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

June 25, 2021 updated by: Clarus Therapeutics, Inc.

Open-Label Study of Oral Testosterone Undecanoate (TU) in Hypogonadal Men

The purpose of this one year extension (follow-up) study is to gather additional safety data in hypogonadal men treated with oral TU or AndroGel who have completed the 12-month Phase III study CLAR-09007.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This is the long-term extension of Study CLAR-09007, which like Study CLAR-09007, is an open-label study. This study contained an arm to evaluate the oral TU formulation as well as a comparator arm of the market-leading transdermal T-gel formulation. The comparator arm was included in the Phase III study and in this extension study to allow a general evaluation of comparative safety. Subjects randomized to oral TU in the Phase III study were continued on oral TU in the extension, and those who completed this 12-month Phase IV study have been followed for a total of 2 years of oral TU therapy. Likewise, subjects randomized to transdermal T-gel in the Phase III study were continued on T-gel in the extension, and those who completed this 12-month Phase IV study have been followed for a total of 2 years of T gel therapy. This 2-year period of therapy and assessments was to provide a long-term view of the safety of oral TU and the stability of the T replacement.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
182

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Germany
      • Bonn, Germany, 53105
        • University of Bonn, Clinic for Dermatology and Allergy
      • Halle, Germany, 06120
        • University of Halle, Center for Reproduction and Andrology
      • Leipzig, Germany, 04105
        • Praxis Dr. Szymula
      • Markkleeberg, Germany, 04416
        • Praxis Dr. Schulze
      • Muenster, Germany, 48149
        • University of Muenster, Center for Reproduction and Andrology
  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35235
        • Alabama Internal Medicine, PC
      • Birmingham, Alabama, United States, 35235
        • Alabama Clinical Therapeutics, Inc.
      • Calera, Alabama, United States, 35040
        • Alabama Clinical Therapeutics
      • Huntsville, Alabama, United States, 35801
        • Medical Affiliated Research Center, Inc
    • Arizona
      • Tucson, Arizona, United States, 85712
        • Quality of Life Medical and Research Centers, LLC
    • California
      • Burbank, California, United States, 91505
        • Providence Clinical Research
      • Laguna Hills, California, United States, 92653
        • South Orange County Endocrinology
      • Los Angeles, California, United States, 90048
        • Tower Urology
      • Los Angeles, California, United States, 90095
        • David Geffen School of Medicine, UCLA
      • Torrance, California, United States, 90502
        • Harbor-UCLA Medical Center, LA Biomedical Research Institute
    • Connecticut
      • Middlebury, Connecticut, United States, 06762
        • Connecticut Clinical Research Center/ConnecTrials
      • New Haven, Connecticut, United States, 06511
        • University of CT School of Medicine
    • Florida
      • Aventura, Florida, United States, 33180
        • South Florida Medical Research
    • Kentucky
      • Louisville, Kentucky, United States, 40202
        • University of Louisville
    • Maryland
      • Baltimore, Maryland, United States, 21287
        • Johns Hopkins University
    • Massachusetts
      • Boston, Massachusetts, United States, 02118
        • Boston University School of Medicine
    • New York
      • Brooklyn, New York, United States, 11235
        • Maimonides Medical Center
      • Great Neck, New York, United States, 11021
        • Bruce R. Gilbert, MD, PhD
      • New York, New York, United States, 10016
        • University Urology Associates
      • Purchase, New York, United States, 10577
        • Michael A. Werner
    • Oregon
      • Medford, Oregon, United States, 97504
        • Sunstone Medical Research
    • Pennsylvania
      • Bala-Cynwyd, Pennsylvania, United States, 19004
        • Urologic Consultants of Southeast Pennsylvania
    • Texas
      • Carrollton, Texas, United States, 75010
        • Research Across America
      • Dallas, Texas, United States, 75234
        • Research Across America
    • Washington
      • Seattle, Washington, United States, 98195
        • University of Washington

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  1. Subjects were to have completed Study CLAR-09007.
  2. Subjects were to have adequate venous access in the left or right arm to allow collection of a number of blood samples via a venous cannula.
  3. Subjects were required to remain off all forms of T except for study medication throughout the entire study.
  4. Subjects voluntarily gave written informed consent to participate in this study.

Subjects meeting any of the following criteria were not eligible for participation in this study:

  1. Significant intercurrent disease of any type, in particular liver, kidney, uncontrolled or poorly controlled heart disease, or psychiatric illness developed during the Phase III study that would, in the opinion of the Investigator, require exclusion from this study.
  2. Untreated, severe obstructive sleep apnea (diagnosed during previous Phase III study).
  3. Serum transaminases >2 times upper limit of normal (ULN), serum bilirubin >2.0 mg/dL and serum creatinine >2.0 mg/dL at the final visit for Study CLAR 09007.
  4. Abnormal prostate digital rectal examination (palpable nodule[s]) or elevated PSA (serum PSA >4 ng/mL) at the final visit for Study CLAR-09007.
  5. Use of dietary supplement saw palmetto or phytoestrogens and use of any dietary supplements that may increase serum T, such as androstenedione or dehydroepiandrosterone (DHEA).
  6. Known malabsorption syndrome and/or current treatment with oral lipase inhibitors (e.g., orlistat [Xenical]) and bile acid-binding resins (e.g., cholestyramine [Questran], colestipol [Colestid]).
  7. Poor compliers with study medication, study procedures, or study visits in Study CLAR 09007.
  8. Concomitant use of antiandrogens, estrogens, potent oral CYP3A4 inducers (e.g., barbiturates, glucocorticoids [pharmacologic doses of glucocorticoids for replacement therapy were not exclusionary]) and potent CYP3A4 inhibitors (e.g., human immunodeficiency virus [HIV] antivirals [indinavir, nelfinavir, ritonavir, saquinavir, delaviridine], amiodarone, azithromycin, ciprofloxacin, ketoconazole). (Note: Short-term ciprofloxacin administration completed more than 7 days prior to study visits was not exclusionary during the study.)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Oral testosterone undecanoate
Oral testosterone undecanoate; continue dose from previous Phase III trial; 100-300 mg T (as TU), BID, for 12 months.
Drug: Oral testosterone undecanoate
Total daily dose of T = 200 mg T (as 316 mg TU) to 600 mg T (as 948 mg TU), taken as 100 mg to 300 mg T BID
Other Names:
  • Oral TU
Active Comparator: Transdermal testosterone gel (AndroGel)
Transdermal testosterone gel; continue dose from previous Phase III trial, 2.5-10 g/applied once daily for 12 months
Drug: Transdermal testosterone gel (AndroGel)
Total daily dose of T = 2.5 to 10 g of gel (25 mg to 100 mg T) QD
Other Names:
  • AndroGel

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Absolute Change From Baseline in T Cholesterol
Time Frame: Approximately 365 days
Long-term safety profile of oral TU product compared with AndroGel based on absolute change from primary baseline based on Total Cholesterol, HDL, LDL, hemoglobin, hematocrit and prostate volume.
Approximately 365 days
Absolute Change From Baseline in HDL
Time Frame: Approximately 365 days
Long-term safety profile of oral TU product compared with AndroGel based on absolute change from primary baseline based on Total Cholesterol, HDL, LDL, hemoglobin, hematocrit and prostate volume.
Approximately 365 days
Absolute Change From Baseline in LDL
Time Frame: Approximately 365 days
Long-term safety profile of oral TU product compared with AndroGel based on absolute change from primary baseline based on Total Cholesterol, HDL, LDL, hemoglobin, hematocrit and prostate volume.
Approximately 365 days
Absolute Change From Baseline in Hgb
Time Frame: Approximately 365 days
Long-term safety profile of oral TU product compared with AndroGel based on absolute change from primary baseline based on Total Cholesterol, HDL, LDL, hemoglobin, hematocrit and prostate volume.
Approximately 365 days
Absolute Change From Baseline in Hct
Time Frame: Approximately 365 days
Long-term safety profile of oral TU product compared with AndroGel based on absolute change from primary baseline based on Total Cholesterol, HDL, LDL, hemoglobin, hematocrit and prostate volume.
Approximately 365 days
Absolute Change From Baseline in Prostate Volume
Time Frame: Approximately 365 days
Long-term safety profile of oral TU product compared with AndroGel based on absolute change from primary baseline based on Total Cholesterol, HDL, LDL, hemoglobin, hematocrit and prostate volume.
Approximately 365 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Clarus Therapeutics, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Ronald Swerdloff, MD, University of California, Los Angeles

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 1, 2012

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
April 1, 2014

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2014

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 5, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 1, 2012

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 3, 2012

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 28, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 25, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2021

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CLAR-12010

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

IPD Plan Description

Individual Participant data shared with associated investigational sites only.

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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