Post-operative or Early Salvage XRT and ADT for High Risk PCa

• Status: Terminated
• Trial end date: 2016-06-01
• Target enrollment: 0
• Participant gender: Male

Summary

RATIONALE: Conformal radiation therapy uses a 3-dimensional (3-D) image of the tumor to help focus thin beams of radiation directly on the tumor. Giving conformal external-beam radiation therapy in higher doses over a shorter period of time may kill more tumor cells and have fewer side effects. Androgens can cause the growth of prostate cancer cells. Hormone therapy, such as leuprolide acetate, may lessen the amount of androgens made by the body. It is not yet known whether radiation therapy is more effective when given together with or without hormone therapy in treating patients with prostate cancer who have undergone surgery.

PURPOSE: This randomized phase III trial is studying radiation therapy to see how well it works compared with radiation therapy given together with hormone therapy in treating patients who have undergone surgery for stage I, stage II, or stage III prostate cancer.

• Phase: Phase 3
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: European Organisation for Research and Treatment of Cancer - EORTC
• Treatments: Androgen Antagonists; Leuprolide

Criteria

DISEASE CHARACTERISTICS:

• Diagnosis of prostate cancer

• Clinical stage cT1-2-3a, N0, M0 disease pre-operatively

• Pre-operative PSA ≤ 5 x upper limit of normal

• Presenting the following conditions after radical prostatectomy:

• Gleason sum 5-10

• Pathologic stage pT2R1 (positive surgical margins with at least a tumor trans-section > 2 mm) or pT3a-b (irrespective of margin status)

• Negative lymph node (LN) status (pN0) by LN sampling or LN dissection

• Unknown pathological LN status is not allowed, except for disease classified as cT ≤ cT1c with baseline PSA ≤ 10 ng/mL, Gleason score < 7, and ≥ 12 positive core biopsies < 50%

• Undetectable post-operative PSA within 3 months of surgery

PATIENT CHARACTERISTICS:

• WHO performance status 0-1

• WBC ≥ 3 x 10^9/L

• Hemoglobin ≥ 110 g/L

• Platelet count ≥ 100 x 10^9/L

• No other malignancy except adequately treated basal cell carcinoma of the skin or other malignancy from which the patient has been disease free for at least 5 years

• No psychological, familial, sociological, or geographical condition potentially hampering compliance with the study protocol and follow-up schedule

PRIOR CONCURRENT THERAPY:

• See Disease Characteristics

• More than 5 years since prior chemotherapy

• No prior pelvic irradiation

• No prior bilateral orchiectomy

• No prior hormonal treatment except neoadjuvant treatment lasting ≤ 3 months

• No other concurrent anticancer agent or modality