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Showing 1–24 of 25 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: 25 mg Androxal Clear all
Completed Phase 3 Interventional

A Randomized, Double Blind, Placebo-Controlled, Multi-Center Phase III Study in Men With Acquired Hypogonadotropic Hypogonadism to Compare Changes in Testosterone and Sperm Concentration Following Treatment With 12.5 mg or 25 mg Androxal or AndroGel 1.62%

NCT01993225
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Androxal 12.5 mg/25 mg, Placebo Capsules, AndroGel 1.62%, Placebo Gel
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 60 Years · Male only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
9
States / cities
Birmingham, Alabama • Mobile, Alabama • Evanston, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2014 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 2 Interventional

A One Year Open Label Study for the Treatment of Hypogonadism (Low Testosterone) in Men Who Have Completed ZA-203

NCT01386567
View directory record Official record
Conditions
Hypogonadism, Low Testosterone
Interventions
Androxal (enclomiphene citrate), Testim (topical testosterone)
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
21 Years to 65 Years · Male only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
8
States / cities
Garden Grove, California • Sacramento, California • San Diego, California + 2 more
Source: ClinicalTrials.gov public record
Updated May 16, 2013 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 2 Interventional

Clomid in Men With Low Testosterone With and Without Prior Treatment

NCT01904734
View directory record Official record
Conditions
Hypogonadism, Male
Interventions
Clomiphene
Drug
Lead sponsor
Phoenix VA Health Care System
Federal
Eligibility
30 Years to 70 Years · Male only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 9, 2021 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 3 Interventional Results available

Phase III Study to Evaluate Morning Testosterone Normalization in Overweight Men With Secondary Hypogonadism

NCT01739595
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
enclomiphene citrate, Placebo
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 60 Years · Male only
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
13
States / cities
Mobile, Alabama • Little Rock, Arkansas • Rancho Cucamonga, California + 10 more
Source: ClinicalTrials.gov public record
Updated May 26, 2015 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 3 Interventional

A Randomized, Double Blind, Placebo-Controlled, Multi-Center Phase III Study in Men With Acquired Hypogonadotropic Hypogonadism to Compare Changes in Testosterone and Sperm Concentration Following Treatment With 12.5 mg or 25 mg Androxal or AndroGel 1.62%

NCT01993212
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Androxal 12.5 mg or 25 mg, AndroGel 1.62%, Placebo Capsules, Placebo Gel
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 60 Years · Male only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
8
States / cities
Jacksonville, Florida • Albany, New York • Raleigh, North Carolina + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2014 · Synced Sep 9, 2026, 6:14 AM EDT
Withdrawn Phase 2Phase 3 Interventional

Androxal in Male Infertility

NCT02160704
View directory record Official record
Conditions
Infertility
Interventions
Enclomiphene citrate, Placebo
Drug · Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 35 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 10, 2019 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Comparison of Two Formulations of Androxal

NCT01984398
View directory record Official record
Conditions
Bioequivalence
Interventions
12.5 mg Androxal Formulation A, 12.5 mg Androxal Formulation B, 25 mg Androxal Formulation A, 25 mg Androxal Formulation B
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 60 Years · Male only
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated May 5, 2019 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Open-Label Study to Evaluate the Effect of Age Upon the Pharmacokinetics of Androxal

NCT02169804
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Androxal 25 mg
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years and older · Male only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Sep 30, 2014 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 2 Interventional Results available

A Multi-Center Study in Men With Acquired Hypogonadotropic Hypogonadism to Compare Changes in Body Composition and Metabolic Parameters With Diet and Exercise in Conjunction With Treatment With 12.5 mg or 25 mg Enclomiphene

NCT02651688
View directory record Official record
Conditions
Acquired Hypogonadotropic Hypogonadism, Obesity
Interventions
Placebo, Enclomiphene
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 60 Years · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
5
States / cities
Albany, New York • Garden City, New York • Providence, Rhode Island + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2019 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 3 Interventional Results available

Phase III Study to Evaluated Morning Testosterone Normalization in Men With Secondary Hypogonadism

NCT01532414
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Androxal, Placebo
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 60 Years · Male only
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
23
States / cities
Mobile, Alabama • Little Rock, Arkansas • Garden Grove, California + 19 more
Source: ClinicalTrials.gov public record
Updated May 26, 2015 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of the Pharmacokinetics and Safety of Androxal in Male Subjects With Impaired Hepatic Function

NCT01923870
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Androxal 25 mg
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 70 Years · Male only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 23, 2014 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of Pharmacokinetic and Safety Profile of Androxal in Male Subjects With Impaired Renal Function

NCT01923857
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Androxal 25 mg
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 80 Years · Male only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
2
States / cities
Miami, Florida • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 10, 2014 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Open-Label, Single-Dose Study to Assess the Absorption, Metabolism, Excretion, and Mass Balance of Radiolabeled Androxal in Healthy Male Subjects After Oral Administration

NCT02274181
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Androxal
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
19 Years to 60 Years · Male only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Mar 11, 2015 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 2 Interventional Results available

Normalization of Morning Testosterone Levels in Men With Secondary Hypogonadism

NCT01270841
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Placebo, topical testosterone, Androxal
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
21 Years to 65 Years · Male only
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
18
States / cities
Garden Grove, California • Sacramento, California • San Diego, California + 11 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2014 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 3 Interventional

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

NCT00962637
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Androxal, AndroGel, Placebo
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 68 Years · Male only
Enrollment
194 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
18
States / cities
Birmingham, Alabama • Huntsville, Alabama • Carmichael, California + 14 more
Source: ClinicalTrials.gov public record
Updated Feb 10, 2010 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 3 Interventional Results available

Safety Study of Enclomiphene Citrate in the Treatment of Men With Secondary Hypogonadism

NCT01534208
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Androxal
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
499 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
31
States / cities
Glendale, Arizona • Phoenix, Arizona • Little Rock, Arkansas + 24 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2014 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 2 Interventional Results available

To Evaluate Sperm Parameters in Men With Secondary Hypogonadism Previously Treated With Topical Testosterone

NCT00706719
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
25 mg Androxal, Testim 1%
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
21 Years to 60 Years · Male only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
2
States / cities
New York, New York • Purchase, New York
Source: ClinicalTrials.gov public record
Updated Aug 18, 2015 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 2 Interventional Results available

The Effect on Androxal Versus Androgel on Morning Testosterone in Men With Secondary Hypogonadism (Low Testosterone)

NCT01386606
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Androxal (enclomiphene citrate), Testosterone
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
2
States / cities
Houston, Texas • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Sep 22, 2015 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 2 Interventional Results available

Clomiphene Citrate for the Treatment of Low Testosterone Associated With Chronic Opioid Pain Medication Administration

NCT01880086
View directory record Official record
Conditions
Hypogonadism, Opioid-Related Disorders, Male Infertility
Interventions
Clomiphene citrate, Placebo
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 16, 2018 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 2 Interventional Results available

Study to Evaluate the Efficacy of Androxal in Controlling Blood Glucose in Men With Type-2 Diabetes Mellitus

NCT01191320
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Secondary Hypogonadism
Interventions
Placebo, Androxal
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
20 Years to 80 Years · Male only
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
18
States / cities
Garden Grove, California • Sacramento, California • Torrance, California + 11 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2014 · Synced Sep 9, 2026, 6:14 AM EDT
Terminated Not applicable Interventional Results available

Progestin-induced Endometrial Shedding in PCOS (The PIES in PCOS Study)

NCT01718444
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Infertility
Interventions
Progestin, Clomiphene Citrate
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 28, 2020 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 3 Interventional

Assessment of the Effects of Enclomiphene Citrate on Bone Mineral Density in Men With Secondary Hypogonadism

NCT01619683
View directory record Official record
Conditions
Effect of Treatment on Bone Mineral Density
Interventions
enclomiphene citrate, Placebo
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 60 Years · Male only
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
17
States / cities
Mesa, Arizona • Phoenix, Arizona • Tempe, Arizona + 14 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2014 · Synced Sep 9, 2026, 6:14 AM EDT
Completed Phase 3 Interventional

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

NCT01067365
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Androxal
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 68 Years · Male only
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
18
States / cities
Birmingham, Alabama • Huntsville, Alabama • Carmichael, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2014 · Synced Sep 9, 2026, 6:14 AM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Pharmacokinetic Evaluation of Serum Testosterone Concentrations After Administration of Clomiphene Citrate

NCT05096169
View directory record Official record
Conditions
Testosterone Deficiency
Interventions
Clomiphene Citrate 25mg, Clomiphene Citrate 50mg
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
21 Years to 45 Years · Male only
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 3, 2024 · Synced Sep 9, 2026, 6:14 AM EDT