Moderately Hypofractionated Radiotherapy for Prostate Cancer.

Prostatic Neoplasms Clinical Trial

Official title: A Prospective Randomized Phase II Clinical Trial of Moderately Hypofractionated Radiotherapy (70 Gy in 28 Fractions vs 60 Gy in 20 Fractions) Using Helical Tomotherapy.

Status Enrolling by invitation

Clinical Trial Summary

Radiation therapy is one of the standard treatments for men with prostate cancer. Moderately hypofractionated radiotherapy has been established to be equivalent to standard fractionated radiotherapy in several large randomized clinical trials, however different hypofractionated regimens have been used in these studies. The two most common hypofractionated regimens are 70 Gy in 28 fractions and 60 Gy in 20 fractions, both are considered standard of care, however it is not unknown which regimen is better in terms of effectiveness and toxicity. The aim of this randomized controlled clinical trial is to compare the two hypofractionated radiotherapy regimens using Helical Tomotherapy.

Clinical Trial Description

OBJECTIVES:

Primary

Compare the biochemical relapse free survival (DFS) of patients with prostate cancer treated with hypofractionated regimens 70 Gy in 28 fractions and 60 Gy in 20 fractions intensity-modulated radiotherapy (IMRT) using helical Tomotherapy.

Secondary

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.

OUTLINE: This is a randomized study. Patients are stratified according to TNM ( T1-3N0M0), Gleason score (6,7 (3+4), 7(4+3), 8). Before radiotherapy patients receive hormone therapy from 3 months to 6 months. Patients are randomized to 1 of 2 treatment arms.

Arm 1 hypofractionated dosing 28 fractions x 2,5 Gy over 38 days (prostate 28 x 2,5Gy - 70Gy, seminal vesicles 28 x 2Gy - 56 Gy, node lympaticus ( if Rouch formula> 15% or N1) 28 x 1,8 Gy

• 50,4 Gy).

Arm II hypofractionated dosing 20 fractions x 3 Gy over 26day (prostate 20 x 3Gy - 60Gy, seminal vesicles 20 x 2,5Gy - 50 Gy, node lympaticus ( if if Rouch formula> 15% or N1 ) 20 x 2,2 Gy - 44 Gy).

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

Related Conditions & MeSH terms

• Genital Neoplasms
• Neoplasms
• Prostatic Neoplasms

• NCT number: NCT03827616
• Study type: Interventional
• Source: Tatarstan Cancer Center
• Status: Enrolling by invitation
• Phase: Phase 2
• Start date: January 25, 2019
• Completion date: February 1, 2030