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Bicalutamide With or Without Metformin for Biochemical Recurrence in Overweight or Obese Prostate Cancer Patients — BIMET-1  

Cancer of Prostate Clinical Trial

Official title:
Bicalutamide With or Without Metformin for Biochemical Recurrence in Overweight or Obese Prostate Cancer Patients (BIMET-1)

Clinical Trial Summary

Obesity and metabolic syndrome are prevalent among prostate cancer patients. Having an elevated insulin level in the blood is associated with a shorter median time to cancer progression and median overall survival in patients with an elevated PSA after prior treatment. Androgen deprivation therapy (ADT) with drugs like bicalutamide is frequently used in this patient population,with no proven benefit, which may increase mortality and morbidity.This study evaluates how metformin in combination with bicalutamide affects prostate cancer.

Clinical Trial Description

1 Cycle = 28 days = 4 weeks. Treatment will be administered on an outpatient basis ΣΏ Metformin starting dose is 500 mg BID, will be gradually increased to target dose of 1000mg BID. Treatment ARM A Cycles 1 - 2: Observation without treatment Cycles 3 - 8: Bicalutamide 50 mg daily, orally, continuously to the end of study (week 32). Treatment ARM B Cycles 1 - 2: In order to minimize gastrointestinal discomfort, metformin dosing will be ramped up over a period of 2 weeks. Metformin treatment will be started at 500 mg BID (Dose Level -2) and increased by an increment of 500 mg daily every week +/- 2 days provided no grade 2 or higher gastrointestinal toxicity is noted. If grade 2 or greater gastrointestinal toxicity occurs during the first 4 weeks of treatment, the subject will be evaluated every 2 weeks until resolution of toxicity to grade 0 or 1 and, then, the metformin dose will be increased to the next dose level. The target dose of metformin is 1000 mg BID. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02614859
Study type Interventional
Source Fox Chase Cancer Center
Contact
Status Completed
Phase Phase 2
Start date December 1, 2015
Completion date January 24, 2020
View Details
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