Proton and conventional radiation for prostate cancer after surgery

Postoperative or Salvage Radiotherapy for Node Negative Prostate Cancer Following Radical Prostatectomy

Not applicable Interventional Proton Collaborative Group · NCT00969111

This study is testing whether proton radiation or conventional radiation with hormone therapy can help men with recurring prostate cancer after surgery feel better and improve their chances of recovery.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment70 (estimated)
Ages18 Years and up
SexMale
SponsorProton Collaborative Group Research network
Drugs / interventionschemotherapy, radiation, methotrexate
Locations4 sites (Little Rock, Arkansas and 3 other locations)
Trial IDNCT00969111 on ClinicalTrials.gov

What this trial studies

This study investigates the effects of proton radiation and conventional radiation combined with hormonal therapy on prostate cancer that has recurred or has a risk of returning after radical prostatectomy. Patients will receive various radiation treatments, including intensity-modulated radiation therapy (IMRT) and proton boosts to the prostate bed. The study aims to evaluate both the positive and negative effects of these treatments on prostate cancer outcomes.

Who should consider this trial

Good fit: Ideal candidates are men who have undergone radical prostatectomy for prostate cancer and have a maximum PSA value of 20 ng/ml.

Not a fit: Patients with evidence of distant metastasis, prior systemic chemotherapy, or active inflammatory bowel disease affecting the rectum may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more effective treatment option for patients with recurrent prostate cancer, potentially improving their prognosis.

How similar studies have performed: Other studies have shown promise with proton therapy for prostate cancer, indicating that this approach is gaining traction in the field.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Prostate cancer treated primarily with open, laparoscopic or robotically assisted prostatectomy.
* Maximum PSA value of 20 ng/ml.

Exclusion Criteria:

* Evidence of distant metastasis (M1).
* Prior systemic chemotherapy for any reason.
* Previous irradiation to the pelvis that would compromise the ability to deliver the prescribed study treatment.
* Active inflammatory bowel disease (Crohn's disease, diverticulitis or ulcerative colitis) affecting the rectum. (Non-active diverticulitis and Crohn's disease not affecting the rectum are allowed).
* History of hip replacement.
* Prior or concurrent cancer, other than non-melanomatous skin cancer, unless disease free for at least 5 years.
* Taking Saw Palmetto or methotrexate and unable or unwilling to discontinue its use during radiation.

Where this trial is running

Little Rock, Arkansas and 3 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Prostate CancerProton Radiation, Prostate Cancer
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.