Evidence map›Paper›PMID 33019437›Full record

SynthesisMedicine2020

Chaihu Longgu Muli decoction, a Chinese herbal formula, for the treatment of insomnia: A systematic review and meta-analysis.

Xinyi Wang, Jianqing Ju, Jingen Li, Yixuan Fan, Hao Xu

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Review
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
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

5 authors.

Xinyi WangGraduate School, Beijing University of Chinese Medicine.
Jianqing JuCardiovascular Disease Center, Xiyuan Hospital, China Academy of Chinese Medical Sciences.
Jingen LiDongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
Yixuan FanGraduate School, Beijing University of Chinese Medicine.
Hao XuCardiovascular Disease Center, Xiyuan Hospital, China Academy of Chinese Medical Sciences.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo review the literature on the efficacy and safety of Chaihu Longgu Muli decoction (CLMD) for insomnia.

methodsA systematic literature search was performed for five databases up to May of 2019 to identify randomized control trials involving CLMD for patients with insomnia. The experimental group was CLMD monotherapy or CLMD plus conventional treatment. Comparators were placebo, no treatment, or conventional medicine. The main comparison was CLMD against conventional drugs. The primary outcome was sleep quality (assessed using the Pittsburgh Sleep Quality Index, PSQI). The secondary outcomes were clinical effectiveness rate, total sleep time, and adverse event rate. RevMan 5.3 software was used for meta-analysis with effect estimate presented as relative risk (RR) and mean difference (MD) with 95% confidence interval (CI).

resultsA total of 22 studies involving 2029 patients were included. All the included studies presented some risk of bias, especially risks of performance, and detection bias. The main meta-analysis showed that CLMD alone was more effective than conventional medications by reducing PSQI (MD = -2.80, 95% CI [-5.48, -0.13], P = .04), improving the clinical effectiveness rate (RR = 1.23, 95% CI [1.16, 1.31], P < .00001), and prolonging total sleep time (MD = 1.01, 95% CI [0.19, 1.83], P = .002). The adverse event rate in the CLMD group was lower than that of the control group (RR = 0.22, 95% CI [0.09, 0.51], P = .0005). CLMD also improved sleep quality better than conventional medications as an adjunct therapy (P < .05). The funnel plot was symmetrical, representing a low risk of publication bias.

conclusionCLMD presented better efficacy and safety than conventional medications and had the potential to become an alternative to conventional medications for the treatment of insomnia. However, as the included studies showed significant risks of bias, these results will need to be confirmed by future double-blind randomized controlled trials. PROSPERO REGISTRATION NUMBER: CRD42019133103.

Indexed as

Drugs, Chinese HerbalHumansSleep Initiation and Maintenance DisordersDrugs, Chinese Herbal

Identifiers

PMID33019437
PMCPMC7535661

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.