Prostate Cancer Clinical Trial
Fatty Acid Synthase Inhibition in Castration Refractory Prostate Cancer
The purpose of this research study is to find out what effects (good and bad) omeprazole and cabazitaxel, or omeprazole and docetaxel, has on participants and their condition. Investigators believe omeprazole may help the other medications work.
Primary Objective(s): Obtain Overall Response Rate (ORR) to taxane therapy by adding the fatty acid synthase inhibitor, omeprazole to the current "failing" taxane regimen in 15% of subjects using Prostate Cancer Clinical Trials Working Group 3 (PCWG3) criteria, defined by partial response (PR) or complete response (CR)
Secondary Objectives (only at patients treated at Wake Forest Baptist Comprehensive Cancer Center main campus):
Pharmacodynamics-demonstrate omeprazole in vivo fatty acid synthase inhibition by 11C-Acetate PET/CT (3-6) Non-invasive approach to demonstrate the fatty acid synthase inhibitor (omeprazole) is hitting its target
Obtain a prostate specific antigen response rate by adding the fatty acid synthase inhibitor omeprazole to the current "failing" taxane regimen. (16)
Measure pain using the Patient-Reported Outcomes Measurement Information System (PROMIS) at Baseline, Cycle 5, Cycle 12, and every cycle thereafter.
Patients must have castrate refractory prostate cancer with prior taxane treatment (docetaxel or cabazitaxel) which was used in the castrate refractory setting
Cancer Progression as defined by PCWG3
Age 18 or older.
ECOG 0, 1, or 2
Life expectancy of greater than 2 months
Men must agree to use adequate contraception (barrier method of birth control; abstinence) prior to study entry and for the duration of study participation.
Ability to understand and the willingness to sign an IRB-approved informed consent document (either directly or via a legally authorized representative).
Organ & marrow function as defined below: Absolute neutrophil count >1,200/mcL Platelets >75,000/mcL; total bilirubin= within normal institutional limits; AST(SGOT)/ALT(SGPT) <2.5 X institutional upper limit of normal; creatinine <2.5 X institutional upper limit of normal
Patients may not be receiving any other investigational agents.
History of allergic reactions attributed to compounds of similar chemical or biologic composition to omeprazole or taxane therapy.
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.
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