At a glance
ClinicalIndex Comparison RecordN/ACompleted· 7,585 enrolled
Drug / intervention
Not specified
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.
Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Fifteen Year Follow-up to Evaluate Long-term Effectiveness of VARIVAX Among Children and Adolescents
In Brief
An observational study for Varicella and Herpes Zoster. Completed, enrolled 7,585 participants.
Detailed Summary
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 Details
Study Typeobservational
Allocation--
Masking--
Primary Purpose--
ConditionsVaricella, Herpes Zoster
Countries--
CollaboratorsKaiser Permanente
Timeline
N/ACompletedFinished
199519961997199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024202520262027
Enrollment StartJun 1995
First PostedMar 2010
Primary CompletionSep 2010
Study CompletionNov 2010
TodayJul 2026
First PostedMar 1, 2010
Enrollment StartJun 1, 1995
Primary CompletionSep 1, 2010
Study CompletionNov 1, 2010
TodayJul 2, 2026
Enrollment to primary: 15.3 yearsPosted 16.3 years ago