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Spots Global Cancer Trial Database for CAPSAICIN Trial: Assessing Capsaicin as a Chemopreventive Agent for Prostate Cancer

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Trial Identification

Brief Title: CAPSAICIN Trial: Assessing Capsaicin as a Chemopreventive Agent for Prostate Cancer

Official Title: CAPSAICIN Trial: A Prospective Study of Capsaicin in Subjects With Clinically Localized Prostate Cancer Undergoing Active Surveillance or Radical Prostatectomy

Study ID: NCT02037464

Conditions

Prostate Cancer

Study Description

Brief Summary: The purpose of this study is to determine the chemopreventive properties of capsaicin, the active compound in chili peppers, in prostate cancer patients enrolled in the active surveillance program or patients scheduled to undergo radical prostatectomy.

Detailed Description: Rationale A large body of evidence supports the role of dietary factors in prostate cancer development and progression. Most of this evidence suggests that diet high in fat including red meat and low in micronutrients and other anti-oxidants, increases the risk of disease. We are interested in the therapeutic potential of the dietary agent, capsaicin (CAP). Capsaicin is the active compound in chili peppers, and related plants. Pre-clinical studies have found that capsaicin has potent growth inhibitory and pro-apoptotic effects. It is thought that consumption of a capsaicin supplement may have a clinical benefit for subjects with localized prostate cancer who have chosen to be managed by active surveillance or improve surgical outcome of patients undergoing radical prostatectomy. Objective(s) Primary • To assess the effect of capsaicin daily therapy on the expression of ki67 and p27 biomarkers in a post-treatment biopsy or prostate specimen from RP. Secondary * To assess the effect of therapy with repeat oral dosing of capsaicin two times daily on Prostate Specific Antigen (PSA) kinetics in men on active surveillance for localized prostate cancer * To assess the effect of therapy with repeat oral dosing of capsaicin two times daily on grade and the presence of prostatic intraepithelial neoplasia (PIN) in a post-treatment biopsy * To assess the effect of therapy with repeat oral dosing of capsaicin two times daily on the expression of markers of apoptosis, cell cycle, TRP-V1 and TRP-V6 * To assess the safety and tolerability of capsaicin therapy in men on active surveillance (AS) for prostate cancer * To assess alterations in prostate volume and time to recurrence Endpoint(s) Primary • Determine effect of capsaicin therapy on expression of ki67 and p27 biomarkers in a post-treatment biopsy Secondary * Determine effect of capsaicin daily therapy on PSA kinetics in men on active surveillance for localized prostate cancer * To evaluate the effect of capsaicin daily therapy on grade and the presence of prostatic intraepithelial neoplasia (PIN) in post treatment biopsy * To assess the effect of capsaicin therapy on the expression of markers of apoptosis, cell cycle, TRP-V1 and TRP-V6 Safety and Tolerability * Adverse events (AEs) * Clinical laboratory evaluations (PSA, electrolytes, biochemistry, hematology, cholesterol) Pharmacodynamic * Levels of serum capsaicin (CAP) * Levels of serum testosterone (T) Study Design This is a phase II, open label, single centre study to evaluate the efficacy and safety of repeat oral dosing of one CAP capsules twice times daily for 6 months prior to a prostate biopsy in men on active surveillance for localized prostate cancer, as well as 6 weeks prior to radical prostatectomy (RP). Study Population One hundred men men monitored (sixty from active surveillance (AS) and forty patients scheduled to undergo radical prostatectomy) will be eligible for participation. Subjects must satisfy all inclusion and exclusion criteria. A sufficient number will be enrolled to achieve at least 100 completed subjects

Eligibility

Minimum Age: 19 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: MALE

Healthy Volunteers: No

Locations

Sunnybrook Hospital, Toronto, Ontario, Canada

Contact Details

Name: Laurence Klotz, MD

Affiliation: Sunnybrook Hospital

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

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