Failure of cholinergic agonist RS-86 to improve cognition and movement in PSP despite effects on sleep.

Abstract:

:Postmortem studies of patients with progressive supranuclear palsy (PSP) have demonstrated loss of cholinergic neurons in the striatum, nucleus basalis of Meynert, and the pedunculopontine nucleus. These findings suggest that cholinergic drugs might be an effective treatment for this disease. We studied the efficacy of RS-86, a direct cholinergic agonist, upon motor abilities, eye movements, and psychometric performance in 10 patients with PSP during a 9-week placebo-controlled, double-blinded, crossover trial. Glycopyrrolate, a peripheral anticholinergic drug, was given throughout the trial to minimize cholinergic side effects. We used changes in rapid eye movement (REM) sleep to assess the degree of cholinergic activation achieved by treatment. Despite the enhancement of cholinergic activity in the CNS as indicated by increases in REM sleep latency and REM sleep time, RS-86 did not improve motor signs, eye movements, or cognition. Pharmacologic replacement of the cholinergic deficits in PSP does not result in significant clinical benefit.

journal_name

Neurology

journal_title

Neurology

authors

Foster NL,Aldrich MS,Bluemlein L,White RF,Berent S

doi

10.1212/wnl.39.2.257

subject

Has Abstract

pub_date

1989-02-01 00:00:00

pages

257-61

issue

2 Pt 1

eissn

0028-3878

issn

1526-632X

journal_volume

39

pub_type

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