Use of Low Dose Ketoconazole in Prostate Cancer That Does Not Respond to Hormone Therapy and Prior Chemotherapy

Prostate Cancer Clinical Trial

Official title: Assessing PSA Response in Low Dose Ketoconazole in Hormone Refractory Prostate Cancer Patients Who Have Failed at Least One Prior Systemic Chemotherapy Regimen

Status Completed

Clinical Trial Summary

The purpose of this study is to test the safety of ketoconazole and how well it works after chemotherapy has been used. Ketoconazole at lower doses has been used for fungal infections however has not yet been approved by the Food and Drug Administration for use in prostate cancer. Ketoconazole has been used for many years at high doses for prostate cancer, and this study will be to look at use of lower dose ketoconazole after someone has received chemotherapy. Ketoconazole works by halting the production of steroids in your body, including testosterone, and is thought to work directly on prostate cancer cells in published lab studies.

Clinical Trial Description

The aim of the study is to research the response of low dose ketoconazole in hormone refractory prostate cancer (HRPC) patients who have already undergone chemotherapy as part of their prostate cancer treatment. The hypothesis of the study is that HRPC patients who have been previously treated with chemotherapy will demonstrate objective PSA response rates to low dose ketoconazole, comparable to historical response rates reported in chemotherapy-naïve patients. This is a single arm trial, with all participants given ketoconazole 200mg TID, along with hydrocortisone given at 20mg in the morning, 10mg at night daily. Each cycle will consist of 28 days. The subject's study participation will continue until subject experiences disease progression, unacceptable toxicities, withdraws consent for the study or dies. ;

Study Design

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Supportive Care

Related Conditions & MeSH terms

• Prostate Cancer
• Prostatic Neoplasms

• NCT number: NCT00895310
• Study type: Interventional
• Source: University of California, Davis
• Status: Completed
• Phase: Phase 2
• Start date: May 2009
• Completion date: May 2015