Hi jacknsan,
I agree with JohnT and others that you would have been intermediate risk, but the extracapsular extension (ECE), which stages you at T3a, puts you in the high risk of recurrence category.
I think a conversation with Dr. King will be useful to you (full disclosure-- he's my RO). I happen to know that he's been working on a new high risk protocol using SBRT tailored for cases like yours. What he does is kind of interesting:
• he treats out to about
5-6 mm outside of the prostate (on the side away from the rectum), contouring to any known ECE
• he boosts the dose to any observed lesions or suspicious areas within the prostate
• ADT is optional (it hasn't been observed to be of any extra benefit when used with SBRT).
So, in effect, it's like getting an HDR boost to the prostate with external beam treating the prostate bed, but you get the amplified cancer-killing power of hypofractionation even outside of the capsule without the toxicity of IMRT. Also, it's all done in 5 five minute treatments.
So far, only about
a hundred men nationwide have received this kind of therapy.The oncological and toxicity results in the first 5 years have been excellent.
So far it does not seem that adding ADT to either hypofractionated therapy (SBRT or HDR) increases the effectiveness of the therapy, and it may add to the side effects. Although you are high risk, it is questionable whether ADT would be of any incremental benefit even with LDR or IMRT. It seems to make a difference with Gleason 4+3 but not with 3+4:
Is androgen deprivation therapy necessary in all intermediate-risk prostate cancer patients treated in the dose escalation era?