Clinical trial Recruiting at 5 sites Phase 4 Interventional Ages 6 Weeks to 30 Weeks

Safety of giving an RSV preventive antibody with routine childhood vaccines

Official title: Safety of Simultaneous Administration of Respiratory Syncytial Virus (RSV) Preventive Monoclonal Antibody With Routine Childhood Immunizations in Infants

Run by Duke University · NCT07158814 · Data updated 2026-11-12

This trial will test whether giving an RSV preventive antibody at the same visit as routine childhood vaccines is as safe for infants 6 to <30 weeks old as giving the antibody at a separate visit.

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Quick facts

PhasePhase 4
Study typeInterventional
Ages6 Weeks to 30 Weeks
SexAll
Enrollment524 (estimated)
SponsorDuke University
Academic / other
Drugs / interventionschemotherapy, radiation, prednisone
Locations6 sites (Oakland, California and 5 other locations)
StatusRecruiting
StartedOctober 2, 2025
Main results expectedFebruary 2027
Study endsApril 2027
Registry record updatedMarch 16, 2026
Trial IDNCT07158814 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Infants aged 6 weeks to under 30 weeks who are eligible for the RSV monoclonal antibody and at least one routine childhood vaccine, whose parent or legal guardian can consent, read English or Spanish, and attend follow-up, are ideal candidates.

Probably not a fit

Infants outside the 6 to <30-week age range, those not eligible for the RSV antibody or routine vaccines, or families unable to comply with consent and follow-up requirements are unlikely to benefit from participation.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a prospective, randomized, open-label trial comparing simultaneous administration of an RSV preventive monoclonal antibody with routine childhood vaccines at one visit versus giving the antibody and vaccines at separate visits. Parents or guardians will record fever and other solicited local and systemic adverse events on the day of immunization and for the next six days after each vaccination visit using a web-based system or paper memory aid. Serious adverse events and adverse events of special interest will be collected throughout the study period. The trial is conducted at multiple U.S. clinical sites and enrolls infants aged 6 weeks to under 30 weeks who are eligible for the RSV antibody and routine vaccines.

Why it matters

Potential benefit: If successful, the results could allow infants to receive the RSV antibody at the same visit as routine vaccines without increased short-term side effects, reducing clinic visits and scheduling burden for families.

How similar studies have gone: Previous clinical and postmarketing work has established safety profiles for RSV monoclonal antibodies in infants, but randomized comparisons of simultaneous versus sequential administration with routine vaccines are limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Infants ≥ 6 weeks to \<30 weeks of age at the time of enrollment
* Infants eligible for RSV monoclonal antibody and at least one routine childhood vaccine in outpatient clinic
* The parent/legal guardian must be willing and capable of providing permission for their infant to participate through the written informed consent process
* Parent/legal guardian must be able to read and comprehend English or Spanish
* The parent/legal guardian must be available for follow-up study contact by telephone from enrollment to completion of the study period
* The parent/legal guardian must agree to sign a medical record release for the infant so that study personnel may obtain medical information about the infant's health (if needed)
* The parent/legal guardian must be willing to delay their child's receipt of RSV monoclonal antibody up to two weeks from the scheduled date and to return for a second visit to receive the deferred RSV monoclonal antibody

Exclusion Criteria:

* Known contraindication or precaution to RSV monoclonal antibody or other routine vaccines being administered
* Received any vaccine within 14 days prior to enrollment and the first immunization day in this study
* Known previous receipt of RSV monoclonal antibody
* Received any experimental/investigational agent (vaccine, drug, biologic, device, blood product, or medication) within 28 days prior to immunization in this study or expects to receive an experimental/investigational agent within the follow-up time period (8 days after the second immunization in this study)
* A moderate to severe acute illness and/or a reported temporal temperature greater than or equal to 100.4°F (38.0°C) within 48 hours prior to enrollment or a temporal temperature (measured by temporal artery thermometer) greater than or equal to 100.4°F (38.0°C) at the time of enrollment. (This may result in a temporary delay of immunization)
* Receipt of an antipyretic medication (acetaminophen or ibuprofen) within 48 hours prior to enrollment (This may result in a temporary delay of immunization)
* Planned receipt of a prophylactic antipyretic medication on the day of and/or days following immunization. This exclusion does not apply if the parent/legal guardian indicates they might administer antipyretics after immunization in response to fever or pain
* Has any condition that would, in the opinion of the site investigator, place the participant at an unacceptable risk of injury or render the participant unable to meet the requirements of the protocol
* Anyone who is a first-degree relative of any research study personnel
* The infant is born to a mother who received a maternal RSV immunization more than 14 days prior to delivery and is not eligible for RSV preventative monoclonal antibody
* Bleeding disorder or condition associated with prolonged bleeding that would present as a safety risk per opinion of the investigator
* History of severe adverse reaction associated with a vaccine and/or severe allergic reaction to any component of the vaccines or RSV monoclonal antibody
* Has an active neoplastic disease, or a history of any hematologic malignancy
* History of a severe allergic reaction (e.g., anaphylaxis) after a previous dose or to a component of a vaccine administered on the day of study enrollment
* Immunosuppression as a result of an underlying illness or treatment or use of anti-cancer chemotherapy or radiation therapy since birth
* For infants receiving DTaP vaccine (alone or combination vaccine): Encephalopathy (e.g., coma, decreased level of consciousness, prolonged seizures), not attributable to another identifiable cause, within 7 days of administration of previous dose of DTaP
* Intention to receive non-live or live vaccines during the 4 weeks after Visit 1; vaccines may be administered after enrollment if deemed a personal or public health priority by the health care provider caring for this patient or the study team
* Long term (at least 14 days of prednisone 2 mg/kg/day or equivalent other glucocorticoid) use of any parenteral steroids within the 6 months prior to enrollment (topical, nasal and inhaled steroids are allowed)

Where it's running

  • Kaiser Permanente Northern California
    Oakland, California, United States
    Recruiting
  • Emory University
    Atlanta, Georgia, United States
    Recruiting
  • Columbia University
    New York, New York, United States
    Recruiting
  • Duke University
    Durham, North Carolina, United States
    Recruiting
  • Cincinnati Children's Hospital Medical Center
    Cincinnati, Ohio, United States
    Recruiting
  • Centers for Disease Control and Prevention
    Atlanta, Georgia, United States
    Active not recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.