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Spots Global Cancer Trial Database for Cell-Free DNA and RNA in Blood fromMetastatic Prostate Cancer Patients

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Trial Identification

Brief Title: Cell-Free DNA and RNA in Blood fromMetastatic Prostate Cancer Patients

Official Title: Studies of Cell-Free DNA and RNA in Blood From Patients Being Treated for Prostate Cancer

Study ID: NCT02853097

Study Description

Brief Summary: This research trial studies cell-free deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) in blood from patients with prostate cancer that does not respond to hormone therapy and has spread to other places in the body. Studying samples of blood from patients with prostate cancer may help doctors to learn more about the changes that occur in tumor cells over time and how they become resistant to anti-cancer drugs.

Detailed Description: PRIMARY OBJECTIVES: I. To document the appearance of androgen receptor isoform splice variant 7 (AR-V7) expression over the course of therapy in castration-resistant prostate cancer (CRPC). II. To determine whether detectable AR-V7 is associated with a shortened duration of treatment benefit of abiraterone or enzalutamide. SECONDARY OBJECTIVES: I. To determine how the presence and expression level of AR-V7 impacts response to docetaxel. II. To determine at what point AR-V7 arises during androgen deprivation therapy (ADT) and how its presence and expression corresponds to castration resistance. TERTIARY OBJECTIVES: I. To determine if androgen receptor isoform splice variants (AR-Vs) other than AR-V7 play a role in resistance and / or response to the therapies explored in this study. II. To determine if, in patients who do not express mutations in androgen receptor (AR), other genetic alterations are associated with treatment outcomes to the therapies explored in this study. OUTLINE: Patients undergo blood collection every 4-12 weeks during ADT, abiraterone and / or enzalutamide and docetaxel. Patients switched from ADT to either abiraterone or enzalutamide during the study will undergo phlebotomy every 6-12 weeks. Samples are analyzed for cell-free ribonucleic acid (cfRNA), cell-free deoxyribonucleic acid (cfDNA), AR-V7, and other AR-Vs via quantitative reverse transcriptase-polymerase chain reaction (RT-PCR). After completion of study, patients are followed up for 3 years.

Keywords

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: MALE

Healthy Volunteers: No

Locations

Los Angeles County-USC Medical Center, Los Angeles, California, United States

USC / Norris Comprehensive Cancer Center, Los Angeles, California, United States

Keck Medical Center of USC Pasadena, Pasadena, California, United States

Contact Details

Name: Jacek Pinski, MD

Affiliation: University of Southern California

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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