Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 3 Interventional Accepts healthy volunteers

Shingles Prevention Study

ClinicalTrials.gov ID: NCT00007501

Public ClinicalTrials.gov record NCT00007501. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 25, 2026, 3:35 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

CSP #403 - Trial of Varicella Zoster Vaccine for the Prevention of Herpes Zoster and Its Complications

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The incidence and severity of HZ (or shingles), as well as the frequency and severity of its complications, increases markedly with increasing age. More than half of all cases occur in persons over the age of 60. Even without complications, HZ can interfere with an elderly patient's ability to perform essential activities of daily living, resulting in a loss of independence that is emotionally devastating and frequently irreversible. The most common complication of HZ in elderly persons is postherpetic neuralgia (PHN), which frequently results in disordered sleep, chronic fatigue, anxiety and severe depression. Antiviral therapy has a modest impact on the acute phase of HZ. However, it does not appear to prevent the development of PHN. This study is a 5.5 year randomized, double-blind, placebo-controlled, efficacy trial to determine whether vaccination with live-attenuated Oka/Merck varicella-zoster decreases the incidence and/or severity of herpes zoster (HZ) and its complications in adults 60 years of age and older.

Study identification

NCT ID
NCT00007501
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Enrollment
38,456 participants

Conditions and interventions

Interventions

Biological

Eligibility (public fields only)

Age range
60 Years and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 1998 (Type not available)
Primary completion
Apr 2004 (Actual)
Completion
Feb 2011 (Actual)
Last update posted
Jul 4, 2013

1998 – 2011

United States locations

U.S. sites
22
U.S. states
17
U.S. cities
22
Facility City State ZIP Site status
VA Medical Center, Birmingham Birmingham Alabama 35233 —
VA Palo Alto Health Care System Palo Alto California 94304-1290 —
VA San Diego Healthcare System, San Diego San Diego California 92161 —
University of Colorado Denver Colorado 80262 —
James A. Haley Veterans Hospital, Tampa Tampa Florida 33612 —
Edward Hines, Jr. VA Hospital Hines Illinois 60141-5000 —
VA Medical Center, Lexington Lexington Kentucky 40502 —
VA Maryland Health Care System, Baltimore Baltimore Maryland 21201 —
NIH-NIAID (Bethesda, MD) Bethesda Maryland 20892 —
VA Medical Center, Jamaica Plain Campus Boston Massachusetts 02130 —
VA Ann Arbor Healthcare System Ann Arbor Michigan 48113 —
VA Medical Center, Minneapolis Minneapolis Minnesota 55417 —
VA Medical Center, St Louis St Louis Missouri 63106 —
New Mexico VA Health Care System, Albuquerque Albuquerque New Mexico 87108-5153 —
New York Harbor HCS New York New York 10010 —
VA Medical Center, Northport Northport New York 11768 —
Rochester, NY (NIH) Rochester New York 14642 —
VA Medical Center, Durham Durham North Carolina 27705 —
Vanderbilt University Nashville Tennessee 37212-2637 —
Baylor University Houston Texas 77030 —
University of Texas at San Antonio San Antonio Texas 78229 —
VA Puget Sound Health Care System, Seattle Seattle Washington 98108 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00007501, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 4, 2013 · Synced Oct 25, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00007501 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →