ORAL T-8 Oral Testosterone for Male Hormonal Contraception - Full Text View

Purpose

The purpose of this study is to test how the body absorbs a new form of oral testosterone (T). On Day 1 and Day 9 there are overnight stays in the General Clinical Research Center at the University of Washington to monitor blood testosterone levels over a 24-hour period.

Condition	Intervention	Phase
Healthy	Drug: Oral Testosterone Drug: Acyline	Phase 1


Study Type:	Interventional
Study Design:	Intervention Model: Single Group Assignment Masking: None (Open Label) Primary Purpose: Health Services Research
Official Title:	Pharmacokinetics of Modified Slow-Release Oral Testosterone Over 10 Days in Normal Men With Experimental Hypogonadism

Resource links provided by NLM:

Drug Information available for: Testosterone

U.S. FDA Resources

Further study details as provided by John Amory, University of Washington:

Primary Outcome Measures:

Maximum Testosterone Concentration [ Time Frame: baseline & day 9 ]
initial pharmacokinetics [PK] (day 1) of oral testosterone dosed 3 times daily and the PK after 9 days of treatment
Mean Testosterone Concentration [ Time Frame: baseline & day 9 ]
initial 24-hour pharmacokinetics (PK) of oral testosterone dosed 3 times daily and post 24-hour PK after 9 days of treatment

Secondary Outcome Measures:

Maximum Dihydrotestosterone (DHT) Concentration [ Time Frame: baseline & day 9 ]
Mean Dihydrotestosterone (DHT) Concentration [ Time Frame: baseline & day 9 ]
Maximum Sex Hormone-Binding Globulin (SHGB)Concentration [ Time Frame: baseline & day 9 ]
Mean SHGB Concentration [ Time Frame: baseline & day 9 ]
Maximum Estradiol Concentration [ Time Frame: baseline & day 9 ]
Mean Estradiol Concentration [ Time Frame: baseline & day 9 ]
Free T Maximum Concentration [ Time Frame: baseline & day 9 ]
Free T normal range 4.7-18 ng/dL
Free Testosterone Mean Concentration [ Time Frame: baseline & day 9 ]
Free T normal range 4.7-18 ng/dL


Enrollment:	14
Study Start Date:	July 2010
Study Completion Date:	June 2012
Primary Completion Date:	October 2010 (Final data collection date for primary outcome measure)

Arms	Assigned Interventions
Experimental: Acyline and oral testosterone	Drug: Oral Testosterone Oral Testosterone: 300 mg, pills, three times daily Day 1 - 10 (total of 27 pills) Drug: Acyline 300 ug/kg injection on Day 0

Detailed Description:

We will administer two experimental drugs, acyline and oral testosterone. Acyline shots will be given on Day 0 to turn off the body's testosterone production for about 10-14 days.

The next day, Day 1, subjects begin taking 300 mg modified slow-release testosterone pill by mouth, three times a day, around 9 AM, 1 PM, and 7 PM for a total of 27 pills.

There are overnight stays on Day 1 and Day 9 to allow monitoring of blood testosterone levels over a 24 hour period, from @9 AM to 9 AM the next morning. At those visits, blood is drawn at baseline (before taking the pill) and at 1, 2, 4, 5, 6, 8, 10, 11, 12, 14, 16, and 24 hours after the morning dose.

Acyline is an experimental drug. The FDA allows its use only in research with a small number of volunteers. We have used acyline in over 125 men without serious side effects. The use of testosterone in this study is experimental and there may be unknown or unanticipated risks.

Eligibility


Ages Eligible for Study:	18 Years to 55 Years (Adult)
Sexes Eligible for Study:	Male
Accepts Healthy Volunteers:	Yes

Criteria

INCLUSION CRITERIA:

able and willing to
not participate in another drug study or donate blood, not take medications
use contraception, comply with the protocol

EXCLUSION CRITERIA:

abnormal evaluation, based on physical exam, medical history, blood tests (including serum chemistry, hematology, HIV, HCV, hormone levels)
history or current use of alcohol, drug, steroid abuse, >3 alcohol drinks/day
history of testicular disease, severe testicular trauma, major psychiatric disorder, bleeding disorders, current use of anti-coagulants or testosterone
participation in hormonal drug study within past month

Contacts and Locations

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01167829

Locations


United States, Washington
University of Washington
Seattle, Washington, United States, 98195

Sponsors and Collaborators

University of Washington

GlaxoSmithKline

Investigators


Principal Investigator:	John K Amory, MD	University of Washington

More Information

Publications:

Katznelson L, Finkelstein JS, Schoenfeld DA, Rosenthal DI, Anderson EJ, Klibanski A. Increase in bone density and lean body mass during testosterone administration in men with acquired hypogonadism. J Clin Endocrinol Metab. 1996 Dec;81(12):4358-65.

Behre HM, Kliesch S, Leifke E, Link TM, Nieschlag E. Long-term effect of testosterone therapy on bone mineral density in hypogonadal men. J Clin Endocrinol Metab. 1997 Aug;82(8):2386-90.

Bhasin S, Bremner WJ. Clinical review 85: Emerging issues in androgen replacement therapy. J Clin Endocrinol Metab. 1997 Jan;82(1):3-8. Review.

Wang C, Alexander G, Berman N, Salehian B, Davidson T, McDonald V, Steiner B, Hull L, Callegari C, Swerdloff RS. Testosterone replacement therapy improves mood in hypogonadal men--a clinical research center study. J Clin Endocrinol Metab. 1996 Oct;81(10):3578-83.

Snyder PJ, Peachey H, Berlin JA, Hannoush P, Haddad G, Dlewati A, Santanna J, Loh L, Lenrow DA, Holmes JH, Kapoor SC, Atkinson LE, Strom BL. Effects of testosterone replacement in hypogonadal men. J Clin Endocrinol Metab. 2000 Aug;85(8):2670-7.

Kelch RP, Jenner MR, Weinstein R, Kaplan SL, Grumbach MM. Estradiol and testosterone secretion by human, simian, and canine testes, in males with hypogonadism and in male pseudohermaphrodites with the feminizing testes syndrome. J Clin Invest. 1972 Apr;51(4):824-30.

Weinstein RL, Kelch RP, Jenner MR, Kaplan SL, Grumbach MM. Secretion of unconjugated androgens and estrogens by the normal and abnormal human testis before and after human chorionic gonadotropin. J Clin Invest. 1974 Jan;53(1):1-6.

Herbst KL, Anawalt BD, Amory JK, Bremner WJ. Acyline: the first study in humans of a potent, new gonadotropin-releasing hormone antagonist. J Clin Endocrinol Metab. 2002 Jul;87(7):3215-20.

Herbst KL, Coviello AD, Page S, Amory JK, Anawalt BD, Bremner WJ. A single dose of the potent gonadotropin-releasing hormone antagonist acyline suppresses gonadotropins and testosterone for 2 weeks in healthy young men. J Clin Endocrinol Metab. 2004 Dec;89(12):5959-65.

Bagatell CJ, Bremner WJ. Androgens in men--uses and abuses. N Engl J Med. 1996 Mar 14;334(11):707-14. Review.

Fosså SD, Opjordsmoen S, Haug E. Androgen replacement and quality of life in patients treated for bilateral testicular cancer. Eur J Cancer. 1999 Aug;35(8):1220-5.

Swerdloff RS, Wang C, Cunningham G, Dobs A, Iranmanesh A, Matsumoto AM, Snyder PJ, Weber T, Longstreth J, Berman N. Long-term pharmacokinetics of transdermal testosterone gel in hypogonadal men. J Clin Endocrinol Metab. 2000 Dec;85(12):4500-10.

Snyder CN, Clark RV, Caricofe RB, Bush MA, Roth MY, Page ST, Bremner WJ, Amory JK. Pharmacokinetics of 2 novel formulations of modified-release oral testosterone alone and with finasteride in normal men with experimental hypogonadism. J Androl. 2010 Nov-Dec;31(6):527-35. doi: 10.2164/jandrol.109.009746. Epub 2010 Apr 8.

de Ronde W. Hyperandrogenism after transfer of topical testosterone gel: case report and review of published and unpublished studies. Hum Reprod. 2009 Feb;24(2):425-8. doi: 10.1093/humrep/den372. Epub 2008 Oct 23. Review.

Brachet C, Vermeulen J, Heinrichs C. Children's virilization and the use of a testosterone gel by their fathers. Eur J Pediatr. 2005 Oct;164(10):646-7. Epub 2005 Jul 16.

Amory JK, Matsumoto AM. The therapeutic potential of testosterone patches. Expert Opin Investig Drugs. 1998 Dec;7(12):1977-85.

1. Plymate SR "Male Hypogonadism" in Principles and Practice of Endocrinology and Metabolism (3rd. Ed). Ed. Kenneth Becker, pp:1125-1150


Responsible Party:	John Amory, Professor, University of Washington
ClinicalTrials.gov Identifier:	NCT01167829 History of Changes
Other Study ID Numbers:	38636-D
Study First Received:	July 20, 2010
Results First Received:	September 25, 2012
Last Updated:	August 23, 2013

Keywords provided by John Amory, University of Washington:


Experimental Acyline plus 27 oral testosterone pills taken 3x/day

Additional relevant MeSH terms:


Testosterone Testosterone enanthate Testosterone undecanoate Testosterone 17 beta-cypionate Methyltestosterone Androgens	Hormones Hormones, Hormone Substitutes, and Hormone Antagonists Physiological Effects of Drugs Antineoplastic Agents, Hormonal Antineoplastic Agents Anabolic Agents

ClinicalTrials.gov processed this record on August 17, 2017

ORAL T-8 Oral Testosterone for Male Hormonal Contraception (Oral T8)