Study of Thymic Hormone Therapy for Histiocytosis X
Abstract
Abstract Sir.—The optimal treatment of patients with histiocytosis X remains uncertain. Preliminary clinical studies1-6 have demonstrated that a thymic hormone preparation may be a useful therapy for this disease. The Food and Drug Administration is sponsoring a clinical trial of Suppressin A, one such thymic hormone drug. The purpose of this prospective, randomized, double-blind, placebo-controlled study is to determine if Suppressin A is biologically active in histiocytosis X. I am...