Prostate Cancer Clinical Trial
Official title:
Effect of Intermittent Versus Continuous Androgen Suppression on Bone Loss and Body Composition in a Phase III Randomized Trial
The purpose of this study is to determine, in patients entered on the National Cancer
Institute of Canada (NCIC)-PR.7 trial of intermittent versus continuous androgen ablation,
whether the rates of osteoporosis, fractures, and alteration in body composition are reduced
by intermittent androgen ablation.
There will be two groups of patients:
1. A cross-sectional group of 150 patients registered in PR.7 prior to January 1, 2002,
randomized between intermittent androgen suppression (IAS) and continuous androgen
suppression (CAS) (75 from each group). Patients who have definite bone metastases are
excluded from this study. Biochemical failure does not exclude the patient.
2. A longitudinal study of 150 newly accrued patients randomized between IAS and CAS (75
from each group). These patients will have baseline evaluation of bone loss and body
composition, longitudinal monitoring and follow-up on an annual basis for patients on
CAS and at the end of each “off cycle” of IAS. Patients taking bisphosphonates are
excluded from this study.
Status | Recruiting |
Enrollment | 300 |
Est. completion date | April 2008 |
Est. primary completion date | |
Accepts healthy volunteers | No |
Gender | Both |
Age group | N/A and older |
Eligibility |
Inclusion Criteria: - Histologically confirmed PCa - Completed radiotherapy to the prostatic area more than 12 months prior to randomization - Rising PSA level (serum PSA > 3 ng/ml (3 µg/L)) and higher than the lowest level recorded previously since the end of radiotherapy (i.e. higher than the post-radiotherapy nadir) - No definite evidence of distant metastasis (radiological changes compatible with non-malignant diseases are acceptable) - No prior hormonal therapy with the exception of neo-adjuvant cytoreduction prior to radical radiotherapy or prostatectomy for a maximum duration of 12 months and completed at least 12 months prior to randomization. Exclusion Criteria: - Severe osteoporosis |
Primary Purpose: Screening, Time Perspective: Longitudinal
Country | Name | City | State |
---|---|---|---|
Canada | Sunnybrook and Women's College Health Sciences Centre | Toronto | Ontario |
Lead Sponsor | Collaborator |
---|---|
Ontario Cancer Research Network |
Canada,
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