A Study to Evaluate the Safety and Immunogenicity of Inactivated Varicella-Zoster Virus (VZV) Vaccine in Adults With Hematologic Malignancies (HM) Receiving Treatment With Anti-Cluster of Differentiation (CD) 20 Monoclonal Antibodies (V212-013)

Merck Sharp & Dohme LLC80 enrolled

Overview

An open-label, multicenter study to evaluate the safety and immunogenicity of inactivated VZV vaccine (V212) in participants with hematologic malignancies (HM) who are currently receiving anti-CD20 monoclonal antibodies. The primary hypothesis is that vaccination with V212 vaccine will elicit significant VZV-specific immune responses at \~28 days after vaccination 4. The statistical criterion for significance requires that the lower bound of the 2-sided 90% confidence interval of the geometric mean fold rise in immune response in V212 recipients is \>1.0.

Study Type

INTERVENTIONAL

Allocation

Purpose

PREVENTION

Masking

NONE

Enrollment

Conditions

Herpes Zoster

Interventions

V212

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Diagnosed with a HM and is receiving treatment with anti-CD20 monoclonal antibodies and is not likely to undergo hematopoietic cell transplant (HCT). * Has a predicted life expectancy of ≥ 12 months. * Has prior history of varicella or antibodies to VZV due to exposure to the disease in a country where the disease is common. * All female participants of childbearing potential must have a negative serum or urine pregnancy test. Exclusion Criteria: * A history of allergic reaction to any vaccine component (including gelatin) or an anaphylactic/anaphylactoid reaction to neomycin. * Prior history of HZ within 1 year of enrollment. * Prior receipt of any varicella or zoster vaccine. * Participant is pregnant or breastfeeding or expecting to conceive within the period of 2 weeks prior to enrollment throughout 6 months after last vaccination dose. * Any live virus vaccine administered or scheduled in the period from 4 weeks prior to Dose 1 through 28 days postvaccination dose 4. * Any inactivated vaccine administered or scheduled within the period from 7 days prior to, through 7 days following, any dose of study vaccine. * Participant is currently participating or has participated in a study with an investigational anti-CD20 monoclonal antibody within 3 months of signing informed consent.

Outcomes

Primary Outcomes

Geometric Mean Fold Rise (GMFR) of the VZV-specific Immune Responses Measured by VZV Interferon-gamma (IFN-γ) Enzyme-linked Immunospot (ELISPOT)

The VZV ELISPOT assay detects IFN-γ-secreting, VZV-specific cells from peripheral blood mononuclear cells (PBMCs). The unit of measure of the assay is ELISPOT cell count / 10\^6 PBMCs, and is expressed as geometric mean count (GMC). The GMFR is GMC at \~28 days after Vaccination 4 / GMC on Day 1.

Time frame: Prevaccination (Day 1) and ~28 days after Vaccination 4 (~Day 118)

Percentage of Participants With an Adverse Event

An adverse experience (AE) is defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the study vaccine, whether or not considered related to the use of the product. Any worsening of a preexisting condition which is temporally associated with the use of the product is also an adverse experience. The percentage of participants with any AE was summarized.

Time frame: Up to ~28 days after Vaccination 4 (~Day 118)

Percentage of Participants With an Injection-site Adverse Event

Time frame: Up to 5 days after any vaccination

Percentage of Participants With a Systemic Adverse Event

Time frame: Up to ~28 days after Vaccination 4 (~Day 118)

Percentage of Participants With a Serious Adverse Event

A serious AE (SAE) is an AE that results in death, is life threatening, results in persistent or significant disability or incapacity, results in or prolongs an inpatient hospitalization, is a congenital anomaly or birth defect, is an overdose, is a cancer, or is another important medical event. The percentage of participants with any SAE was summarized.

Time frame: Up to ~28 days after Vaccination 4 (~Day 118)

Percentage of Participants With a Vaccine-related Serious Adverse Event

Time frame: Up to ~28 days after Vaccination 4 (~Day 118)

Percentage of Participants With Study Vaccination Withdrawn Due to an Adverse Event

An AE is defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the study vaccine, whether or not considered related to the use of the product. Any worsening of a preexisting condition which is temporally associated with the use of the product is also an adverse experience. The percentage of participants with study vaccine withdrawn due to an AE was summarized.

Time frame: Up to Vaccination 4 (~Day 90)