Evidence map›Paper›PMID 40307755›Full record

ArticleBMC cancer2025

RC48-ADC monotherapy or in combination with immunotherapy for locally advanced or metastatic urothelial carcinoma with HER2 low and null expression: a multicenter, real-world, retrospective study.

Daining Wang, Manming Cao, Yijun Zhang, Liangkuan Bi, Meiting Chen, Mengqian Ni, Qiufan Zheng, Kai Yao, Zhuowei Liu, Xia Yang and 3 more

Abstract readMulticenter Study
In one paragraph

Article in BMC cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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.

Daining Wang *Department of Medical Oncology, Sun Yat-sen University Cancer Certer, Guangzhou, China.
Manming Cao *Department of Medical Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Yijun Zhang *Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China.
Liangkuan BiDepartment of Urology, Peking University Shenzhen Hospital, Shenzhen, China.
Meiting ChenDepartment of Medical Oncology, Sun Yat-sen University Cancer Certer, Guangzhou, China.
Mengqian NiDepartment of Medical Oncology, Sun Yat-sen University Cancer Certer, Guangzhou, China.
Qiufan ZhengDepartment of Medical Oncology, Sun Yat-sen University Cancer Certer, Guangzhou, China.
Kai YaoDepartment of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China.
Zhuowei LiuDepartment of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China.
Xia YangDepartment of Medical Oncology, Sun Yat-sen University Cancer Certer, Guangzhou, China.
Yanxia ShiDepartment of Medical Oncology, Sun Yat-sen University Cancer Certer, Guangzhou, China. shiyx@sysucc.org.cn.
Zhiming WuDepartment of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China. wuzhim@sysucc.org.cn.
Xin AnDepartment of Medical Oncology, Sun Yat-sen University Cancer Certer, Guangzhou, China. anxin@sysucc.org.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundApproximately half of urothelial carcinoma (UC) patients exhibit low or null HER2 expression. Limited data are available on the efficacy of anti-HER2 RC48-ADC (Disitamab Vedotin) in HER2 low and null advanced UC.

methodsPatients with locally advanced or metastatic UC (la/mUC) with HER2 low (IHC 1+) and null (IHC 0) expression who received RC48-ADC monotherapy or in combination with programmed cell death protein 1 (PD-1) inhibitors were enrolled in this multi-center, retrospective study. The primary endpoint was objective response rate (ORR). Secondary endpoints included disease control rate (DCR), progression-free survival (PFS), overall survival (OS), and adverse events (AEs).

resultsA total of 27 patients were included, with a median age of 64 years, and 17 (63%) were male. Seven (26.0%) patients received RC48-ADC alone, and 20 (74.1%) received RC48-ADC combined with a PD-1 inhibitor. Eight (30.8%) patients achieved partial response (PR), and twelve (46.2%) exhibited stable disease (SD). The ORR was 30.8%, and DCR was 76.9%. The median PFS and OS were 7.4 months and 13.8 months, one-year PFS and OS rates were 29.1% and 57.2%, respectively. Both RC48 monotherapy and combination were well-tolerated. Grade 3 AEs occurred in 4 (14.8%) patients received combination treatment, including 2 cases of anemia, 1 case of increased serum creatinine, and 1 case of autoimmune encephalitis. No grade 3 or higher AEs were observed in RC48-ADC monotherapy.

conclusionRC48-ADC demonstrated favorable efficacy and manageable safety in la/mUC patients with HER2 low and null expression in real-world settings. Prospective studies with large sample size are warranted to validate this finding.

Indexed as

Antineoplastic Combined Chemotherapy ProtocolsCarcinoma, Transitional CellErb-b2 Receptor Tyrosine KinasesUrologic NeoplasmsAdultAgedAged, 80 and overFemaleHumansImmune Checkpoint InhibitorsImmunotherapyMaleMiddle AgedRetrospective StudiesTreatment OutcomeERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesImmune Checkpoint InhibitorsHER2 low and null expressionLocally advanced or metastatic urothelial carcinomaPD-1 inhibitorsRC48-ADCReal-world study

Identifiers

PMID40307755
PMCPMC12044827

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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.