Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: An Exploratory, Randomized, Double-Blind, Crossover Study to Compare the Efficacy and Safety of BIIB074 Versus Placebo in the Treatment of Primary Inherited Erythromelalgia
Brief Summary: The primary objective of the study is to investigate the efficacy of repeat oral dosing of BIIB074 on paroxysmal pain in participants with Primary Inherited Erythromelalgia (EM). The secondary objective of the study is to investigate the efficacy of repeat oral dosing of BIIB074 on varying additional aspects of pain in participants with EM; and to investigate the safety and tolerability of repeat oral dosing of BIIB074 in participants with EM.