Study of DHT-Gel to Treat the Symptoms of Low Testosterone in Men 55-80
Public ClinicalTrials.gov record NCT00163566. 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
A Phase II, Placebo-Controlled, Double-Blind, Dose-Ranging (35mg/Day or 70 mg/Day), Randomized, Study of Cutaneous Dihydrotestosterone (DHT)-Gel (0.7% Hydroalcoholic Gel) in Older Hypogonadal Males Ages 55-80 Years: Effect on Body Composition, Libido, and Physical and Sexual Functioning
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this study is to evaluate whether DHT-Gel, when applied daily to the skin, can relieve the symptoms of low testosterone in men aged 55-80. These symptoms include reduced muscle strength, increase fat mass, low libido, feeling blue or moody
Study identification
- NCT ID
- NCT00163566
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 128 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 55 Years to 80 Years
- Sex
- Male
- 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
- Sep 30, 2004
- Primary completion
- Aug 31, 2006
- Completion
- Sep 24, 2006
- Last update posted
- Aug 14, 2022
2004 – 2006
United States locations
- U.S. sites
- 16
- U.S. states
- 12
- U.S. cities
- 16
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Radiant Research - Phoenix | Phoenix | Arizona | 85013 | — |
| Harbor UCLA Medical Reserach and Education Institute | Torrance | California | 90502 | — |
| Malcom Randall VA Medical Center | Gainesville | Florida | 32608 | — |
| Genesis Research Consultants | Longwood | Florida | 32779 | — |
| Pensacola Research Consultants | Pensacola | Florida | 32503 | — |
| North Indiana Research | Fort Wayne | Indiana | 46825 | — |
| University of Louisville | Louisville | Kentucky | 40202 | — |
| Johns Hopkins University | Baltimore | Maryland | 21287 | — |
| Bethesda Health Research | Bethesda | Maryland | 20817 | — |
| Duke University Medical Center | Durham | North Carolina | 27710 | — |
| Oregon Health Sciences Center | Portland | Oregon | 97239 | — |
| VA Medical Center | Houston | Texas | 77030 | — |
| Radiant Research - San Antonio | San Antonio | Texas | 78229 | — |
| University of Utah School of Medicine | Salt Lake City | Utah | 84108 | — |
| McGuire VA Medical Center | Richmond | Virginia | 23249 | — |
| VA Puget Sound Health Care | 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 NCT00163566, 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 Aug 14, 2022 · Synced Sep 3, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00163566 live on ClinicalTrials.gov.