ACTRIMS (Americas Committee for Treatment and Research in Multiple Sclerosis) is a professional network for health professionals and researchers working in multiple sclerosis in the USA and Canada. The organisation supports junior clinicians, publishes MS specific research, and holds an annual MS conference. It is sometimes held jointly with the Consortium of MS Centers (CMSC).
The equivalent organisation in Europe is ECTRIMS (European Committee for Treatment and Research In Multiple Sclerosis). Every three years the two organisations hold a joint conference. The 2020 conference was held virtually due to the pandemic. The next joint meeting date has not been announced, although both groups plan to hold their own meetings in the meantime.