Normalization of Morning Testosterone Levels in Men With Secondary Hypogonadism

Repros Therapeutics

Status and phase: Completed; Phase 2

Conditions: Secondary Hypogonadism

Treatments: Drug: topical testosterone; Drug: Androxal; Drug: Placebo

Study type: Interventional

Funder types: Industry

Identifiers

NCT01270841

ZA-203

Details and patient eligibility

About

The Purpose of the study is to determine the effects of Androxal on morning testosterone and reproductive status in men with secondary hypogonadism(confirmed morning Testosterone less than 250 ng/dL), compared to changes with placebo, or Testim (topical testosterone). The effects of Testim versus placebo on reproductive status will also be examined. Study subjects must not be currently using a topical testosterone.

Full description

This study is a phase IIb, 4 arm study with three month active dosing period. Three of the four treatment groups will be randomized to either Androxal or placebo in a double-blind fashion, and the fourth treatment group will receive open-label Testim. The doses of Androxal in the blinded portion of the study will be 12.5 mg and 25 mg, in capsule form.

Enrollment: 83 patients

Sex: Male

Ages: 21 to 65 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Healthy males between the ages of 21 and 65 years of age
• 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 and confirmed morning testosterone <250ng/dL (two assessments at least 10 days apart)
• Ability to complete the study in compliance with the protocol
• Ability to understand and provide written informed consent
• Agreement to use double barrier contraception if with a fertile female partner
• Agreement to provide a semen sample in the clinic

Exclusion criteria

• Use of an injectable, oral, topical, or subcutaneous pelleted testosterone within 6 months prior to study
• 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 but exhibiting glycemic control will be allowed into the study
• A hematocrit >50% or a hemoglobin >17 g/dL
• Clinically significant abnormal findings on screening examination
• 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)
• 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 hyperprolactinemia with or without a tumor
• Chronic use of medications use such as glucocorticoids
• Subjects with cystic fibrosis (mutation of the CFTR gene)
• Subjects unable to provide a semen sample in the clinic
• Subject has a BMI >36 kg/m2

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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83 participants in 4 patient groups, including a placebo group

Placebo

Placebo Comparator group

Description:

Placebo

Treatment:

Drug: Placebo

Testim (topical testosterone)

Active Comparator group

Description:

Testim (topical testosterone)

Treatment:

Drug: topical testosterone

Androxal 12.5 mg

Experimental group

Description:

Androxal 12.5 mg/day

Treatment:

Drug: Androxal

Androxal 25 mg

Experimental group

Description:

Androxal 25 mg/day

Treatment:

Drug: Androxal