Trial record 1 of 1 for:    NCT00331773
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Radiation Therapy in Treating Patients With Stage II Prostate Cancer

This study is ongoing, but not recruiting participants.
Information provided by:
National Cancer Institute (NCI) Identifier:
First received: May 30, 2006
Last updated: August 3, 2012
Last verified: November 2009

RATIONALE: Giving radiation therapy that uses a 3-dimensional (3-D) image of the tumor to help focus thin beams of radiation directly on the tumor, and giving hypofractionated radiation therapy (higher doses over a shorter period of time), may kill more tumor cells and have fewer side effects. It is not yet known which radiation therapy regimen is more effective in treating prostate cancer.

PURPOSE: This randomized phase III trial is studying several different radiation therapy regimens to compare how well they work in treating patients with stage II prostate cancer.

Condition Intervention Phase
Prostate Cancer
Radiation: 3-dimensional conformal radiation therapy
Radiation: hypofractionated radiation therapy
Radiation: intensity-modulated radiation therapy
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Primary Purpose: Treatment
Official Title: A Phase III Randomized Study of Hypofractionated 3D-CRT/MRT Versus Conventionally Fractionated 3D-CRT/MRT in Patients With Favorable-Risk Prostate Cancer

Resource links provided by NLM:

Further study details as provided by National Cancer Institute (NCI):

Primary Outcome Measures:
  • Disease-free survival at 5 years as measured by Kaplan-Meier [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Time to failure [ Designated as safety issue: No ]
  • Disease-specific survival [ Designated as safety issue: No ]
  • Freedom from biochemical recurrence (FFBR) [ Designated as safety issue: No ]
  • Overall survival [ Designated as safety issue: No ]
  • Incidence of GU and GI acute and late toxicity [ Designated as safety issue: Yes ]
  • Statistical modeling of genomic biomarkers [ Designated as safety issue: No ]
  • Comparison of disease-specific HRQOL change in EPIC; the Utilization of Sexual Medications/Devices supplements the EPIC [ Designated as safety issue: No ]
  • Assessment of anxiety and depression change using the HSCL-25 [ Designated as safety issue: No ]
  • Evaluation and comparison of the cost-utility of each treatment arm using EQ-5D if the primary endpoint supports the primary hypothesis [ Designated as safety issue: No ]
  • Collection of paraffin-embedded tissue block, serum, plasma, and buffy coat cells for future translational research analyses [ Designated as safety issue: No ]

Estimated Enrollment: 1067
Study Start Date: April 2006
Estimated Primary Completion Date: February 2021 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Arm I
Patients undergo conventionally fractionated 3D-CRT or IMRT once daily 5 days a week for 8.2 weeks (total of 41 treatments).
Radiation: 3-dimensional conformal radiation therapy
41 or 28 treatments
Radiation: intensity-modulated radiation therapy
41 or 28 treatments
Experimental: Arm II
Patients undergo hypofractionated 3D-CRT or IMRT once daily 5 days a week for 5.6 weeks (total of 28 treatments).
Radiation: 3-dimensional conformal radiation therapy
41 or 28 treatments
Radiation: hypofractionated radiation therapy
Once daily 5 days a week for 5.6 weeks
Radiation: intensity-modulated radiation therapy
41 or 28 treatments

Detailed Description:



  • Compare the disease-free survival (DFS) of patients with favorable-risk stage II prostate cancer treated with hypofractionated vs conventionally fractionated three-dimensional conformal radiotherapy (3D-CRT) or intensity-modulated radiotherapy (IMRT).


  • Compare time to local progression, freedom from biochemical recurrence, and disease-specific and overall survival of patients treated with these regimens.
  • Determine the incidence of gastrointestinal and genitourinary toxic effects in patients treated with these regimens.
  • Compare the degree, duration, and significant differences in disease-specific health-related quality of life (HRQOL) decrements, using the Expanded Prostate Cancer Index Composite (EPIC), in patients treated with these regimens.
  • Determine whether anxiety and/or depression, as measured by the Hopkins Symptom Checklist-25 (HSCL-25), are decreased with therapy that improves DFS of these patients .
  • Determine whether the incremental gain in DFS outweighs decrements in the generic domains of HRQOL (i.e., mobility, self care, usual activities, pain/discomfort, and anxiety/depression) in patients treated with these regimens.
  • Conduct a cost-utility analysis of hypofractionated 3D-CRT or IMRT as a prostate cancer therapy if this regimen is shown to be as effective as conventionally fractionated 3D-CRT or IMRT in improving DFS.

OUTLINE: This is a randomized, controlled, multicenter study. Patients are stratified according to Gleason score (2-4 vs 5-6), prostate-specific antigen (PSA) level (< 4 ng/mL vs 4-9 ng/mL), and planned radiotherapy modality (three-dimensional conformal radiotherapy [3D-CRT] vs intensity-modulated radiotherapy [IMRT]). Patients are randomized to 1 of 2 treatment arms.

  • Arm I: Patients undergo conventionally fractionated 3D-CRT or IMRT once daily 5 days a week for 8.2 weeks (total of 41 treatments).
  • Arm II: Patients undergo hypofractionated 3D-CRT or IMRT once daily 5 days a week for 5.6 weeks (total of 28 treatments).

Quality of life, anxiety, and depression are assessed at baseline and then at 6 months and 1, 2, and 5 years after the start of radiotherapy.

After completion of study treatment, patients are followed every 3 months for 2 years, every 6 months for 3 years, and then annually thereafter.

PROJECTED ACCRUAL: A total of 1,067 patients will be accrued to this study.


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   No


  • Histologically confirmed adenocarcinoma of the prostate within the past 6 months

    • Clinical stage T1-2c
  • Combined Gleason score 2-6
  • Prostate-specific antigen (PSA) < 10 ng/mL within the past 6 months

    • No PSA measurement for ≥ 10 days after prostate biopsy
    • No PSA measurement for ≥ 30 days after discontinuation of finasteride (90 days after discontinuation of dutasteride)
  • No regional lymph node involvement
  • No distant metastases


  • Zubrod performance status 0-1
  • No unstable angina and/or congestive heart failure requiring hospitalization within the past 6 months
  • No transmural myocardial infarction within the past 6 months
  • No acute bacterial or fungal infection requiring IV antibiotics
  • No chronic obstructive pulmonary disease exacerbation or other respiratory illness requiring hospitalization or precluding study treatment
  • No hepatic insufficiency resulting in clinical jaundice and/or coagulation defects
  • No known AIDS
  • No prior or concurrent lymphomatous/hematogenous malignancy or other invasive malignancy except nonmelanomatous skin cancer or any other cancer for which the patient has been continually disease-free for ≥ 5 years (e.g., carcinoma in situ of the bladder or oral cavity)
  • No other severe, active comorbidity


  • See Disease Characteristics
  • No prior radical prostatectomy or cryosurgery for prostate cancer
  • No prior hormonal therapy, including any of the following:

    • Luteinizing hormone-releasing hormone agonists (e.g., goserelin or leuprolide)
    • Antiandrogens (e.g., flutamide or bicalutamide)
    • Estrogens (e.g., diethylstilbestrol [DES])
    • Surgical castration (bilateral orchiectomy)
  • No prior pelvic radiotherapy or prostate brachytherapy
  • No prior or concurrent cytotoxic chemotherapy for prostate cancer
  • At least 30 days since prior finasteride
  • At least 90 days since prior dutasteride
  • No concurrent neoadjuvant or adjuvant hormonal therapy
  • Concurrent warfarin or other blood-thinning agents allowed
  Contacts and Locations
Please refer to this study by its identifier: NCT00331773

  Show 296 Study Locations
Sponsors and Collaborators
Radiation Therapy Oncology Group
Study Chair: W. Robert Lee, MD Duke Cancer Institute
  More Information

Additional Information:
McDonald AM, Dobelbower MC, Kim RY, et al.: Efficacy and rectal toxicity of hypofractionated radiation therapy with daily image guidance. [Abstract] J Clin Oncol 29 (Suppl 7): A-85, 2011.

Responsible Party: Walter John Curran, Jr, Radiation Therapy Oncology Group Identifier: NCT00331773     History of Changes
Other Study ID Numbers: CDR0000481119, RTOG-0415
Study First Received: May 30, 2006
Last Updated: August 3, 2012
Health Authority: United States: Federal Government

Keywords provided by National Cancer Institute (NCI):
adenocarcinoma of the prostate
stage IIB prostate cancer
stage IIA prostate cancer

Additional relevant MeSH terms:
Prostatic Neoplasms
Genital Neoplasms, Male
Urogenital Neoplasms
Neoplasms by Site
Genital Diseases, Male
Prostatic Diseases processed this record on April 15, 2014