 months of surveillance)
Efficacy Study: Number of first episode of RSV-associated ARI (ARI-RSV) in the first RSV season
Time frame: From Day 15 after vaccination until the end of season 1 visit (an average of 6 months)
Efficacy Study: Number of first episode of ARI-RSV in the second RSV season
Time frame: During the second RSV season (an average of 6 months)
Efficacy Study: Number of first episode of ARI-RSV across 2 RSV seasons
Time frame: From Day 15 after vaccination until the end of season 2 visit (an average of 12 months of surveillance)
Efficacy Study: Number of first episode of sLRTI-RSV in the second RSV season
Time frame: During the second RSV season (an average of 6 months)
Efficacy Study: Number of first episode of sLRTI-RSV across 2 RSV seasons
Time frame: From Day 15 after vaccination until the end of season 2 visit (an average of 12 months of surveillance)
Efficacy Study: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers
Time frame: Before vaccination, 1-month after vaccination, before season 2 (approximately 12 months after vaccination)
SSA: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received placebo in SSA.
Time frame: Before revaccination and 1, 6, 12 and 18-months after revaccination with placebo in SSA
SSB: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received placebo in SSB
Time frame: Before revaccination and 1, 6, 12 and 18-months after revaccination with placebo in SSB
SSC: Respiratory Syncytial Virus Subgroup A (RSV A) and RSV B neutralizing titers from participants who received placebo in SSC.
Time frame: Participants receiving placebo at the Year 3 vaccination: 1 month, 3 and 3.5 years after efficacy study vaccination
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Jan 2026.
- Derived from this study: PubMed 39928572Walsh EE, Eiras D, Woodside J, Jiang Q, Patton M, Marc GP, Llapur C, Ramet M, Fukushima Y, Hussen N, Cardona J, Mikati T, Zareba A, Ilangovan K, Lino MM, Kalinina EV, Swanson KA, Gurtman A, Munjal I. Efficacy, Immunogenicity, and Safety of the Bivalent Respiratory Syncytial Virus (RSV) Prefusion F Vaccine in Older Adults Over 2 RSV Seasons. Clin Infect Dis. 2026 Feb 4;81(6):e680-e689. doi: 10.1093/cid/ciaf061.
- Derived from this study: PubMed 37018468Walsh EE, Perez Marc G, Zareba AM, Falsey AR, Jiang Q, Patton M, Polack FP, Llapur C, Doreski PA, Ilangovan K, Ramet M, Fukushima Y, Hussen N, Bont LJ, Cardona J, DeHaan E, Castillo Villa G, Ingilizova M, Eiras D, Mikati T, Shah RN, Schneider K, Cooper D, Koury K, Lino MM, Anderson AS, Jansen KU, Swanson KA, Gurtman A, Gruber WC, Schmoele-Thoma B; RENOIR Clinical Trial Group. Efficacy and Safety of a Bivalent RSV Prefusion F Vaccine in Older Adults. N Engl J Med. 2023 Apr 20;388(16):1465-1477. doi: 10.1056/NEJMoa2213836. Epub 2023 Apr 5.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
- Individual participant dataSharing planned: Yes. Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Pfizer CT.gov Call Center study director
Pfizer
263 sites in 7 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing RSVpreF in people with Lower Respiratory Tract Illness, run by Pfizer at 263 sites in 7 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 36 inclusion and 59 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 28 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 263 sites in United States, South Africa, Japan, Canada, Finland and 2 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Efficacy Study: Number of first episode of RSV-associated lower respiratory tract illness (LRTI-RSV) in the first RSV season (time frame: From Day 15 after vaccination until the end of season 1 visit (an average of 6 months)). The study lists 34 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05035212, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Jan 2026.