Subjects who have partners of childbearing potential must be willing to use a method of birth control with adequate barrier protection as determined to be acceptable by the principal investigator and sponsor during the study and for 1 week after last study drug administration Patients who have partners of childbearing potential (e.g. female that has not been surgically sterilized or who are not amenorrheic for >= 12 months) must be willing to use a method of birth control in addition to adequate barrier protection as determined to be acceptable by the investigator during the study and for 13 weeks after last study drug administration. Please note that the efficacy of hormonal contraception may be decreased if administered with olaparib. Subjects who have partners of childbearing potential must be willing to use a method of birth control with adequate barrier protections as determined acceptable by the principal investigator during the study and for 1 week after the last dose of abiraterone acetate Participants who have partners of childbearing potential must be willing to use a method of birth control with adequate barrier protection as determined to be acceptable by the principal investigator (PI) during the treatment period and for 1 week after last dose of AA Patients who have partners of childbearing potential must be willing to use a method of birth control with adequate barrier protection as determined to be acceptable by the principal investigator during the treatment period and for 1 week after last dose of abiraterone acetate Participants who have partners of childbearing potential must be willing to use a method of birth control with adequate barrier protection as determined to be acceptable by the principal investigator during the treatment period and for 1 week after last dose of enzalutamide Patients who have partners of childbearing potential must be willing to use a method of birth control with adequate barrier protection as determined to be acceptable by the principal investigator and sponsor during the study and for 1 week after last dose of abiraterone acetate Patients who have partners of childbearing potential must be willing to use a method of birth control with adequate barrier protection as determined to be acceptable by the principal investigator during the study and for 1 week after last dose of abiraterone acetate Patients who have partners of childbearing potential must be willing to use a method of birth control with adequate barrier protection during the study and for 1 week after the last dose of abiraterone acetate Patients who have partners of childbearing potential must be willing to use a method of birth control with adequate barrier protection as determined to be acceptable by the principal investigator and sponsor during the study and for 1 week after last study drug administration Patients who have partners of childbearing potential must be willing to use a method of birth control with adequate barrier protection as determined to be acceptable by the principal investigator and sponsor during the study and for 1 week after last dose of abiraterone acetate Patients who have partners of childbearing potential must be willing to use a method of birth control with adequate barrier protection during the study and for 1 week after the last dose of ranolazine Patients who have partners of childbearing potential who are not willing to use a method of birth control with adequate barrier protection as determined to be acceptable by the principal investigator and sponsor during the study and for 13 weeks after last study drug administration