In light of the recent data indicating increased late grade 3 to 5 toxicities (LTOX3) after hypofractionated salvage radiation therapy, will you continue to offer these regimes to patients?
The recent 13-year data for hypofractionated salvage radiation show worse long-term side effects in this patient population. As hypofractionated regimens have gained popularity in recent years, should these be scaled back?
Radiation Oncologist
Prior Literature: Prior non-randomized studies seem to suggest excess toxicity with hypofractionated PORT (e.g., Cozzarini et al., PMID 24985964, Tandberg et al., PMID 29559284). In part for this reason, a phase III, randomized controlled non-inferiority trial, NRG-GU003, was conducted (Buyyounouski...
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Radiation Oncologist at The Oregon Clinic-Radiation Oncology West 100% agree with the last paragraph. Multiple Urolo...
Radiation Oncologist at Beth Israel Deaconess Medical Center/Harvard Medical School Excellent summary of the published data. One facto...
Answer from: Radiation Oncologist at Community Practice
I think future radiation oncology physician-historians will cite this as yet another debacle of COVID. Trying to use hypofractionation and unlearn the lessons of decades of radiotherapy experience with fractionation and late effects, from the 1960s-2010s, seems now to have led to disasters which man...
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Radiation Oncologist at Southern California Permanente That may be one interpretation, however, this regi...
Answer from: Radiation Oncologist at Academic Institution
This was not a randomized trial, so we cannot be sure of the impact of hypofractionation. But the increase in late grade ≥3 toxicity from 2 years to 13.5 years of median follow-up is dramatic and should give us pause. It is also a warning that we need very long-term toxicity outcomes data in more...
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Radiation Oncologist at Kansas City VA Medical Center In my opinion, by sculpting the volumes slice by s...
Answer from: Radiation Oncologist at Community Practice
It does bring up the issue of longer follow-up for late effects, total dose delivered 65 Gy in 26 fractions (do we need such a high dose for BCR with no visible target?), and CTV delineation (RTOG atlas treats a lot more bladder than some recent recurrence patterns seen on PSMA).
100% agree with the last paragraph. Multiple Urolo...
Excellent summary of the published data. One facto...