Manipulation of the Intratesticular Hormonal Milieu With Exogenous Testosterone (HOP 5) Testicular Aspiration Addendum
IHOP-5
Male Hormonal Contraception Development: Suppression of Spermatogenesis With the Addition of a Potent GnRH Antagonist (Acyline) to Testosterone and DMPA (ACY-5) -Sub-Study (HOP 5)
2 other identifiers
interventional
23
1 country
1
Brief Summary
This study is being offered to all participants of the ACY-5 study as an optional addition to the male contraceptive study in which they participated. Participation is voluntary. The purpose of this added procedure (Testicular Aspiration-HOP 3) is to determine the amount of testosterone (male hormone) in the testes of men who are on a male contraceptive regimen.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Dec 2004
Shorter than P25 for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
December 1, 2004
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2005
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2005
CompletedFirst Submitted
Initial submission to the registry
September 8, 2005
CompletedFirst Posted
Study publicly available on registry
September 12, 2005
CompletedSeptember 19, 2008
September 1, 2008
7 months
September 8, 2005
September 18, 2008
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Intratesticular hormone levels
One year
Secondary Outcomes (1)
sperm count levels
One year
Study Arms (2)
1
ACTIVE COMPARATORTestosterone (T) gel for 6 months + DMPA (Depo-Medroxyprogesterone) (injected into muscle Day 0 \& at Month 3)
2
ACTIVE COMPARATORT gel for 6 months + DMPA (Day 0 \& Month 3) + Acyline 300 mcg/kg twice monthly for 12 weeks
Interventions
Eligibility Criteria
You may qualify if:
- Male between 18-55
- In good health
- With normal sperm counts and willing to use an acceptable form of contraception during the study
You may not qualify if:
- Male in poor health
- Significant chronic or acute medical illness
- Skin conditions that might interfere with or be exacerbated by testosterone gel
- No history of alcohol, illicit drug or anabolic steroid abuse
- Abnormal reproductive function
- Participation in a long-term male contraceptive study within three months of screening
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Washington
Seattle, Washington, 98195, United States
Related Publications (3)
Coviello AD, Bremner WJ, Matsumoto AM, Herbst KL, Amory JK, Anawalt BD, Yan X, Brown TR, Wright WW, Zirkin BR, Jarow JP. Intratesticular testosterone concentrations comparable with serum levels are not sufficient to maintain normal sperm production in men receiving a hormonal contraceptive regimen. J Androl. 2004 Nov-Dec;25(6):931-8. doi: 10.1002/j.1939-4640.2004.tb03164.x.
PMID: 15477366BACKGROUNDCoviello AD, Matsumoto AM, Bremner WJ, Herbst KL, Amory JK, Anawalt BD, Sutton PR, Wright WW, Brown TR, Yan X, Zirkin BR, Jarow JP. Low-dose human chorionic gonadotropin maintains intratesticular testosterone in normal men with testosterone-induced gonadotropin suppression. J Clin Endocrinol Metab. 2005 May;90(5):2595-602. doi: 10.1210/jc.2004-0802. Epub 2005 Feb 15.
PMID: 15713727BACKGROUNDPage ST, Kalhorn TF, Bremner WJ, Anawalt BD, Matsumoto AM, Amory JK. Intratesticular androgens and spermatogenesis during severe gonadotropin suppression induced by male hormonal contraceptive treatment. J Androl. 2007 Sep-Oct;28(5):734-41. doi: 10.2164/jandrol.107.002790. Epub 2007 May 9.
PMID: 17494097RESULT
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
William Bremner, MD
University of Washington
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
Study Record Dates
First Submitted
September 8, 2005
First Posted
September 12, 2005
Study Start
December 1, 2004
Primary Completion
July 1, 2005
Study Completion
July 1, 2005
Last Updated
September 19, 2008
Record last verified: 2008-09