Evidence map›Paper›PMID 40389638›Full record

ArticleWorld journal of urology2025

Relationship between urinary pH and efficacy of Bacillus Calmette-Guérin treatment in patients with carcinoma in situ of the bladder.

Ryo Yamashita, Takashi Sugino, Akifumi Notsu, Yuichiro Nakaya, Kana Ito, Yuma Sakura, Hideo Shinsaka, Masato Matsuzaki, Masashi Niwakawa, Eiji Kikuchi

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Article in World journal of urology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Ryo YamashitaDivision of Urology, Shizuoka Cancer Center, Shizuoka, 1007, Shimonagakubo, Nagaizumi, Suntougun, Shizuoka, 411-8777, Japan. r.yamashita@scchr.jp.
Takashi SuginoDivision of Pathology, Shizuoka Cancer Center, Shizuoka, Japan.
Akifumi NotsuClinical Research Center, Shizuoka Cancer Center, Shizuoka, Japan.
Yuichiro NakayaDivision of Infectious Disease, Shizuoka Cancer Center, Shizuoka, Japan.
Kana ItoDivision of Urology, Shizuoka Cancer Center, Shizuoka, 1007, Shimonagakubo, Nagaizumi, Suntougun, Shizuoka, 411-8777, Japan.
Yuma SakuraDivision of Urology, Shizuoka Cancer Center, Shizuoka, 1007, Shimonagakubo, Nagaizumi, Suntougun, Shizuoka, 411-8777, Japan.
Hideo ShinsakaDivision of Urology, Shizuoka Cancer Center, Shizuoka, 1007, Shimonagakubo, Nagaizumi, Suntougun, Shizuoka, 411-8777, Japan.
Masato MatsuzakiDivision of Urology, Shizuoka Cancer Center, Shizuoka, 1007, Shimonagakubo, Nagaizumi, Suntougun, Shizuoka, 411-8777, Japan.
Masashi NiwakawaDivision of Urology, Shizuoka Cancer Center, Shizuoka, 1007, Shimonagakubo, Nagaizumi, Suntougun, Shizuoka, 411-8777, Japan.
Eiji KikuchiDepartment of Urology, Saint Marianna University School of Medicine, Kawasaki, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeBacillus Calmette-Guérin (BCG) is the standard treatment for carcinoma in situ (CIS) in patients with urothelial bladder carcinoma. We aimed to determine whether average urinary pH before BCG instillation affects the BCG response.

methodsBetween August 2003 and January 2023, 203 patients with CIS received BCG treatment (Tokyo strain, 80 mg, ≥ 5 times) at our hospital. Average urinary pH was calculated by summing each urinary pH measurement before BCG instillation and dividing by the number of instillations. The Fine-Gray method was used to assess the relationship between average urinary pH (as a continuous variable) and intravesical recurrence. We also analyzed the cumulative incidence of intravesical recurrence after BCG treatment using different cutoff values for average urinary pH (median and trisection of the cohort).

resultsThe median follow-up period was 45 months (interquartile range (IQR): 14-83 months). The median urinary pH was 6.07 (IQR: 5.68‒6.50). In multivariate analysis, average urinary pH before BCG was significantly associated with intravesical recurrence (hazard ratio: 0.53, 95% confidence interval 0.32-0.89, p = 0.017). The cumulative incidence of intravesical recurrence differed significantly when categorized by average urinary pH (median and trisection), with patients having higher urinary pH showing lower intravesical recurrence rates.

conclusionThis is the first study to examine the relationship between BCG response and average urinary pH in patients with CIS. Patients with higher urinary pH had lower intravesical recurrence rates after BCG treatment.

Indexed as

Adjuvants, ImmunologicBCG VaccineCarcinoma in SituCarcinoma, Transitional CellUrinary Bladder NeoplasmsUrineAdministration, IntravesicalAgedAged, 80 and overFemaleHumansHydrogen-Ion ConcentrationMaleMiddle AgedNeoplasm Recurrence, LocalRetrospective StudiesAdjuvants, ImmunologicBCG VaccineBacillus Calmette-Guérin (BCG)Bladder cancerUrinary pHUrothelial carcinoma

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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.