Three MS researchers debate MS classifications on: July 05, 2023, 09:48:58 pm #1 I'm using this link that was posted on another MS support board and hoping that the people there won't mind. It's a dialogue among three researchers in the MS field that appeared in 2020 but is still relevant--on "Food and Drug Administration Multiple Sclerosis Categorization Changes" in Practical Neurology (February 2020): Point/Counterpoint: Food and Drug Administration Multiple Sclerosis Categorization Changes None practicalneurology.com Logged MS Speaks--online for 20 yearsSPMS, diagnosed 1980. Avonex 2001-2004. Copaxone 2007-2010. Glatopa (glatiramer acetate 40mg 3 times/week) 12/16/20 - 3/16/24.