Abstract 221P
Background
First-line immune checkpoint inhibitor (ICI) for cisplatin-ineligible metastatic urothelial carcinoma patients has been approved by FDA and EMA. However, there is still a lack of evidence to directly compare treatment efficacy between ICI and conventional carboplatin-based chemotherapy. Here we conduct a retrospective analysis to compare the survival outcome between ICI and carboplatin treatment.
Methods
The study enrolled 130 metastatic urothelial carcinoma patients who underwent first-line ICI or carboplatin-based chemotherapy at Kaohsiung and Linko Chang Gung Memorial Hospital between May 2001 and Jun 2019. Kaplan-Meier analyses and Cox proportional regression models were used for univariate and multivariate survival analyses.
Results
In total, there were 44 patients (34%) in the ICI group and 86 patients (66%) in the carboplatin group. The median OS was insignificantly different between ICI and carboplatin groups, accounting for 11.1 and 9.5 months (p = 0.46), respectively. The median PFS in ICI and carboplatin groups were 2.5 and 3.7 months, respectively (p = 0.92). On subgroup analysis, OS was significantly worse for ICI treatment in patients with elevated pretreatment white blood cell count (WBC ≥ 10000 × 103/μL) compared with those on carboplatin group (HR 2.41, 95% CI 1.1 – 5.25, p = 0.03).
Conclusions
In this real-world data analysis, we didn’t show significant survival difference in first-line treatment with ICI and carboplatin-based chemotherapy.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
The authors.
Funding
Has not received any funding.
Disclosure
All authors have declared no conflicts of interest.
Resources from the same session
133P - Prognostic and predictive factors from the phase III CELESTIAL trial of cabozantinib (C) versus placebo (P) in previously treated advanced hepatocellular carcinoma (aHCC)
Presenter: Thomas Yau
Session: Poster display session
Resources:
Abstract
134P - Identification, development and validation of a circulating miRNA-based diagnostic signature for early detection of gastric cancer
Presenter: Daisuke Izumi
Session: Poster display session
Resources:
Abstract
135P - The promising key genes associated with tumour microenvironment and prognosis of hepatocellular carcinoma
Presenter: Jing Fang
Session: Poster display session
Resources:
Abstract
136P - Helicobacter pylori-positive gastric diffuse large B-cell lymphoma: A subset with distinct prognostic features
Presenter: Yuan Cheng
Session: Poster display session
Resources:
Abstract
137P - Significant benefit of pyrotinib combined with SHR6390 in patients with multiline-resistant HER2-positive advanced gastric cancer
Presenter: Zuhua Chen
Session: Poster display session
Resources:
Abstract
138P - Incidence of supracarinal lymph node positivity in operated cases of total esophagectomy: Short term results from a tertiary cancer centre
Presenter: Akhil Palod
Session: Poster display session
Resources:
Abstract
139P - Prognostic usefulness of advanced lung cancer inflammation index in locally-advanced pancreatic carcinoma patients treated with radical chemoradiotherapy
Presenter: Ayberk Besen
Session: Poster display session
Resources:
Abstract
140P - Pancreaticoduodenectomy versus combined neoadjuvant chemotherapy and pancreaticoduodenectomy: Survival patterns among patients with stage II & III periampullary carcinoma
Presenter: Mai Abdelkader
Session: Poster display session
Resources:
Abstract
141P - A 13-gene signature of DNA repair predicts prognosis in gastric cancer patients
Presenter: Jinjia Chang
Session: Poster display session
Resources:
Abstract
142P - Relation between Interleukin -4 (590C/T) gene polymorphism and hepatocellular carcinoma risk in HBV and HCV patients
Presenter: Suzy Gohar
Session: Poster display session
Resources:
Abstract