Protecting newborns from RSV with maternal vaccine and newborn antibody

Real-World Effectiveness of Perinatal RSV Immunoprophylaxis

NIH-funded research Yale University · NIH-11231714

Looks at whether a vaccine given during pregnancy or a long-lasting antibody given to newborns prevents RSV illness in infants.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionYale University NIH-funded
Lab location1 site (New Haven, United States)
Project IDNIH-11231714 on NIH RePORTER

What this research studies

This project will compare infants who get RSV illness with similar infants who do not to see if maternal vaccination or a long-acting monoclonal antibody given at birth lowers the chance of severe RSV. Researchers will use active surveillance at hospitals and clinics to find cases in both inpatient and outpatient settings. They will combine clinical records, demographic information, virus testing, and immune measurements to understand real-world protection. The work focuses on infants under one year and uses data from multiple clinical sites to reflect routine use outside clinical trials.

Who could benefit from this research

Good fit: Ideal candidates are pregnant people and their newborns or infants under 12 months who receive or are eligible for maternal RSV vaccination or a long-acting monoclonal antibody at participating clinics or hospitals.

Not a fit: Older children, adults, and infants not seen at participating sites or not eligible for perinatal immunoprophylaxis are unlikely to get direct benefit from this project.

Why it matters

Potential benefit: If successful, the findings could show how well maternal vaccines and newborn antibodies protect infants from RSV and help guide vaccination and treatment policies.

How similar studies have performed: Randomized trials have shown maternal RSV vaccines and long-acting monoclonal antibodies can prevent RSV in infants, but real-world effectiveness and implementation questions remain.

Where this research is happening

New Haven, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 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.