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ACY-6 Oral Administration of Acyline

Oral Administration of the GnRH Antagonist Acyline in Normal Men

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00471185
Acronym
ACY-6
Enrollment
9
Registered
2007-05-09
Start date
2007-06-30
Completion date
2007-08-31
Last updated
2010-12-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Contraception

Keywords

Male Contraception, Acyline

Brief summary

In this study, we propose oral dosing of GIPET enhanced oral acyline (MER-104) to determine if this potentially useful compound is safe and effective at suppression of gonadotropins after oral dosing in man. 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

The purpose of this study is to test how the body responds to a new oral form of acyline and to also look at the safety of oral acyline. 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.

Interventions

10, 20 and 40 mg of Oral acyline, given on 3 occasions, separated by 1 week.

Sponsors

Merrion Pharmaceuticals, LLC
CollaboratorINDUSTRY
University of Washington
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

* Males between 18-50 years of Age in good health

Exclusion criteria

* Men in poor health, significant chronic or acute medical illness, known history of alcohol, illicit drug or anabolic steroid abuse

Design outcomes

Primary

MeasureTime frame
To evaluate the suppressive effects of GIPET-enhanced oral Acyline on pituitary gonadotropin and testosterone secretion in normal men and to assess any potential side effects of GIPET enhanced oral Acyline28-days

Secondary

MeasureTime frame
To define the pharmacokinetics of GIPET enhanced oral Acyline28-days
Assess any potential side effects of GIPET enhanced oral Acyline28-days

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026