Factors associated with slow progression in Huntington's disease

R. H. Myers, D. S. Sax, W. J. Koroshetz, C. Mastromauro, L. A. Cupples, D. K. Kiely, F. K. Pettengill and E. D. Bird
Department of Neurology, Boston University School of Medicine, MA 02118.

The rate of disease progression was assessed for 42 persons affected by Huntington's disease who had been neurologically examined at least six times and followed up for at least 3 years. Disease progression was assessed by a disability rating scale administered at each examination. Slow progression was associated with older age at onset of disease and with heavier weight (body mass index) at the first examination. Men tended to have a slower disease progression than did women, and this was particularly evident among men inheriting Huntington's disease from affected mothers. Neither the butyrophenone haloperidol nor the tricyclic antidepressant imipramine were related to rate of progression. Assessments of depression, hostility, and tobacco use were also unrelated to rate of progression. Clinical trials in Huntington's disease should consider these factors when designing therapeutic studies.

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