Testosterone Gel Applied to Women With Pituitary Gland Problems

Condition(s) targeted: Panhypopituitarism

Intervention: Transdermal Testosterone gel (Drug)

Phase: Phase 4

Status: Recruiting

Sponsored by: Charles Drew University of Medicine and Science

Official(s) and/or principal investigator(s):
Theodore C Friedman, M.D., Ph.D., Principal Investigator, Affiliation: Charles R. Drew University

Overall contact:
Erik N Zuckerbraun, M.D., Phone: 310.668.8754, Email: erikzuckerbraun@cdrewu.edu

The principal aim of this study is to evaluate if application of testosterone gel leads to improvement in measures of sexual function, thinking ability and quality of life in women with dysfunction of the pituitary gland. A secondary purpose is to determine the effects of testosterone replacement on body composition and muscle function and strength.

Official title: Physiologic Testosterone Replacement in Women With Hypopituitarism

Study design: Treatment, Randomized, Double Blind (Subject, Investigator), Placebo Control, Parallel Assignment, Safety/Efficacy Study

Primary outcome: To determine the effects of physiologic testosterone replacement on subjective and objective measures of sexual function, cognitive function and quality of life in women with hypopituitarism

Secondary outcome: To determine the effects of physiologic testosterone replacement on fat-free mass, muscle strength, leg power, muscle fatigability, and physical function in women with hypopituitarism.

Detailed description: Testosterone is the principal male sex hormone but is also present in smaller amounts in women and may be important for their health. Among its likely actions in women are the building of bone and muscle mass, increase in interest in sex (libido) and effects on the mood. Testosterone is commercially available as a hormone replacement therapy for males with an absence or lack of testosterone production. Testosterone for males is mainly given in the form of shots or skin patches which have certain disadvantages such as pain from shots and skin rashes from patches. It is anticipated that this experimental gel application will produce levels of the drug in the normal range in women.

Minimum age: 18 Years. Maximum age: 55 Years. Gender(s): Female.

Criteria:

Inclusion Criteria:

- Women age 18-55

- Hypopituitarism with central adrenal and/or gonadal deficiencies. To qualify patients

will need to have either 1 or 2 and they need to have 3:

1. To diagnose central adrenal deficiency, patients not on glucocorticoid replacement will have an insulin tolerance test (ITT) (patients with cardiovascular disease will be excluded) in which 0. 1U/kg of insulin will be given by iv and a peak cortisol value of less than 20ug/dl, associated with a glucose level of less than 40mg/dL will be considered consistent with central adrenal insufficiency. Patients on glucocorticoid replacement will be evaluated by examining their prior workup and if it is determined that they had evidence of central adrenal deficiency, an ITT will not be required to document central adrenal deficiency (an ITT will still be performed to determine GH deficiency).

2. To diagnose central gonadal deficiency, patients will be asked if they had amenorrhea or oligomenorrhea prior to estrogen replacement. An FAH of less than 5 MIU/ML will be used to confirm that they have central and not primary gonadal deficiency. In select patients in which the diagnosis of central gonadal deficiency is unclear, we may perform an LHRH stimulation test, in which 100 ug iv of LHRH (Factrel) will be given and a peak LH response of less than 15 MIU/ML will be considered consistent with central gonadotropin insufficiency.

3. Serum testosterone level on transdermal estrogen replacement of less than 20 ng/dL or free testosterone of less than 1. 5 pg/ml.

- No other significant medical condition

- Weight between 80 and 150% of ideal body weight

- Able to provide informed consent

- All races and ethnicities

- All patients regardless of marital status and relationship status.

Exclusion Criteria:

- Physical disabilities that would prevent them from participating in the study.

- Current use of testosterone or other androgenic steroids. Patients who are taking

testosterone, DHEA or other androgen precursors will discontinue these medications/supplements three months prior to the study.

- Significant cardiopulmonary disease (prior myocardial infarction causing ventricular

dysfunction, angina, arrhythmias, congestive heart failure, valvular problem), venous thrombotic event (pulmonary embolism or deep vein thrombosis), renal disease (creatinine greater than 1. 5 mg/dL), diabetes mellitus on insulin, uncontrolled hypertension, malignancy (other than basal cell skin carcinoma) or major psychiatric disease. Patients with depression or anxiety on a stable dose of medication will be allowed to enroll.

- Current abuse of illicit drugs or heavy ethanol use.

- History of breast cancer or abnormal mammogram at entry. If patients with an abnormal

mammogram or PAP smear are appropriately evaluated and found not to have cancer, they will be allowed to participate in the study.

- Those with significant liver function abnormalities defined as SGOT, SGPT or alkaline

phosphatase value of greater than one and one-half the upper limit of normal in our Clinical Pathology Laboratory or serum bilirubin levels of greater than 2 mg/dL will be excluded.

- Those with history of hyperandrogenic disorders such as hirsutism and polycystic ovary

disease will be excluded. These conditions are rare in women with hypopituitarism. Testosterone administration to these patients may exacerbate the underlying disorder.

- Women who are pregnant, seeking to become pregnant in the next 6 months, or

breast-feeding.

- Those who have previously experienced intolerance to other transdermal systems or

gels

- Drugs known to alter testosterone production such as megace or ketoconazole.

- Patients with untreated hyperprolactinemia or active Cushing's disease. Patients with

treated prolactinoma or Cushing's disease will be allowed to participate in the study.

- Hematocrit of greater than 50%

- Male sex

- Not willing to answer all questions on surveys

- EKG showing ischemia or prior myocardial infarction

- Patients with extensive brain surgery, severe head injury, brain tumors or other

conditions that profoundly affect CNS function.

- Patients not willing to be placed on a standardized hormonal replacement regimen

including transdermal estrogen and growth hormone.

Erik N Zuckerbraun, M.D., Phone: 310.668.8754, Email: erikzuckerbraun@cdrewu.edu

Charles R. Drew University, Los Angeles, California 90059, United States; Recruiting
Theodore C Friedman, M.D., Ph.D., Principal Investigator

Clinical Trial Research site

Starting date: July 2003
Ending date: December 2009
Last updated: January 10, 2008