Randomized MRI-Guided Prostate Boosts Via Initial Lattice Stereotactic vs Daily Moderately Hypofractionated Radiotherapy

NCT02307058 · Status: ACTIVE_NOT_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 164

Last updated 2026-02-23

No results posted yet for this study

Summary

The purpose of this research study is to learn about: 1) improving control of prostate cancer using an extra high dose radiation treatment to the MRI defined high risk tumor areas, in addition to the standard radiation treatment to the rest of the prostate; 2) preserving quality of life by reducing dose to the nearby organs at risk around the prostate; and 3) establishing the relationship of pre- and post-treatment MRI to MRI-directed biopsy results at 2-2.5 years after treatment.

Conditions

Interventions

RADIATION

LEAD RT

The multiparametric-MRI (MP-MRI) defined Gross Tumor Volume (GTV) will receive 12-14 Gy on the first day of treatment and then the prostate plus proximal seminal vesicles (SV), the Clinical Target Volume (CTV)1, will receive 76 Gy in 38 fractions (Fxs) at 2.0 Gy per Fx. For High Risk patients, the distal SVs may be treated to 56 Gy in 38 Fxs or full dose (CTV2), and the pelvic lymph nodes may be treated to 56 Gy in 38 Fxs (CTV3).

RADIATION

HEIGHT RT

The MRI defined GTV(s) will receive a higher dose per day than the CTV by dose painting. The GTV(s) will receive an absolute dose of 91.2 Gy. Assuming an α/β ratio of 3.0, this would be equivalent to 98.5 Gy in 2.0 Gy fractions. The prostate plus proximal seminal vesicles (CTV1) will receive 76 Gy in 38 fractions (Fxs) at 2.0 Gy per Fx. For High Risk patients, the distal SVs (CTV2) may be treated to 56 Gy in 38 Fxs or full dose, and the pelvic lymph nodes (CTV3) may be treated to 56 Gy in 38 Fxs.

Sponsors & Collaborators

  • University of Miami

    lead OTHER

Principal Investigators

  • Alan Pollack, MD, PhD · University of Miami

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
35 Years
Max Age
85 Years
Sex
MALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2015-02-05
Primary Completion
2029-07-31
Completion
2031-07-31
FDA Device
Yes

Countries

  • United States

Study Locations

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Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02307058 on ClinicalTrials.gov