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Study identifier: NCT06835725 Synced from ClinicalTrials.gov · July 30, 2026
● Recruiting

Phase II Randomized Trial of 2 Versus 5 Fraction Prostate Stereotactic Ablative Radiotherapy for Intermediate Risk Prostate Cancer

Condition: Prostate CA  ·  Sponsor: British Columbia Cancer Agency

PhasePhase 2
Planned participants100
Who can joinMale, 18 Years to no upper limit
Healthy volunteersNo

About this study

Prostate cancer is a common cancer, and a significant cause of cancer death in men. There are many potentially curative treatment options for prostate cancers that have not spread. A relatively recent option is called prostate stereotactic ablative radiotherapy (SABR). SABR is a form of external beam radiotherapy, where patients receive a small number (5-7) of treatments (also called fractions) of radiation delivered in a highly accurate and precise fashion. Standard prostate SABR is generally given in 5 fractions and has been shown to be at least as effective as conventional external beam radiotherapy. Disease control with SABR appears excellent, and it compares favorably to surgery in terms of side effects and quality of life. In theory, reducing the number of fractions from 5 to 2 may improve disease control and reduce side effects, in addition to providing added convenience for patients. Small studies suggest prostate SABR in 2 fractions may be highly effective and well tolerated. However, there is little available data comparing 2 and 5 fraction SABR head to head to tell us which is superior. Two fraction SABR involves delivery of 2 large dose fractions of radiotherapy which could result in significant side effects if proper precautions are not taken. The use of continuous tracking of the prostate gland position during treatment delivery reduces the risk of missing the prostate or overdosing organs near by. Such tracking has been shown to reduce bladder side effects. A…

This description comes directly from the study's public registry record.

Talk to the study team

Cathy Tran  ·  250 519 5500  ·  cathy.tran@bccancer.bc.ca

Always discuss trial participation with your own doctor first.

Locations (2)

BC Cancer Radiation OncologySurrey, British Columbia, CanadaRecruiting
BC Cancer Radiation OncologyVictoria, British Columbia, CanadaRecruiting

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Source record: clinicaltrials.gov/study/NCT06835725