Study of Palivizumab in Children With High Risk of Severe Respiratory Syncytial Virus (RSV) Disease

Official title

A Multicentre, Interventional, Phase IV, Open-label, Study to Evaluate the Safety of Palivizumab in Children Less Than 24 Months of Age With High Risk of Severe Respiratory Syncytial Virus (RSV) Disease

Overview

This is a Phase IV, prospective, open-label, multicentre study to evaluate the safety of palivizumab IM injection for the prevention of severe LRTD in Indian infants and children who are at high-risk of RSV disease. All enrolled participants will receive palivizumab 15 mg/kg IM injection once a month for up to 5 injections during the study. Children who undergo cardiac surgery with cardiopulmonary bypass during the study should receive an additional dose of study intervention immediately after surgery, when medically stable for IM injection as determined by the physician. Prior to each study intervention administration, all participants will undergo safety assessments. A follow-up visit will be performed telephonically with the parent(s) or legal guardian(s) of all participants 30 days after their last injection of palivizumab.

Interventions

• Drug Palivizumab 15 mg/kg
  Single-dose liquid solution vials, 50 mg/0.5 mL, IM injection

Primary outcome measures

• To assess the safety of palivizumab prophylaxis when administered to preterm infants (≤ 35 wGA), children with BPD (< 24 months) and/or children with haemodynamically significant CHD (< 24 months). [Time frame: screening to day 151]

Eligibility criteria

Inclusion criteria

• Participants at risk of severe RSV disease defined as fulfilling at least one of the following:

• Infants born ≤ 35 wGA and are < 6 months of age at enrolment.
• Children < 24 months of age at enrolment and requiring treatment for BPD within the last 6 months.
• Children < 24 months of age and with haemodynamically significant CHD.
• Written informed consent obtained from the participant's parent(s)/legal guardian and the participant's parent(s)/legal guardian is able to understand and comply with the requirements of the protocol including follow-up visits as judged by the investigator.

Exclusion criteria

Participants are excluded from the study if any of the following criteria apply:

• Hospitalisation at the time of enrolment, unless the discharge is expected within 30 days of the time of enrolment
• Required mechanical ventilation (including continuous positive airway pressure) or other mechanical respiratory or cardiac support at the time of enrolment.
• Anticipated cardiac surgery within 2 weeks after enrolment.
• Anticipated survival of < 6 months after enrolment in the trial.
• Active LRTD, including RSV infection at the time of enrolment and/or study intervention administration.
• Any fever (≥ 38.0°C) or acute illness within 7 days prior to investigational product administration.
• Known history of evolving or unstable neurologic disorder.
• Known history of unstable cardiac or respiratory status, including cardiac defects so severe that survival is not expected or for which cardiac transplantation is planned or anticipated.
• Known allergy, including to immunoglobulin products, or history of allergic reaction.
• Receipt of palivizumab or other RSV monoclonal antibodies or any RSV vaccine, including maternal RSV vaccination.
• Receipt of any monoclonal or polyclonal antibody (for example, hepatitis B immune globulin, intravenous immunoglobulin) or anticipated use during the study.
• Concurrent enrolment in another interventional study.
• Children of employees of the sponsor, clinical study site, or any other individuals involved with the conduct of the study, or immediate family members of such individuals.
• Judgment by the investigator that the participant should not participate in the study if the participant or the participant's parent/legal guardian is unlikely to comply with study procedures, restrictions, and requirements.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation

N/A

Model

Single group

Masking

Open label

Primary purpose

Prevention

Study locations

India · 6 centers

• Research Site — Hyderabad
• Research Site — Kanpur
• Research Site — Kolkata
• Research Site — Mysore
• Research Site — Pune
• Research Site — Vidyanagar, Hubballi

Identifiers

NCT: NCT06851806 · D4800L00014 · 2025-000041-13

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗