🏛️ Verified NIH Record • Updated 2026-06-22

Testing Shorter Duration Radiation Therapy Versus the Usual Radiation Therapy in Patients With High Risk Prostate Cancer (NCT05946213)

The Phase III 'High Five Trial' Five Fraction Radiation For High-Risk Prostate Cancer

🟢 Recruiting Phase3 🩺 Clinical Procedure Protocol Sponsor: NRG Oncology

🩺 Plain-English Summary (8th-Grade Level)

This phase III trial compares stereotactic body radiation therapy (SBRT), (five treatments over two weeks using a higher dose per treatment) to usual radiation therapy (20 to 45 treatments over 4 to 9 weeks) for the treatment of high-risk prostate cancer. SBRT uses special equipment to position a patient and deliver radiation to tumors with high precision. This method may kill tumor cells with fewer doses over a shorter period of time. This trial is evaluating if shorter duration radiation prevents cancer from coming back as well as the usual radiation treatment.

Who can join: To join this study, participants generally need to meet the listed inclusion criteria (16 items) and avoid the listed exclusions (0 items).

Location: University of Alabama at Birmingham Cancer Center — Birmingham, Alabama

Age range: 18 Years

🧪 Interventions in This Study

  • Biospecimen Collection (PROCEDURE)
  • Bone Scan (PROCEDURE)
  • Computed Tomography (PROCEDURE)
  • External Beam Radiation Therapy (RADIATION)
  • Magnetic Resonance Imaging (PROCEDURE)
  • Positron Emission Tomography (PROCEDURE)
  • Quality-of-Life Assessment (OTHER)
  • Questionnaire Administration (OTHER)
  • Stereotactic Body Radiation Therapy (RADIATION)

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Check every box below. If you can check all of them, you may meet the study's basic screening requirements (final eligibility is confirmed by the site team).

🔍 Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.

📍 All Participating Trial Locations (413 Sites)

Showing the first 25 of 413 sites.

  • University of Alabama at Birmingham Cancer Center — Birmingham, Alabama
  • The Kirklin Clinic at Acton Road — Birmingham, Alabama
  • Lewis and Faye Manderson Cancer Center — Tuscaloosa, Alabama
  • University of Arkansas for Medical Sciences — Little Rock, Arkansas
  • Kaiser Permanente-Deer Valley Medical Center — Antioch, California
  • Tower Cancer Research Foundation — Beverly Hills, California
  • Kaiser Permanente Dublin — Dublin, California
  • Kaiser Permanente-Fremont — Fremont, California
  • Washington Hospital — Fremont, California
  • Fresno Cancer Center — Fresno, California
  • Kaiser Permanente Fresno Orchard Plaza — Fresno, California
  • Kaiser Permanente-Fresno — Fresno, California
  • UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care — Irvine, California
  • Cedars-Sinai Medical Center — Los Angeles, California
  • Kaiser Permanente- Modesto MOB II — Modesto, California
  • Kaiser Permanente-Modesto — Modesto, California
  • Kaiser Permanente Oakland-Broadway — Oakland, California
  • Kaiser Permanente-Oakland — Oakland, California
  • UC Irvine Health/Chao Family Comprehensive Cancer Center — Orange, California
  • Kaiser Permanente-Rancho Cordova Cancer Center — Rancho Cordova, California
  • Kaiser Permanente- Marshall Medical Offices — Redwood City, California
  • Kaiser Permanente-Richmond — Richmond, California
  • Rohnert Park Cancer Center — Rohnert Park, California
  • Kaiser Permanente-Roseville — Roseville, California
  • The Permanente Medical Group-Roseville Radiation Oncology — Roseville, California

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗