Real-world clinical characteristics and treatment patterns among people with hepatocellular carcinoma in the United States (US) treated with resection or ablation.

Authors

null

Neehar Parikh

University of Michigan, Ann Arbor, MI

Neehar Parikh , Dex L. Underwood , Jenny Hu , Heide A. Stirnadel-Farrant , Nehemiah Kebede , Ravi Patel , Kirema Garcia-Reyes

Organizations

University of Michigan, Ann Arbor, MI, Oncology Business Unit Medical, AstraZeneca, Gaithersburg, MD, AstraZeneca, Gaithersburg, MD, AstraZeneca, Cambridge, United Kingdom, Oncology Outcomes Research, AstraZeneca, Gaithersburg, MD, Division of Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, NY

Research Funding

AstraZeneca

Background: Treatment guidelines for early-stage hepatocellular carcinoma (eHCC) include therapies with curative intent comprising three primary strategies: liver transplantation, surgical resection, or ablation (for small lesions). However, many people experience HCC recurrence, with recurrence rates of up to approximately 80% within 5 years after resection. Furthermore, contemporary insights into the eHCC treatment landscape and post-recurrence treatment patterns in the real-world setting are lacking. This study was designed to assess demographic and clinical characteristics and treatment patterns for people with HCC who received resection or ablation as a proxy for defining early-stage disease. Methods: This was a retrospective observational cohort study of adults with HCC treated with resection or ablation in the US, conducted using linked electronic health records and healthcare claims from Optum’s de-identified Market Clarity Data. Index date was the date of the first observed resection or ablation between July 2016 and March 2021. Baseline characteristics were assessed in the 6-month period prior to index, and patients (pts) were followed until end of continuous enrolment in a medical and pharmacy plan, death, or data cut-off (September 2022), whichever occurred first. Demographic and clinical characteristics and treatment patterns, including subsequent treatments, were described. Results: A total of 649 pts met the study criteria and were included in the analyses. The median duration of follow-up was 23.0 months (range: 0.03–74.55 months). The mean age at index was 64.1 years (median 64.0 years), with a majority male gender (72.9%) and White race (65.5%). A total of 385 pts (59.3%) underwent ablation only, 242 pts (37.3%) underwent resection only, and 22 pts (3.4%) underwent both procedures at index. Transarterial embolization alone was received by 57 (8.8%) pts and was the most common embolization procedure received during follow-up, followed by transarterial chemoembolization alone in 46 (7.1%) pts and transarterial radioembolization in 46 (7.1%) pts. A total of 88 (13.6%) pts received systemic therapies for HCC (tyrosine kinase inhibitors, programmed cell death protein-1/programmed cell death-ligand 1/cytotoxic T-lymphocyte-associated antigen 4 inhibitors, or angiogenesis inhibitors) during follow-up. Conclusions: In this real-world cohort, ablation was the most received curative intent therapy for HCC. Among treatments received during follow-up, locoregional therapies were used most often, followed by systemic therapies. Although limited by its retrospective, observational nature, short duration of follow-up, and availability of data in the database, the results of this analysis provide a contemporary landscape of early-stage treatments for HCC in the real-world setting.

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Abstract Details

Meeting

2024 ASCO Gastrointestinal Cancers Symposium

Session Type

Poster Session

Session Title

Poster Session B: Cancers of the Pancreas, Small Bowel, and Hepatobiliary Tract

Track

Pancreatic Cancer,Hepatobiliary Cancer,Neuroendocrine/Carcinoid,Small Bowel Cancer

Sub Track

Cancer Disparities

Citation

J Clin Oncol 42, 2024 (suppl 3; abstr 436)

DOI

10.1200/JCO.2024.42.3_suppl.436

Abstract #

436

Poster Bd #

A1

Abstract Disclosures

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