Recombinant Subunit Herpes Zoster Vaccine in VZV-Seronegative Organ Transplant Recipients

August 4, 2020 updated by: Deepali Kumar, University Health Network, Toronto

Safety and Immunogenicity of Non-live, Recombinant Subunit Herpes Zoster Vaccine in VZV-seronegative Solid Organ Transplant Recipients

The investigators plan to study the immunogenicity of the vaccine in VZV-seronegative solid organ transplant recipients. VZV-seronegative patients will be enrolled after organ transplantation. The investigators hypothesize that the recombinant subunit Herpes zoster vaccine is able to induce cellular immunogenicity after transplantation in VZV-seronegative patients.

Study Overview

Status

Completed

Detailed Description

Solid organ transplant recipients receive lifelong immunosuppression and are at increased risk for severe primary VZV infection (chickenpox) and VZV reactivation (shingles). A non-live, recombinant subunit Herpes zoster vaccine (Shingrix; GSK vaccines) was recently licensed for the prevention of shingles in people aged 50 years or older and was shown to induce both cellular and humoral immunity. As both components of the immune system are important for protection against VZV, the investigators plan to study the humoral and cellular immunogenicity of the vaccine after organ transplantation in VZV-seronegative patients. Indeed, the current live VZV vaccine is contraindicated after transplantation; therefore, the non-live recombinant varicella-zoster subunit vaccine, if shown to induce cellular and humoral immunity, could potentially be offered to VZV-seronegative transplant patients.

Study Type

Interventional

Enrollment (Actual)

23

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Ontario
      • Toronto, Ontario, Canada, M5G2N2
        • University Health Network, Toronto General Hospital, Multi-Organ Transplant

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Solid organ transplant recipient.
  • Age ≥18 years
  • VZV-seronegative at time of transplant
  • ≥90 days post-transplant
  • Able to provide informed consent

Exclusion Criteria:

  • Has already received the recombinant subunit Herpes zoster vaccine in the past
  • Ongoing CMV viremia > 200 IU/mL
  • HIV infection
  • Diagnosis of malignancy (e.g. PTLD)
  • History of a severe allergic reaction (anaphylactic reaction) after any vaccine
  • Documented Chickenpox or Shingles after transplantation
  • Congenital immunodeficiency (e.g., CVID)
  • Treatment for rejection in the past 30 days
  • Immunoglobulin in the past 30 days or anticipated to receive immunoglobulin
  • Anti-CD20 monoclonal antibody in the past 6 months or anticipated to receive Anti-CD20 monoclonal antibody
  • Plasmapheresis in the past 30 days or anticipated to receive plasmapheresis
  • Febrile illness in the past one week
  • Unable to comply with the study protocol

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: VZV seronegative Transplant Patients
recombinant subunit Herpes zoster vaccine
Seronegative Solid Organ Transplant patients will receive two doses of the subunit Herpes zoster vaccine at 0 and 2-6 months

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Humoral immunity to varicella zoster induced by the recombinant subunit Herpes zoster vaccine.
Time Frame: 4 weeks after second dose of vaccine
Fold increase in concentration of anti-gE antibody titer from pre- to post-vaccination
4 weeks after second dose of vaccine

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Rate of Vaccine-related Adverse Events
Time Frame: Up to 4 weeks after second dose of vaccine
Adverse events will be graded as mild, moderate, severe
Up to 4 weeks after second dose of vaccine

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Deepali Kumar, MD, Multi organ transplant program, University Health Network, Toronto

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 25, 2018

Primary Completion (Actual)

September 5, 2019

Study Completion (Actual)

September 5, 2019

Study Registration Dates

First Submitted

September 23, 2018

First Submitted That Met QC Criteria

September 24, 2018

First Posted (Actual)

September 26, 2018

Study Record Updates

Last Update Posted (Actual)

August 5, 2020

Last Update Submitted That Met QC Criteria

August 4, 2020

Last Verified

August 1, 2020

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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