Clearly you did not read the manuscript and have minimal grasp of radiation biology. They used low dose SBRT, which did have improved QOL/reduced toxicity in select domains, but will not show superiority with those doses which are not standard today.
Most people who use that Rx give a 120% hotspot, but they did not even allow dose much over 38 Gy to hotspots!
PACE-B gave Rx of 40 Gy with hotspots over 44 Gy. This may not seem like a lot to you, but it is a big difference.
Hilarious this is coming from the biggest proponent of focal therapy who cant even run a single RCT to prove it helps patients.
Presumably SBRT for localised favourable intermediate PCa will be rolled back following this RCT of 698 patients randomised in 136 international centres; designed and powered a priori as superiority of cancer control for SBRT over MH-IMRT, but wasn’t?
jamanetwork.com/journals/jam…