Overview

This trial is active, not recruiting.

Conditions hypogonadism,, late onset hypogonadism,, low testosterone
Treatment dihydrotestosterone (0.7%) in hydroalcoholic gel
Phase phase 2
Sponsor ASCEND Therapeutics
Start date October 2004
End date October 2006
Trial size 128 participants
Trial identifier NCT00163566, 03-DHT-01

Summary

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

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Allocation randomized
Endpoint classification safety/efficacy study
Intervention model parallel assignment
Masking double blind (subject, investigator, outcomes assessor)
Primary purpose treatment
Arm
(Placebo Comparator)
Placebo gel twice per day
dihydrotestosterone (0.7%) in hydroalcoholic gel
transdermal gel, 0.7% DHT, 0.35 mg/day or 0.70 mg/day total daily dose (or placebo gel), applied twice per day
(Active Comparator)
0.7% DHT gel twice per day, 35 mg/day
dihydrotestosterone (0.7%) in hydroalcoholic gel
transdermal gel, 0.7% DHT, 0.35 mg/day or 0.70 mg/day total daily dose (or placebo gel), applied twice per day
(Active Comparator)
0.7% DHT gel twice per day, 70 mg/day
dihydrotestosterone (0.7%) in hydroalcoholic gel
transdermal gel, 0.7% DHT, 0.35 mg/day or 0.70 mg/day total daily dose (or placebo gel), applied twice per day

Primary Outcomes

Measure
Change in Body Composition
time frame:

Secondary Outcomes

Measure
Change in sexual libido, and overall function and mood
time frame:
Normalization of serum androgen levels
time frame:

Eligibility Criteria

Male participants from 55 years up to 80 years old.

Inclusion Criteria: - Men aged 55-80 Serum Testosterone > 275 Symptoms of Hypogonadism as determined by AMS scale In good overall health Exclusion Criteria: - Abnormal Prostate Exam for age Prostate or Breast Cancer Significant illness Weight >300lbs Generalized skin disease Unstable sleep apnea

Additional 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
Description Background - In the context of hypogonadism, androgen supplementation is clearly beneficial, particularly in younger males. The benefits of therapy in men with milder degrees of hypogonadism, and elderly males with testosterone deficiency, are less clear-cut. Several options are available for androgen replacement in adult men. Oral testosterone, intramuscular injections, subcutaneous implants and transdermal therapy have all been used. Each mode of delivery has advantages and drawbacks. Several alkylated derivatives of T are available for oral or sublingual use, including methyl testosterone and fluoxymesterone. However, they are not recommended for use as replacement therapy because of their associated adverse effects. Study Design - This is a multi-center, double-blind, placebo-controlled, parallel group, randomized study of DHT-Gel versus placebo gel in male subjects ages 55-80 years inclusive with low serum testosterone and symptoms compatible with the clinical diagnosis of hypogonadism. Total enrollment for this study will be approximately 120 subjects (40 subjects for each treatment group). Subjects will be treated with 35 mg/day DHT, 70 mg/day DHT, or placebo gel for 6 months. All subjects will apply the gel once daily. Up to 9 months of study participation, including up to 2 months of screening and a 1-month follow-up period, will be required by the protocol. The primary efficacy endpoint in this study is change in body composition as determined by DEXA scan. Secondary endpoints in this study include change in sexual libido, and overall function and mood, and normalization of serum androgen levels. A subset of sites will perform strength assessments, which will include handgrip dynamometry, and upper and lower body strength tests.
Trial information was received from ClinicalTrials.gov and was last updated in July 2012.
Information provided to ClinicalTrials.gov by ASCEND Therapeutics.