Fatty Acid Synthase Inhibition in Castration Refractory Prostate Cancer

Eligibility Criteria

Inclusion Criteria:

* 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

Exclusion Criteria:

* 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.