Document 0094 DOCN M9440094 TI Trial of immunosuppression in amyotrophic lateral sclerosis using total lymphoid irradiation [see comments] DT 9404 AU Drachman DB; Chaudhry V; Cornblath D; Kuncl RW; Pestronk A; Clawson L; Mellits ED; Quaskey S; Quinn T; Calkins A; et al; Johns Hopkins University, School of Medicine, Baltimore, MD; 21287-7519. SO Ann Neurol. 1994 Feb;35(2):142-50. Unique Identifier : AIDSLINE MED/94152998 CM Comment in: Ann Neurol 1994 Feb;35(2):129-30 AB Although the cause of amyotrophic lateral sclerosis (ALS) remains unknown, recent studies have suggested an autoimmune mechanism of pathogenesis. Previous trials of immunosuppressive treatment have yielded inconclusive results. Our study was designed to determine whether more powerful and prolonged immunosuppression, produced by total lymphoid irradiation (TLI), would alter the course of ALS. In a double-blind, randomized, placebo-controlled study, 30 patients with classic ALS were treated with TLI, and 31 were given sham radiation. Quantitative measurements of muscle strength, functional motor activity, and humoral and cellular immune status were followed for 2 years, or until death or respirator dependence. Motor function in the TLI-treated and control groups showed no significant differences throughout the study. Overall survival was not significantly different in the TLI-treated and control groups. TLI effectively suppressed cellular and humoral immune function throughout the 2-year study period. Analysis of the relationship between immunosuppression and motor functions showed no consistent effect of treatment. We conclude that powerful and prolonged immunosuppression produced by TLI did not benefit patients with ALS. This fails to support the concept of an autoimmune mechanism of pathogenesis of ALS. DE Amyotrophic Lateral Sclerosis/IMMUNOLOGY/*RADIOTHERAPY CD4-CD8 Ratio Double-Blind Method Human Immunity *Immunosuppression Leukocyte Count Placebos Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S. CLINICAL TRIAL JOURNAL ARTICLE RANDOMIZED CONTROLLED TRIAL SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).