Evidence map›Paper›PMID 32660456›Full record

SynthesisBMC urology2020

Intravesical gemcitabine versus mitomycin for non-muscle invasive bladder cancer: a systematic review and meta-analysis of randomized controlled trial.

Rongxin Li, Ye Li, Jun Song, Ke Gao, Kangning Chen, Xiaogang Yang, Yongqiang Ding, Xinlong Ma, Yang Wang, Weipeng Li and 3 more

Open access · goldAbstract readComparative StudyMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC urology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
4.9field-weighted citation impact, top 4% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Intravesical gemcitabine for non-muscle invasive bladder cancer.The Cochrane database of systematic reviews · 2021
    Pooled it
  3. Trial
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. 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

13 authors at 2 institutions in 1 country.

Rongxin LiLanzhou University Second Hospital, Lanzhou City, Gansu Province, China.
Ye LiLanzhou University Second Hospital, Lanzhou City, Gansu Province, China.
Jun SongLanzhou University Second Hospital, Lanzhou City, Gansu Province, China.
Ke GaoLanzhou University Second Hospital, Lanzhou City, Gansu Province, China.
Kangning ChenLanzhou University Second Hospital, Lanzhou City, Gansu Province, China.
Xiaogang YangLanzhou University Second Hospital, Lanzhou City, Gansu Province, China.
Yongqiang DingLanzhou University Second Hospital, Lanzhou City, Gansu Province, China.
Xinlong MaLanzhou University Second Hospital, Lanzhou City, Gansu Province, China.
Yang WangLanzhou University Second Hospital, Lanzhou City, Gansu Province, China.
Weipeng LiLanzhou University Second Hospital, Lanzhou City, Gansu Province, China.
Yanan WangLanzhou University Second Hospital, Lanzhou City, Gansu Province, China.
Zhiping WangLanzhou University Second Hospital, Lanzhou City, Gansu Province, China.
Zhilong DongLanzhou University Second Hospital, Lanzhou City, Gansu Province, China. 562691313@qq.com.
Lanzhou University · CNLanzhou University Second Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMitomycin (MMC) has been frequently used as the compound for intravesical treatment. The relatively new pyrimidine analog gemcitabine (GEM) has exhibited anticancer effect on various solid cancers, such as the advanced bladder cancer. In this study, the GEM and MMC in treating non-muscle invasive bladder cancer (NMIBC) cases was compared through systemic review.

methodsIn accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement, the electronic databases, including Embase, PubMed, Chinese biomedicine literature database, the Cochrane Library, the National Institute for Health and Clinical Excellence, NHS Evidence, Chinese technological periodical full-text database, and Chinese periodical full-text database, were systemically reviewed from inception to October 2018. Then, the RevMan 5.0 software was applied for data analysis. Five randomized controlled trials (RCTs) involving a total of 335 patients were included.

resultsFor MMC group, the recurrence rate in the mitomycin arm increased compared with that in GEM group (OR = 0.44 95% CI [0.24, 0.78]), and the difference was statistically significant between the two groups. GEM was associated with reduced incidence of chemical cystitis compared with that of MMC (OR = 0.23 95% CI [0.12, 0.44]). Differences in hematuria (OR = 0.46 95% CI [0.16, 1.31]), skin reaction (OR = 0.49 95% CI [0.14, 1.70]) and liver and kidney function damage (OR = 0.51 95% CI [0.09, 2.85]) displayed no statistical significance between the two groups.

conclusionFindings in our study demonstrate the superior efficacy of GEM over MMC in reducing the relapse rate among NMIBC patients following transurethral resection (TUR). In addition, GEM is associated with reduced local toxic effects on the bladder compared with those of MMC. However, more future studies are needed to examine GEM safety when used as the monotherapy or polytherapy for bladder patients. More RCTs with high quality are also required to validate our findings due to the limitations of the current meta-analysis.

Indexed as

Administration, IntravesicalAntibiotics, AntineoplasticAntimetabolites, AntineoplasticDeoxycytidineGemcitabineHumansMitomycinNeoplasm InvasivenessRandomized Controlled Trials as TopicUrinary Bladder NeoplasmsAntibiotics, AntineoplasticAntimetabolites, AntineoplasticDeoxycytidineGemcitabineMitomycinBladder cancerGemcitabineMeta-analysisMitomycinSystematic evaluation

Identifiers

PMID32660456
PMCPMC7358190
OpenAlexW3043239653

What OpenQuestion holds

Textmetadata
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.