Evidence map›Paper›PMID 33991066›Full record

ArticleBrain and behavior2021

Centrally acting anticholinergic drug trihexyphenidyl is highly effective in reducing nightmares associated with post-traumatic stress disorder.

Katsumasa Sogo, Masanobu Sogo, Yoshie Okawa

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.9field-weighted citation impact, top 24% 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

5 citing papers in PubMed, 6 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

3 authors at 1 institution in 1 country.

Katsumasa SogoSogo PTSD Institute, Medical Corporation Sogokai, Hiroshima-city, Japan.ORCID 0000-0003-2786-096X
Masanobu SogoSogo PTSD Institute, Medical Corporation Sogokai, Hiroshima-city, Japan.
Yoshie OkawaSogo PTSD Institute, Medical Corporation Sogokai, Hiroshima-city, Japan.
Kishokai Medical Corporation · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionFollowing a case study on scopolamine butyl bromide, an anticholinergic drug, we studied the effect of a central anticholinergic drug on post-traumatic stress disorder (PTSD)-related flashbacks and nightmares.

methodsWe administered trihexyphenidyl (TP) to 34 patients with refractory PTSD-related nightmares and flashbacks (open-label trial [n = 22]; single-blind trial [n = 12]), who had previously received psychiatric treatment for approximately 2-15 years, without therapeutic benefits. The effect of TP was determined using the Clinician-Administered PTSD Scale (CAPS) and the Impact of Event Scale-Revised (IES-R).

resultsOverall, most patients reported an improvement to none or mild on the CAPS for nightmares (88%) and flashbacks (79%).

conclusionThis study is the first to demonstrate the potential efficacy of TP in the treatment of refractory PTSD-related nightmares and flashbacks. Further double-blind, randomized control trials are needed to explore the potential clinical benefits of TP in PTSD.

Indexed as

Pharmaceutical PreparationsStress Disorders, Post-TraumaticCholinergic AntagonistsDreamsHumansSingle-Blind MethodTreatment OutcomeTrihexyphenidylCholinergic AntagonistsPharmaceutical PreparationsTrihexyphenidylanticholinergic agentsneurotransmittersPTSDtreatment

Identifiers

PMID33991066
PMCPMC8213645
OpenAlexW3163536785

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.