A Study to Evaluate Long-term Impact of VARIVAX Among Children and Adolescents (V210-036)(COMPLETED)

August 17, 2017 updated by: Merck Sharp & Dohme LLC

Fifteen Year Follow-up to Evaluate Long-term Effectiveness of VARIVAX Among Children and Adolescents

The purpose of these continuing post-licensure studies is to evaluate the long-term effectiveness of VARIVAX® [Varicella Virus Vaccine Live (Oka/Merck)] and to assess the impact of the vaccine on the epidemiology of varicella and herpes zoster.

Study Overview

Status

Completed

Conditions

Detailed Description

Parents/guardians of the cohort of children vaccinated between 12 and 23 months of age during a six-month period in 1995 (June-November) at KPMCP Northern California were interviewed by telephone at 6-month intervals to ascertain whether their child had varicella or herpes zoster in the 6 months prior to interview. Follow-up continued for a minimum of 14 years after vaccination.

Study Type

Observational

Enrollment (Actual)

7585

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

1 year to 1 year (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

15 years prospective follow-up of the original study cohort

Description

Inclusion Criteria:

  • Subject was a member of Kaiser Permanente Northern California, age 12-23 months, received a dose of varicella vaccine between June and November 1995, and parents accepted to participate in 15-year follow-up

Exclusion Criteria:

  • Subjects diagnosed with varicella before study enrollment
  • Subject's parents unable to complete telephone interviews in English, Spanish, or Cantonese

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

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Varivax vaccinated children
Children who are members of Kaiser Permanente Medical Care Program (KPMCP) and who received a first dose of the varicella vaccine, Varivax, in 1995 between the ages of 12 and 23 months.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With an Occurrence of Breakthrough Varicella
Time Frame: From 6 weeks to 168 months (14 years) post vaccination
Parents/guardians of Varivax vaccinated children were interviewed every 6 months after vaccination. The number of participants with varicella (referred to as varicella with "any symptoms") were reported by parents during the interview. No medical confirmation of the diagnosis was required.
From 6 weeks to 168 months (14 years) post vaccination
Incidence Rate of Breakthrough Varicella
Time Frame: From 6 weeks to 168 months (14 years) post vaccination
Parents/guardians of Varivax vaccinated children were interviewed every 6 months after vaccination. The number of participants with varicella (referred to as varicella with "any symptoms") were reported by parents during the interview. No medical confirmation of the diagnosis was required.
From 6 weeks to 168 months (14 years) post vaccination

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With an Occurrence of Herpes Zoster Infection
Time Frame: From 6 weeks to 168 months (14 years) post vaccination
Herpes zoster cases were physician-diagnosed cases.
From 6 weeks to 168 months (14 years) post vaccination
Incidence Rate of Herpes Zoster Infection
Time Frame: From 6 weeks to 168 months (14 years) post vaccination
Herpes zoster cases were physician-diagnosed.
From 6 weeks to 168 months (14 years) post vaccination

Collaborators and Investigators

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

Sponsor

Merck Sharp & Dohme LLC

Collaborators

Kaiser Permanente

Investigators

  • Principal Investigator: Roger Baxter, Kaiser Permanente

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.

General Publications

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)

June 1, 1995

Primary Completion (Actual)

September 1, 2010

Study Completion (Actual)

November 1, 2010

Study Registration Dates

First Submitted

February 26, 2010

First Submitted That Met QC Criteria

February 26, 2010

First Posted (Estimate)

March 1, 2010

Study Record Updates

Last Update Posted (Actual)

September 15, 2017

Last Update Submitted That Met QC Criteria

August 17, 2017

Last Verified

August 1, 2017

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • V210-036
  • 2010_014 (Other Identifier: Merck)
  • EP08005.002 (Other Identifier: Merck)

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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