The Accelerated Cure project mentioned this small Phase I trial in their news section today. Riluzole is a drug for ALS. It's always good news when they test a drug for PPMS.
Glutamate inhibition in MS: the neuroprotective properties of riluzole
J Neurol Sci. 2005 Jun 15;233(1-2):113-5. Epub 2005 Apr 20.
Killestein J, Kalkers NF, Polman CH.
Department of Neurology, VU Medical Centre, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands. J.Killestein@vumc.nl