Determine the Efficacy of Topical Tretinoin Cream for the Prevention of Nonmelanoma Skin Cancer
Public ClinicalTrials.gov record NCT00007631. 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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
CSP #402 - VA Topical Tretinoin Chemoprevention Trial
Study identification
- NCT ID
- NCT00007631
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- US Department of Veterans Affairs
- Federal
- Enrollment
- 1,131 participants
Conditions and interventions
Interventions
- Tretinoin 0.1% cream or placebo Drug
- Placebo Other
Drug · Other
Eligibility (public fields only)
- Age range
- Not listed
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 28, 1998
- Primary completion
- Oct 31, 2004
- Completion
- Jun 30, 2006
- Last update posted
- Jan 29, 2009
1998 – 2006
United States locations
- U.S. sites
- 7
- U.S. states
- 7
- U.S. cities
- 7
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Carl T. Hayden VA Medical Center | Phoenix | Arizona | 85012 | — |
| VA Medical Center, Long Beach | Long Beach | California | 90822 | — |
| VA Medical Center, Miami | Miami | Florida | 33125 | — |
| Edward Hines, Jr. VA Hospital | Hines | Illinois | 60141-5000 | — |
| VA Medical Center, Durham | Durham | North Carolina | 27705 | — |
| VA Medical Center, Oklahoma City | Oklahoma City | Oklahoma | 73104 | — |
| VA Medical Center, Providence | Providence | Rhode Island | 02908 | — |
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 NCT00007631, 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 Jan 29, 2009 · Synced Jul 23, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00007631 live on ClinicalTrials.gov.