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Sponsors and Collaborators: |
University of Washington National Institutes of Health (NIH) Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) |
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Information provided by: | University of Washington |
ClinicalTrials.gov Identifier: | NCT00663793 |
We propose a study to determine the single-dose pharmacokinetics of these two novel formulations of testosterone in normal men with experimentally induced hypogonadism.
Condition | Intervention | Phase |
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Contraception Hypogonadism |
Drug: Acyline Drug: Testosterone |
Phase I |
Study Type: | Interventional |
Study Design: | Treatment, Non-Randomized, Open Label, Crossover Assignment, Pharmacokinetics Study |
Official Title: | Oral Androgens in Man-6: Pharmacokinetics of Slow and Fast Release, External Matrix Oral Testosterone Formulations in Normal Men With Experimental Hypogonadism |
Estimated Enrollment: | 16 |
Study Start Date: | September 2008 |
Estimated Study Completion Date: | May 2009 |
Estimated Primary Completion Date: | March 2009 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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1: Experimental
(Day 1) Acyline 300 mcg/kg once, followed 24 hours later (Day 2) by "immediate release" T 300 mg po once (as a control), followed 24 hours later (Day 3) by "external matrix fast release" T 300 mg once, followed 24 hours later (Day 4) by "external matrix slow release" T 300 mg once, followed 96 hours later (Day 8) by "immediate release" T 600 mg, followed 24 hours later (Day 9) by "external matrix fast release" T 600 mg po once, followed 48 hours later (Day 11) by "external matrix slow release" T 600 mg once.
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Drug: Acyline
300 mcg/kg
Drug: Testosterone
24 hours after acyline administration on Day 2 "immediate release" Testosterone (T) 300 mg po once (as a control), followed 24 hours later (Day 3) by "external matrix fast release" T 300 mg once, followed 24 hours later (Day 4) by "external matrix slow release" T 300 mg once, followed 96 hours later (Day 8) by "immediate release" T 600 mg, followed 24 hours later (Day 9) by "external matrix fast release" T 600 mg po once, followed 48 hours later (Day 11) by "external matrix slow release" T 600 mg once.
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This is an 2-3 month open-label, two week pharmacokinetic study of two novel formulations of oral testosterone (T), in normal men whose endogenous T production has been temporarily suppressed by the administration of the potent GnRH antagonist Acyline. We will be determining the relative pharmacokinetics of six different oral formulation of T in both rapid and slow release compared to the immediate release preparation studied previously by our group.
Ages Eligible for Study: | 18 Years to 50 Years |
Genders Eligible for Study: | Male |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
Exclusion Criteria:
Contact: John K Amory, MD | 206-616-1727 | jamory@u.washinton.edu |
Contact: Kymberley Anable | 206-616-0482 | kymmkatt@u.washington.edu |
United States, Washington | |
University of Washington | Recruiting |
Seattle, Washington, United States, 98195 | |
Contact: Kymberley Anable 206-616-0482 kymmkatt@u.washington.edu | |
Contact: Kathy Winter 206-616-0484 klwinter@u.washington.edu | |
Sub-Investigator: William J Bremner, MD, PhD | |
Sub-Investigator: Stephanie T Page, MD, PhD | |
Sub-Investigator: Christin N Snyder, MD | |
Sub-Investigator: Mara Y Roth, MD |
Principal Investigator: | John K Amory | University of Washington |
Responsible Party: | University of Washington ( John K Amory, MD, MPH ) |
Study ID Numbers: | 33738-B, U54 HD42456-06, K23 HD045386 |
Study First Received: | April 18, 2008 |
Last Updated: | February 23, 2009 |
ClinicalTrials.gov Identifier: | NCT00663793 History of Changes |
Health Authority: | United States: Food and Drug Administration |
Male Contraception Hypogonadism Testosterone |
Antineoplastic Agents, Hormonal Gonadal Disorders Hormone Antagonists Hormones, Hormone Substitutes, and Hormone Antagonists Endocrine System Diseases Methyltestosterone Hormones |
Testosterone 17 beta-cypionate Testosterone Anabolic Agents Hypogonadism Endocrinopathy Androgens |
Antineoplastic Agents, Hormonal Gonadal Disorders Antineoplastic Agents Physiological Effects of Drugs Hormones, Hormone Substitutes, and Hormone Antagonists Endocrine System Diseases Methyltestosterone Hormones |
Pharmacologic Actions Testosterone 17 beta-cypionate Anabolic Agents Testosterone Hypogonadism Therapeutic Uses Androgens |