NCT00769548

Radiation Therapy and Hormone Therapy in Treating Patients With Prostate Cancer

A PHASE III TRIAL COMPARING WHOLE PELVIC IRRADIATION FOLLOWED BY A CONEDOWN BOOST TO BOOST IRRADIATION ONLY AND COMPARING NEOADJUVANT TO ADJUVANT TOTAL ANDROGEN SUPPRESSION (TAS)

• Status: Completed
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 1,322 (actual)
• Sponsor: Radiation Therapy Oncology Group · Network
• Sex: Male
• Age: 120 Years
• Healthy volunteers: Not accepted

Summary

RATIONALE: Radiation therapy uses high energy x-rays to damage tumor cells. Hormone therapy combined with radiation therapy may be a more effective treatment for prostate cancer. PURPOSE: Randomized phase III trial to compare the effectiveness of four different combinations of radiation and hormone therapy in treating patients with prostate cancer.

Detailed description

OBJECTIVES: I. Examine whether total androgen suppression (TAS) with flutamide/goserelin and whole-pelvic irradiation followed by a cone-down boost to the prostate improves progression-free survival at 5 years by at least 10% compared to TAS and prostate-only irradiation in patients with adenocarcinoma of the prostate at significant risk of nodal involvement. II. Examine whether induction and concurrent (neoadjuvant) TAS and radiotherapy improves the progression-free survival at 5 years by at least 10% compared to adjuvant TAS and radiotherapy. III. Compare treatments with regard to local control, time to distant failure, and overall survival. OUTLINE: Randomized study. Arm I: Neoadjuvant Antiandrogen Therapy with Radiotherapy. Flutamide, FLUT, NSC-147834; Goserelin, Zoladex, ZDX, NSC-606864; with irradiation of the whole pelvis followed by a boost to the prostate using photons of at least 6 MV. Arm II: Neoadjuvant Antiandrogen Therapy with Radiotherapy; FLUT; ZDX; with irradiation of the prostate using equipment as in Arm I. Arm III: Radiotherapy followed by Adjuvant Antiandrogen Therapy. Irradiation as in Arm I; followed by FLUT; ZDX. Arm IV: Radiotherapy followed by Adjuvant Antiandrogen Therapy. Irradiation as in Arm II; followed by FLUT; ZDX. PROJECTED ACCRUAL: 1,200 patients will be accrued over 2.5 years.

Conditions

• Prostate Cancer

Interventions

Type	Name	Description
DRUG	flutamide	Drug used for TAS.
DRUG	goserelin acetate	Drug used for TAS.
RADIATION	low-LET photon therapy	radiation therapy

Timeline

• Start date: 1995-04-01
• Primary completion: 2001-04-01
• Completion: 2016-12-01
• First posted: 2008-10-09
• Last updated: 2017-01-04