Can a vaccine series shield CLL patients from pneumonia?
NCT ID NCT05183854
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a two-shot pneumonia vaccine series (PCV20 and PPSV23) can help people with chronic lymphocytic leukemia (CLL) build a stronger immune defense against pneumococcal infections. About 61 adults with CLL who have not yet had treatment, or who are on a specific drug, will receive the vaccines. Researchers will measure antibody levels in the blood to see if the vaccines trigger a protective immune response.
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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
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The condition terms exactly as the trial's registrant entered them.
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Huntsman Cancer Institute/University of Utah
RECRUITINGSalt Lake City, Utah, 84112, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact
Contact Phone: •••-•••-•••• Email: •••••@•••••