NCT03702231 2023-08-04Response to the SHINGRIX Varicella Zoster Virus (VZV) Vaccine in Chronic Lymphocytic Leukemia (CLL) and CLL Treated With Bruton's Tyrosine Kinase Inhibitor (BTK-I)National Institutes of Health Clinical Center (CC)Phase 2 Completed116 enrolled 11 charts