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Clinical Trial Summary

The AFFIRM trial tests the safety and clinical feasibility of MR-guided hypofractionated focal boost radiotherapy for patients with locally advanced prostate cancer. External beam radiotherapy combined with androgen deprivation therapy is considered as the treatment of choice for patients with locally advanced non-metastatic prostate cancer with seminal vesicle invasion.The long-term results of the multicentre phase III study (FLAME trial) showed that addition of an isotoxic focal boost to the intraprostatic lesion improves biochemical disease free survival in intermediate to high-risk patients without impacting toxicity and quality of life. This focal boost strategy is now proven for a conventional fractionation scheme (35 fractions). The current trend in radiotherapy for prostate cancer is (extreme) hypofractionation, reducing the number of fractions. For locally advanced prostate cancer, however, the data on extreme hypofractionation are scarce.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT05373316
Study type Interventional
Source Radboud University Medical Center
Contact Casper Reijnen, MD, PhD
Phone 003124 361 4505
Email casper.reijnen@radboudumc.nl
Status Not yet recruiting
Phase Phase 2
Start date December 1, 2022
Completion date July 1, 2029

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