@jeffmarc Dr. Stone claims in the talk that he controlled when the brachytherapy was administered for all the centers in the TRIP study. He taught or advised all the participating centers in Japan on how to administer BT. But he didn't set up the study. The Japanese researchers apparently are the ones that decided T3a.
Keep in mind that he has been a pioneer in figuring out the way to compare different RT treatments, i.e. this Biologically Effective Dose concept, or BED he talks about. So he had seen that most BT studies were not publishing their actual delivered dose figures, rather, they published the dose they planned to administer. He was emphatic saying BT practitioners all know that the planned dose doesn't always get achieved. He felt that the external beam people were going to be able to deliver what they planned more than the BT people, so he had the BT people administer their planned dose, then calculate what they actually delivered, then he had the EBRT people administer more or less of what they planned so the BED of all study participants would be as nearly the same as possible. He feels this is a weakness of the Ascende-RT trial, i.e. more total dose than planned because of inexperienced practitioners, which resulted in the high number of grade 3 complications they reported, giving BT a bad name.
Dr. Stone is about as eminent in the BT and RO field as they come, so I don't think this BT first approach is anything that controversial.
I am very interested in getting EBRT with a BT boost. I am c3Tb. My RO says he runs the BT at the NCI facility he works at, and that I am not a candidate because of a 62 cc prostate and a too high IPSS score.
So I'm tracking down research that indicates there is no problem with larger prostates and BT. I found a European document that states they changed their previous limit and now allow much larger prostates due to new research published by Dr. Stone among others.
I'm looking for studies that allow BT on patients who have had recent corrective "outlet" therapy. It appears that in Europe, I would be a candidate for EBRT + BT boost. I like the RO who says I'm not a candidate, but if I can't convince him I will probably be looking for a clinical study or a practitioner who will consider my case more favorably.
If I find a study of >pT3b I'll let you know. Dr. John Sylvester, another proponent of BT, said in a talk I've been studying that high risk cases benefit the most from BT.
@climateguy
It is interesting that you bring up the fact that they said you’re not eligible for BT because your prostate is too big. Just last night, I was in a reluctant brotherhood bi-monthly meeting And one of the guys there said he had the same problem. They have to put in the seeds before they do the BT and with a very large prostate the seeds have to be in such a large area that it just doesn’t work. He was definitely frustrated by it.
I’d be real interested in seeing a study like the Trip study where they really did take on advanced cases.
I know in my case stopping ADT after eight years, could be a problem. I have BRCA2, which makes my cancer very aggressive. When I was on Zytiga, I stopped taking one pill out of four for 18 days to see if it would help with the brain fog. In those 18 days my PSA went from .2 to 1. My oncologist is concerned that if I stop ADT and my testosterone rises I’m going to have the same sort of problem. Went back to four pills of my PSA went back down. I wonder if other advanced cases that have things like intraductal, large Cribriform, seminal vesicle invasion, EPE or ECE Could have the same problem.