Pneumococcal Pneumonia Vaccine Series (PCV20 and PPSV23) in Patients With Chronic Lymphocytic Leukemia Associated Immunodeficiency, PROTECT CLL Trial
Public ClinicalTrials.gov record NCT05183854. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Phase II Study of the Efficacy of the Pneumococcal Pneumonia Vaccine Series in Patients With Chronic Lymphocytic Leukemia Associated Immunodeficiency (PROTECT CLL)
Study identification
- NCT ID
- NCT05183854
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- University of Utah
- Other
- Enrollment
- 61 participants
Conditions and interventions
Interventions
- Pneumococcal 20-valent Conjugate Vaccine Biological
- Pneumococcal Polyvalent Vaccine Biological
Biological
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 30, 2022
- Primary completion
- Feb 28, 2027
- Completion
- May 31, 2028
- Last update posted
- Apr 8, 2026
2022 – 2028
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Huntsman Cancer Institute/University of Utah | Salt Lake City | Utah | 84112 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT05183854, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 8, 2026 · Synced May 8, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05183854 live on ClinicalTrials.gov.