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A randomised, double blind, parallel, placebo controlled, drug-drug interaction study to investigate the safety, tolerability and pharmacokinetics of multiple doses of HTL0018318 given alone and in combination with donepezil at steady state in elderly volunteers.

* To evaluate the safety and tolerability of adding multiple oral doses of HTL0018318 in elderly volunteers taking donepezil at steady state.* To compare the pharmacokinetic profiles of HTL0018318 and donepezil when given alone and in combination at…

A Study to Evaluate the Safety, Tolerability and Pharmacokinetics of Single and Multiple Doses of Donepezil with Glycopyrrolate or Trospium in Elderly Volunteers

Primary objectivesPart 1To evaluate the single dose safety and tolerability of donepezil 10 mg when administered with placebo, glycopyrrolate or trospiumPart 2To evaluate the safety and tolerability of donepezil when given with concomitant placebo,…