Study of Obeldesivir in Nonhospitalized Participants With COVID-19
OAKTREE
A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of GS-5245 for the Treatment of COVID-19 in Nonhospitalized Participants
2 other identifiers
interventional
2,011
2 countries
113
Brief Summary
The goal of this clinical study is to test if obeldesivir (GS-5245) is safe and effective for the treatment of coronavirus disease 2019 (COVID-19) in participants who have a standard risk of developing severe illness. This study will also measure how much obeldesivir gets into the blood and how long it takes for the body to get rid of it.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3 covid19
Started Feb 2023
Typical duration for phase_3 covid19
113 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 3, 2023
CompletedFirst Posted
Study publicly available on registry
February 8, 2023
CompletedStudy Start
First participant enrolled
February 8, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 28, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
January 23, 2024
CompletedResults Posted
Study results publicly available
December 24, 2024
CompletedDecember 24, 2024
December 1, 2024
10 months
February 3, 2023
October 28, 2024
December 13, 2024
Conditions
Outcome Measures
Primary Outcomes (4)
Time to Coronavirus Disease 2019 (COVID-19) Symptom Alleviation by Day 29
The time to alleviation of targeted COVID-19 symptoms by Day 29 for participants with symptom alleviation, was calculated as symptom alleviation date/time minus first dose date/time. For participants who completed Day 29 of the study or discontinued from the study before Day 29 without symptom alleviation (censored) and without inter-current events, time was calculated as last date/time on which symptom alleviation was assessed minus the first dose date/time or Day 28, whichever occurred first. Symptom alleviation was defined as, all targeted symptoms scored moderate or severe at baseline were scored as mild/none and all targeted symptoms scored mild/none at baseline were scored as none, for at least 48 consecutive hours. Targeted symptoms included: stuffy or runny nose, sore throat, shortness of breath, cough, low energy or tiredness, muscle or body aches, headache, chills or shivering and feeling hot or feverish. Kaplan-Meier (KM) estimates were used in outcome measure analysis.
First dose date up to Day 29
Percentage of Participants Experiencing Treatment-emergent Adverse Events (TEAEs)
TEAEs were defined as 1 or both of the following: * Any AEs with an onset date on or after the study drug start date and no later than 30 days after permanent discontinuation of study drug. * Any AEs leading to premature discontinuation of study drug. Percentages were rounded off.
First dose date up to Day 5 plus 30 days
Percentage of Participants Experiencing Laboratory Abnormalities
Treatment-emergent laboratory abnormalities were defined as values that increase at least 1 toxicity grade from baseline at any postbaseline time point, up to and including the date of last dose of study drug plus 30 days. Percentages were rounded off.
First dose date up to Day 5 plus 30 days
Percentage of Participants Experiencing Serious Adverse Events (SAEs) and Adverse Events (AEs) Leading to Study Drug Discontinuation
Percentages were rounded off.
First dose date up to Day 5 plus 30 days
Secondary Outcomes (12)
Time to COVID-19 Symptom Resolution by Day 29
Day 1 up to 29
Percentage of Participants With Moderate Relapse of COVID-19 Symptoms by Day 29
Up to Day 29
Percentage of Participants With COVID-19 Related Medically Attended Visits (MAVs) or All-cause Death by Day 29
Up to Day 29
Percentage of Participants With COVID-19 Related Hospitalization or All-cause Death by Day 29
Up to Day 29
Change From Baseline in Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Nasal Swab Viral Load at Day 5
Day 5
- +7 more secondary outcomes
Study Arms (2)
Obeldesivir
EXPERIMENTALParticipants will receive obeldesivir 350 mg twice daily for 5 days.
Obeldesivir Placebo
PLACEBO COMPARATORParticipants will receive obeldesivir placebo twice daily for 5 days.
Interventions
Eligibility Criteria
You may qualify if:
- Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection confirmed, ≤ 3 days before randomization, by polymerase chain reaction (PCR), rapid antigen test, or an approved alternative assay. Serologic tests will not be accepted.
- Willing and able to complete the coronavirus disease 19 (COVID-19) symptom questionnaire prior to first dose and daily throughout the study period.
- Initial onset of COVID-19 signs/symptoms ≤ 3 days before randomization with ≥ 2 of the following targeted symptoms, at moderate or higher severity, present at randomization.
- Stuffy or runny nose.
- Sore throat.
- Shortness of breath (difficulty breathing).
- Cough.
- Low energy or tiredness.
- Muscle or body aches.
- Headache.
- Chills or shivering.
- Feeling hot or feverish.
- Not currently hospitalized or requiring hospitalization.
You may not qualify if:
- Any risk factors for progression to severe disease.
- Planning to receive a direct acting antiviral or monoclonal antibody against SARS-CoV-2 for the treatment of COVID-19.
- Received any direct acting antiviral drug or monoclonal antibody against SARS-CoV-2 for the treatment of COVID-19 \< 28 days or \< 5 half-lives, whichever is longer, before randomization.
- Received any convalescent COVID-19 plasma or other antibody-based anti-SARS-CoV-2 prophylaxis at any time prior to study entry.
- Received an COVID-19 vaccine (including booster dose) \< 120 days before randomization.
- Self-reported COVID-19 diagnosis \< 120 days before randomization.
- Anticipated need for hospitalization \< 48 hours after randomization.
- New oxygen requirement \< 24 hours before randomization.
- Known influenza, or any other suspected or confirmed concurrent active systemic infection other than COVID-19 that may interfere with the evaluation of response to the study drug.
- Known history of chronic liver disease, limited to cirrhosis, nonalcoholic steatohepatitis, alcoholic liver disease, and autoimmune hepatitis.
- Undergoing dialysis, or known history of chronic kidney disease.
- Persistent symptoms from previous COVID-19 illness that may interfere with the evaluation of response to the study drug.
- Pregnant or breastfeeding.
- Unwilling to use protocol-mandated contraception.
- Any other factor, including inability to complete the patient-reported outcome (PRO) questionnaire for the primary endpoint, making the individual, in the opinion of the investigator, unsuitable to participate in the study.
- +1 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Gilead Scienceslead
Study Sites (113)
EmVenio Research
Alabaster, Alabama, 35007, United States
Institute for Liver Health dba Arizona Clinical Trials
Chandler, Arizona, 85224, United States
The Institute for Liver Health dba Arizona Liver Health
Tucson, Arizona, 85712, United States
Franco Felizarta, MD
Bakersfield, California, 93301, United States
Velocity Clinical Research, Banning (IP Delivery and Administering Location)
Banning, California, 92220, United States
Benchmark Research
Colton, California, 92324, United States
Ascada Research
Fullerton, California, 92835, United States
Velocity Clinical Research
La Mesa, California, 91942, United States
IMAX Clinical Trials, LLC
La Palma, California, 90623, United States
Om Research LLC
Lancaster, California, 93534, United States
L.A. Universal Research Center, INC.
Los Angeles, California, 90057, United States
Amicis Research Center
Northridge, California, 91324, United States
Valley Clinical Trials
Northridge, California, 91325, United States
Fomat Medical Research
Oxnard, California, 93030, United States
Paradigm Clinical Research
Redding, California, 96001, United States
Zuckerberg San Francisco General Hospital
San Francisco, California, 94110, United States
Clearview Medical Research, LLC
Santa Clarita, California, 91351, United States
EmVenio Research
Santa Monica, California, 90404, United States
Med Partners, Inc. dba Premiere Medical Center of Burbank, Inc.
Toluca Lake, California, 91602, United States
Georgetown University Medical Center
Washington D.C., District of Columbia, 20007, United States
Encore Medical Research of Boynton Beach LLC
Boynton Beach, Florida, 33436, United States
Palm Harbor Dermatology d/b/a TrueBlue Clinical Research
Brandon, Florida, 33511, United States
Innovative Research of West Florida, Inc
Clearwater, Florida, 33756, United States
Prestige Clinical Research Center Inc
Coral Gables, Florida, 33134, United States
Beautiful Minds Clinical Research Center
Cutler Bay, Florida, 33157, United States
Vital Care Research
Doral, Florida, 33122, United States
UHC Research, LLC
Doral, Florida, 33126, United States
Proactive Clinical Research,LLC
Fort Lauderdale, Florida, 33308, United States
Qway Research LLC
Hialeah, Florida, 33010, United States
AGA Clinical Trials
Hialeah, Florida, 33012, United States
Research in Miami
Hialeah, Florida, 33013, United States
3Sync, LLC
Hialeah, Florida, 33016, United States
Best Quality Research, Inc.
Hialeah, Florida, 33016, United States
Doral Medical Research
Hialeah, Florida, 33016, United States
Evolution Clinical Trials, INC
Hialeah Gardens, Florida, 33016, United States
Innovative Health
Hollywood, Florida, 33024, United States
Encore Medical Research, LLC
Hollywood, Florida, 33201, United States
Advance Clinical Research Group
Miami, Florida, 33122, United States
Med-Care Research, Corp
Miami, Florida, 33125, United States
Southern Clinical Research LLC
Miami, Florida, 33125, United States
LCC Medical Research Institute, LLC
Miami, Florida, 33126, United States
Universal Medical and Research Center, LLC.
Miami, Florida, 33126, United States
CCM Clinical Research Group, LLC
Miami, Florida, 33133, United States
Global Health Clinical Trials Corp
Miami, Florida, 33135, United States
Retreat Medical Research
Miami, Florida, 33135, United States
Verus Clinical Research, Corp
Miami, Florida, 33135, United States
Clinical Trial Services, Corp
Miami, Florida, 33144, United States
Continental Clinical Research
Miami, Florida, 33144, United States
Dynamic Medical Research, LLC
Miami, Florida, 33144, United States
Nuren Medical & Research Center
Miami, Florida, 33144, United States
Advanced Care and Clinical Trials, LLC
Miami, Florida, 33155, United States
Bioclinical Research Alliance Inc.
Miami, Florida, 33155, United States
Cordova Research Institute, Inc
Miami, Florida, 33155, United States
D&H National Research Centers, INC
Miami, Florida, 33155, United States
Florida International Medical Research
Miami, Florida, 33155, United States
Miami Clinical Research
Miami, Florida, 33155, United States
Allied Biomedical Research Institute
Miami, Florida, 33166, United States
Diverse Clinical Research, LLC
Miami, Florida, 33175, United States
P&S Research, LLC.
Miami, Florida, 33175, United States
ProLive Medical Research, Corp
Miami, Florida, 33175, United States
Entrust Clinical Research
Miami, Florida, 33176, United States
Links Clinical Trials LLC
Miami, Florida, 33176, United States
Reed Medical Research Corp
Miami, Florida, 33176, United States
MedBio Trials LLC
Miami, Florida, 33180, United States
Clinical Site Partners, LLC dba Flourish Research
Miami, Florida, 33186, United States
Phoenix Research Center, LLC
Miami, Florida, 33186, United States
Essential Clinical Research
Miami Lakes, Florida, 33014, United States
Palm Springs Community Health Center
Miami Lakes, Florida, 33014, United States
Angels Clinical Research Institute
Miami Lakes, Florida, 33016, United States
Quality Research of South Florida
Miami Lakes, Florida, 33016, United States
Oceanic Research Group
North Miami Beach, Florida, 33169, United States
Castillo Torres, MD PA
Palm Springs, Florida, 33406, United States
Family Clinical Trials, LLC
Pembroke Pines, Florida, 33026, United States
USPA Advance Concept Medical Research Group, LLC
South Miami, Florida, 33143, United States
Precision Clinical Research
Sunrise, Florida, 33351, United States
Angels Clinical Research Institute
Tampa, Florida, 33614, United States
Precision Research Center
Tampa, Florida, 33614, United States
Santos Research Center, CORP
Tampa, Florida, 33615, United States
Encore Medical Reseach of Weston, LLC
Weston, Florida, 33331, United States
Clinical Site Partners, LLC dba Flourish Research
Winter Park, Florida, 32789, United States
EmVenio Research
Atlanta, Georgia, 30315, United States
Agile Clinical Research Trials, LLC
Atlanta, Georgia, 30328, United States
Covenant Pulmonary Critical Care Research Institute
East Point, Georgia, 30344, United States
Velocity Clinical Research
Lafayette, Louisiana, 70508, United States
Tulane University School of Medicine
New Orleans, Louisiana, 70112, United States
Prime Global Research Inc
The Bronx, New York, 10456, United States
Shelby Clinical Research, LLC
Denver, North Carolina, 28037, United States
The Brody School of Medicine at East Carolina University
Greenville, North Carolina, 27834, United States
Carolina Research Center, Inc.
Shelby, North Carolina, 28150, United States
Frontier Clinical Research, LLC
Smithfield, Pennsylvania, 15478, United States
Clinovacare Medical Research Center
West Columbia, South Carolina, 29169, United States
St Hope Foundation, Inc.
Bellaire, Texas, 77401, United States
PanAmerican Clinical Research
Brownsville, Texas, 78520, United States
Premier Pulmonary Critical Care and Sleep Medicine
Denison, Texas, 75020, United States
EmVenio Research
Fort Worth, Texas, 26134, United States
HDH Research Inc.
Houston, Texas, 77022, United States
The Crofoot Research Center, INC.
Houston, Texas, 77098, United States
Milton Haber, MD
Laredo, Texas, 78041, United States
SMS Clinical Research, LLC
Mesquite, Texas, 75149, United States
Village Health Partners
Plano, Texas, 75024, United States
Village Health Partners
Plano, Texas, 75025, United States
North Texas Family Medicine
Plano, Texas, 75093, United States
Epic Medical Research, LLC
Red Oak, Texas, 75154, United States
STAAMP Research LLC
San Antonio, Texas, 78229, United States
Tranquil Clinical Research
Webster, Texas, 77598, United States
Bountiful Internal Medicine
Bountiful, Utah, 84010, United States
Velocity Clinical Research, Salt Lake City
West Jordan, Utah, 84088, United States
Frontier Clinical Research, LLC
Kingwood, West Virginia, 26537, United States
Kanagawa Himawari Clinic
Kawasaki-Shi, 216-0006, Japan
Medical corporation Shirayurikai Swing Nozaki Clinic
Musashino, 180-0022, Japan
Nishioka Hospital
Sapporo-Shi Toyohira-Ku, 062-0034, Japan
Sato Clinic
Shibuya-ku, 150-0013, Japan
Tokyo Shinagawa Hospital Social Medical Corporation Association Tokyokyojuno-kai
Shinagawa-Ku, 140-8522, Japan
Related Publications (2)
Rodriguez L, Hu Y, Li J, Han D, Peinovich N, Martinez C, Ho PY, Perry JK, Martin R, Ogbuagu O, Lichtman A, Hyland RH, Hedskog C. SARS-CoV-2 Resistance Analyses From the Phase 3 OAKTREE Study of Obeldesivir in Low-Risk Nonhospitalized Participants With COVID-19. Antiviral Res. 2025 Dec 29:106339. doi: 10.1016/j.antiviral.2025.106339. Online ahead of print.
PMID: 41475511DERIVEDOgbuagu O, Goldman JD, Gottlieb RL, Singh U, Shinkai M, Acloque G, Fusco DN, Gonzalez E, Kumar P, Luetkemeyer A, Lichtman A, Mozaffarian A, Koullias Y, Hyland RH, Llewellyn J, Osinusi A, Duff F, Humeniuk R, Caro L, Davies S, Rodriguez L, Hedskog C, Chen S, Etchevers K, Nadig P, Kohli A; OAKTREE Trial Investigators. Efficacy and safety of obeldesivir in low-risk, non-hospitalised patients with COVID-19 (OAKTREE): a phase 3, randomised, double-blind, placebo-controlled study. Lancet Infect Dis. 2025 Dec;25(12):1282-1292. doi: 10.1016/S1473-3099(25)00238-5. Epub 2025 Jul 14.
PMID: 40675167DERIVED
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Gilead Clinical Study Information Center
- Organization
- Gilead Sciences
Study Officials
- STUDY DIRECTOR
Gilead Study Director
Gilead Sciences
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Masking Details
- Participants, personnel directly involved in the conduct of study, and sponsor will not know the treatment participants received.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 3, 2023
First Posted
February 8, 2023
Study Start
February 8, 2023
Primary Completion
November 28, 2023
Study Completion
January 23, 2024
Last Updated
December 24, 2024
Results First Posted
December 24, 2024
Record last verified: 2024-12
Data Sharing
- IPD Sharing
- Will not share