Evidence map›Paper›PMID 31551655›Full record

ArticleNeuropsychiatric disease and treatment2019

Atypical antipsychotics for Parkinson's disease psychosis: a systematic review and meta-analysis.

Han Zhang, Limin Wang, Yafei Fan, Lianhong Yang, Xiaojun Wen, Yunyun Liu, Zhonglin Liu

Open access · goldAbstract read
In one paragraph

Article in Neuropsychiatric disease and treatment, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.6field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 34 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 1 country.

Han Zhang *Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, People's Republic of China.
Limin Wang *Department of Neurology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong Neuroscience Institute, Guangzhou 510080, Guangdong Province, People's Republic of China.
Yafei FanDepartment of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, People's Republic of China.
Lianhong YangDepartment of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, People's Republic of China.
Xiaojun WenDepartment of Neurology, Guangzhou First Municipal People's Hospital, Guangzhou Medical University, Guangzhou-Birmingham University Brain and Cognition Center, Guangzhou 510180, People's Republic of China.
Yunyun LiuDepartment of Neurology, The Sixth Affiliated Hospital Sun Yat-Sen University, Guangzhou 510440, People's Republic of China.
Zhonglin LiuDepartment of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, People's Republic of China.
Sun Yat-sen University · CNGuangdong Academy of Medical Sciences · CNGuangzhou First People's Hospital · CNSun Yat-sen Memorial Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo assess the present evidence regarding the efficiency, safety, and potential risks of pharmacotherapy used for Parkinson's disease psychosis (PDPsy) treatment. PATIENTS AND

methodsWe searched the following databases: PubMed, the Cochrane Library, ISI Web of Science, and Embase using the following terms: atypical antipsychotics, pimavanserin, olanzapine, quetiapine, clozapine, Parkinson's disease and psychosis. We systematically reviewed all randomized placebo-controlled trials comparing an atypical antipsychotic with a placebo.

resultsA total of 13 randomized placebo-controlled trials for a total 1142 cases were identified involving pimavanserin (n=4), clozapine (n=2), olanzapine (n=3), and quetiapine (n=4). For each atypical antipsychotic, a descriptive synthesis and meta-analyses was presented. Pimavanserin was associated with a significant improvement in psychotic symptoms compared to a placebo without worsening motor function. Clozapine was efficacious in alleviating psychotic symptoms and did not exacerbate motor function either. Quetiapine and Olanzapine did not demonstrate significant differences in reducing psychotic symptoms but may aggravate motor function.

conclusionsThere is strong evidence that pimavanserin is effective for the treatment of PDPsy. Clozapine is also recommended but should be used with caution due to its side effects. In the future, more well-designed randomized controlled trials (RCTs) are needed to confirm and update the findings reported in this meta-analysis.

Indexed as

clinical trials systematic review/meta-analysisParkinson’s disease/Parkinsonismpsychosis

Identifiers

PMID31551655
PMCPMC6677378
OpenAlexW2966811018

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.