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This database contains 202 studies, archived under the term: "drug effects"

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A randomized pilot clinical trial of the safety of pioglitazone in treatment of patients with Alzheimer disease

Objectives: To evaluate the safety of the peroxisome proliferator-activated receptor gamma agonist pioglitazone in nondiabetic patients with Alzheimer disease (AD) and to explore treatment effect sizes on clinical outcomes.; Design: Double-blind, placebo-controlled randomized controlled trial of 18-month duration.; Setting: Two academic medical center outpatient clinics.; Patients: Nondiabetic patients meeting research criteria for probable AD were […]

Effect of memantine on resting state default mode network activity in Alzheimer’s disease

Background: Memantine is an approved symptomatic treatment for moderate to severe Alzheimer’s disease that reduces the excitotoxic effects of hyperactive glutamatergic transmission. However, the exact mechanism of the effect of memantine in Alzheimer’s disease patients is poorly understood. Importantly, the default mode network (DMN), which plays a key role in attention, is hypoactive in Alzheimer’s […]

Reduced prostaglandin F2 alpha release from blood mononuclear leukocytes after oral supplementation of omega3 fatty acids: the OmegAD study

Omega-3 fatty acids, e.g., dokosahexaenoic acid (DHA) and eikosapentaenoic acid (EPA), ameliorate inflammatory reactions by various mechanisms, but the role of prostaglandins remains unclear. Our aim was to determine if dietary supplementation with a DHA-rich fish oil influenced the release of PGF(2alpha) from peripheral blood mononuclear cells (PBMC). In the OmegAD study, 174 Alzheimer disease […]

A multi-center randomized proof-of-concept clinical trial applying ¹⁸FFDG-PET for evaluation of metabolic therapy with rosiglitazone XR in mild to moderate Alzheimer’s disease

Here we report the first multi-center clinical trial in Alzheimer’s disease (AD) using fluorodeoxyglucose positron emission tomography ([18F]FDG-PET) measures of brain glucose metabolism as the primary outcome. We contrasted effects of 12 months treatment with the PPARγ agonist Rosiglitazone XR versus placebo in 80 mild to moderate AD patients. Secondary objectives included testing for reduction […]

Improved visual hallucination by donepezil and occipital glucose metabolism in dementia with Lewy bodies: the Osaki-Tajiri project

Deficits in the cholinergic system are pronounced in dementia with Lewy bodies (DLB) and are more severe in patients with visual hallucinations (VHs). The aim is to identify the occipital glucose metabolism patterns by positron emission tomography (PET) and the changes following donepezil treatment. 13 DLB patients with VHs were enrolled in the study. After […]

Effect of Rikkunshi-to on appetite loss found in elderly dementia patients: a preliminary study

Background: Functional gastrointestinal symptoms are frequently found in elderly dementia patients. In such a case, we attempt treatment by the administration of antidepressants or second-generation antipsychotics. However, these medications have a risk of side-effects. In the present study, we carried out oral administration of Rikkunshi-to to elderly dementia patients with appetite loss, and examined its […]

An MRI substudy of a donepezil clinical trial in mild cognitive impairment

A magnetic resonance imaging (MRI) study was conducted as part of an intervention study in subjects with amnestic mild cognitive impairment (aMCI) to assess donepezil’s treatment effect on brain atrophy. Adults with aMCI were randomly assigned to double-blind treatment with 10 mg/day donepezil hydrochloride or placebo for 48 weeks. Brain MRI scans were acquired at […]

A combination of green tea extract and l-theanine improves memory and attention in subjects with mild cognitive impairment: a double-blind placebo-controlled study

A combination of green tea extract and l-theanine (LGNC-07) has been reported to have beneficial effects on cognition in animal studies. In this randomized, double-blind, placebo-controlled study, the effect of LGNC-07 on memory and attention in subjects with mild cognitive impairment (MCI) was investigated. Ninety-one MCI subjects whose Mini Mental State Examination-K (MMSE-K) scores were […]

Donepezil provides greater benefits in mild compared to moderate Alzheimer’s disease: implications for early diagnosis and treatment

We assessed the cognitive and functional outcomes of donepezil treatment in mild versus moderate Alzheimer’s disease (AD) patients. We performed a 6-month prospective, observational, multicenter study of the progression of cognitive and functionality abilities in a large sample patients with AD who initiated treatment with donepezil in monotherapy. According to baseline mini mental state examination […]

SB-742457 and donepezil in Alzheimer disease: a randomized, placebo-controlled study

Objective: To estimate the treatment effects of SB-742457 and donepezil in Alzheimer disease (AD) in a contemporary clinical trial.; Method: Randomized, controlled, parallel-group, exploratory study with a 4-week, single-blind, placebo run-in phase and 24-week, double-blind treatment phase. Primary endpoints were Clinician’s Interview-Based Impression of Change with caregiver input (CIBIC+) and the Alzheimer’s Disease Assessment Scale-cognitive […]

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