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Cited by 534Cholinesterase and Neurodegenerative DiseasesDementia and Cognitive Impairment ResearchAlzheimer's disease research and treatments

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Rivastigmine for Alzheimer’s disease.

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Birks, Jacqueline S, Chong, Lee-Yee, Grimley Evans, John·2015·Cochrane Database of Systematic Reviews
DOI 10.1002/14651858.cd001191.pub4PMC PMC7050299
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Abstract

BACKGROUND: Alzheimer's disease is the commonest cause of dementia affecting older people. One of the therapeutic strategies aimed at ameliorating the clinical manifestations of Alzheimer's disease is to enhance cholinergic neurotransmission in the brain by the use of cholinesterase inhibitors to delay the breakdown of acetylcholine released into synaptic clefts. Tacrine, the first of the cholinesterase inhibitors to undergo extensive trials for this purpose, was associated with significant adverse effects including hepatotoxicity. Other cholinesterase inhibitors, including rivastigmine, with superior properties in terms of specificity of action and lower risk of adverse effects have since been introduced. Rivastigmine has received approval for use in 60 countries including all member states of the European Union and the USA. OBJECTIVES: To determine the clinical efficacy and safety of rivastigmine for patients with dementia of Alzheimer's type. SEARCH METHODS: We searched ALOIS, the Cochrane Dementia and Cognitive Improvement Group Specialized Register, on 2 March 2015 using the terms: Rivastigmine OR exelon OR ENA OR "SDZ ENA 713". ALOIS contains records of clinical trials identified from monthly searches of a number of major healthcare databases (Cochrane Library, MEDLINE, EMBASE, PsycINFO, CINAHL, LILACS), numerous trial registries and grey literature sources. SELECTION CRITERIA: We included all unconfounded, double-blind, randomised, controlled trials in which treatment with rivastigmine was administered to patients with dementia of the Alzheimer's type for 12 weeks or more and its effects compared with those of placebo in a parallel group of patients, or where two formulations of rivastigmine were compared. DATA COLLECTION AND ANALYSIS: One review author (JSB) applied the study selection criteria, assessed the quality of studies and extracted data. MAIN RESULTS: A total of 13 trials met the inclusion criteria of the review. The trials had a duration of between 12 and 52 weeks. The older trials tested a capsule form with a dose of up to 12 mg/day. Trials reported since 2007 have tested continuous dose transdermal patch formulations delivering 4.6, 9.5 and 17.7 mg/day.Our main analysis compared the safety and efficacy of rivastigmine 6 to 12 mg/day orally or 9.5 mg/day transdermally with placebo.Seven trials contributed data from 3450 patients to this analysis. Data from another two studies were not included because of a lack of information and methodological concerns. All the included trials were multicentre trials and recruited patients with mild to moderate Alzheimer's disease with a mean age of about 75 years. All had low risk of bias for randomisation and allocation but the risk of bias due to attrition was unclear in four studies, low in one study and high in two studies.After 26 weeks of treatment rivastigmine compared to placebo was associated with better outcomes for cognitive function measured with the Alzheimer's Disease Assessment Scale-Cognitive (ADAS-Cog) score (mean difference (MD) -1.79; 95% confidence interval (CI) -2.21 to -1.37, n = 3232, 6 studies) and the Mini-Mental State Examination (MMSE) score (MD 0.74; 95% CI 0.52 to 0.97, n = 3205, 6 studies), activities of daily living (SMD 0.20; 95% CI 0.13 to 0.27, n = 3230, 6 studies) and clinician rated global impression of changes, with a smaller proportion of patients treated with rivastigmine experiencing no change or a deterioration (OR 0.68; 95% CI 0.58 to 0.80, n = 3338, 7 studies).Three studies reported behavioural change, and there were no differences compared to placebo (standardised mean difference (SMD) -0.04; 95% CI -0.14 to 0.06, n = 1529, 3 studies). Only one study measured the impact on caregivers using the Neuropsychiatric Inventory-Caregiver Distress (NPI-D) scale and this found no difference between the groups (MD 0.10; 95% CI -0.91 to 1.11, n = 529, 1 study). Overall, participants who received rivastigmine were about twice as likely to withdraw from the trials (odds ratio (OR) 2.01, 95% CI 1.71 to 2.37, n = 3569, 7 studies) or to experience an adverse event during the trials (OR 2.16, 95% CI 1.82 to 2.57, n = 3587, 7 studies). AUTHORS' CONCLUSIONS: Rivastigmine (6 to 12 mg daily orally or 9.5 mg daily transdermally) appears to be beneficial for people with mild to moderate Alzheimer's disease. In comparisons with placebo, better outcomes were observed for rate of decline of cognitive function and activities of daily living, although the effects were small and of uncertain clinical importance. There was also a benefit from rivastigmine on the outcome of clinician's global assessment. There were no differences between the rivastigmine group and placebo group in behavioural change or impact on carers. At these doses the transdermal patch may have fewer side effects than the capsules but has comparable efficacy. The quality of evidence is only moderate for all of the outcomes reviewed because of a risk of bias due to dropou

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Metadata

Authors
Birks, J. S., Chong, L.-Y., & Grimley Evans, J.
Affiliations
  • University of Oxford (GB)
  • Cochrane (GB)
  • University of Oxford; Division of Clinical Geratology, Nuffield Department of Clinical Medicine; Radcliffe Infirmary Woodstock Road Oxford UK OX2 6HE
ORCID
Birks, Jacqueline S
Venue
Cochrane Database of Systematic Reviews
Publisher
Wiley
Published
2015-09-22
Volume
38
Issue
2
Pages
15-6
ISSN
  • 1361-6137 (ISSN-L)
  • 1465-1858
DOI
10.1002/14651858.cd001191.pub4
PMC
PMC7050299
OpenAlex
W2098999434
Cited by
534
References
147
Citations by year
2026: 10 · 2025: 15 · 2024: 24 · 2023: 25 · 2022: 23 · 2021: 29 · 2020: 28 · 2019: 30 · 2018: 30 · 2017: 21 · 2016: 25 · 2015: 18
FWCI
3.93
Type
journal article
Language
en
Open access
Locations
  • Cochrane Database of Systematic Reviews (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pharmacology (medical) › Cholinesterase and Neurodegenerative Diseases
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
Keywords
rivastigmine, Alzheimer's disease, dementia, cholinesterase inhibitors, acetylcholinesterase inhibition, transdermal patch, oral dosage forms, cognitive function, functional status, adverse effects, hepatotoxicity, tacrine, placebo comparison, treatment efficacy and safety, older adults, dose comparison
MeSH terms
Rivastigmine, Alzheimer Disease, Carbamates, Cholinesterase Inhibitors, Humans, Randomized Controlled Trials as Topic, Neuroprotective Agents, Phenylcarbamates

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