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This database contains 87 studies, archived under the term: "piperidines"

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Methodological improvements in quantifying cognitive change in clinical trials: an example with single-dose administration of donepezil

Objectives: Change in cognitive function in response to a pharmacologic challenge can be observed with greater sensitivity by employing cognitive tests with optimal psychometric properties and a statistical approach that more accurately accounts for individual variability in performance. To demonstrate this approach we examined the cognitive effects of a single acute dose administration of an […]

Effects of donepezil on cortical activation in mild cognitive impairment: a pilot double-blind placebo-controlled trial using functional MR imaging

Background and Purpose: Cholinesterase-inhibitor therapy is approved for treatment of Alzheimer disease; however, application in patients with mild cognitive impairment (MCI) is still under active investigation. The purpose of this study was to determine the effect of such therapy on the neural substrates underlying memory processing in subjects with MCI by using functional MR imaging […]

Clinical effects of high oral dose of donepezil for patients with Alzheimer’s disease in Japan

Background: Donepezil 10 mg/day gained approval in Japan in August 2007 for the treatment of cognitive dysfunction in advanced Alzheimer’s disease.; Methods: We evaluated the efficacy and adverse effects of donepezil when the dose was increased to 10 mg/day in 61 Japanese patients with Alzheimer’s disease. Cognitive function was evaluated using the Revised Hasegawa Dementia […]

Different cholinesterase inhibitor effects on CSF cholinesterases in Alzheimer patients

Background: The current study aimed to compare the effects of different cholinesterase inhibitors on acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) activities and protein levels, in the cerebrospinal fluid (CSF) of Alzheimer disease (AD) patients.; Methods and Findings: AD patients aged 50-85 years were randomized to open-label treatment with oral rivastigmine, donepezil or galantamine for 13 weeks. […]

Donepezil delays progression to AD in MCI subjects with depressive symptoms

Objective: To determine whether the presence of depression predicts higher rate of progression to Alzheimer disease (AD) in patients with amnestic mild cognitive impairment (aMCI) and whether donepezil treatment beneficially affect this relationship.; Methods: The study sample was composed of 756 participants with aMCI from the 3-year, double-blind, placebo-controlled Alzheimer’s Disease Cooperative Study drug trial […]

Donepezil treatment of patients with MCI: a 48-week randomized, placebo-controlled trial

Background: Treatment of mild cognitive impairment (MCI) with cholinesterase inhibitors may improve symptoms.; Methods: In this multicenter, randomized, placebo-controlled trial, subjects with MCI entered a 3-week placebo run-in period followed by 48 weeks of double-blind donepezil (5 mg/day for 6 weeks, then 10 mg/day for 42 weeks) or placebo treatment. Primary efficacy variables included change […]

Effects of donepezil, galantamine and rivastigmine in 938 Italian patients with Alzheimer’s disease: a prospective, observational study

Acetylcholinesterase inhibitors (AChEIs) have been used to improve cognitive status and disability in patients with mild to moderate Alzheimer’s disease (AD). However, while the efficacy of AChEIs (i.e. how they act in randomized controlled trials) in this setting is widely accepted, their effectiveness (i.e. how they behave in the real world) remains controversial. To compare […]

Plasma concentration of donepezil to the therapeutic response of Alzheimer’s disease in Taiwanese

Donepezil has been approved for the treatment for mild-to-moderate Alzheimer’s disease (AD), but the therapeutic response rate varies from 20 to 60%. A higher oral dosage was suggested to have a better therapeutic response in reported results, but the plasma concentration of donepezil was not examined with respect to the therapeutic outcomes in those studies. […]

Errorless practice as a possible adjuvant to donepezil in Alzheimer’s disease

Six individuals with probable Alzheimer’s disease (AD) participated in a phase 1 study employing a repeated measures, parallel baseline design testing the hypothesis that error-free experience during word production practice combined with an acetyl cholinesterase inhibitor would improve confrontation naming ability. While acetyl cholinesterase inhibitors are safe and delay cognition decline associated with AD, improvement […]

Long-term safety and efficacy of donepezil in patients with severe Alzheimer’s disease: results from a 52-week, open-label, multicenter, extension study in Japan

Background/aims: A 6-month, randomized, double-blind, placebo-controlled study was extended to evaluate long-term safety and efficacy of donepezil in community-dwelling Japanese patients with severe Alzheimer’s disease (AD).; Methods: 189 patients were enrolled from the double-blind study into a 52-week, open-label extension study. After a 2- to 8-week washout, donepezil was escalated within 6 weeks to 10 […]

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