Pneumococcal InfectionsPhase 3NCT03571607
A Safety And Immunogenicity Study Of A 13-valent Pneumococcal Conjugate Vaccine In Japanese Subjects Aged 6 To 64 Years.
A Phase 3 study testing 13-valent pneumococcal conjugate vaccine in people with Pneumococcal Infections, run by Pfizer at 8 sites in Japan.
Trial summary
This study is to evaluate the safety, tolerability and immunogenicity of a single dose of 13-valent pneumococcal conjugate vaccine in Japanese subjects aged 6 to 64 years who are considered to be at increased risk of pneumococcal disease and who are naive to pneumococcal vaccines. Read more about this study
- Who is it for?
- Ages 6 to 64 years
- Conditions the study is for
- Pneumococcal Infections
- What is being tested?
- 13-valent pneumococcal conjugate vaccine
- Type of treatment
- Vaccines, Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 206 participants
- Where
- 8 sitesJapan
- Study dates
- 12 Jul 2018to 16 Nov 2018
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 6 to 64 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
- Japanese males and females aged 6 to <65 years at enrollment.
- Subjects with an increased risk of pneumococcal disease determined by documented medical history, physical examination, and clinical judgment of the investigator.
Who cannot join
- Previous vaccination with any licensed or investigational pneumococcal vaccine, or planned receipt during study participation.
- End-stage disease including but not limited to metastatic malignancy, severe chronic obstructive pulmonary disease (COPD) requiring supplemental oxygen, or end-stage renal disease with or without dialysis.
- Graft-versus-host disease (GVHD), history of solid organ transplant within 6 months before investigational product administration or history of HSCT, or potential for solid organ transplant or HSCT during study participation.
- Receipt of cytotoxic chemotherapy or blood products within 3 months before investigational product administration or anti-B-cell antibodies within 6 months before investigational product administration through completion of study participation.
- Any contraindication to vaccination or vaccine components, including previous anaphylactic reaction to any vaccine or vaccine-related components.
- Documented S pneumoniae infection within the past 5 years before investigational product administration.
Trial locations and contacts
8 sites in 1 country.
8 sites in 1 country
Japan8 sites
Medical Co.LTA PS Clinic
Fukuoka, 812-0025
Fukuoka Children's Hospital
Fukuoka, 813-0017
Nippon Kokan Fukuyama Hospital
Fukuyama, Hiroshima, 721-0927
Fukuyama City Hospital
Fukuyama, Hiroshima, 721-8511
Kawasaki Municipal Hospital
Kawasaki, Kanagawa, 210-0013
National Hospital Organization Kumamoto Medical Center
Kumamoto, 860-0008
Daido Clinic
Nagoya, Aichi-ken, 457-8511
Nagano Prefectural Shinshu Medical Center
Suzaka, Nagano, 382-8577
About this study
Official title: A PHASE 3, MULTICENTER, SINGLE-ARM, OPEN-LABEL STUDY TO ASSESS THE SAFETY, TOLERABILITY, AND IMMUNOGENICITY OF A SINGLE DOSE OF 13-VALENT PNEUMOCOCCAL CONJUGATE VACCINE IN JAPANESE SUBJECTS AGED 6 TO 64 YEARS WHO ARE CONSIDERED TO BE AT INCREASED RISK OF PNEUMOCOCCAL DISEASE AND WHO ARE NAIVE TO PNEUMOCOCCAL VACCINES
This study is to evaluate the safety, tolerability and immunogenicity of a single dose of 13-valent pneumococcal conjugate vaccine in Japanese subjects aged 6 to 64 years who are considered to be at increased risk of pneumococcal disease and who are naive to pneumococcal vaccines.
- Conditions
- Pneumococcal Infections
- Being tested
- 13-valent pneumococcal conjugate vaccine
- Medical subject headings
- Pneumococcal Infections
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
13-valent pneumococcal conjugate vaccineBiological
Also called 13vPnC
A single dose (0.5 mL) will be administered intramuscularly into the deltoid muscle at visit 1.
| Study group | Role | What they receive |
|---|---|---|
| 13-valent pneumococcal conjugate vaccine | Experimental | Not described Receives: Biological: 13-valent pneumococcal conjugate vaccine |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of Participants Reporting Pre-Specified Local Reactions Within 7 Days After Vaccination in Participants Aged Between 6 to <18 Years
Local reactions were recorded using an electronic daily diary. Local reactions included redness, swelling and pain at injection site. Redness and swelling were graded as mild (0.5 to 2.0 centimeter [cm]), moderate (greater than [>] 2.0 to 7.0 cm) and severe (>7.0 cm) for participants aged 6 to <12 years, and as mild (2.5 to 5.0 cm), moderate (>5.0 to 10.0 cm) and, severe (>10.0 cm) for participants aged 12 to <18 years. Pain at injection site was graded as mild (did not interfere with activity), moderate (interfered with activity), and severe (prevented daily activity).
Measured: Day 1 up to Day 7
Percentage of Participants Reporting Pre-Specified Local Reactions Within 14 Days After Vaccination in Participants Aged Between 18 to <65 Years
Local reactions were recorded using an electronic daily diary. Local reactions included redness, swelling and pain at injection site. Redness and swelling were graded as mild (2.5 to 5.0 cm), moderate (>5.0 to 10.0 cm) and, severe (>10.0 cm). Pain at injection site was graded as mild (did not interfere with activity), moderate (interfered with activity), and severe (prevented daily activity).
Measured: Day 1 up to Day 14
Percentage of Participants Reporting Systemic Events and Use of Antipyretic or Pain Medication Within 7 Days After Vaccination in Participants Aged Between 6 to <18 Years
Systemic events included fever, vomiting, diarrhea, headache, fatigue, muscle and joint pain, and were recorded by using an e-diary. Use of antipyretic or pain medication was also collected by using an e-diary. Fever was graded as 37.5 to 38.4 degree Celsius (C), 38.5 to 38.9 degree C, 39.0 to 40.0 degree C and >40.0 degree C. Vomiting was graded as mild (1-2 times in 24 hours), moderate (>2 times in 24 hours) and severe (required intravenous hydration). Diarrhea was graded as mild (2-3 loose stools in 24 hours), moderate (4-5 loose stools in 24 hours) and severe (greater than or equals to [>=] 6 loose stools in 24 hours). Headache, fatigue, muscle pain and joint pain were graded as mild (no interference with activity), moderate (some interference with activity) and severe (significant, prevented daily activity).
Measured: Day 1 up to Day 7
Percentage of Participants Reporting Systemic Events and Use of Antipyretic or Pain Medication Within 14 Days After Vaccination in Participants Aged Between 18 to <65 Years
Systemic events included fever, vomiting, diarrhea, headache, fatigue, muscle and joint pain, and were recorded by using an e-diary. Use of antipyretic or pain medication was also collected by using an e-diary. Fever was graded as 37.5 to 38.4 degree C, 38.5 to 38.9 degree C, 39.0 to 40.0 degree C and >40.0 degree C. Vomiting was graded as mild (1-2 times in 24 hours), moderate (>2 times in 24 hours) and severe (required intravenous hydration). Diarrhea was graded as mild (2-3 loose stools in 24 hours), moderate (4-5 loose stools in 24 hours) and severe (>=6 loose stools in 24 hours). Headache, fatigue, muscle pain and joint pain were graded as mild (no interference with activity), moderate (some interference with activity) and severe (significant, prevented daily activity).
Measured: Day 1 up to Day 14
Percentage of Participants Reporting Adverse Events (AEs) and Serious Adverse Events (SAEs)
An AE was any untoward medical occurrence in a participant who received study vaccine without regard to possibility of causal relationship. An SAE is any untoward medical occurrence at any dose that results in death; is life-threatening (immediate risk of death); requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); results in congenital anomaly/birth defect.
Measured: signing of informed consent form (Day 1) up to Day 43
Secondary outcomes (4)
Serotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) at Pre-vaccination and 1 Month After Vaccination
Antibody-mediated serum OPA against each of the 13 pneumococcal serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) was measured centrally using a quantitative functional microcolony OPA (mcOPA) assay. Results were expressed as OPA titers. OPA titers were logarithmically transformed for analysis; geometric means calculated and expressed as geometric mean titers (GMTs). Two (2)-sided 95% CIs were constructed by back transformation of the CI for the mean of the logarithmically transformed assay results computed based on the Student t distribution. OPA titer was expressed as reciprocal of highest serum dilution.
Measured: Pre-vaccination and 1 month after vaccination
Geometric Mean Fold Rises (GMFRs) in Serotype-specific OPA Titers 1 Month After Vaccination
OPA GMFRs were calculated along with corresponding 2-sided 95% CIs for pneumococcal serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F. GMFRs were computed as the fold rise in titer value at 1 month after vaccination compared to baseline (pre-vaccination). The CIs for GMFRs were back transformations of a CI based on the Student t distribution for the mean difference of the log-transformed assay results before vaccination and 1 month after vaccination.
Measured: Pre-vaccination to 1 month after vaccination
Serotype-specific Immunoglobulin G (IgG) Geometric Mean Concentrations (GMCs) at Pre-vaccination and 1 Month After Vaccination
Pneumococcal IgG antibody against each of the 13 pneumococcal serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) was measured centrally using direct binding Luminex assay. Results were expressed as IgG concentrations. IgG concentrations were logarithmically transformed for analysis; geometric means calculated and expressed as GMCs. Two (2)-sided 95% CIs were constructed by back transformation of the CI for the mean of the logarithmically transformed assay results computed based on the Student t distribution.
Measured: Pre-vaccination and 1 month after vaccination
GMFRs in Serotype-specific IgG From Before Vaccination to 1 Month After Vaccination
IgG GMFRs were calculated along with corresponding 2-sided 95% CIs for pneumococcal serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F. GMFRs were computed as the fold rise in concentrations at 1 month after vaccination compared to baseline (pre-vaccination). The CIs for GMFRs were back transformations of a CI based on the Student t distribution for the mean difference of the log-transformed assay results before vaccination and 1 month after vaccination.
Measured: Pre- vaccination to 1 month after vaccination
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Jun 2018
- Study start12 Jul 2018
- Primary completion16 Nov 2018
- Study completion16 Nov 2018
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Pneumococcal InfectionsStudies 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
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 206 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
- NCT03571607
- Sponsor's protocol ID
- B1851172
- Other IDs
- 2018-003054-24, 2018
- Status last verified
- Feb 2020
- First submitted
- 20 Jun 2018
- Last updated
- 18 Feb 2020
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- 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
Yamazaki Y, Ikeda M, Imada T, Furuno K, Mizukami T, de Solom R, Shoji Y, Oe M, Aizawa M, Giardina PC, Schmoele-Thoma B, Scott DA. A phase 3, multicenter, single-arm, open-label study to assess the safety, tolerability, and immunogenicity of a single dose of 13-valent pneumococcal conjugate vaccine in Japanese participants aged 6-64 years who are considered to be at increased risk of pneumococcal disease and who are naive to pneumococcal vaccines. Vaccine. 2021 Oct 15;39(43):6414-6421. doi: 10.1016/j.vaccine.2021.08.106. Epub 2021 Sep 23.
PubMed 34563397
Study at a glance
From the registry record, last updated by the sponsor on 18 Feb 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A PHASE 3, MULTICENTER, SINGLE-ARM, OPEN-LABEL STUDY TO ASSESS THE SAFETY, TOLERABILITY, AND IMMUNOGENICITY OF A SINGLE DOSE OF 13-VALENT PNEUMOCOCCAL CONJUGATE VACCINE IN JAPANESE SUBJECTS AGED 6 TO 64 YEARS WHO ARE CONSIDERED TO BE AT INCREASED RISK OF PNEUMOCOCCAL DISEASE AND WHO ARE NAIVE TO PNEUMOCOCCAL VACCINES
- ClinicalTrials.gov ID
- NCT03571607
- Acronym / sponsor ID
- B1851172
- Conditions
- Pneumococcal Infections
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 206 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- 12 Jul 2018 (actual)
- Primary completion
- 16 Nov 2018 (actual)
- Study completion
- 16 Nov 2018 (actual)
- First posted
- 27 Jun 2018 (actual)
- Results
- Posted 10 Dec 2019
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study is to evaluate the safety, tolerability and immunogenicity of a single dose of 13-valent pneumococcal conjugate vaccine in Japanese subjects aged 6 to 64 years who are considered to be at increased risk of pneumococcal disease and who are naive to pneumococcal vaccines.
Study design
- Primary purpose
- Prevention
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| 13-valent pneumococcal conjugate vaccine | Experimental | Biological: 13-valent pneumococcal conjugate vaccine |
Who may qualify
- Ages
- 6 to 64 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (2 listed)
- Japanese males and females aged 6 to <65 years at enrollment.
- Subjects with an increased risk of pneumococcal disease determined by documented medical history, physical examination, and clinical judgment of the investigator.
Key exclusion criteria (6 listed)
- Previous vaccination with any licensed or investigational pneumococcal vaccine, or planned receipt during study participation.
- End-stage disease including but not limited to metastatic malignancy, severe chronic obstructive pulmonary disease (COPD) requiring supplemental oxygen, or end-stage renal disease with or without dialysis.
- Graft-versus-host disease (GVHD), history of solid organ transplant within 6 months before investigational product administration or history of HSCT, or potential for solid organ transplant or HSCT during study participation.
- Receipt of cytotoxic chemotherapy or blood products within 3 months before investigational product administration or anti-B-cell antibodies within 6 months before investigational product administration through completion of study participation.
- Any contraindication to vaccination or vaccine components, including previous anaphylactic reaction to any vaccine or vaccine-related components.
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 |
|---|---|---|
| 13-valent pneumococcal conjugate vaccineAlso: 13vPnCA single dose (0.5 mL) will be administered intramuscularly into the deltoid muscle at visit 1. | Biological | 13-valent pneumococcal conjugate vaccine |
Primary outcome
Percentage of Participants Reporting Pre-Specified Local Reactions Within 7 Days After Vaccination in Participants Aged Between 6 to <18 Years
Time frame: Day 1 up to Day 7
Local reactions were recorded using an electronic daily diary. Local reactions included redness, swelling and pain at injection site. Redness and swelling were graded as mild (0.5 to 2.0 centimeter [cm]), moderate (greater than [>] 2.0 to 7.0 cm) and severe (>7.0 cm) for participants aged 6 to <12 years, and as mild (2.5 to 5.0 cm), moderate (>5.0 to 10.0 cm) and, severe (>10.0 cm) for participants aged 12 to <18 years. Pain at injection site was graded as mild (did not interfere with activity), moderate (interfered with activity), and severe (prevented daily activity).
Percentage of Participants Reporting Pre-Specified Local Reactions Within 14 Days After Vaccination in Participants Aged Between 18 to <65 Years
Time frame: Day 1 up to Day 14
Local reactions were recorded using an electronic daily diary. Local reactions included redness, swelling and pain at injection site. Redness and swelling were graded as mild (2.5 to 5.0 cm), moderate (>5.0 to 10.0 cm) and, severe (>10.0 cm). Pain at injection site was graded as mild (did not interfere with activity), moderate (interfered with activity), and severe (prevented daily activity).
Percentage of Participants Reporting Systemic Events and Use of Antipyretic or Pain Medication Within 7 Days After Vaccination in Participants Aged Between 6 to <18 Years
Time frame: Day 1 up to Day 7
Systemic events included fever, vomiting, diarrhea, headache, fatigue, muscle and joint pain, and were recorded by using an e-diary. Use of antipyretic or pain medication was also collected by using an e-diary. Fever was graded as 37.5 to 38.4 degree Celsius (C), 38.5 to 38.9 degree C, 39.0 to 40.0 degree C and >40.0 degree C. Vomiting was graded as mild (1-2 times in 24 hours), moderate (>2 times in 24 hours) and severe (required intravenous hydration). Diarrhea was graded as mild (2-3 loose stools in 24 hours), moderate (4-5 loose stools in 24 hours) and severe (greater than or equals to [>=] 6 loose stools in 24 hours). Headache, fatigue, muscle pain and joint pain were graded as mild (no interference with activity), moderate (some interference with activity) and severe (significant, prevented daily activity).
Percentage of Participants Reporting Systemic Events and Use of Antipyretic or Pain Medication Within 14 Days After Vaccination in Participants Aged Between 18 to <65 Years
Time frame: Day 1 up to Day 14
Systemic events included fever, vomiting, diarrhea, headache, fatigue, muscle and joint pain, and were recorded by using an e-diary. Use of antipyretic or pain medication was also collected by using an e-diary. Fever was graded as 37.5 to 38.4 degree C, 38.5 to 38.9 degree C, 39.0 to 40.0 degree C and >40.0 degree C. Vomiting was graded as mild (1-2 times in 24 hours), moderate (>2 times in 24 hours) and severe (required intravenous hydration). Diarrhea was graded as mild (2-3 loose stools in 24 hours), moderate (4-5 loose stools in 24 hours) and severe (>=6 loose stools in 24 hours). Headache, fatigue, muscle pain and joint pain were graded as mild (no interference with activity), moderate (some interference with activity) and severe (significant, prevented daily activity).
Percentage of Participants Reporting Adverse Events (AEs) and Serious Adverse Events (SAEs)
Time frame: signing of informed consent form (Day 1) up to Day 43
An AE was any untoward medical occurrence in a participant who received study vaccine without regard to possibility of causal relationship. An SAE is any untoward medical occurrence at any dose that results in death; is life-threatening (immediate risk of death); requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); results in congenital anomaly/birth defect.
4 secondary outcomes
Serotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) at Pre-vaccination and 1 Month After Vaccination
Time frame: Pre-vaccination and 1 month after vaccination
Geometric Mean Fold Rises (GMFRs) in Serotype-specific OPA Titers 1 Month After Vaccination
Time frame: Pre-vaccination to 1 month after vaccination
Serotype-specific Immunoglobulin G (IgG) Geometric Mean Concentrations (GMCs) at Pre-vaccination and 1 Month After Vaccination
Time frame: Pre-vaccination and 1 month after vaccination
GMFRs in Serotype-specific IgG From Before Vaccination to 1 Month After Vaccination
Time frame: Pre- vaccination to 1 month after vaccination
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Feb 2020.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 34563397Yamazaki Y, Ikeda M, Imada T, Furuno K, Mizukami T, de Solom R, Shoji Y, Oe M, Aizawa M, Giardina PC, Schmoele-Thoma B, Scott DA. A phase 3, multicenter, single-arm, open-label study to assess the safety, tolerability, and immunogenicity of a single dose of 13-valent pneumococcal conjugate vaccine in Japanese participants aged 6-64 years who are considered to be at increased risk of pneumococcal disease and who are naive to pneumococcal vaccines. Vaccine. 2021 Oct 15;39(43):6414-6421. doi: 10.1016/j.vaccine.2021.08.106. Epub 2021 Sep 23.
- 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.
Related trials for Pneumococcal Infections
Active, not recruitingPhase 2
A Study to Learn About How a New Pneumococcal Vaccine Works in Infants
Pneumococcal Disease
RecruitingPhase 3
A Study to Learn About the Safety of an Expanded Pneumococcal Vaccine in Healthy Infants
Pneumococcal Disease
Active, not recruitingObservational study
A Study to Learn About the Safety of PREVENAR 20 Vaccine in Infants Aged Between Two to Six Months
Pneumococcal Disease
Active, not recruitingPhase 3
A Clinical Study to Evaluate the Safety, Tolerability, and Immunogenicity of VAX-31 With Influenza Vaccine in Adults ≥ 50 Years of Age
Pneumococcal Disease
RecruitingObservational study
National, Non Interventional Study of Invasive Pneumococcal Disease in Children and Newborns
Pneumococcal Infections, Pneumococcal Conjugate Vaccine
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
8 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing 13-valent pneumococcal conjugate vaccine in people with Pneumococcal Infections, run by Pfizer at 8 sites in Japan.
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 2 inclusion and 6 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: finished, as of the sponsor's last update on 18 Feb 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 8 sites in Japan. 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. 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?
Yes. Results are posted in the registry (first posted 10 Dec 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Percentage of Participants Reporting Pre-Specified Local Reactions Within 7 Days After Vaccination in Participants Aged Between 6 to <18 Years (time frame: Day 1 up to Day 7). The study lists 5 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 NCT03571607, which also lists 1 linked publication.
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 18 Feb 2020.