Coronavirus Disease (COVID-19)Phase 2/3NCT04575597
Efficacy and Safety of Molnupiravir (MK-4482) in Non-Hospitalized Adult Participants With COVID-19 (MK-4482-002)
A Phase 2/3 study testing Molnupiravir in people with Coronavirus Disease (COVID-19), run by Merck Sharp & Dohme LLC at 173 sites in 23 countries.
Trial summary
This study aims to evaluate the safety, tolerability and efficacy of molnupiravir (MK-4482) compared to placebo. The primary hypothesis is that molnupiravir is superior to placebo as assessed by the percentage of participants who are hospitalized and/or die through Day 29 Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Coronavirus Disease (COVID-19)
- What is being tested?
- Molnupiravir
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 1,735 participants
- Where
- 173 sitesin 23 countries
- Study dates
- 19 Oct 2020to 5 May 2022
- Phase
- Phase 2/3
- 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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Has documentation of laboratory confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection with sample collection ≤5 days prior to the day of randomization. PCR is the preferred method; however with evolving approaches to laboratory confirmation of SARS-CoV-2 infection, other molecular or antigen tests that detect viral ribonucleic acid (RNA) or protein are allowed if authorized for use in the country. Serological tests that detect host antibodies generated in response to recent or prior infection are not allowed.
- Had initial onset of signs/symptoms attributable to COVID-19 for ≤5 days prior to the day of randomization and at least 1 of the following sign/symptom attributable to COVID-19 on the day of randomization.
- Has mild or moderate COVID-19.
- Has at least 1 characteristic or underlying medical condition associated with an increased risk of severe illness from COVID-19.
- Males agree to the following during the intervention period and for at least 4 days after the last dose of study intervention: Either abstain from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long term and persistent basis) and agree to remain abstinent; or must agree to use contraception.
- Females are not pregnant or breastfeeding, and at least one of the following conditions applies: Is not a woman of child bearing potential (WOCBP); or is a WOCBP and using a contraceptive method that is highly effective (a low user dependency method OR a user dependent method in combination with barrier method), or be abstinent from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long-term and persistent basis) for at least 4 days after the last dose of study intervention; a WOCBP must have a negative highly sensitive pregnancy test (urine or serum test is required) within 24 hours before the first dose of study intervention.
Who cannot join
- Is currently hospitalized or is expected to need hospitalization for COVID-19 within 48 hours of randomization.
- Is on dialysis or has reduced estimated glomerular filtration rate (eGFR) <30 mL/min/1.73m^2 by the Modification of Diet in Renal Disease (MDRD) equation.
- Has any of the following conditions: human immunodeficiency virus (HIV) with a recent viral load >50 copies/mL (regardless of CD4 count) or an AIDS-defining illness in the past 6 months, participants with HIV may only be enrolled if on a stable antiretroviral therapy regimen; a neutrophilic granulocyte absolute count <500/mm^3.
- Has a history of hepatitis B virus (HBV) or hepatitis C virus (HCV) with cirrhosis, end-stage liver disease, hepatocellular carcinoma, aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) >3X upper limit of normal at screening.
- Has a platelet count <100,000/μL or received a platelet transfusion in the 5 days prior to randomization.
- Is taking or is anticipated to require any prohibited therapies.
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- Is unwilling to abstain from participating in another interventional clinical study through Day 29 with an investigational compound or device, including those for COVID-19 therapeutics.
- Has hypersensitivity or other contraindication to any of the components of the study interventions as determined by the investigator.
- Has any condition for which, in the opinion of the investigator, participation would not be in the best interest of the participant or that could prevent, limit, or confound the protocol-specified assessments including but not limited to: participants who are not expected to survive longer than 48 hours after randomization, or participants with a recent history of mechanical ventilation, or participants with conditions that could limit gastrointestinal absorption of capsule contents.
Trial locations and contacts
173 sites in 23 countries.
173 sites in 23 countries
United States32 sites
Javara Inc. ( Site 1869)
Albany, Georgia, 31707
University of New Mexico, Health Sciences Center ( Site 1819)
Albuquerque, New Mexico, 87131
JEM Research Institute ( Site 2508)
Atlantis, Florida, 33462
Saint Hope Foundation, Inc. ( Site 1830)
Bellaire, Texas, 77401
Loretto Hospital ( Site 1886)
Chicago, Illinois, 60644
IACT Health ( Site 1818)
Columbus, Georgia, 31904
Michigan Center of Medical Research ( Site 2500)
Farmington Hills, Michigan, 48334
Javara Inc. ( Site 1868)
Fayetteville, Georgia, 30214
Midway Immunology and Research Center ( Site 1837)
Ft. Pierce, Florida, 34982
Indago Research & Health Center, Inc ( Site 1809)
Hialeah, Florida, 33012
The Crofoot Research Center, Inc. ( Site 1812)
Houston, Texas, 77098
Advanced Research For Health Improvement LLC ( Site 1816)
Immokalee, Florida, 34142
Jadestone Clinical Research, LLC ( Site 2502)
Laurel, Maryland, 20708
Ruane Clinical Research Group, Inc. ( Site 2406)
Los Angeles, California, 90036
Men's Health Foundation ( Site 1820)
Los Angeles, California, 90069
Advanced Medical Research, LLC ( Site 1864)
Miami, Florida, 33174
Medical College Of Wisconsin ( Site 2510)
Milwaukee, Wisconsin, 53226
Advanced Research For Health Improvement LLC ( Site 1813)
Naples, Florida, 34102
Carbon Health Technologies Inc ( Site 2505)
North Hollywood, California, 91606
University of Nebraska Medical Center ( Site 2414)
Omaha, Nebraska, 68198
Bliss Healthcare Services ( Site 1847)
Orlando, Florida, 32806
Phoenix Medical Group ( Site 1822)
Peoria, Arizona, 85381
Amici Clinical Research LLC ( Site 2507)
Raritan, New Jersey, 08869
Clinical Research Partners, LLC. ( Site 2503)
Richmond, Virginia, 23226
UC Davis Medical Center ( Site 1833)
Sacramento, California, 95817
AXCES Research Group ( Site 2418)
Santa Fe, New Mexico, 87505
Swedish Medical Center First Hill ( Site 1807)
Seattle, Washington, 98104
Fred Hutchinson Cancer Center ( Site 1829)
Seattle, Washington, 98109
Multicare Health System ( Site 1811)
Spokane, Washington, 99204
Javara Inc. ( Site 1866)
Sugar Land, Texas, 77478
Multicare Health System ( Site 1814)
University Place, Washington, 98466
Emerson Clinical Research Institute ( Site 1828)
Washington D.C., District of Columbia, 20011
Russia15 sites
Republican Clinical Infectious Hospital n.a. A.F. Agafonov ( Site 1100)
Kazan', Tatarstan, Respublika, 420140
Central Scientific Research Institute of Epidemiology ( Site 1104)
Moscow, Moscow, 111123
Open Joint Stock Company Clinical and Diagnostic Center Euromedservice ( Site 1122)
Moscow, Moscow, 115419
Hadassah Medical LTD ( Site 1124)
Moscow, Moscow, 121205
Central Clinical Hospital with Polyclinic ( Site 1105)
Moscow, Moscow, 121359
City Hospital No.33 of Leninsky ( Site 1127)
Nizhny Novgorod, Nizhny Novgorod Oblast, 603076
City Polyclinic N44 ( Site 1130)
Saint Petersburg, Sankt-Peterburg, 192071
Strategic Medical System LLC ( Site 1114)
Saint Petersburg, Sankt-Peterburg, 192148
St.Petersburg Outpatient Clinic No. 109 ( Site 1119)
Saint Petersburg, Sankt-Peterburg, 192289
SPb SBHI City outpatient clinic 112 ( Site 1128)
Saint Petersburg, Sankt-Peterburg, 195427
Medical Research Institute LLC ( Site 1116)
Saint Petersburg, Sankt-Peterburg, 196084
Limited liability company "Scientific research center Eco-safety" ( Site 1117)
Saint Petersburg, Sankt-Peterburg, 196143
Smorodintsev Research Institute of Influenza ( Site 1129)
Saint Petersburg, Sankt-Peterburg, 197376
SPb SBHI City outpatient clinic 4 ( Site 1131)
Saint Petersburg, Sankt-Peterburg, 199406
Smolensk State Medical University ( Site 1110)
Smolensk, Smolensk Oblast, 214019
Ukraine13 sites
Ivano-Frankivsk Regional Clinical Infectious Diseases Hospital ( Site 1605)
Ivano-Frankivsk, Ivano-Frankivsk Oblast, 76007
CNE Central city clinical hospital of Ivano-Frankivsk city council ( Site 1604)
Ivano-Frankivsk, Ivano-Frankivsk Oblast, 76018
MNE Ivano-Frankivsk Regional Phthisiology-Pulmonology Center ( Site 1603)
Ivano-Frankivsk, Ivano-Frankivsk Oblast, 76018
Non profit municipal enterprise City hospital student of Kharkiv city council ( Site 1621)
Kharkiv, Kharkiv Oblast, 61002
PCNE Kharkiv City polyclinic 9 of the Kharkiv City Council ( Site 1627)
Kharkiv, Kharkiv Oblast, 61172
Limited Liability Company Medical center Healthy Happy ( Site 1625)
Kyiv, Kyivska Oblast, 01033
LLC "Adonis plus" ( Site 1619)
Kyiv, Kyivska Oblast, 02002
Kyiv railway clinical hospital 2 of Branch Health center ( Site 1602)
Kyiv, Kyivska Oblast, 03049
ARTEM. State Holding Company ( Site 1618)
Kyiv, Kyivska Oblast, 04050
Municipal Noncommercial Enterprise Lviv 4th City Clinical Hospital ( Site 1622)
Lviv, Lviv Oblast, 79011
MNCE -Odesa regional clinical hospital of Odesa regional council ( Site 1626)
Odesa, Odesa Oblast, 65025
Municipal Enterprise Poltava Regional Clinical Infectious Hospital ( Site 1614)
Poltava, Poltava Oblast, 36011
Medical Center Health Clinic ( Site 1623)
Vinnytsia, Vinnytsia Oblast, 21009
South Africa12 sites
IATROS International ( Site 1212)
Bloemfontein, Free State, 9300
TREAD Research ( Site 1211)
Cape Town, Western Cape, 7500
Desmond Tutu HIV Foundation Clinical Trial Unit ( Site 1219)
Cape Town, Western Cape, 7925
Enhancing Care Foundation-DICRS ( Site 1216)
Durban, KwaZulu-Natal, 4091
Right To Care Research - Esizayo ( Site 1229)
Johannesburg, Gauteng, 2087
Mzansi Ethical Research Centre ( Site 1225)
Mpumalanga, Gauteng, 1055
Be Part Yoluntu Centre ( Site 1218)
Paarl, Western Cape, 7626
Paarl Research Centre ( Site 1228)
Paarl, Western Cape, 7646
Jongaie Research ( Site 1223)
Pretoria West, Gauteng, 0183
Wits Baragwanath Clinical Trial Site ( Site 1214)
Soweto, Gauteng, 2013
Limpopo Clinical Research Initiative ( Site 1227)
Thabazimbi, Limpopo, 0380
Clinical Projects Research Centre ( Site 1215)
Worcester, Western Cape, 6850
Italy11 sites
Policlinico S. Orsola-Malpighi ( Site 0604)
Bologna, 40138
IRCCS Ospedale Policlinico San Martino ( Site 0603)
Genova, 16132
Fondazione IRCCS Ca' Granda-Ospedale Maggiore Policlinico ( Site 0606)
Milan, 20122
Ospedale San Raffaele ( Site 0605)
Milan, 20127
ASST Fatebenefratelli-Ospedale Sacco ( Site 0601)
Milan, 20157
Ospedale Niguarda ( Site 0608)
Milan, 20162
Asl Napoli 1 Centro ( Site 0610)
Naples, Napoli, 80145
AOU Policlinico Paolo Giaccone ( Site 0609)
Palermo, 90127
Istituto Nazionale per Le Malattie Infettive Lazzaro Spallanzani ( Site 0600)
Roma, 00149
Ospedale Amedeo di Savoia, Malattie Infettive ( Site 0602)
Torino, 10149
Azienda Sanitaria Universitaria Friuli Centrale -ASU FC ( Site 0607)
Udine, 33100
Mexico11 sites
Centro de Investigacion y Avances Medicos Especializados -CIAME ( Site 0810)
Cancún, Quintana Roo, 70500
ICARO Investigaciones en Medicina ( Site 0812)
Chihuahua City, 31000
Hospital Civil de Guadalajara Fray Antonio Alcalde ( Site 0800)
Guadalajara, Jalisco, 44280
Hospital Regional de Alta Especialidad del Bajio ( Site 0807)
León, Guanajuato, 37660
Köhler & Milstein Research S.A. de C.V. ( Site 0809)
Mérida, Yucatán, 97070
CAIMED México ( Site 0814)
Mexico City, Mexico City, 06760
Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran ( Site 0802)
Mexico City, Mexico City, 14080
Hospital Universitario Dr. Jose Eleuterio Gonzalez ( Site 0803)
Monterrey, Nuevo León, 64460
Oaxaca Site Management Organization S.C. ( Site 0811)
Oaxaca City, 68000
Clinical Research Institute S.C. ( Site 0813)
Tlalnepantla, 54055
Arké SMO S.A de C.V ( Site 0808)
Veracruz, 91910
Colombia10 sites
Centro Cientifico Asistencial Jose Luis Accini ( Site 0416)
Barranquilla, Atlántico, 080020
Clinica de la Costa Ltda. ( Site 0403)
Barranquilla, Atlántico, 080020
Caja de Compensación Familiar CAFAM. Sede Centro de Atención en Salud CAFAM Floresta ( Site 0406)
Bogota, Cundinamarca, 111211
Centro de Atencion e Investigacion Medica CAIMED ( Site 0413)
Bogota, Cundinamarca, 111611
Fundacion Santa Fe de Bogota ( Site 0412)
Bogotá, Bogota D.C., 110111
Fundacion Cardiovascular de Colombia ( Site 0402)
Bucaramanca, Santander Department, 680003
Fundacion Valle del Lili ( Site 0401)
Cali, Valle del Cauca Department, 760032
Centro Medico Imbanaco de Cali S.A ( Site 0415)
Cali, Valle del Cauca Department, 760042
Hospital Pablo Tobon Uribe ( Site 0405)
Medellín, Antioquia, 050034
Oncomedica S.A. ( Site 0407)
Montería, Departamento de Córdoba, 230002
Spain9 sites
Fundacion Hospital Alcorcon de Madrid ( Site 1314)
Alcorcón, Madrid, 28922
CAP Sardenya - Barcelona ( Site 1307)
Barcelona, 08025
Hospital Clinic ( Site 1304)
Barcelona, 08036
Hospital Universitari Germans Trias i Pujol ( Site 1303)
Barcelona, 08916
CAP Centelles ( Site 1308)
Centelles, Barcelona, 08540
Hospital General Universitario Gregorio Maranon ( Site 1302)
Madrid, Madrid, Comunidad de, 28007
Hospital Universitario Infanta Leonor ( Site 1310)
Madrid, 28031
Hospital Universitario Ramon y Cajal ( Site 1301)
Madrid, 28034
Hospital Universitario La Paz ( Site 1300)
Madrid, 28046
France8 sites
Groupe Hospitalier Pellegrin ( Site 0511)
Bordeaux, Gironde, 33000
Hopital Saint Joseph ( Site 0513)
Marseille, Bouches-du-Rhone, 13285
Hopital Bichat Claude Bernard ( Site 0503)
Paris, Ain, 75018
CHU Hopital Saint Antoine ( Site 0505)
Paris, 75012
Pitie Salpetriere University Hospital-Infectious Disease - Tropical Diseases ( Site 0504)
Paris, 75013
CHU de la Reunion - Groupe Hospitalier Sud ( Site 0514)
Saint-Pierre, La Reunion, 97448
C.H.U. de Toulouse Hopital Purpan ( Site 0501)
Toulouse, Midi-Pyrenees, 31059
Centre Hospitalier de Tourcoing ( Site 0502)
Tourcoing, Nord, 59208
Brazil7 sites
Santa Casa de Misericordia de Belo Horizonte ( Site 0150)
Belo Horizonte, Minas Gerais, 30150-221
Hospital Tacchini ( Site 0157)
Bento Gonçalves, Rio Grande do Sul, 95700-000
Chronos Pesquisa Clínica ( Site 0155)
Brasília, Federal District, 72145-424
Hospital de Clinicas da Universidade Federal do Parana ( Site 0154)
Curitiba, Paraná, 80060-900
FUNFARME Hospital de Base Centro Integrado de Pesquisa ( Site 0151)
São José do Rio Preto, São Paulo, 15090-000
Instituto de Infectologia Emilio Ribas ( Site 0153)
São Paulo, 01246-900
Centro de Pesquisa Clinica II - ICHC - FMUSP ( Site 0152)
São Paulo, 05403-010
Chile7 sites
Servicios Medicos Urumed ( Site 0307)
Rancagua, Lbtdr Gen Bernardo O Higgins, 2852424
Clinica Universidad de los Andes ( Site 0302)
Santiago, Region M. de Santiago, 2820945
Fundacion Arturo Lopez Perez ( Site 0305)
Santiago, Region M. de Santiago, 7500921
Espacio EME ( Site 0304)
Santiago, Region M. de Santiago, 7770086
Centro de Investigacion Clinica UC CICUC ( Site 0309)
Santiago, Region M. de Santiago, 8330034
Clinica Bicentenario Spa ( Site 0306)
Santiago, Region M. de Santiago, 9160000
Clinical Research Chile SpA ( Site 0308)
Valdivia, Los Ríos Region, 5110683
United Kingdom6 sites
Layton Medical Centre ( Site 1705)
Blackpool, FY3 7EN
Royal Free London NHS Foundation Trust ( Site 1700)
London, London, City of, NW3 2QG
King's College Hospital ( Site 1707)
London, London, City of, SE5 9RS
Newcastle upon Tyne Hospitals NHS Foundation Trust ( Site 1704)
Newcastle upon Tyne, NE1 4LP
Accellacare South London Quality Research Centre ( Site 1709)
Orpington, Kent, BR5 3QG
The Adam Practice ( Site 1708)
Poole, Dorset, BH15 2HX
Egypt5 sites
National Hepatology & Tropical Medicine Research Institute (NHTMRI) ( Site 3300)
Cairo, Cairo Governorate, 11562
Abbassia Chest Hospital ( Site 3340)
Cairo, Cairo Governorate, 11591
Abbassia Fever Hospital ( Site 3330)
Cairo, Cairo Governorate, 11591
Helwan Fever Hospital ( Site 3350)
Cairo, Cairo Governorate, 12899
National Center for allergies and chest ( Site 3320)
Giza, Giza Governorate, 12651
Canada4 sites
Hamilton Medical Research Group ( Site 0207)
Hamilton, Ontario, L8M1K7
Centre Hospitalier de l Universite de Montreal - CHUM ( Site 0200)
Montreal, Quebec, H2X 3E4
McGill University Health Centre ( Site 0204)
Montreal, Quebec, H4A 3J1
University Health Network - Toronto General Hospital ( Site 0201)
Toronto, Ontario, M5G 2N2
Germany4 sites
ZIBP-Zentrum fur Infektiologie Berlin Prenzlauer Berg GmbH ( Site 2301)
Berlin, 10439
Universitaetsklinikum Essen ( Site 2305)
Essen, North Rhine-Westphalia, 45147
Universitaetsklinikum Frankfurt ( Site 2302)
Frankfurt A Main, Hesse, 60590
ICH Study Center GmbH & Co.KG ( Site 2306)
Hamburg, 20146
Poland4 sites
Krakowskie Centrum Medyczne Sp. z o.o ( Site 1008)
Krakow, Lesser Poland Voivodeship, 31-501
NZOZ Centrum Medyczne Szpital Swietej Rodziny ( Site 1006)
Lodz, Łódź Voivodeship, 90-302
Centrum Medyczne Pulawska Sp. z o.o. ( Site 1007)
Piaseczno, Masovian Voivodeship, 05-500
Centrum Medyczne MEDYK Sp. z o.o. Sp.k. ( Site 1009)
Rzeszów, Podkarpackie Voivodeship, 35-326
Japan3 sites
Chiba Aoba Municipal Hospital ( Site 0702)
Chiba, 260-0852
Den-en-chofu family clinic ( Site 0701)
Tokyo, 145-0071
Center Hospital of the National Center for Global Health and Medicine ( Site 0700)
Tokyo, 162-8655
Sweden3 sites
Sahlgrenska Universitetssjukhuset Ostra ( Site 1401)
Gothenburg, Västra Götaland County, 416 85
Karolinska Universitetssjukhuset Solna ( Site 1400)
Stockholm, Stockholm County, 113 61
ClinSmart Sweden AB.Uppsala ( Site 1402)
Uppsala, Uppsala County, 752 37
Argentina2 sites
Instituto Medico de la Fundacion Estudios Clinicos ( Site 3401)
Rosario, Santa Fe Province, 2000
Clinica Independencia ( Site 3400)
Vicente López, Buenos Aires, B1605FRE
Guatemala2 sites
Clínica Médica Especializada en Pediatría e Infectología Pediátrica - Dr. Mario Melgar ( Site 2601)
Guatemala City, 01009
Clinica Privada Dr. Jose Francisco Flores Lopez ( Site 2600)
Guatemala City, 01015
Philippines2 sites
Lung Center of the Philippines ( Site 0902)
Quezon City, National Capital Region, 1100
Quirino Memorial Medical Center ( Site 0903)
Quezon City, National Capital Region, 1109
Taiwan2 sites
National Taiwan University Hospital ( Site 3100)
Taipei, 100
Taoyuan General Hospital ( Site 3101)
Taoyuan, 33004
Israel1 site
Hadassah Medical Center. Ein Kerem ( Site 2100)
Jerusalem, 9112001
About this study
Official title: A Phase 2/3, Randomized, Placebo-Controlled, Double-Blind Clinical Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of MK-4482 in Non-Hospitalized Adults With COVID-19.
This study aims to evaluate the safety, tolerability and efficacy of molnupiravir (MK-4482) compared to placebo. The primary hypothesis is that molnupiravir is superior to placebo as assessed by the percentage of participants who are hospitalized and/or die through Day 29
- Conditions
- Coronavirus Disease (COVID-19)
- Being tested
- Molnupiravir, Placebo
- Medical subject headings
- COVID-19
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
MolnupiravirDrug
Also called MK-4482
Molnupiravir administered orally in capsule form every 12 hours for 5 days (10 doses total)
PlaceboDrug
Placebo matching molnupiravir administered orally in capsule form every 12 hours for 5 days (10 doses total)
| Study group | Role | What they receive |
|---|---|---|
| Part 1: Molnupiravir 200 mg | Experimental | 200 mg molnupiravir administered orally every 12 hours for 5 days (10 doses total) Receives: Drug: Molnupiravir |
| Part 1: Molnupiravir 400 mg | Experimental | 400 mg molnupiravir administered orally every 12 hours for 5 days (10 doses total) Receives: Drug: Molnupiravir |
| Part 1: Molnupiravir 800 mg | Experimental | 800 mg molnupiravir administered orally every 12 hours for 5 days (10 doses total) Receives: Drug: Molnupiravir |
| Part 1: Placebo | Placebo comparator | Placebo matching molnupiravir administered orally every 12 hours for 5 days (10 doses total) Receives: Drug: Placebo |
| Part 2: Molnupiravir 800 mg | Experimental | 800 mg Molnupiravir (dose to be selected) administered orally every 12 hours for 5 days (10 doses total) Receives: Drug: Molnupiravir |
| Part 2: Placebo | Placebo comparator | Placebo matching molnupiravir administered orally every 12 hours for 5 days (10 doses total) Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of Participants Who Were Hospitalized and/or Died Through Day 29 (Primary Pre-specified Analysis)
The percentage of participants who were hospitalized and/or died through Day 29 is presented. Hospitalization (all cause) is defined as at least 24 hours of acute care in a hospital or similar acute care facility. Death was due to any cause. Any participants with an unknown survival status at Day 29 were treated as failure. The analysis in Part 2 was based on all participants enrolled by the pre-specified futility/early efficacy analysis and was used for demonstration of superiority to placebo for the primary efficacy outcome measure.
Measured: Up to 29 days
Number of Participants With an Adverse Event (AE)
The number of participants with at least 1 AE is presented. An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.
Measured: Up to 318 days
Number of Participants Who Discontinued Study Intervention Due to an AE
The number of participants who discontinued study intervention due to an AE is presented. An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.
Measured: Up to 5 days
Secondary outcomes (35)
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Cough
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Sore Throat
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Nasal Congestion
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Rhinorrhea
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Shortness of Breath or Difficulty Breathing
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Muscles or Body Aches
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Fatigue
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Feeling Hot or Feverish
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Chills
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Headache
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Nausea
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Vomiting
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Diarrhea
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Loss of Taste
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Loss of Smell
Time to sustained resolution or improvement of the targeted sign/symptom was defined as the number of days from randomization to the first of three consecutive days when resolution or improvement of the targeted sign/symptom was demonstrated and did not worsen by Day 29. The median number of days from randomization to the first day on or before study Day 29 for sustained resolution or improvement is presented. Per protocol, participants without the targeted sign/symptom reported at randomization were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Cough
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Sore Throat
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Nasal Congestion
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Rhinorrhea
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Shortness of Breath or Difficulty Breathing
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Muscle or Body Aches
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Fatigue
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Feeling Hot or Feverish
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Chills
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Headache
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Nausea
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Vomiting
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Diarrhea
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Loss of Taste
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Loss of Smell
Time to progression of the targeted sign/symptom was defined as the number of days from randomization to the first of two consecutive days when the targeted sign/symptom was worsened. The median number of days from randomization to the first day on or before study Day 29 for progression/worsening is presented. Per protocol, participants with symptoms reported at randomization as severe for the targeted sign/symptom were not included in the analysis.
Measured: Up to 29 days
Number of Participants With Responses on WHO 11-point Ordinal Outcomes Score on a Scale on Day 3
The World Health Organization (WHO) outcome scale is an 11-point ordinal score that categorizes clinical progression. Score ranges from 0 ("uninfected") to 10 ("dead") with higher score indicating clinical progression. The number of participants at each score category is presented.
Measured: Day 3
Number of Participants With Responses on WHO 11-point Ordinal Outcomes Score on a Scale on End of Treatment (EOT [Day 5])
The World Health Organization (WHO) outcome scale is an 11-point ordinal score that categorizes clinical progression. Score ranges from 0 ("uninfected") to 10 ("dead") with higher score indicating clinical progression. The number of participants at each score category is presented.
Measured: EOT (Day 5)
Number of Participants With Responses on WHO 11-point Ordinal Outcomes Score on a Scale on Day 10
The World Health Organization (WHO) outcome scale is an 11-point ordinal score that categorizes clinical progression. Score ranges from 0 ("uninfected") to 10 ("dead") with higher score indicating clinical progression. The number of participants at each score category is presented.
Measured: Day 10
Number of Participants With Responses on WHO 11-point Ordinal Outcomes Score on a Scale on Day 15
The World Health Organization (WHO) outcome scale is an 11-point ordinal score that categorizes clinical progression. Score ranges from 0 ("uninfected") to 10 ("dead") with higher score indicating clinical progression. The number of participants at each score category is presented.
Measured: Day 15
Number of Participants With Responses on WHO 11-point Ordinal Outcomes Score on a Scale on Day 29
The World Health Organization (WHO) outcome scale is an 11-point ordinal score that categorizes clinical progression. Score ranges from 0 ("uninfected") to 10 ("dead") with higher score indicating clinical progression. The number of participants at each score category is presented.
Measured: Day 29
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Oct 2020
- Study start19 Oct 2020
- Primary completion5 May 2022
- Study completion5 May 2022
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 (9)Papers the sponsor has linked to this study.
- Other trials for Coronavirus Disease (COVID-19)Studies of the same condition, open and under way.
- More trials run by Merck Sharp & Dohme LLCThe 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 2/3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 1,735 participants (actual)
Sponsor and investigators
- Lead sponsor
- Merck Sharp & Dohme LLC
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Medical Director, Study director, Merck Sharp & Dohme LLC
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04575597
- Sponsor's protocol ID
- 4482-002
- Other IDs
- MK-4482-002, PHRR201209-003186, jRCT2031210148, 2020-003368-24
- Status last verified
- May 2023
- First submitted
- 30 Sep 2020
- Last updated
- 28 Jun 2023
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf
Publications
Caraco Y, Crofoot GE, Moncada PA, Galustyan AN, Musungaie DB, Payne B, Kovalchuk E, Gonzalez A, Brown ML, Williams-Diaz A, Gao W, Strizki JM, Grobler J, Du J, Assaid CA, Paschke A, Butterton JR, Johnson MG, De Anda C. Phase 2/3 Trial of Molnupiravir for Treatment of Covid-19 in Nonhospitalized Adults. NEJM Evid. 2022 Feb;1(2):EVIDoa2100043. doi: 10.1056/EVIDoa2100043. Epub 2021 Dec 16.
PubMed 38319179Johnson MG, Strizki JM, Hilbert DW, Zhang Y, Carmelitano P, Brown ML, Wolf DJ, Paschke A, De Anda CS. Impact of baseline humoral immunity on treatment outcomes with molnupiravir in the MOVe-OUT randomized, controlled trial. Virology. 2026 Jan;613:110710. doi: 10.1016/j.virol.2025.110710. Epub 2025 Oct 9.
PubMed 41125063Caraco Y, Johnson MG, Chiarappa JA, Maas BM, Stone JA, Rizk ML, Vesnesky M, Strizki JM, Williams-Diaz A, Brown ML, Carmelitano P, Wan H, Pedley A, Chawla A, Wolf DJ, Grobler JA, Paschke A, De Anda C. Impact of differences between interim and post-interim analysis populations on outcomes of a group sequential trial: Example of the MOVe-OUT study. Clin Trials. 2025 Jun;22(3):312-324. doi: 10.1177/17407745251313925. Epub 2025 Mar 2.
PubMed 40025641Strizki JM, Grobler JA, Murgolo N, Fridman A, Johnson MG, Du J, Carmelitano P, Brown ML, Paschke A, De Anda C. Virologic Outcomes with Molnupiravir in Non-hospitalized Adult Patients with COVID-19 from the Randomized, Placebo-Controlled MOVe-OUT Trial. Infect Dis Ther. 2023 Dec;12(12):2725-2743. doi: 10.1007/s40121-023-00891-1. Epub 2023 Nov 23.
PubMed 37995070Guan Y, Puenpatom A, Johnson MG, Zhang Y, Zhao Y, Surber J, Weinberg A, Brotons C, Kozlov R, Lopez R, Coetzee K, Santiaguel J, Du J, Williams-Diaz A, Brown M, Paschke A, De Anda C, Norquist JM. Impact of Molnupiravir Treatment on Patient-Reported COVID-19 Symptoms in the Phase 3 MOVe-OUT Trial: A Randomized, Placebo-Controlled Trial. Clin Infect Dis. 2023 Nov 30;77(11):1521-1530. doi: 10.1093/cid/ciad409.
PubMed 37466374Chawla A, Birger R, Wan H, Cao Y, Maas BM, Paschke A, De Anda C, Rizk ML, Stone JA. Factors Influencing COVID-19 Risk: Insights From Molnupiravir Exposure-Response Modeling of Clinical Outcomes. Clin Pharmacol Ther. 2023 Jun;113(6):1337-1345. doi: 10.1002/cpt.2895. Epub 2023 Apr 27.
PubMed 37017631Johnson MG, Strizki JM, Brown ML, Wan H, Shamsuddin HH, Ramgopal M, Florescu DF, Delobel P, Khaertynova I, Flores JF, Fouche LF, Chang SC, Williams-Diaz A, Du J, Grobler JA, Paschke A, De Anda C. Molnupiravir for the treatment of COVID-19 in immunocompromised participants: efficacy, safety, and virology results from the phase 3 randomized, placebo-controlled MOVe-OUT trial. Infection. 2023 Oct;51(5):1273-1284. doi: 10.1007/s15010-022-01959-9. Epub 2023 Jan 17.
PubMed 36648627Johnson MG, Puenpatom A, Moncada PA, Burgess L, Duke ER, Ohmagari N, Wolf T, Bassetti M, Bhagani S, Ghosn J, Zhang Y, Wan H, Williams-Diaz A, Brown ML, Paschke A, De Anda C. Effect of Molnupiravir on Biomarkers, Respiratory Interventions, and Medical Services in COVID-19 : A Randomized, Placebo-Controlled Trial. Ann Intern Med. 2022 Aug;175(8):1126-1134. doi: 10.7326/M22-0729. Epub 2022 Jun 7.
PubMed 35667065Jayk Bernal A, Gomes da Silva MM, Musungaie DB, Kovalchuk E, Gonzalez A, Delos Reyes V, Martin-Quiros A, Caraco Y, Williams-Diaz A, Brown ML, Du J, Pedley A, Assaid C, Strizki J, Grobler JA, Shamsuddin HH, Tipping R, Wan H, Paschke A, Butterton JR, Johnson MG, De Anda C; MOVe-OUT Study Group. Molnupiravir for Oral Treatment of Covid-19 in Nonhospitalized Patients. N Engl J Med. 2022 Feb 10;386(6):509-520. doi: 10.1056/NEJMoa2116044. Epub 2021 Dec 16.
PubMed 34914868
Study at a glance
From the registry record, last updated by the sponsor on 28 Jun 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 2/3, Randomized, Placebo-Controlled, Double-Blind Clinical Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of MK-4482 in Non-Hospitalized Adults With COVID-19.
- ClinicalTrials.gov ID
- NCT04575597
- Acronym / sponsor ID
- 4482-002
- Conditions
- Coronavirus Disease (COVID-19)
- Phase
- Phase 2/3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 1,735 participants (actual)
- Lead sponsor
- Merck Sharp & Dohme LLCIndustry (pharma, biotech, devices)
- Study start
- 19 Oct 2020 (actual)
- Primary completion
- 5 May 2022 (actual)
- Study completion
- 5 May 2022 (actual)
- First posted
- 5 Oct 2020 (actual)
- Results
- Posted 28 Jun 2023
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aims to evaluate the safety, tolerability and efficacy of molnupiravir (MK-4482) compared to placebo. The primary hypothesis is that molnupiravir is superior to placebo as assessed by the percentage of participants who are hospitalized and/or die through Day 29
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 6
| Arm | Type | Receives |
|---|---|---|
| Part 1: Molnupiravir 200 mg | Experimental | Drug: Molnupiravir200 mg molnupiravir administered orally every 12 hours for 5 days (10 doses total) |
| Part 1: Molnupiravir 400 mg | Experimental | Drug: Molnupiravir400 mg molnupiravir administered orally every 12 hours for 5 days (10 doses total) |
| Part 1: Molnupiravir 800 mg | Experimental | Drug: Molnupiravir800 mg molnupiravir administered orally every 12 hours for 5 days (10 doses total) |
| Part 1: Placebo | Placebo comparator | Drug: PlaceboPlacebo matching molnupiravir administered orally every 12 hours for 5 days (10 doses total) |
| Part 2: Molnupiravir 800 mg | Experimental | Drug: Molnupiravir800 mg Molnupiravir (dose to be selected) administered orally every 12 hours for 5 days (10 doses total) |
| Part 2: Placebo | Placebo comparator | Drug: PlaceboPlacebo matching molnupiravir administered orally every 12 hours for 5 days (10 doses total) |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- Has documentation of laboratory confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection with sample collection ≤5 days prior to the day of randomization. PCR is the preferred method; however with evolving approaches to laboratory confirmation of SARS-CoV-2 infection, other molecular or antigen tests that detect viral ribonucleic acid (RNA) or protein are allowed if authorized for use in the country. Serological tests that detect host antibodies generated in response to recent or prior infection are not allowed.
- Had initial onset of signs/symptoms attributable to COVID-19 for ≤5 days prior to the day of randomization and at least 1 of the following sign/symptom attributable to COVID-19 on the day of randomization.
- Has mild or moderate COVID-19.
- Has at least 1 characteristic or underlying medical condition associated with an increased risk of severe illness from COVID-19.
- Males agree to the following during the intervention period and for at least 4 days after the last dose of study intervention: Either abstain from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long term and persistent basis) and agree to remain abstinent; or must agree to use contraception.
Key exclusion criteria (9 listed)
- Is currently hospitalized or is expected to need hospitalization for COVID-19 within 48 hours of randomization.
- Is on dialysis or has reduced estimated glomerular filtration rate (eGFR) <30 mL/min/1.73m^2 by the Modification of Diet in Renal Disease (MDRD) equation.
- Has any of the following conditions: human immunodeficiency virus (HIV) with a recent viral load >50 copies/mL (regardless of CD4 count) or an AIDS-defining illness in the past 6 months, participants with HIV may only be enrolled if on a stable antiretroviral therapy regimen; a neutrophilic granulocyte absolute count <500/mm^3.
- Has a history of hepatitis B virus (HBV) or hepatitis C virus (HCV) with cirrhosis, end-stage liver disease, hepatocellular carcinoma, aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) >3X upper limit of normal at screening.
- Has a platelet count <100,000/μL or received a platelet transfusion in the 5 days prior to randomization.
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 |
|---|---|---|
| MolnupiravirAlso: MK-4482Molnupiravir administered orally in capsule form every 12 hours for 5 days (10 doses total) | Drug | Part 1: Molnupiravir 200 mg, Part 1: Molnupiravir 400 mg, Part 1: Molnupiravir 800 mg, Part 2: Molnupiravir 800 mg |
| PlaceboPlacebo matching molnupiravir administered orally in capsule form every 12 hours for 5 days (10 doses total) | Drug | Part 1: Placebo, Part 2: Placebo |
Primary outcome
Percentage of Participants Who Were Hospitalized and/or Died Through Day 29 (Primary Pre-specified Analysis)
Time frame: Up to 29 days
The percentage of participants who were hospitalized and/or died through Day 29 is presented. Hospitalization (all cause) is defined as at least 24 hours of acute care in a hospital or similar acute care facility. Death was due to any cause. Any participants with an unknown survival status at Day 29 were treated as failure. The analysis in Part 2 was based on all participants enrolled by the pre-specified futility/early efficacy analysis and was used for demonstration of superiority to placebo for the primary efficacy outcome measure.
Number of Participants With an Adverse Event (AE)
Time frame: Up to 318 days
The number of participants with at least 1 AE is presented. An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.
Number of Participants Who Discontinued Study Intervention Due to an AE
Time frame: Up to 5 days
The number of participants who discontinued study intervention due to an AE is presented. An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.
35 secondary outcomes
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Cough
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Sore Throat
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Nasal Congestion
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Rhinorrhea
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Shortness of Breath or Difficulty Breathing
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Muscles or Body Aches
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Fatigue
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Feeling Hot or Feverish
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Chills
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Headache
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Nausea
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Vomiting
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Diarrhea
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Loss of Taste
Time frame: Up to 29 days
Time to Sustained Resolution or Improvement of Each Targeted COVID-19 Sign/Symptom - Loss of Smell
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Cough
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Sore Throat
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Nasal Congestion
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Rhinorrhea
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Shortness of Breath or Difficulty Breathing
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Muscle or Body Aches
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Fatigue
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Feeling Hot or Feverish
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Chills
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Headache
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Nausea
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Vomiting
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Diarrhea
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Loss of Taste
Time frame: Up to 29 days
Time to Progression of Each Targeted COVID-19 Sign/Symptom - Loss of Smell
Time frame: Up to 29 days
Number of Participants With Responses on WHO 11-point Ordinal Outcomes Score on a Scale on Day 3
Time frame: Day 3
Number of Participants With Responses on WHO 11-point Ordinal Outcomes Score on a Scale on End of Treatment (EOT [Day 5])
Time frame: EOT (Day 5)
Number of Participants With Responses on WHO 11-point Ordinal Outcomes Score on a Scale on Day 10
Time frame: Day 10
Number of Participants With Responses on WHO 11-point Ordinal Outcomes Score on a Scale on Day 15
Time frame: Day 15
Number of Participants With Responses on WHO 11-point Ordinal Outcomes Score on a Scale on Day 29
Time frame: Day 29
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Jun 2023.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Results publication: PubMed 38319179Caraco Y, Crofoot GE, Moncada PA, Galustyan AN, Musungaie DB, Payne B, Kovalchuk E, Gonzalez A, Brown ML, Williams-Diaz A, Gao W, Strizki JM, Grobler J, Du J, Assaid CA, Paschke A, Butterton JR, Johnson MG, De Anda C. Phase 2/3 Trial of Molnupiravir for Treatment of Covid-19 in Nonhospitalized Adults. NEJM Evid. 2022 Feb;1(2):EVIDoa2100043. doi: 10.1056/EVIDoa2100043. Epub 2021 Dec 16.
- Derived from this study: PubMed 41125063Johnson MG, Strizki JM, Hilbert DW, Zhang Y, Carmelitano P, Brown ML, Wolf DJ, Paschke A, De Anda CS. Impact of baseline humoral immunity on treatment outcomes with molnupiravir in the MOVe-OUT randomized, controlled trial. Virology. 2026 Jan;613:110710. doi: 10.1016/j.virol.2025.110710. Epub 2025 Oct 9.
- Derived from this study: PubMed 40025641Caraco Y, Johnson MG, Chiarappa JA, Maas BM, Stone JA, Rizk ML, Vesnesky M, Strizki JM, Williams-Diaz A, Brown ML, Carmelitano P, Wan H, Pedley A, Chawla A, Wolf DJ, Grobler JA, Paschke A, De Anda C. Impact of differences between interim and post-interim analysis populations on outcomes of a group sequential trial: Example of the MOVe-OUT study. Clin Trials. 2025 Jun;22(3):312-324. doi: 10.1177/17407745251313925. Epub 2025 Mar 2.
- Derived from this study: PubMed 37995070Strizki JM, Grobler JA, Murgolo N, Fridman A, Johnson MG, Du J, Carmelitano P, Brown ML, Paschke A, De Anda C. Virologic Outcomes with Molnupiravir in Non-hospitalized Adult Patients with COVID-19 from the Randomized, Placebo-Controlled MOVe-OUT Trial. Infect Dis Ther. 2023 Dec;12(12):2725-2743. doi: 10.1007/s40121-023-00891-1. Epub 2023 Nov 23.
- Derived from this study: PubMed 37466374Guan Y, Puenpatom A, Johnson MG, Zhang Y, Zhao Y, Surber J, Weinberg A, Brotons C, Kozlov R, Lopez R, Coetzee K, Santiaguel J, Du J, Williams-Diaz A, Brown M, Paschke A, De Anda C, Norquist JM. Impact of Molnupiravir Treatment on Patient-Reported COVID-19 Symptoms in the Phase 3 MOVe-OUT Trial: A Randomized, Placebo-Controlled Trial. Clin Infect Dis. 2023 Nov 30;77(11):1521-1530. doi: 10.1093/cid/ciad409.
- Derived from this study: PubMed 37017631Chawla A, Birger R, Wan H, Cao Y, Maas BM, Paschke A, De Anda C, Rizk ML, Stone JA. Factors Influencing COVID-19 Risk: Insights From Molnupiravir Exposure-Response Modeling of Clinical Outcomes. Clin Pharmacol Ther. 2023 Jun;113(6):1337-1345. doi: 10.1002/cpt.2895. Epub 2023 Apr 27.
- Derived from this study: PubMed 36648627Johnson MG, Strizki JM, Brown ML, Wan H, Shamsuddin HH, Ramgopal M, Florescu DF, Delobel P, Khaertynova I, Flores JF, Fouche LF, Chang SC, Williams-Diaz A, Du J, Grobler JA, Paschke A, De Anda C. Molnupiravir for the treatment of COVID-19 in immunocompromised participants: efficacy, safety, and virology results from the phase 3 randomized, placebo-controlled MOVe-OUT trial. Infection. 2023 Oct;51(5):1273-1284. doi: 10.1007/s15010-022-01959-9. Epub 2023 Jan 17.
- Derived from this study: PubMed 35667065Johnson MG, Puenpatom A, Moncada PA, Burgess L, Duke ER, Ohmagari N, Wolf T, Bassetti M, Bhagani S, Ghosn J, Zhang Y, Wan H, Williams-Diaz A, Brown ML, Paschke A, De Anda C. Effect of Molnupiravir on Biomarkers, Respiratory Interventions, and Medical Services in COVID-19 : A Randomized, Placebo-Controlled Trial. Ann Intern Med. 2022 Aug;175(8):1126-1134. doi: 10.7326/M22-0729. Epub 2022 Jun 7.
- Derived from this study: PubMed 34914868Jayk Bernal A, Gomes da Silva MM, Musungaie DB, Kovalchuk E, Gonzalez A, Delos Reyes V, Martin-Quiros A, Caraco Y, Williams-Diaz A, Brown ML, Du J, Pedley A, Assaid C, Strizki J, Grobler JA, Shamsuddin HH, Tipping R, Wan H, Paschke A, Butterton JR, Johnson MG, De Anda C; MOVe-OUT Study Group. Molnupiravir for Oral Treatment of Covid-19 in Nonhospitalized Patients. N Engl J Med. 2022 Feb 10;386(6):509-520. doi: 10.1056/NEJMoa2116044. Epub 2021 Dec 16.
- Individual participant dataSharing planned: Yes. http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf
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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.
Medical Director study director
Merck Sharp & Dohme LLC
173 sites in 23 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2/3 study testing Molnupiravir in people with Coronavirus Disease (COVID-19), run by Merck Sharp & Dohme LLC at 173 sites in 23 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 6 inclusion and 9 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 28 Jun 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 173 sites in United States, Russia, Ukraine, South Africa, Italy and 18 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 combined phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
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 28 Jun 2023). 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 Who Were Hospitalized and/or Died Through Day 29 (Primary Pre-specified Analysis) (time frame: Up to 29 days). The study lists 3 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 NCT04575597, which also lists 9 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 Jun 2023.