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CompletedNCT00962637Updated Feb 11, 2010

Study to Evaluate the Safety and Efficacy of Androxal™ Treatment in Men With Secondary Hypogonadism

A Phase 3 interventional study of Androxal and Androxal in Secondary Hypogonadism, sponsored by Repros Therapeutics Inc.. Completed at 18 sites in United States. Open to male participants aged 18 Years to 68 Years. Per ClinicalTrials.gov, last updated 2010-02-11.

Sponsored by Repros Therapeutics Inc. · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
194
Allocation
Randomized
Ages
18 Years to 68 Years
Sex
Male
01

Study summary

Approximately 4 to 5 million men in the U.S. are testosterone-deficient. Enclomiphene (trans-clomiphene) citrate (Androxal) was evaluated to determine if Androxal increased serum testosterone levels in men with secondary hypogonadism. Subjects were randomly assigned to 1 of 4 treatments groups. Appropriate amounts of medications were dispensed at each visit. Subjects took their medications orally or by rubbing it onto the skin (depending on the treatment assignment) once daily for up to 6 months. Treatment visits occurred at approximately 4-week intervals for Months 1, 2, and 3 and then at 6-week intervals for Months 4, 5, and 6.

02

Conditions studied

  • Secondary Hypogonadism

Keywords

  • Secondary Hypogonadism
03

In context

Neoplasm Metastasis

3,517 studies on the registry are indexed under Neoplasm Metastasis; 885 are open to participants now.

This study's enrollment of 194 is above the median of 54 across 2,767 interventional studies indexed under Neoplasm Metastasis.

Browse Neoplasm Metastasis studies →

Lead sponsor

Repros Therapeutics Inc. is the lead sponsor of 57 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 68 Years
Sexes eligible
Male
Accepts healthy volunteers
No

Inclusion criteria

  • Total serum testosterone concentrations \< 300 ng/dL at baseline

Exclusion criteria

Exclusion Criteria:

  • Presence or history of prostate cancer
  • Elevated PSA > 3.5 ng/mL

Additional inclusion and exclusion criteria may apply.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
194 participants (actual)

Study arms

  • Experimental
    1

    Androxal™ 12.5 mg

    Drug: Androxal

  • Experimental
    2

    Androxal™ 25 mg

    Drug: Androxal

  • Active comparator
    3

    AndroGel®

    Drug: AndroGel

  • Placebo comparator
    4

    Placebo

    Drug: Placebo

Interventions

  • DrugAndroxal

    12.5 mg once daily

    Also known as: Enclomiphene citrate

  • DrugAndroxal

    25 mg once daily

    Also known as: Enclomiphene citrate

  • DrugAndroGel

    5 g applied topically daily. The subject was to return to the clinic every 2 weeks for the first 2 months to monitor serum testosterone levels. If testosterone concentration remained below the normal level, the dose of AndroGel® could have been increased to 10 g and then to 15 g according to the guidance provided in the product package insert.

  • DrugPlacebo

    1 capsule daily

06

What researchers measure

Primary outcomes

  1. Evaluate the safety of Androxal™ administered in men with secondary hypogonadism

    Time frame: Six months

Secondary outcomes

  1. Demonstrate that treatment of men with secondary hypogonadism with Androxal™ was non-inferior to treatment with the active control, AndroGel®

    Time frame: Six months

07

Study locations

18 sites
  • Alabama Clinical Therapeutics, LLC
    Birmingham,, Alabama 35235, United States
  • Medical Affiliated Research Center, Inc.
    Huntsville, Alabama 35801, United States
  • Northern California Research Corp.
    Carmichael, California 95608, United States
  • Prime-Care Clinical Research
    Mission Viejo, California 92691, United States
  • Harbor-UCLA Medical Center
    Torrance, California 90502, United States
  • Chase Medical Research, LLC
    Waterbury, Connecticut 06708, United States
  • Southeastern Research Group, Inc.
    Tallahassee, Florida 32308, United States
  • Northeast Indiana Research, LLC
    Fort Wayne, Indiana 46825, United States
  • Commonwealth Biomedical Research
    Madisonville, Kentucky 42431, United States
  • The Center for Sexual Medicine at Sheppard Pratt
    Baltimore, Maryland 21285, United States
  • Office of Keith Pierce, MD
    Livonia, Michigan 48152, United States
  • Office of Michael Mall, MD
    Las Vegas, Nevada 89109, United States
  • Office of Stephen Miller, MD
    Las Vegas, Nevada 89144, United States
  • Advanced Biomedical Research, Inc.
    Hackensack, New Jersey 07601, United States
  • Office of Gary S. Karlin
    Lawrenceville, New Jersey 08648, United States
  • Medial Research Associates of Nashville
    Nashville, Tennessee 37203, United States
  • Urology San Antonio Research, PA
    San Antonio, Texas 78229, United States
  • Salt Lake Research
    Salt Lake City, Utah 84107, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 11, 2010, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00962637
Lead sponsor
Repros Therapeutics Inc.
First posted
Aug 20, 2009
Start date
Mar 2006
Primary completion
May 2007
Completion
May 2007
Last update
Feb 11, 2010

Study contacts

Andre van As, MD, PhD
study director · Repros Therapeutics Inc.

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2010. You cannot join it, but the record below documents what was studied.

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