Heart transplant vaccine study halted after just 4 patients

NCT ID NCT04845945

First seen Feb 04, 2026 · Last updated May 01, 2026 · Updated 13 times

Summary

This study looked at how well the pneumococcal vaccine works in people waiting for or who have received a heart transplant. Researchers used two blood tests to measure antibody levels after standard vaccination. Only 4 people took part before the study was stopped early.

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Contacts and locations

Locations

  • Montefiore Medical Center, Infectious Diseases

    The Bronx, New York, 10467, United States

Conditions

Explore the condition pages connected to this study.