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

Primary Purpose

Secondary Hypogonadism

Status
Completed
Phase
Phase 3
Locations
United States
Study Type
Interventional
Intervention
enclomiphene citrate
Placebo
Sponsored by
Repros Therapeutics Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Secondary Hypogonadism

Eligibility Criteria

18 Years - 60 Years (Adult)MaleDoes not accept healthy volunteers

Inclusion Criteria:

  1. Overweight (BMI 25 to 42 kg/m2 inclusive) males age 18 to 60 inclusive
  2. All clinical laboratory tests within normal ranges (any clinically significant deviation of laboratory results will require approval of sponsor)
  3. Previously or concurrently diagnosed as having secondary hypogonadism characterized as having 2 consecutive morning testosterone assessments < 300ng/dL, one of which must be confirmed at Baseline.
  4. LH < 9.4 mIU/mL (at Visit 1 only)
  5. Sperm count ≥ 15 million per milliliter (assessed twice at least 48 hours apart)
  6. Ability to complete the study in compliance with the protocol
  7. Ability to understand and provide written informed consent
  8. Agreement to provide a total of up to 6 semen sample in a sponsor-approved clinic on up to 6 separate occasions.

Exclusion Criteria:

  1. Any prior use of testosterone treatments within the last 6 months
  2. Use of spironolactone, cimetidine, Clomid, 5α-reductase inhibitors, hCG, androgen, estrogen, anabolic steroid, DHEA, or herbal hormone products during the study
  3. Use of Clomid in the past year
  4. Uncontrolled hypertension or diabetes mellitus based on the Investigator's assessment at baseline. Subjects treated for Type II diabetes will be allowed into the study. Newly diagnosed diabetics need to be treated for at least 48 hours before being enrolled in the study.
  5. Clinically significant abnormal findings at Screening (Visit 1) or Baseline, based on the Investigator's assessment
  6. A hematocrit >54% or a hemoglobin >17 g/dL (sponsor may approve enrollment of subjects with hemoglobin up to 17.5 g/dL if the subject is at a location with a high elevation)
  7. Use of an investigational drug or product, or participation in a drug or medical device research study within 30 days prior to receiving study medication.
  8. Known hypersensitivity to Clomid
  9. Symptomatic cataracts (nuclear sclerosis cataract or cortical cataract grade > 2 based on 0-4 scale or any trace of posterior subcapsular cataract)
  10. Abnormal fundoscopy exam such as central retinal vein occlusion
  11. Any condition which in the opinion of the investigator would interfere with the participant's ability to provide informed consent, comply with study instructions, possibly confound interpretation of study results, or endanger the participant if he took part in the study
  12. Irreversibly infertile or compromised fertility (cryptorchism, Kallman Syndrome, primary hypogonadism, vasectomy, or tumors of the pituitary)
  13. Current or history of breast cancer
  14. Current or history of prostate cancer or a suspicion of prostate disease unless ruled out by prostate biopsy, or a PSA>3.6
  15. Presence or history of known hyperprolactinemia with or without a tumor
  16. Chronic use of medications such as glucocorticoids
  17. History of drug abuse or chronic narcotic use including methadone
  18. A recent history of alcoholism or illegal substance or steroid abuse (<2 years) or presence of moderate alcohol use (>21 drinks per week)
  19. Subjects with known history of HIV and/or Hepatitis C
  20. Subjects with end stage renal disease
  21. History of liver disease (including malignancy) or a confirmed AST or ALT >3 times the upper limit of normal
  22. History of myocardial infarction, unstable angina, symptomatic heart failure, ventricular dysrhythmia or know history of QTc interval prolongation
  23. History of cerebrovascular disease
  24. History of venous thromboembolic disease (e.g. deep vein thrombosis or pulmonary embolism)
  25. History of erythrocytosis or polycythemia
  26. Subjects with cystic fibrosis (mutation of the CFTR gene)
  27. Subjects unable to provide a semen sample in a sponsor-approved clinic
  28. Enrollment in a previous Androxal study

Sites / Locations

  • Coastal Clinical Research
  • Baptist Health Center for Clinical Research
  • Rancho Cucamonga Clinical Trials
  • Meridien Research
  • All Medical Research
  • Clinical Research of South Florida
  • Phase One Solutions
  • Central Kentucky Research Associates
  • Rochester Clinical Research
  • Coastal Carolina Research Center
  • New Orleans Center for Clinical Research
  • Lone Peak Family Medicine
  • Granger Medical Clinic

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Experimental

Placebo Comparator

Arm Label

Androxal 12.5 mg

Androxal 25 mg

Placebo

Arm Description

Androxal (enclomiphene citrate), 12.5 mg oral capsules taken once daily

Androxal (enclomiphene citrate), 25 mg oral capsules taken once daily

Placebo oral capsules taken one time daily

Outcomes

Primary Outcome Measures

Subjects With Testosterone in Normal Range After Treatment
Proportion (percent) of subjects with average serum concentration (Cavg) for T in the normal range (300 - 1040 ng/dL) after 12 weeks of treatment. Cavg was calculated as the numerical average of 24-hour serial testosterone assessments at 0, 1, 2, 3, 4, 6, 8, 12, 16 and 24 hours after dosing. If the lower limit of the 95% confidence interval for the Androxal treatment group at Week 12 is at least 67%, then the coprimary endpoint based on the Cavg for testosterone would have been achieved. FDA specified primary endpoint did not include comparison to placebo, thus the proportion of placebo subjects with average serum concentration (Cavg) for T in the normal range (300 - 1040 ng/dL) after 12 weeks of treatment was not calculated.
Change in Sperm Concentration
Proportion of subjects with a 50% or greater decrease in sperm concentration from baseline after 12 weeks of treatment in Androxal treated subjects to placebo. The difference between the proportions (placebo minus Androxal) and corresponding 95% confidence interval was determined and compared to the equivalence limit of -20%. If the lower limit of the 95% confidence interval was greater than -20%, then Androxal would be concluded to be non-inferior to placebo in causing a 50% reduction in sperm concentrations.

Secondary Outcome Measures

Full Information

First Posted
November 29, 2012
Last Updated
May 7, 2015
Sponsor
Repros Therapeutics Inc.
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1. Study Identification

Unique Protocol Identification Number
NCT01739595
Brief Title
Phase III Study to Evaluate Morning Testosterone Normalization in Overweight Men With Secondary Hypogonadism
Official Title
A Randomized, Double Blind, Placebo Controlled Multi-Center Phase III Study to Evaluate Normalization of Morning Testosterone Levels in Overweight Men With Acquired Hypogonadotropic Hypogonadism and Normal Sperm Concentration
Study Type
Interventional

2. Study Status

Record Verification Date
May 2015
Overall Recruitment Status
Completed
Study Start Date
November 2012 (undefined)
Primary Completion Date
September 2013 (Actual)
Study Completion Date
September 2013 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Repros Therapeutics Inc.

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
The purpose of ZA-302 is to determine the effects of Androxal on morning testosterone and reproductive status in younger overweight men with acquired hypogonadotropic hypogonadism (confirmed morning T<300 ng/dL) and normal sperm concentration, compared to changes with placebo. Subjects must not have previously been treated with testosterone products within the last 6 months.
Detailed Description
Protocol ZA-302 is a randomized, double-blind, placebo-controlled multi-center Phase 3 study to evaluate normalization of morning testosterone levels in overweight men with acquired hypogonadotropic hypogonadism and normal baseline sperm concentrations. The study requires 10 to 12 clinic visits (2 for eye exams), and is approximately 4 to 5½ months in duration. Subjects will be treated for 12-18 weeks. At Visit 3 (Week 6) subjects who do not achieve morning T values ≥300 ng/dL will be up-titrated to 25 mg. Placebo subjects may be sham titrated. Up-titrated subjects will receive an additional 6 weeks of treatment (18 weeks total). A schedule of procedures and assessments is displayed in Section 4. The study will enroll up to 152 male subjects, up to 114 randomized to treatment with Androxal and up to 38 randomized to placebo, in a 3:1 ratio. Subjects must not have used any prior testosterone treatments within the last 6 months. Eligible subjects must have 2 consecutive assessments of morning T below 300 ng/dL and LH below 9.4 mIU/mL. They will provide 2 sperm samples at baseline, at least 2 days apart, another 2 after 12 weeks of treatment, and up-titrated subjects will provide an additional 2 samples at the end of treatment. After 12 weeks of treatment (V5) all subjects will undergo serial T assessment for determination of the Cavg. Safety assessments will include collection of adverse events, eye examinations, physical examinations and clinical laboratory assessments.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Secondary Hypogonadism

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
181 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Androxal 12.5 mg
Arm Type
Experimental
Arm Description
Androxal (enclomiphene citrate), 12.5 mg oral capsules taken once daily
Arm Title
Androxal 25 mg
Arm Type
Experimental
Arm Description
Androxal (enclomiphene citrate), 25 mg oral capsules taken once daily
Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
Placebo oral capsules taken one time daily
Intervention Type
Drug
Intervention Name(s)
enclomiphene citrate
Other Intervention Name(s)
Androxal
Intervention Description
oral, capsules, taken one time daily, for 3 months
Intervention Type
Drug
Intervention Name(s)
Placebo
Other Intervention Name(s)
Dummy
Intervention Description
Oral capsule taken one time daily for 3 months
Primary Outcome Measure Information:
Title
Subjects With Testosterone in Normal Range After Treatment
Description
Proportion (percent) of subjects with average serum concentration (Cavg) for T in the normal range (300 - 1040 ng/dL) after 12 weeks of treatment. Cavg was calculated as the numerical average of 24-hour serial testosterone assessments at 0, 1, 2, 3, 4, 6, 8, 12, 16 and 24 hours after dosing. If the lower limit of the 95% confidence interval for the Androxal treatment group at Week 12 is at least 67%, then the coprimary endpoint based on the Cavg for testosterone would have been achieved. FDA specified primary endpoint did not include comparison to placebo, thus the proportion of placebo subjects with average serum concentration (Cavg) for T in the normal range (300 - 1040 ng/dL) after 12 weeks of treatment was not calculated.
Time Frame
3 months
Title
Change in Sperm Concentration
Description
Proportion of subjects with a 50% or greater decrease in sperm concentration from baseline after 12 weeks of treatment in Androxal treated subjects to placebo. The difference between the proportions (placebo minus Androxal) and corresponding 95% confidence interval was determined and compared to the equivalence limit of -20%. If the lower limit of the 95% confidence interval was greater than -20%, then Androxal would be concluded to be non-inferior to placebo in causing a 50% reduction in sperm concentrations.
Time Frame
3 months

10. Eligibility

Sex
Male
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
60 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Overweight (BMI 25 to 42 kg/m2 inclusive) males age 18 to 60 inclusive All clinical laboratory tests within normal ranges (any clinically significant deviation of laboratory results will require approval of sponsor) Previously or concurrently diagnosed as having secondary hypogonadism characterized as having 2 consecutive morning testosterone assessments < 300ng/dL, one of which must be confirmed at Baseline. LH < 9.4 mIU/mL (at Visit 1 only) Sperm count ≥ 15 million per milliliter (assessed twice at least 48 hours apart) Ability to complete the study in compliance with the protocol Ability to understand and provide written informed consent Agreement to provide a total of up to 6 semen sample in a sponsor-approved clinic on up to 6 separate occasions. Exclusion Criteria: Any prior use of testosterone treatments within the last 6 months Use of spironolactone, cimetidine, Clomid, 5α-reductase inhibitors, hCG, androgen, estrogen, anabolic steroid, DHEA, or herbal hormone products during the study Use of Clomid in the past year Uncontrolled hypertension or diabetes mellitus based on the Investigator's assessment at baseline. Subjects treated for Type II diabetes will be allowed into the study. Newly diagnosed diabetics need to be treated for at least 48 hours before being enrolled in the study. Clinically significant abnormal findings at Screening (Visit 1) or Baseline, based on the Investigator's assessment A hematocrit >54% or a hemoglobin >17 g/dL (sponsor may approve enrollment of subjects with hemoglobin up to 17.5 g/dL if the subject is at a location with a high elevation) Use of an investigational drug or product, or participation in a drug or medical device research study within 30 days prior to receiving study medication. Known hypersensitivity to Clomid Symptomatic cataracts (nuclear sclerosis cataract or cortical cataract grade > 2 based on 0-4 scale or any trace of posterior subcapsular cataract) Abnormal fundoscopy exam such as central retinal vein occlusion Any condition which in the opinion of the investigator would interfere with the participant's ability to provide informed consent, comply with study instructions, possibly confound interpretation of study results, or endanger the participant if he took part in the study Irreversibly infertile or compromised fertility (cryptorchism, Kallman Syndrome, primary hypogonadism, vasectomy, or tumors of the pituitary) Current or history of breast cancer Current or history of prostate cancer or a suspicion of prostate disease unless ruled out by prostate biopsy, or a PSA>3.6 Presence or history of known hyperprolactinemia with or without a tumor Chronic use of medications such as glucocorticoids History of drug abuse or chronic narcotic use including methadone A recent history of alcoholism or illegal substance or steroid abuse (<2 years) or presence of moderate alcohol use (>21 drinks per week) Subjects with known history of HIV and/or Hepatitis C Subjects with end stage renal disease History of liver disease (including malignancy) or a confirmed AST or ALT >3 times the upper limit of normal History of myocardial infarction, unstable angina, symptomatic heart failure, ventricular dysrhythmia or know history of QTc interval prolongation History of cerebrovascular disease History of venous thromboembolic disease (e.g. deep vein thrombosis or pulmonary embolism) History of erythrocytosis or polycythemia Subjects with cystic fibrosis (mutation of the CFTR gene) Subjects unable to provide a semen sample in a sponsor-approved clinic Enrollment in a previous Androxal study
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Joseph S Podolski
Organizational Affiliation
Repros Therapeutics Inc.
Official's Role
Study Chair
Facility Information:
Facility Name
Coastal Clinical Research
City
Mobile
State/Province
Alabama
ZIP/Postal Code
36608
Country
United States
Facility Name
Baptist Health Center for Clinical Research
City
Little Rock
State/Province
Arkansas
ZIP/Postal Code
72205
Country
United States
Facility Name
Rancho Cucamonga Clinical Trials
City
Rancho Cucamonga
State/Province
California
ZIP/Postal Code
91730
Country
United States
Facility Name
Meridien Research
City
Bradenton
State/Province
Florida
ZIP/Postal Code
34208
Country
United States
Facility Name
All Medical Research
City
Cooper City
State/Province
Florida
ZIP/Postal Code
33024
Country
United States
Facility Name
Clinical Research of South Florida
City
Coral Gables
State/Province
Florida
ZIP/Postal Code
33134
Country
United States
Facility Name
Phase One Solutions
City
Miami Gardens
State/Province
Florida
ZIP/Postal Code
33169
Country
United States
Facility Name
Central Kentucky Research Associates
City
Lexington
State/Province
Kentucky
ZIP/Postal Code
40509
Country
United States
Facility Name
Rochester Clinical Research
City
Rochester
State/Province
New York
ZIP/Postal Code
14609
Country
United States
Facility Name
Coastal Carolina Research Center
City
Mount Pleasant
State/Province
South Carolina
ZIP/Postal Code
29464
Country
United States
Facility Name
New Orleans Center for Clinical Research
City
Knoxville
State/Province
Texas
ZIP/Postal Code
37920
Country
United States
Facility Name
Lone Peak Family Medicine
City
Draper
State/Province
Utah
ZIP/Postal Code
84020
Country
United States
Facility Name
Granger Medical Clinic
City
Riverton
State/Province
Utah
ZIP/Postal Code
84065
Country
United States

12. IPD Sharing Statement

Links:
URL
http://www.reprosrx.com
Description
Sponsor home page

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

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