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ClinicalTrials.gov public records Last synced Oct 5, 2026, 5:36 AM EDT

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Showing 1–14 of 14 matching trials from the live ClinicalTrials.gov search.
Filters: Sponsor: Clarus Therapeutics, Inc. Clear all
Completed Phase 2 Interventional Results available

Pilot Pharmacokinetic Study of Oral Testosterone Ester Formulations in Hypogonadal Men

NCT02697188
View directory record Official record
Conditions
Hypogonadism
Interventions
Testosterone undecanoate, Testosterone enanthate
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
2
States / cities
Los Angeles, California • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Nov 1, 2018 · Synced Oct 5, 2026, 5:36 AM EDT
Completed Phase 2 Interventional Results available

Pharmacokinetic Study to Determine Time to Steady-state

NCT00911586
View directory record Official record
Conditions
Male Hypogonadism, Primary Hypogonadism, Secondary Hypogonadism
Interventions
Testosterone undecanoate
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Dec 11, 2020 · Synced Oct 5, 2026, 5:36 AM EDT
Completed Phase 2 Interventional Results available

Study to Determine the Effect of Food on the Absorption of an Oral Testosterone Undecanoate Formulation

NCT00924612
View directory record Official record
Conditions
Male Hypogonadism
Interventions
Oral testosterone undecanoate (containing 300 mg T)
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Dec 2, 2020 · Synced Oct 5, 2026, 5:36 AM EDT
Completed Phase 2 Interventional Results available

Pharmacokinetic Study of Oral Testosterone (T) Ester Formulations in Hypogonadal Men

NCT00695110
View directory record Official record
Conditions
Hypogonadism
Interventions
Oral testosterone undecanoate (TU) (300 mg T equivalents/dose), Oral testosterone undecanoate (TU) combined with testosterone enanthate (TE) (400 mg T equivalents/dose), Oral testosterone undecanoate (TU) (200 mg T equivalents/dose with and without food), Oral testosterone undecanoate (TU) combined with testosterone enanthate (TE) (300 mg T equivalents/dose)
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 68 Years · Male only
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
4
States / cities
Birmingham, Alabama • Los Angeles, California • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 25, 2021 · Synced Oct 5, 2026, 5:36 AM EDT
Completed Phase 4 Interventional Results available

Patient Satisfaction After Switching to Oral Testosterone Undecanoate

NCT04983940
View directory record Official record
Conditions
Testosterone Deficiency
Interventions
Jatenzo
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 14, 2023 · Synced Oct 5, 2026, 5:36 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Phlebotomy Study of Testosterone Undecanoate

NCT02670343
View directory record Official record
Conditions
Hypogonadism
Interventions
Oral Testosterone Undecanoate
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Mar 9, 2018 · Synced Oct 5, 2026, 5:36 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Assessment of Blood From Men Receiving Oral TU in Various Collection Tubes

NCT03973840
View directory record Official record
Conditions
Hypogonadism, Male
Interventions
Testosterone Undecanoate
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Northbrook, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 9, 2019 · Synced Oct 5, 2026, 5:36 AM EDT
Completed Phase 3 Interventional Results available

Open-label, Follow-up Study of Oral Testosterone Undecanoate in Hypogonadal Men

NCT01699178
View directory record Official record
Conditions
Male Hypogonadism
Interventions
Oral testosterone undecanoate, Transdermal testosterone gel (AndroGel)
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
25
States / cities
Birmingham, Alabama • Calera, Alabama • Huntsville, Alabama + 20 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2021 · Synced Oct 5, 2026, 5:36 AM EDT
Completed Phase 3 Interventional Results available

A Study of Oral Testosterone Undecanoate (TU) in Hypogonadal Men

NCT02722278
View directory record Official record
Conditions
Hypogonadism
Interventions
Oral Testosterone Undecanoate, Axiron Testosterone Topical Solution
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Northbrook, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 23, 2018 · Synced Oct 5, 2026, 5:36 AM EDT
Completed Phase 2 Interventional Results available

The Effect of Various Amounts of Fat on PK of Oral Testosterone Undecanoate

NCT02921386
View directory record Official record
Conditions
Hypogonadism
Interventions
Oral Testosterone Undecanoate
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
2
States / cities
Torrance, California • Orlando, Florida
Source: ClinicalTrials.gov public record
Updated May 17, 2018 · Synced Oct 5, 2026, 5:36 AM EDT
Recruiting Phase 2 Interventional

Testosterone Treatment in Men With Chronic Kidney Disease

NCT05249634
View directory record Official record
Conditions
Hypogonadism, Male, Kidney Disease, Chronic
Interventions
Jatenzo Pill
Drug
Lead sponsor
St. Louis University
Other
Eligibility
18 Years to 85 Years · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Oct 5, 2026, 5:36 AM EDT
Active, not recruiting Phase 2 Interventional Results available

Safety and Efficacy of Oral Testosterone Undecanoate Followed by Enzalutamide as Therapy for Men With Metastatic Castrate Resistant Prostate Cancer

NCT05081193
View directory record Official record
Conditions
Prostate Cancer, Castration-resistant Prostate Cancer, Metastatic Castration-resistant Prostate Cancer
Interventions
Testosterone Undecanoate, Enzalutamide
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
2
States / cities
Baltimore, Maryland • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 5, 2026, 5:36 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy Trial of Oral Testosterone Undecanoate (TU) in Hypogonadal Men

NCT01403116
View directory record Official record
Conditions
Male Hypogonadism
Interventions
Oral testosterone undecanoate, topical testosterone gel
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
325 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
25
States / cities
Birmingham, Alabama • Calera, Alabama • Huntsville, Alabama + 20 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2018 · Synced Oct 5, 2026, 5:36 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy Trial of Testosterone Undecanoate

NCT01765179
View directory record Official record
Conditions
Male Hypogonadism
Interventions
Oral testosterone undecanoate
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
27
States / cities
Birmingham, Alabama • Huntsville, Alabama • Glendale, Arizona + 22 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2017 · Synced Oct 5, 2026, 5:36 AM EDT