Gleason 6 T3a is a little bit of a unusual combination, which might call the Gleason 6 into question a bit.
Being T3a, they will probably still want to hit it quite hard.
The higher power radiotherapy treatments delivered over shorter periods benefit less from hormone therapy, so you might ask about something like HDR Brachytherapy where a shorter or even no dose of HT might be required. This can be combined with a reduced dose of external beam which can help to mop up any undetected micro-mets around the prostate, and this combination is called HDR Boost although the external beam would benefit from some HT. Stereotactic radiotherapy (SABR/SBRT) might be another option with less need for HT. Some places might also consider LDR Brachytherapy depending if they think they can catch the T3a (locally advanced) part with it. With a Gleason 6, they wouldn't normally do HT, but being T3a, I would question if he's really Gleason 6.
If he does have HT, there are a few types. The tablets (Bicalutamide) have fewer side effects with the exception of higher risk of breast gland growth. The GnRH Agonist injections (Prostap, Zoladex, Decapeptyl) are more powerful and effective, but do have risks of coronary issues. The GnRH Antagonist injection (Firmagon/Degarelix) is similar to the other injections in effectiveness, slightly less risk of coronary issues, but is a less pleasant injection and given more frequently (and much more expensive). I don't know how the tablets compare with the injections for coronary issues, but unlike the injections, they don't tend to raise blood pressure, cholesterol, and blood glucose, so they may be better.
Obviously something to discuss with your oncologist. Brachytherapy and Stereotactic radiotherapy are only available at some centres. If your centre doesn't do them, they will probably not be experts in their suitability and you would have to ask for a referral elsewhere if you wanted to ask more about those treatments.
Edited by member 31 Oct 2022 at 09:29
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