Hormone Therapy in Treating Patients With Rising PSA Levels Following Radiation Therapy for Prostate Cancer
A Phase III Randomized Trial Comparing Intermittent Versus Continuous Androgen Suppression for Patients With Prostate-Specific-Antigen Progression in the Clinical Absence of Distant Metastases Following Radiotherapy for Prostate Cancer
5 other identifiers
interventional
1,386
1 country
29
Brief 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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3 prostate-cancer
Started Jan 1999
Longer than P75 for phase_3 prostate-cancer
29 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 5, 1999
CompletedFirst Submitted
Initial submission to the registry
November 1, 1999
CompletedFirst Posted
Study publicly available on registry
January 27, 2003
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 4, 2010
CompletedStudy Completion
Last participant's last visit for all outcomes
January 10, 2013
CompletedJune 23, 2021
April 1, 2020
11.8 years
November 1, 1999
June 21, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Overall survival
2 years
Secondary Outcomes (6)
Time to hormone resistance
2 years
Quality of life by European Organization for Research of the Treatment of Cancer Quality of Life Questionnaire-C30+ (EORTC QLQ-C30+) trial specific checklist
2 years
Serum cholesterol, high-density lipoprotein, and low-density lipoprotein levels
2 years
Duration of treatment and non-treatment interval during intermittent androgen suppression arm only
2 years
Time to testosterone recovery during intermittent androgen suppression arm only
2 years
- +1 more secondary outcomes
Study Arms (2)
Intermittent Androgen Suppression
ACTIVE COMPARATORContinuous Androgen Suppression
ACTIVE COMPARATORInterventions
Patients on the IAS arm should receive a minimum of 4 weeks of antiandrogen and a total of 8 months of LHRH analog during each on-treatment interval. The dose and frequency of LHRH treatment will be determined by the drug being administered (Appendix IX). Patients on the IAS arm should not be given an LHRH analog injection at the end of month 8 unless the patient is transferred to continuous treatment as per protocol upon completion of the 8 month intermittent treatment. Patients may be treated with any commercially available LHRH analog and antiandrogen during or after protocol treatment (Appendix IX). Patients may switch drugs at any time during or after protocol treatment. The dose and schedule of treatment will depend on the agent used. Patients should continue to receive hormone therapy without interruption until hormone resistance has been documented
Patients on the IAS arm should receive a minimum of 4 weeks of antiandrogen and a total of 8 months of LHRH analog during each on-treatment interval. The dose and frequency of LHRH treatment will be determined by the drug being administered (Appendix IX). Patients on the IAS arm should not be given an LHRH analog injection at the end of month 8 unless the patient is transferred to continuous treatment as per protocol upon completion of the 8 month intermittent treatment. Patients may be treated with any commercially available LHRH analog and antiandrogen during or after protocol treatment (Appendix IX). Patients may switch drugs at any time during or after protocol treatment. The dose and schedule of treatment will depend on the agent used. Patients should continue to receive hormone therapy without interruption until hormone resistance has been documented
Patients on the IAS arm should receive a minimum of 4 weeks of antiandrogen and a total of 8 months of LHRH analog during each on-treatment interval. The dose and frequency of LHRH treatment will be determined by the drug being administered (Appendix IX). Patients on the IAS arm should not be given an LHRH analog injection at the end of month 8 unless the patient is transferred to continuous treatment as per protocol upon completion of the 8 month intermittent treatment. Patients may be treated with any commercially available LHRH analog and antiandrogen during or after protocol treatment (Appendix IX). Patients may switch drugs at any time during or after protocol treatment. The dose and schedule of treatment will depend on the agent used. Patients should continue to receive hormone therapy without interruption until hormone resistance has been documented
Patients on the IAS arm should receive a minimum of 4 weeks of antiandrogen and a total of 8 months of LHRH analog during each on-treatment interval. The dose and frequency of LHRH treatment will be determined by the drug being administered (Appendix IX). Patients on the IAS arm should not be given an LHRH analog injection at the end of month 8 unless the patient is transferred to continuous treatment as per protocol upon completion of the 8 month intermittent treatment. Patients may be treated with any commercially available LHRH analog and antiandrogen during or after protocol treatment (Appendix IX). Patients may switch drugs at any time during or after protocol treatment. The dose and schedule of treatment will depend on the agent used. Patients should continue to receive hormone therapy without interruption until hormone resistance has been documented
Patients on the IAS arm should receive a minimum of 4 weeks of antiandrogen and a total of 8 months of LHRH analog during each on-treatment interval. The dose and frequency of LHRH treatment will be determined by the drug being administered (Appendix IX). Patients on the IAS arm should not be given an LHRH analog injection at the end of month 8 unless the patient is transferred to continuous treatment as per protocol upon completion of the 8 month intermittent treatment. Patients may be treated with any commercially available LHRH analog and antiandrogen during or after protocol treatment (Appendix IX). Patients may switch drugs at any time during or after protocol treatment. The dose and schedule of treatment will depend on the agent used. Patients should continue to receive hormone therapy without interruption until hormone resistance has been documented
Patients on the IAS arm should receive a minimum of 4 weeks of antiandrogen and a total of 8 months of LHRH analog during each on-treatment interval. The dose and frequency of LHRH treatment will be determined by the drug being administered (Appendix IX). Patients on the IAS arm should not be given an LHRH analog injection at the end of month 8 unless the patient is transferred to continuous treatment as per protocol upon completion of the 8 month intermittent treatment. Patients may be treated with any commercially available LHRH analog and antiandrogen during or after protocol treatment (Appendix IX). Patients may switch drugs at any time during or after protocol treatment. The dose and schedule of treatment will depend on the agent used. Patients should continue to receive hormone therapy without interruption until hormone resistance has been documented
Patients on the IAS arm should receive a minimum of 4 weeks of antiandrogen and a total of 8 months of LHRH analog during each on-treatment interval. The dose and frequency of LHRH treatment will be determined by the drug being administered (Appendix IX). Patients on the IAS arm should not be given an LHRH analog injection at the end of month 8 unless the patient is transferred to continuous treatment as per protocol upon completion of the 8 month intermittent treatment. Patients may be treated with any commercially available LHRH analog and antiandrogen during or after protocol treatment (Appendix IX). Patients may switch drugs at any time during or after protocol treatment. The dose and schedule of treatment will depend on the agent used. Patients should continue to receive hormone therapy without interruption until hormone resistance has been documented
Eligibility Criteria
Contact the study team to discuss eligibility requirements. They can help determine if this study is right for you.
Sponsors & Collaborators
- NCIC Clinical Trials Grouplead
- National Cancer Institute (NCI)collaborator
- SWOG Cancer Research Networkcollaborator
Study Sites (29)
Tom Baker Cancer Centre
Calgary, Alberta, T2N 4N2, Canada
Cross Cancer Institute
Edmonton, Alberta, T6G 1Z2, Canada
BCCA - Cancer Centre for the Southern Interior
Kelowna, British Columbia, V1Y 5L3, Canada
BCCA - Fraser Valley Cancer Centre
Surrey, British Columbia, V3V 1Z2, Canada
Clinical Research Unit at Vancouver Coastal
Vancouver, British Columbia, V5Z 1M9, Canada
BCCA - Vancouver Cancer Centre
Vancouver, British Columbia, V5Z 4E6, Canada
CancerCare Manitoba
Winnipeg, Manitoba, R3E 0V9, Canada
The Vitalite Health Network - Dr. Leon Richard
Moncton, New Brunswick, E1C 8X3, Canada
Atlantic Health Sciences Corporation
Saint John, New Brunswick, E2L 4L2, Canada
Dr. H. Bliss Murphy Cancer Centre
St. John's, Newfoundland and Labrador, AIB 3V6, Canada
QEII Health Sciences Center
Halifax, Nova Scotia, B3H 1V7, Canada
William Osler Health Centre, Brampton Memorial
Brampton, Ontario, L6R 3J7, Canada
Northeast Cancer Center Health Sciences
Greater Sudbury, Ontario, P3E 5J1, Canada
Juravinski Cancer Centre at Hamilton Health Sciences
Hamilton, Ontario, L8V 5C2, Canada
Cancer Centre of Southeastern Ontario at Kingston
Kingston, Ontario, K7L 5P9, Canada
London Regional Cancer Program
London, Ontario, N6A 4L6, Canada
Credit Valley Hospital
Mississauga, Ontario, L5M 2N1, Canada
Ottawa Health Research Institute - General Division
Ottawa, Ontario, K1H 8L6, Canada
Niagara Health System
St. Catharines, Ontario, L2R 7C6, Canada
Thunder Bay Regional Health Science Centre
Thunder Bay, Ontario, P7B 6V4, Canada
Odette Cancer Centre
Toronto, Ontario, M4N 3M5, Canada
Univ. Health Network-Princess Margaret Hospital
Toronto, Ontario, M5G 2M9, Canada
Windsor Regional Cancer Centre
Windsor, Ontario, N8W 2X3, Canada
CHUM - Hopital Notre-Dame
Montreal, Quebec, H2L 4M1, Canada
McGill University - Dept. Oncology
Montreal, Quebec, H2W 1S6, Canada
CHUQ-Pavillon Hotel-Dieu de Quebec
Québec, Quebec, G1R 2J6, Canada
Centre hospitalier universitaire de Sherbrooke
Sherbrooke, Quebec, J1H 5N4, Canada
Allan Blair Cancer Centre
Regina, Saskatchewan, S4T 7T1, Canada
Saskatoon Cancer Centre
Saskatoon, Saskatchewan, S7N 4H4, Canada
Related Publications (4)
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.
PMID: 15809670BACKGROUNDCrook 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.
PMID: 22931259RESULTHamilton 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.
PMID: 33390282DERIVEDKlotz 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.
PMID: 25732157DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Laurence H. Klotz, MD
Toronto Sunnybrook Regional Cancer Centre
- STUDY CHAIR
Celestia S. Higano, MD
University of Washington
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- NETWORK
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 1, 1999
First Posted
January 27, 2003
Study Start
January 5, 1999
Primary Completion
October 4, 2010
Study Completion
January 10, 2013
Last Updated
June 23, 2021
Record last verified: 2020-04
Data Sharing
- IPD Sharing
- Will not share