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Clesrovimab (MK-1654) in Infants and Children at Increased Risk for Severe Respiratory Syncytial Virus (RSV) Disease (MK-1654-007)

Phase 3
Active, not recruiting
Conditions
RSV Infection
Interventions
Registration Number
NCT04938830
Lead Sponsor
Merck Sharp & Dohme LLC
Brief Summary

This study aims to evaluate the safety and tolerability of clesrovimab compared to palivizumab as assessed by the proportion of participants experiencing adverse events (AEs).

Detailed Description

Not available

Recruitment & Eligibility

Status
ACTIVE_NOT_RECRUITING
Sex
All
Target Recruitment
1003
Inclusion Criteria
  • Participants at increased risk for severe RSV infection recommended to receive palivizumab in accordance with national or local guidelines or professional society recommendations.
  • Is available to complete the follow-up period.
Exclusion Criteria
  • Requires mechanical ventilation at time of enrollment.
  • Has a life expectancy <6 months.
  • Has known hepatic or renal dysfunction, or chronic seizure disorder.
  • Is hospitalized at the time of randomization unless discharge is expected within 7 days after randomization.
  • Has severe immunodeficiency or is severely immunocompromised.
  • Has known hypersensitivity to any component of clesrovimab or palivizumab.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
ClesrovimabPlaceboParticipants will receive intramuscular (IM) injections of clesrovimab and placebo
PalivizumabPalivizumabParticipants will receive IM injections.
ClesrovimabClesrovimabParticipants will receive intramuscular (IM) injections of clesrovimab and placebo
Primary Outcome Measures
NameTimeMethod
Participants with solicited daily body temperature with fever in RSV Season 1Up to 5 days

Percentage of participants with solicited daily body temperature with fever in RSV Season 1

Participants with non-serious AEs in RSV Season 1Up to 42 days

Percentage of participants with non-serious AEs in RSV Season 1

Participants with serious AEs (SAEs) through the duration of participation in RSV Season 1Up to 365 days

Percentage of participants with serious AEs (SAEs) through the duration of participation in RSV Season 1

Participants with anaphylaxis/hypersensitivity AEs of special interest (AESI) in RSV Season 1Up to 42 days

Percentage of participants with anaphylaxis/hypersensitivity AESI in RSV Season 1

Participants with rash AESI in RSV Season 1Up to 42 days

Percentage of participants with rash AESI in RSV Season 1

Participants with solicited injection-site Adverse Events (AEs) in RSV Season 1Up to 5 days

Percentage of participants with solicited injection-site AEs in RSV Season 1

Participants with solicited systemic AEs in RSV Season 1Up to 5 days

Percentage of participants with solicited systemic AEs in RSV Season 1

Secondary Outcome Measures
NameTimeMethod
Participants with RSV-associated hospitalization in RSV Season 1Up to 150 days

Percentage of participants with RSV-associated hospitalization in RSV Season 1

Participants with anaphylaxis/hypersensitivity AESI in RSV Season 2From approximately 393 days up to 440 days

Percentage of participants with anaphylaxis/hypersensitivity AESI in RSV Season 2

Participants with RSV-associated medically attended lower respiratory infection (MALRI) in RSV Season 1Up to 150 days

Percentage of participants with RSV-associated medically attended lower respiratory infection (MALRI) in RSV Season 1

Participants with solicited systemic AEs in RSV Season 2From approximately 393 days up to 400 days

Percentage of participants with solicited systemic AEs in RSV Season 2

Participants with rash AESI in RSV Season 2From approximately 393 days up to 440 days

Percentage of participants with rash AESI in RSV Season 2

Participants with non-serious AEs in RSV Season 2From approximately 393 days up to 440 days

Percentage of participants with non-serious AEs in RSV Season 2

Concentration of clesrovimab in RSV Season 1Up to 240 days

Serum concentration of clesrovimab after dose of clesrovimab in RSV Season 1

Participants with SAEs in RSV Season 2From approximately 393 days up to 575 days

Percentage of participants with SAEs in RSV Season 2

Concentration of clesrovimab in RSV Season 2From approximately 393 days up to 550 days

Serum concentration of clesrovimab after dose of clesrovimab in RSV Season 2

Participants with solicited injection-site AEs in RSV Season 2From approximately 393 days up to 400 days

Percentage of participants with solicited injection-site AEs in RSV Season 2

Participants with solicited daily body temperature with fever in RSV Season 2From approximately 393 days up to 400 days

Percentage of participants with solicited daily body temperature with fever in RSV Season 2

Trial Locations

Locations (146)

Miller Children's & Women's Hospital Long Beach ( Site 0001)

🇺🇸

Long Beach, California, United States

Children's Hospital of Orange County ( Site 0047)

🇺🇸

Orange, California, United States

Children's Hospital Colorado ( Site 0011)

🇺🇸

Aurora, Colorado, United States

Children's National Medical Center ( Site 0020)

🇺🇸

Washington, District of Columbia, United States

Orlando Health - Arnold Palmer Hospital-Orlando Health-Arnold Palmer Hospital Pulmonary and Sleep M ( Site 0022)

🇺🇸

Orlando, Florida, United States

Nemours Children's Health, Lake Nona Medical City ( Site 0032)

🇺🇸

Orlando, Florida, United States

University of South Florida-Department of Pediatrics ( Site 0045)

🇺🇸

Tampa, Florida, United States

Morehouse School Of Medicine ( Site 0049)

🇺🇸

Atlanta, Georgia, United States

Clinical Research Prime ( Site 0046)

🇺🇸

Idaho Falls, Idaho, United States

University of Kentucky HealthCare - Turfland ( Site 0044)

🇺🇸

Lexington, Kentucky, United States

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Miller Children's & Women's Hospital Long Beach ( Site 0001)
🇺🇸Long Beach, California, United States

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