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Completed Phase 2 Interventional Accepts healthy volunteers

Expanded Dryvax Dilution Study in Previously Vaccinated Adults

ClinicalTrials.gov ID: NCT00050505

Public ClinicalTrials.gov record NCT00050505. 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 Jul 22, 2026, 5:47 PM EDT

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

Official title

A Multicenter, Double Blind, Randomized Dose-response Study of Dryvax Vaccine Against Smallpox in Previously Vaccinated Adults

Study identification

NCT ID
NCT00050505
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Enrollment
927 participants

Conditions and interventions

Conditions

Interventions

  • Live vaccinia virus vaccine Biological

Biological

Eligibility (public fields only)

Age range
32 Years to 70 Years
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
Sep 30, 2002
Primary completion
Not listed
Completion
Nov 30, 2003
Last update posted
Dec 4, 2014

2002 – 2003

United States locations

U.S. sites
7
U.S. states
5
U.S. cities
7
Facility City State ZIP Site status
Kaiser Permanente Vaccine Study Center Oakland California 94612
Stanford University Stanford California 94305-5208
UCLA Center For Vaccine Research Torrance California 90502
University of Maryland Baltimore Baltimore Maryland 21201
Saint Louis University St Louis Missouri 63110
University of Rochester Rochester New York 14642
Duke Health Center Durham North Carolina 27704

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 NCT00050505, 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 Dec 4, 2014 · Synced Jul 22, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00050505 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →