NCT05715528

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

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
2,011

participants targeted

Target at P75+ for phase_3 covid19

Timeline
Completed

Started Feb 2023

Typical duration for phase_3 covid19

Geographic Reach
2 countries

113 active sites

Status
completed

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

Completed
5 days until next milestone

First Posted

Study publicly available on registry

February 8, 2023

Completed
Same day until next milestone

Study Start

First participant enrolled

February 8, 2023

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 28, 2023

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 23, 2024

Completed
11 months until next milestone

Results Posted

Study results publicly available

December 24, 2024

Completed
Last Updated

December 24, 2024

Status Verified

December 1, 2024

Enrollment Period

10 months

First QC Date

February 3, 2023

Results QC Date

October 28, 2024

Last Update Submit

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

EXPERIMENTAL

Participants will receive obeldesivir 350 mg twice daily for 5 days.

Drug: Obeldesivir

Obeldesivir Placebo

PLACEBO COMPARATOR

Participants will receive obeldesivir placebo twice daily for 5 days.

Drug: Obeldesivir Placebo

Interventions

Tablet administered orally without regard to food.

Also known as: GS-5245
Obeldesivir

Tablet administered orally without regard to food.

Obeldesivir Placebo

Eligibility Criteria

Age12 Years - 64 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

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

Study Sites (113)

EmVenio Research

Alabaster, Alabama, 35007, United States

Location

Institute for Liver Health dba Arizona Clinical Trials

Chandler, Arizona, 85224, United States

Location

The Institute for Liver Health dba Arizona Liver Health

Tucson, Arizona, 85712, United States

Location

Franco Felizarta, MD

Bakersfield, California, 93301, United States

Location

Velocity Clinical Research, Banning (IP Delivery and Administering Location)

Banning, California, 92220, United States

Location

Benchmark Research

Colton, California, 92324, United States

Location

Ascada Research

Fullerton, California, 92835, United States

Location

Velocity Clinical Research

La Mesa, California, 91942, United States

Location

IMAX Clinical Trials, LLC

La Palma, California, 90623, United States

Location

Om Research LLC

Lancaster, California, 93534, United States

Location

L.A. Universal Research Center, INC.

Los Angeles, California, 90057, United States

Location

Amicis Research Center

Northridge, California, 91324, United States

Location

Valley Clinical Trials

Northridge, California, 91325, United States

Location

Fomat Medical Research

Oxnard, California, 93030, United States

Location

Paradigm Clinical Research

Redding, California, 96001, United States

Location

Zuckerberg San Francisco General Hospital

San Francisco, California, 94110, United States

Location

Clearview Medical Research, LLC

Santa Clarita, California, 91351, United States

Location

EmVenio Research

Santa Monica, California, 90404, United States

Location

Med Partners, Inc. dba Premiere Medical Center of Burbank, Inc.

Toluca Lake, California, 91602, United States

Location

Georgetown University Medical Center

Washington D.C., District of Columbia, 20007, United States

Location

Encore Medical Research of Boynton Beach LLC

Boynton Beach, Florida, 33436, United States

Location

Palm Harbor Dermatology d/b/a TrueBlue Clinical Research

Brandon, Florida, 33511, United States

Location

Innovative Research of West Florida, Inc

Clearwater, Florida, 33756, United States

Location

Prestige Clinical Research Center Inc

Coral Gables, Florida, 33134, United States

Location

Beautiful Minds Clinical Research Center

Cutler Bay, Florida, 33157, United States

Location

Vital Care Research

Doral, Florida, 33122, United States

Location

UHC Research, LLC

Doral, Florida, 33126, United States

Location

Proactive Clinical Research,LLC

Fort Lauderdale, Florida, 33308, United States

Location

Qway Research LLC

Hialeah, Florida, 33010, United States

Location

AGA Clinical Trials

Hialeah, Florida, 33012, United States

Location

Research in Miami

Hialeah, Florida, 33013, United States

Location

3Sync, LLC

Hialeah, Florida, 33016, United States

Location

Best Quality Research, Inc.

Hialeah, Florida, 33016, United States

Location

Doral Medical Research

Hialeah, Florida, 33016, United States

Location

Evolution Clinical Trials, INC

Hialeah Gardens, Florida, 33016, United States

Location

Innovative Health

Hollywood, Florida, 33024, United States

Location

Encore Medical Research, LLC

Hollywood, Florida, 33201, United States

Location

Advance Clinical Research Group

Miami, Florida, 33122, United States

Location

Med-Care Research, Corp

Miami, Florida, 33125, United States

Location

Southern Clinical Research LLC

Miami, Florida, 33125, United States

Location

LCC Medical Research Institute, LLC

Miami, Florida, 33126, United States

Location

Universal Medical and Research Center, LLC.

Miami, Florida, 33126, United States

Location

CCM Clinical Research Group, LLC

Miami, Florida, 33133, United States

Location

Global Health Clinical Trials Corp

Miami, Florida, 33135, United States

Location

Retreat Medical Research

Miami, Florida, 33135, United States

Location

Verus Clinical Research, Corp

Miami, Florida, 33135, United States

Location

Clinical Trial Services, Corp

Miami, Florida, 33144, United States

Location

Continental Clinical Research

Miami, Florida, 33144, United States

Location

Dynamic Medical Research, LLC

Miami, Florida, 33144, United States

Location

Nuren Medical & Research Center

Miami, Florida, 33144, United States

Location

Advanced Care and Clinical Trials, LLC

Miami, Florida, 33155, United States

Location

Bioclinical Research Alliance Inc.

Miami, Florida, 33155, United States

Location

Cordova Research Institute, Inc

Miami, Florida, 33155, United States

Location

D&H National Research Centers, INC

Miami, Florida, 33155, United States

Location

Florida International Medical Research

Miami, Florida, 33155, United States

Location

Miami Clinical Research

Miami, Florida, 33155, United States

Location

Allied Biomedical Research Institute

Miami, Florida, 33166, United States

Location

Diverse Clinical Research, LLC

Miami, Florida, 33175, United States

Location

P&S Research, LLC.

Miami, Florida, 33175, United States

Location

ProLive Medical Research, Corp

Miami, Florida, 33175, United States

Location

Entrust Clinical Research

Miami, Florida, 33176, United States

Location

Links Clinical Trials LLC

Miami, Florida, 33176, United States

Location

Reed Medical Research Corp

Miami, Florida, 33176, United States

Location

MedBio Trials LLC

Miami, Florida, 33180, United States

Location

Clinical Site Partners, LLC dba Flourish Research

Miami, Florida, 33186, United States

Location

Phoenix Research Center, LLC

Miami, Florida, 33186, United States

Location

Essential Clinical Research

Miami Lakes, Florida, 33014, United States

Location

Palm Springs Community Health Center

Miami Lakes, Florida, 33014, United States

Location

Angels Clinical Research Institute

Miami Lakes, Florida, 33016, United States

Location

Quality Research of South Florida

Miami Lakes, Florida, 33016, United States

Location

Oceanic Research Group

North Miami Beach, Florida, 33169, United States

Location

Castillo Torres, MD PA

Palm Springs, Florida, 33406, United States

Location

Family Clinical Trials, LLC

Pembroke Pines, Florida, 33026, United States

Location

USPA Advance Concept Medical Research Group, LLC

South Miami, Florida, 33143, United States

Location

Precision Clinical Research

Sunrise, Florida, 33351, United States

Location

Angels Clinical Research Institute

Tampa, Florida, 33614, United States

Location

Precision Research Center

Tampa, Florida, 33614, United States

Location

Santos Research Center, CORP

Tampa, Florida, 33615, United States

Location

Encore Medical Reseach of Weston, LLC

Weston, Florida, 33331, United States

Location

Clinical Site Partners, LLC dba Flourish Research

Winter Park, Florida, 32789, United States

Location

EmVenio Research

Atlanta, Georgia, 30315, United States

Location

Agile Clinical Research Trials, LLC

Atlanta, Georgia, 30328, United States

Location

Covenant Pulmonary Critical Care Research Institute

East Point, Georgia, 30344, United States

Location

Velocity Clinical Research

Lafayette, Louisiana, 70508, United States

Location

Tulane University School of Medicine

New Orleans, Louisiana, 70112, United States

Location

Prime Global Research Inc

The Bronx, New York, 10456, United States

Location

Shelby Clinical Research, LLC

Denver, North Carolina, 28037, United States

Location

The Brody School of Medicine at East Carolina University

Greenville, North Carolina, 27834, United States

Location

Carolina Research Center, Inc.

Shelby, North Carolina, 28150, United States

Location

Frontier Clinical Research, LLC

Smithfield, Pennsylvania, 15478, United States

Location

Clinovacare Medical Research Center

West Columbia, South Carolina, 29169, United States

Location

St Hope Foundation, Inc.

Bellaire, Texas, 77401, United States

Location

PanAmerican Clinical Research

Brownsville, Texas, 78520, United States

Location

Premier Pulmonary Critical Care and Sleep Medicine

Denison, Texas, 75020, United States

Location

EmVenio Research

Fort Worth, Texas, 26134, United States

Location

HDH Research Inc.

Houston, Texas, 77022, United States

Location

The Crofoot Research Center, INC.

Houston, Texas, 77098, United States

Location

Milton Haber, MD

Laredo, Texas, 78041, United States

Location

SMS Clinical Research, LLC

Mesquite, Texas, 75149, United States

Location

Village Health Partners

Plano, Texas, 75024, United States

Location

Village Health Partners

Plano, Texas, 75025, United States

Location

North Texas Family Medicine

Plano, Texas, 75093, United States

Location

Epic Medical Research, LLC

Red Oak, Texas, 75154, United States

Location

STAAMP Research LLC

San Antonio, Texas, 78229, United States

Location

Tranquil Clinical Research

Webster, Texas, 77598, United States

Location

Bountiful Internal Medicine

Bountiful, Utah, 84010, United States

Location

Velocity Clinical Research, Salt Lake City

West Jordan, Utah, 84088, United States

Location

Frontier Clinical Research, LLC

Kingwood, West Virginia, 26537, United States

Location

Kanagawa Himawari Clinic

Kawasaki-Shi, 216-0006, Japan

Location

Medical corporation Shirayurikai Swing Nozaki Clinic

Musashino, 180-0022, Japan

Location

Nishioka Hospital

Sapporo-Shi Toyohira-Ku, 062-0034, Japan

Location

Sato Clinic

Shibuya-ku, 150-0013, Japan

Location

Tokyo Shinagawa Hospital Social Medical Corporation Association Tokyokyojuno-kai

Shinagawa-Ku, 140-8522, Japan

Location

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.

  • Ogbuagu 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.

Related Links

MeSH Terms

Conditions

COVID-19

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Results Point of Contact

Title
Gilead Clinical Study Information Center
Organization
Gilead Sciences

Study Officials

  • Gilead Study Director

    Gilead Sciences

    STUDY DIRECTOR

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

Locations