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

Trial statusRecruiting
Trial phasePhase 3
Trial typeInterventional
Biological sexMale
Age18+
SponsorNRG Oncology

About this trial

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.

Eligibility criteria

Qualifiers

Pathologically (histologically or cytologically) proven diagnosis of adenocarcinoma of prostate cancer

cT3a-T3b by digital exam or imaging (American Joint Committee on Cancer [AJCC] 8th edition [Ed.]) Note: cT4 by imaging or on digital rectal exam is not allowed

The patient's prostate specific antigen (PSA) value > 20 ng/mL prior to starting androgen deprivation therapy (ADT) Note: Patients taking a 5-alpha reductase inhibitor (ex finasteride or dutasteride) are eligible The baseline PSA value should be doubled for PSAs taken while on 5-alpha reductase inhibitors

Gleason Score of 8-10

Disqualifiers

None

Trial design

Treatments tested in this trial

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

Treatment groups

1,209 Participants
are divided into 2 treatment groups

Sponsors and collaborators