Secondary Hypogonadism Clinical Trial
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
Verified date | May 2015 |
Source | Repros Therapeutics Inc. |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Food and Drug Administration |
Study type | Interventional |
The purpose of ZA-301 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.
Status | Completed |
Enrollment | 151 |
Est. completion date | March 2013 |
Est. primary completion date | March 2013 |
Accepts healthy volunteers | No |
Gender | Male |
Age group | 18 Years to 60 Years |
Eligibility |
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, 5a-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 |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | Florida Fertility Institute | Clearwater | Florida |
United States | Tampa Bay Medical Research | Clearwater | Florida |
United States | ALL Medical Research | Cooper City | Florida |
United States | Clinical Research of South Florida | Coral Gables | Florida |
United States | Lone Peak Family Medicine | Draper | Utah |
United States | Therafirst Medical Center | Fort Lauderdale | Florida |
United States | SC Clinical Research | Garden Grove | California |
United States | Clinical Research Advantage | Henderson | Nevada |
United States | New Orleans Center for Clinical Research | Knoxville | Tennessee |
United States | Premier Urology Associates | Lawrenceville | New Jersey |
United States | Central Kentucky Research Associates | Lexington | Kentucky |
United States | Baptist Health Center for Clinical Research | Little Rock | Arkansas |
United States | Well Pharma Medical Research Group | Miami | Florida |
United States | Phase One Solutions | Miami Gardens | Florida |
United States | Mission Internal Medicine Group | Mission Viejo | California |
United States | Coastal Clinical Research | Mobile | Alabama |
United States | Coastal Carolina Research Center | Mount Pleasant | South Carolina |
United States | Rancho Cucamonga Clinical Trials | Rancho Cucamonga | California |
United States | Rochester Clinical Research | Rochester | New York |
United States | San Diego Sexual Medicine | San Diego | California |
United States | Meridien Research | St. Petersburg | Florida |
United States | West Coast Clinical Research | Tarzana | California |
United States | Granger Medical Clinic | West Valley City | Utah |
Lead Sponsor | Collaborator |
---|---|
Repros Therapeutics Inc. |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Proportion (Percentage) of Androxal Treated Subjects With Testosterone in the Normal Range | Proportion of pooled Androxal subjects with average serum concentration (Cavg) for T in the normal range (300 - 1040 ng/dL) after 12 weeks of treatment. Cavg will be 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 co-primary endpoint based on the Cavg for testosterone has 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. |
3 months | No |
Primary | Subjects With 50% or Greater Decrease in Sperm Concentration Comparison of Proportion of Subjects With 50% or Greater Decrease in Sperm | 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. |
3 months | Yes |
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