Study Stopped
The study was withdrawn after the Marburg outbreak in Rwanda was declared over, prior to enrollment of any participants.
Study of Obeldesivir as Postexposure Prophylaxis for Filovirus Diseases Virus Disease
A Phase 2, Single-Arm Study of Obeldesivir for Postexposure Prophylaxis of Filovirus Diseases
1 other identifier
interventional
N/A
0 countries
N/A
Brief Summary
The goal of this clinical study is to learn more about the study drug, obeldesivir (ODV), and how safe and effective it is preventing Filovirus disease in participants with known or suspected exposure to Filovirus disease. The primary objective is to evaluate the safety and tolerability of ODV for Ebola virus (EBOV), Sudan virus (SUDV), and MARV postexposure prophylaxis (PEP).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
Started Dec 2025
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Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 7, 2024
CompletedFirst Posted
Study publicly available on registry
November 12, 2024
CompletedStudy Start
First participant enrolled
December 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2025
CompletedMarch 20, 2026
March 1, 2026
Same day
November 7, 2024
March 18, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Percentage of Participants Experiencing Serious Adverse Events (SAEs)
First dose date up to 29 Days
Secondary Outcomes (3)
Proportion of Participants with Symptomatic Filovirus Disease by Day 29
Up to 29 Days
Proportion of Participants with Polymerase Chain Reaction (PCR)-Confirmed Filovirus Disease Infections by Day 29
Up to 29 Days
Proportion of Participants with All-Cause Death by Day 29
Up to 29 Days
Study Arms (1)
Obeldesivir (ODV)
EXPERIMENTALParticipants will receive ODV for 10 days
Interventions
Eligibility Criteria
You may qualify if:
- Able to understand and give written informed consent and comply with treatment and follow up.
- Individuals who are of childbearing potential and engage in heterosexual intercourse must agree to use protocol-specified method(s) of contraception
- Known or suspected high-risk exposure to Ebola virus (EBOV), Sudan virus (SUDV), or Marburg virus (MARV) within 21 days of Day 1. High-risk exposure may include the following:
- Direct contact with bodily fluids from a confirmed case.
- Needle stick injury with a needle potentially contaminated with virus.
- Prolonged exposure to an individual with EBOV, SUDV, or MARV infection or disease without (adequate) personal protective equipment.
You may not qualify if:
- Individuals with plans to breastfeed during the study period and 21 days following the last dose of study intervention. World Health Organization guidance on breastfeeding should be followed.
- Known hypersensitivity to the study intervention, its metabolites, or formulation excipient.
- Known EBOV, SUDV, or MARV reverse transcriptase-polymerase chain reaction (RT-PCR) positivity or symptomatic filovirus disease as attributed by the investigator.
- Known moderate or severe renal impairment or known estimated glomerular filtration rate (eGFR) \< 60 mL/min/1.73 m\^2.
- Decompensated cirrhosis (Child-Pugh Class C), acute liver injury/failure (eg, new onset \[\< 2 weeks\] of easy bruising, jaundice, ascites, hepatic encephalopathy, asterixis), and/or known alanine aminotransferase ≥5 × upper limit of normal.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Gilead Scienceslead
Related Links
Study Officials
- STUDY DIRECTOR
Gilead Study Director
Gilead Sciences
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NA
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 7, 2024
First Posted
November 12, 2024
Study Start
December 1, 2025
Primary Completion
December 1, 2025
Study Completion
December 1, 2025
Last Updated
March 20, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share