Under the following link you'll find the newest (two weeks old!) review of Peyronies Disease-treatments (written by Benjamin A Sherer and Laurence A Levine). I have not had the chance to study the paper in detail, but will do so in the next days. The most interesting part on first sight is their skepticism of oral treatments.
http://www.sciencedirect.com/science/article/pii/S009042951600145X
(the paper is not freely available, but there are ways around that limitation)
I will post my thoughts once I had the time to read the paper in detail :-)
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Excellent find Dros, this is a really interesting read.
Edit. Ok that was an excellent paper. Should be required reading for Peyronie's sufferers and any urologist who treats Peyronie's. (https://www.docdroid.net/dFJ1GP3/sherer2016.pdf.html%5B/url)
This review, which is quite good, is no longer available. It had some insight into traction that I cannot find anywhere else. If anyone can find it, please let me know!
Re insights into traction, this guy lists all the studies on traction and Peyronie's - Treating Peyronie's with Penis Extenders - Studies and Evidence (http://ahealthypenis.com/peyronies.html)