Hormone Therapy in Treating Patients With Rising PSA Levels Following Radiation Therapy for Prostate Cancer

Summary

RATIONALE: Androgens can stimulate the growth of prostate cancer cells. Hormone therapy may fight prostate cancer by reducing the production of androgens. It is not yet known which androgen suppression regimen is more effective for prostate cancer. PURPOSE: This randomized phase III trial is studying two hormone therapy regimens and comparing them to see how well they work in treating patients with rising PSA levels following radiation therapy for prostate cancer.

Timeline

Start

1999-01-05

Primary completion

2010-10-04

Completion

2013-01-10

Publications

• Background Klotz L, Correia A, Zhang W. The relationship between the androgen receptor CAG repeat polymorphism length and the response to intermittent androgen suppression therapy for advanced prostate cancer. Prostate Cancer Prostatic Dis. 2005;8(2):179-83. doi: 10.1038/sj.pcan.4500792.
• Results Crook JM, O'Callaghan CJ, Duncan G, Dearnaley DP, Higano CS, Horwitz EM, Frymire E, Malone S, Chin J, Nabid A, Warde P, Corbett T, Angyalfi S, Goldenberg SL, Gospodarowicz MK, Saad F, Logue JP, Hall E, Schellhammer PF, Ding K, Klotz L. Intermittent androgen suppression for rising PSA level after radiotherapy. N Engl J Med. 2012 Sep 6;367(10):895-903. doi: 10.1056/NEJMoa1201546.
• Hamilton RJ, Ding K, Crook JM, O'Callaghan CJ, Higano CS, Dearnaley DP, Horwitz EM, Goldenberg SL, Gospodarowicz MK, Klotz L. The Association Between Statin Use and Outcomes in Patients Initiating Androgen Deprivation Therapy. Eur Urol. 2021 Apr;79(4):446-452. doi: 10.1016/j.eururo.2020.12.031. Epub 2020 Dec 31.
• Klotz L, O'Callaghan C, Ding K, Toren P, Dearnaley D, Higano CS, Horwitz E, Malone S, Goldenberg L, Gospodarowicz M, Crook JM. Nadir testosterone within first year of androgen-deprivation therapy (ADT) predicts for time to castration-resistant progression: a secondary analysis of the PR-7 trial of intermittent versus continuous ADT. J Clin Oncol. 2015 Apr 1;33(10):1151-6. doi: 10.1200/JCO.2014.58.2973. Epub 2015 Mar 2.

Drugs

Indications