Evidence map›Paper›PMID 40303921›Full record

SynthesisFrontiers in pharmacology2025

Safety and efficacy of intravesical instillation of botulinum toxin-A in the treatment of interstitial cystitis/bladder pain syndrome and overactive bladder: a systematic review and meta-analysis.

Yongheng Zhou, Zitian He, Tianyu Xiang, Xiaoyan Cao, Huiling Cong, Qinggang Liu, Haoyu Sun, Limin Liao

Abstract readSystematic Review
In one paragraph

Synthesis in Frontiers in pharmacology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. 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

8 authors.

Yongheng Zhou *Department of Urology, China Rehabilitation Science Institute, Beijing, China.
Zitian He *Department of Urology, China Rehabilitation Science Institute, Beijing, China.
Tianyu Xiang *Department of Urology, China Rehabilitation Science Institute, Beijing, China.
Xiaoyan Cao *Department of Quality Management, The First Medical Center of PLA General Hospital, Beijing, China.
Huiling CongDepartment of Urology, China Rehabilitation Research Center, Beijing, China.
Qinggang LiuDepartment of Urology, Qingdao Municipal Hospital, Qingdao, China.
Haoyu SunDepartment of Urology, Qilu hospital of Shandong University, Jinan, Shandong, China.
Limin LiaoDepartment of Urology, China Rehabilitation Science Institute, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The effectiveness and safety of the instillation of botulinum toxin A (BTX-A) remain subjects of controversy. The meta-analysis was performed to assess the efficacy and safety of a novel intravesical instillation of BTX-A for managing overactive bladder (OAB) or interstitial cystitis/bladder pain syndrome (IC/BPS). Method: The randomized controlled trials were retrieved from PubMed, EMBASE, and the Cochrane Library databases up to 29 January 2024. The studies included in the analysis focused on the intravesical instillation of BTX-A in patients with OAB or IC/BPS. The data extraction was independently conducted by two reviewers. The random effects model was utilized for the assessment in order to compute the overall effect sizes. The heterogeneity tests and subgroup analyses were conducted. Results: The meta-analysis and subgroup analysis did not reveal any statistically significant differences. However, the results of the meta-analysis indicated that intravesical instillation of BTX-A could reduce episodes of urgency urinary incontinence (UUI) (overall weighted mean difference [WMD] = -0.85; 95% confidence interval [CI]: -2.99 to 1.29). In subgroup analysis, an increase in void volume (VV) at 4 weeks of follow-up (WMD = -31.99; 95% CI: -70.53 to 6.54) was observed compared to that at 12 weeks (WMD = -1.73; 95% CI: -16.98 to 13.53). In contrast to the groups receiving more than 200 units of BTX-A, patients in the group receiving 200 units or fewer of BTX-A (WMD = -16.89; 95% CI: -41.14 to 7.35) exhibited a significantly greater increase in VV. Conslusion: The intravesical instillation of BTX-A appears to be a viable administration route that may reduce UUI and VV to some extent. In terms of safety, intravesical instillation of BTX-A demonstrated a reduced risk of UTI and post-void residual compared to the placebo group. Systematic Review registration: https://www.crd.york.ac.uk/PROSPERO/view/CRD42024517877.

Indexed as

botulinum toxin AIC/BPSintravesical instillationmeta-analysisOAB

Identifiers

PMID40303921
PMCPMC12037478

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.