Metformin Hydrochloride in Treating Patients With Prostate Cancer Undergoing Surgery

• Status: Completed
• Trial end date: 2014-04-01
• Target enrollment: 0
• Participant gender: Male

Summary

This randomized phase II trial studies how well metformin hydrochloride works compared to placebo in treating patients with prostate cancer undergoing surgery. Metformin hydrochloride may make some enzymes active. These enzymes may block other enzymes needed for cell growth and stop the growth of tumor cells.

• Phase: Phase 2
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: National Cancer Institute (NCI)
• Treatments: Metformin

Criteria

Inclusion Criteria:

• Men will be eligible to this study if they are diagnosed with a histologically confirmed organ-confined adenocarcinoma of the prostate (PCa) treatable by prostatectomy and have a current PSA less than 50 ng/ml

• Have not received chemotherapy and/or radiation for any malignancy (excluding non-melanoma skin cancer and cancers confined to organs with removal as only treatment) in the past 5 years

• Eastern Cooperative Oncology Group (ECOG) performance status 0-1 (Karnofsky >= 70%)

• Leukocytes >= 3,000/uL

• Absolute neutrophil count >= 1,500/uL

• Platelets >= 100,000/uL

• Total bilirubin =< 1.5 times institutional upper limits of normal (ULN)

• Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 1.5 times institutional ULN

• Creatinine within normal institutional limits

• Willing to use adequate contraception (barrier method, abstinence, subject has had a vasectomy or partner is using effective birth control or is postmenopausal) for the duration of study participation

• Ability to understand and the willingness to sign a written informed consent document

Exclusion Criteria:

• Type I or type II diabetic patients on treatment with any drug for diabetes or participants with fasting glucose >= 126 mg/dL

• History of impaired liver or kidney function

• Participants with a current history of high alcohol consumption (> 3 standard drinks/day) or binge drinking (5 or more drinks) in one session of 1-3 hours

• History of lactic acidosis or at increased risk for lactic acidosis such as patients with unstable or acute congestive heart failure who are at risk of hypoperfusion with hypoxemia

• Participants may not be receiving any other investigational agents

• History of allergic reactions attributed to compounds of similar chemical composition to metformin

• Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements

• History of acute or chronic metabolic acidosis

• Concurrent use of cationic drugs (e.g., amiloride, digoxin, morphine, procainamide, quinidine, quinine, ranitidine, triamterene, trimethoprim, or vancomycin)

• Concurrent use of non-study metformin or other biguanides