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

September 8, 2026 updated by: AstraZeneca

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

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.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
21

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • India
      • Hyderabad, India, 500084
        • Research Site
      • Jhānsi, India, 284128
        • Research Site
      • Kanpur, India, 208011
        • Research Site
      • Kolkata, India, 700073
        • Research Site
      • Mysore, India, 570001
        • Research Site
      • Nagpur, India, 440012
        • Research Site
      • Nagpur, India, 441108
        • Research Site
      • Pune, India, 411006
        • Research Site
      • Vidyanagar, Hubballi, India, 580022
        • Research Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

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

    1. Infants born ≤ 35 wGA and are < 6 months of age at enrolment.
    2. Children < 24 months of age at enrolment and requiring treatment for BPD within the last 6 months.
    3. Children < 24 months of age and with haemodynamically significant CHD.
  2. 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:

  1. Hospitalisation at the time of enrolment, unless the discharge is expected within 30 days of the time of enrolment
  2. Required mechanical ventilation (including continuous positive airway pressure) or other mechanical respiratory or cardiac support at the time of enrolment.
  3. Anticipated cardiac surgery within 2 weeks after enrolment.
  4. Anticipated survival of < 6 months after enrolment in the trial.
  5. Active LRTD, including RSV infection at the time of enrolment and/or study intervention administration.
  6. Any fever (≥ 38.0°C) or acute illness within 7 days prior to investigational product administration.
  7. Known history of evolving or unstable neurologic disorder.
  8. 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.
  9. Known allergy, including to immunoglobulin products, or history of allergic reaction.
  10. Receipt of palivizumab or other RSV monoclonal antibodies or any RSV vaccine, including maternal RSV vaccination.
  11. Receipt of any monoclonal or polyclonal antibody (for example, hepatitis B immune globulin, intravenous immunoglobulin) or anticipated use during the study.
  12. Concurrent enrolment in another interventional study.
  13. 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.
  14. 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.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Study Arm
All the eligible participants will receive palivizumab 15 mg/kg on Days 1, 31, 61, 91, and 121.
Drug: Palivizumab 15 mg/kg
Single-dose liquid solution vials, 50 mg/0.5 mL, IM injection

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
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
1) To determine percentage of participants with AEs and SAEs. 2) To assess nature, incidence, and severity of all AEs including unexpected adverse drug reactions 2)To determine percentage of participants with AEs that lead to study intervention discontinuation.
screening to day 151

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
AstraZeneca

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 10, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 28, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 28, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 10, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 24, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 28, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 9, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 8, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • D4800L00014
  • 2025 (U.S. NIH Grant/Contract: Faculty of Social Sciences Scientific Grant at the University of Gdańsk)
  • 2025-000041-13 (EudraCT Number)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings