MedPath

Study of Obeldesivir to Treat Children With Respiratory Syncytial Virus (RSV) Infection

Phase 2
Recruiting
Conditions
RSV Infection
Interventions
Drug: Obeldesivir Placebo
Registration Number
NCT06784973
Lead Sponsor
Gilead Sciences
Brief Summary

The goal of this clinical study is to check if obeldesivir (ODV; GS-5245) is safe and well-tolerated by children with respiratory syncytial virus (RSV) infection. It will also look at how well ODV helps reduce the time it takes for children to feel better and for their RSV symptoms to improve.

The primary objectives of this study are: a) to evaluate the safety and tolerability of ODV in pediatric participants with RSV infection; b) To evaluate the efficacy of ODV on time to alleviation of targeted RSV symptoms in pediatric participants with RSV infection.

Detailed Description

Pediatric participants will be enrolled as follows:

* Cohort 1: Infants and children from 4 weeks postnatal age, weighing ≥ 1.5 kg to \< 40 kg

* Cohort 2: Neonates, either born at term or preterm, weighing ≥ 1.5 kg to \< 6 kg

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
130
Inclusion Criteria
  • Participants assigned male or female at birth, from birth to < 5 years of age who meet one of the following criteria, where permitted according to local law and approved nationally and by relevant institutional review board or independent ethics committee:

    • Cohort 1: Infants and children from 4 weeks postnatal age, weighing ≥ 1.5 kg to < 40 kg
    • Cohort 2: Neonates, either born at term or preterm, weighing ≥ 1.5 kg to < 6 kg
  • RSV infection diagnosis ≤ 3 days prior to randomization.

  • Negative test for influenza A/B, and SARS-CoV-2 infection ≤ 7 days prior to randomization.

  • Onset of RSV signs or symptoms ≤ 3 days prior to randomization.

  • Presence of at least 1 sign or symptom of RSV infection at screening and at randomization.

Key

Exclusion Criteria
  • Currently requiring or expected to require hospitalization for RSV infection within 48 hours after randomization.
  • Documented previous infection and/or hospitalization for RSV during the current respiratory virus season.
  • Diagnosed with acute concurrent active systemic infections requiring treatment with systemic antiviral, antibacterial, antifungal, or antimycobacterial therapy, or with any documented respiratory viral infection (other than RSV), ≤ 7 days prior to randomization.
  • History of asthma or recurrent wheezing.
  • Neuromuscular disease that affects swallowing.
  • Cystic fibrosis.
  • Participants who are immunocompromised.
  • Alanine aminotransferase ≥ 5 × upper limit of normal (ULN).
  • Abnormal renal function.
  • Concurrent or previous treatment with other agents with actual or possible direct antiviral activity against RSV, received within 28 days or within 5 half-lives, whichever is longer, prior to randomization.
  • Received palivizumab within 100 days, or nirsevimab within 1 year, or other RSV specific monoclonal antibody within 5 half-lives of the antibody, prior to randomization.
  • Participant whose mother received RSV vaccination during pregnancy and who is < 1 year old prior to randomization.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Obeldesivir PlaceboObeldesivir PlaceboParticipants will receive an age and weight appropriate ODV placebo dose based on their cohort/group assignment.
ObeldesivirObeldesivirParticipants will receive an age and weight appropriate ODV dose based on their cohort/group assignment.
Primary Outcome Measures
NameTimeMethod
Percentage of Participants Experiencing Treatment-emergent Adverse Events (TEAEs) Through Day 28First dose up to 28 days
Percentage of Participants Experiencing Grade 3 or 4 Treatment-emergent laboratory abnormalities by Day 28First dose up to 28 days
Time to Alleviation of Targeted RSV Symptoms by Day 28First dose up to 28 days
Secondary Outcome Measures
NameTimeMethod
Pharmacokinetic (PK) parameter AUCtau of ODV metabolite, GS-441524Day 1 to Day 5

AUCtau is defined as the area under the concentration versus time curve over the dosing interval.

PK parameter Cmax of ODV metabolite, GS-441524Day 1 to Day 5

Cmax is defined as the concentration at the end of the dosing interval.

PK parameter Ctrough of ODV metabolite, GS-441524Day 1 to Day 5

Ctrough is defined as the concentration at the endo of the dosing interval.

Change From Baseline in RSV Nasal Swab Viral Load at Day 5Baseline, Day 5
Time to Sustained Alleviation of Targeted RSV Symptoms by Day 28First dose up to 28 days
Time to Resolution of Targeted RSV Symptoms by Day 28First dose up to 28days
Assessment of Palatability and Acceptability Scores of Age-specific Formulation as Assessed by Caregiver at Days 1 and 5Day 1 to Day 5

Palatability and acceptability assessed by a numeric response between numbers 1-5. Higher scores indicate better palatability and acceptability.

Trial Locations

Locations (50)

Uchida child clinic

🇯🇵

Fukuoka, Japan

Shindo Children's Clinic

🇯🇵

Fukuoka, Japan

SEKI Children's CLINIC

🇯🇵

Fukuoka, Japan

Ryuseidai Children's Clinic

🇯🇵

Ibaraki, Japan

Isesaki Municipal Hospital

🇯🇵

Isesaki, Japan

Abe Child Clinic

🇯🇵

Kanagawa, Japan

Okada Kodomonomori Clinic

🇯🇵

Kasukabe, Japan

Yutaka Children Clinic

🇯🇵

Kobe, Japan

Children's of Alabama

🇺🇸

Birmingham, Alabama, United States

Cohen Children's Medical Center Pharmacy New Pavillion

🇺🇸

Phoenix, Arizona, United States

UCLA (Outpatient Clinic)

🇺🇸

Los Angeles, California, United States

Alliance Research Institute

🇺🇸

Lynwood, California, United States

Midway Medical Clinic

🇺🇸

Oneonta, Alabama, United States

Velocity Clinical Research, Phoenix

🇺🇸

Phoenix, Arizona, United States

Paradigm Clinical Research

🇺🇸

Modesto, California, United States

Paradigm Clinical Research Centers, LLC

🇺🇸

San Diego, California, United States

FOMAT - Jeffrey Kaplan MD Inc Pediatric Medicine

🇺🇸

Santa Maria, California, United States

Velocity Clinical Research, Washington DC

🇺🇸

Washington, District of Columbia, United States

Dolphin Medical Research

🇺🇸

Doral, Florida, United States

Nona Pediatric Center

🇺🇸

Orlando, Florida, United States

PAS Research

🇺🇸

Edinburg, Texas, United States

Velocity Clinical Research, Primary Pediatrics, Macon

🇺🇸

Macon, Georgia, United States

Rophe Adult and Pediatric Medicine/SKYCRNG

🇺🇸

Union City, Georgia, United States

Clinical Research Prime

🇺🇸

Idaho Falls, Idaho, United States

Velocity Clinical Research, Sioux City

🇺🇸

Sioux City, Iowa, United States

Velocity Clinical Research, Lafayette

🇺🇸

Lafayette, Louisiana, United States

Boeson Research

🇺🇸

Missoula, Montana, United States

Velocity Clinical Research - Norfolk

🇺🇸

Norfolk, Nebraska, United States

Velocity Clinical Research, Omaha

🇺🇸

Omaha, Nebraska, United States

Child Health Care Associates

🇺🇸

Syracuse, New York, United States

Epic Medical Research -Oklahoma

🇺🇸

Chickasha, Oklahoma, United States

Tekton Research, LLC

🇺🇸

Yukon, Oklahoma, United States

Helios Clinical Research

🇺🇸

Houston, Texas, United States

Epic Medical Research - DeSoto

🇺🇸

DeSoto, Texas, United States

Biopharma Informatic, LLC

🇺🇸

Houston, Texas, United States

Sunrise Pediatrics

🇺🇸

Houston, Texas, United States

Pioneer Research Solutions Inc.

🇺🇸

Houston, Texas, United States

Radiance Clinical Research

🇺🇸

Lampasas, Texas, United States

Pediatric Center

🇺🇸

Richmond, Texas, United States

Central Texas Medical Research, LLC

🇺🇸

San Antonio, Texas, United States

North Houston Internal Medicine and Pediatric Clinic

🇺🇸

Tomball, Texas, United States

Tanner Clinic

🇺🇸

Layton, Utah, United States

Boeson Research PVU

🇺🇸

Provo, Utah, United States

Yoshimura Child Clinic

🇯🇵

Akashi, Japan

Japan Community Healthcare Organization Kyushu Hospital

🇯🇵

Fkitakyushu, Japan

Kochi Health Sciences Center

🇯🇵

Kochi, Japan

Japan Community Healthcare Organization Chukyo Hospital

🇯🇵

Nagoya, Japan

Shimamura Memorial Hospital

🇯🇵

Nerima-ku, Japan

Shizuoka Welfare Hospital

🇯🇵

Shizuoka, Japan

Shizuoka City Shimizu Hospital

🇯🇵

Shizuoka, Japan

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