Ablative radiotherapy in castration-resistant prostate cancer.
Tobias Hölscher, Fabian Lohaus, Lydia Koi et al.
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In 30 seconds
This randomized phase II trial evaluated the efficacy of metastasis-directed therapy (MDT) in patients with castration-resistant prostate cancer (CRPC) and up to five metastases. The study found that PSA progression within one year occurred in 44% of the MDT group compared to 75% in the observation group, with a median time to PSA progression of 12.4 months for MDT versus 2.9 months for observation.
Key findings
- PSA progression within 1 year was 44% in the MDT group vs 75% in the OBS group (P = 0.14).
- The median time to PSA progression was significantly longer in the MDT arm at 12.4 months compared to 2.9 months in the OBS arm (P = 0.03).
Why it matters
The findings suggest that metastasis-directed therapy may prolong the time to PSA progression in patients with oligometastatic CRPC, which could influence treatment strategies in this population.
What to keep in mind
The study's limitations include its single-centre design and small sample size at the interim analysis.