Evidence map›Paper›PMID 41164972›Full record

Trial reportCancer medicine2025

Avelumab Maintenance Therapy in Patients With Curatively Unresectable Urothelial Carcinoma in Japan: Subgroup Analyses of Post-Marketing Surveillance Data by Age, Prior Chemotherapy Regimen, and Best Overall Response to Prior Chemotherapy.

Masayoshi Nagata, Eiji Kikuchi, Taito Ito, Masashi Sato, Mie Ogi, Makiko Morita, Masahiro Kajita, Hiroyuki Nishiyama

Abstract readClinical Trial, Phase IIIRandomized Controlled Trial
In one paragraph

Trial report in Cancer medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Trial
  2. Review
  3. 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.

Masayoshi NagataDepartment of Urology, Juntendo University Graduate School of Medicine, Tokyo, Japan.ORCID https://orcid.org/0000-0002-3077-191X
Eiji KikuchiDepartment of Urology, St. Marianna University School of Medicine, Kanagawa, Japan.
Taito ItoMedical Department, Merck Biopharma Co., Ltd., Tokyo, Japan, an Affiliate of Merck KGaA, Darmstadt, Germany.
Masashi SatoResearch & Development, Merck Biopharma Co., Ltd., Tokyo, Japan, an Affiliate of Merck KGaA, Darmstadt, Germany.
Mie OgiGlobal Development Operations, Merck Biopharma Co., Ltd., Tokyo, Japan, an Affiliate of Merck KGaA, Darmstadt, Germany.
Makiko MoritaGlobal Patient Safety Japan, Merck Biopharma Co., Ltd., Tokyo, Japan, an Affiliate of Merck KGaA, Darmstadt, Germany.
Masahiro KajitaMedical Department, Merck Biopharma Co., Ltd., Tokyo, Japan, an Affiliate of Merck KGaA, Darmstadt, Germany.
Hiroyuki NishiyamaDepartment of Urology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan.

Funding

Merck Biopharma Co., Ltd., Tokyo, Japan, an affiliate of Merck KGaA, Darmstadt, Germany (CrossRef Funder ID: 10.13039/100009945)Pfizer
6 · The paper itself

Abstract

introductionAvelumab maintenance therapy was approved in Japan for curatively unresectable urothelial carcinoma (UC) without progression after prior platinum-based chemotherapy (PBC) based on results from the JAVELIN Bladder 100 phase 3 trial. We report post hoc analyses of post-marketing surveillance (PMS) data in subgroups defined by age, prior PBC regimen, and best overall response (BOR) to prior PBC.

methodsPatients with curatively unresectable UC who received ≥ 1 dose of avelumab maintenance in Japan between February and December 2021 were evaluated. The primary objective was to evaluate safety based on prespecified adverse drug reactions (ADRs). The secondary objective was to evaluate effectiveness, including time to treatment failure (TTF; discontinuation for any reason) and overall survival (OS).

resultsThe analysis population included 453 patients. In patients aged ≤ 64 (n = 75), 65 to 74 (n = 198), or ≥ 75 (n = 180) years, prespecified ADRs occurred in 17 (22.7%), 69 (34.9%), and 58 (32.2%); median TTF was 4.8, 4.4, and 4.9 months; and 12-month OS rates were 77.6%, 82.7%, and 72.6%, respectively. In patients with prior cisplatin + gemcitabine (n = 267), carboplatin + gemcitabine (n = 163), or dose-dense methotrexate, vinblastine, doxorubicin, and cisplatin (n = 9) treatment, prespecified ADRs occurred in 93 (34.8%), 45 (27.6%), and 3 (33.3%); median TTF was 4.6, 4.6, and 5.1 months; and 12-month OS rates were 79.6%, 73.8%, and 88.9%, respectively. In patients with prior complete response (n = 47), partial response (n = 242), or stable disease (n = 149), prespecified ADRs occurred in 16 (34.0%), 79 (32.6%), and 45 (30.2%); median TTF was 5.2, 4.6, and 4.6 months; and 12-month OS rates were 89.4%, 76.3%, and 75.8%, respectively. DISCUSSION: In this PMS population, safety and effectiveness were observed with avelumab maintenance therapy across subgroups defined by age, prior PBC regimen, or BOR to prior PBC. Findings support the favorable benefit-risk profile of avelumab maintenance in clinical practice.

trial registrationUniversity Hospital Medical Information Network Clinical Trials Registry (UMIN-CTR: UMIN 43435).

Indexed as

Antibodies, Monoclonal, HumanizedAntineoplastic Combined Chemotherapy ProtocolsCarcinoma, Transitional CellUrinary Bladder NeoplasmsAdultAgedAged, 80 and overAge FactorsFemaleHumansJapanMaintenance ChemotherapyMaleMiddle AgedProduct Surveillance, PostmarketingTreatment OutcomeAntibodies, Monoclonal, Humanizedavelumabageavelumab maintenanceplatinum‐based chemotherapypost‐marketing surveillancereal‐world dataurothelial carcinoma

Identifiers

PMID41164972
PMCPMC12572950

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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.