Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
PHASE1
9 participants
INTERVENTIONAL
2007-06-30
2007-08-31
Brief Summary
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Hypothesis: A single dose of Acyline will suppress gonadotropins, and testosterone, estradiol and dihydrotestosterone (DHT) for 24 hours in man, and the magnitude and duration of the suppression will increase with increasing doses of Acyline.
Detailed Description
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Acyline temporarily blocks the production of the hormone testosterone in normal men. It has been given to over 100 men in an injection form. This study will be testing acyline in a pill form. This is the first time the pill form has been tested in humans.
This study may help develop an oral form of a testosterone-blocker, which may be useful in the treatment of diseases such as prostate cancer, premature puberty and possibly in a male contraceptive.
This study requires three 12-hour blood draw periods for pharmacokinetics (PK) testing. PK testing looks to see how much study drug is in the blood. This gives information about how the body handles and gets rid of the study drug.
Conditions
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Keywords
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Study Design
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NON_RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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A
Subjects will receive progressively increasing doses of 10, 20 and 40 mg of oral acyline, on 3 occasions, each separated by 1 week
Acyline
10, 20 and 40 mg of Oral acyline, given on 3 occasions, separated by 1 week.
Interventions
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Acyline
10, 20 and 40 mg of Oral acyline, given on 3 occasions, separated by 1 week.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
18 Years
50 Years
MALE
Yes
Sponsors
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Merrion Pharmaceuticals, LLC
INDUSTRY
University of Washington
OTHER
Responsible Party
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University of Washington
Principal Investigators
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John K Amory
Role: PRINCIPAL_INVESTIGATOR
University of Washington
Locations
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University of Washington
Seattle, Washington, United States
Countries
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References
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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. doi: 10.1210/jcem.87.7.8675.
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. doi: 10.1210/jc.2003-032123.
Matthiesson KL, Amory JK, Berger R, Ugoni A, McLachlan RI, Bremner WJ. Novel male hormonal contraceptive combinations: the hormonal and spermatogenic effects of testosterone and levonorgestrel combined with a 5alpha-reductase inhibitor or gonadotropin-releasing hormone antagonist. J Clin Endocrinol Metab. 2005 Jan;90(1):91-7. doi: 10.1210/jc.2004-1228. Epub 2004 Oct 27.
Amory JK, Bremner WJ. Oral testosterone in oil plus dutasteride in men: a pharmacokinetic study. J Clin Endocrinol Metab. 2005 May;90(5):2610-7. doi: 10.1210/jc.2004-1221. Epub 2005 Feb 15.
Amory JK, Page ST, Bremner WJ. Oral testosterone in oil: pharmacokinetic effects of 5alpha reduction by finasteride or dutasteride and food intake in men. J Androl. 2006 Jan-Feb;27(1):72-8. doi: 10.2164/jandrol.05058.
Page ST, Lin DW, Mostaghel EA, Hess DL, True LD, Amory JK, Nelson PS, Matsumoto AM, Bremner WJ. Persistent intraprostatic androgen concentrations after medical castration in healthy men. J Clin Endocrinol Metab. 2006 Oct;91(10):3850-6. doi: 10.1210/jc.2006-0968. Epub 2006 Aug 1.
Page ST, Amory JK, Anawalt BD, Irwig MS, Brockenbrough AT, Matsumoto AM, Bremner WJ. Testosterone gel combined with depomedroxyprogesterone acetate is an effective male hormonal contraceptive regimen and is not enhanced by the addition of a GnRH antagonist. J Clin Endocrinol Metab. 2006 Nov;91(11):4374-80. doi: 10.1210/jc.2006-1411. Epub 2006 Aug 29.
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.
Other Identifiers
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07-4947-W 02
Identifier Type: OTHER
Identifier Source: secondary_id
31511-W
Identifier Type: -
Identifier Source: org_study_id