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Abstract Details
Direct-Acting Antivirals Improve Overall Survival in Interventional Oncology Patients With Hepatitis C and Hepatocellular Carcinoma
William M Kamp1, Cortlandt M Sellers1, Stacey Stein2, Joseph K Lim3, Hyun S Kim4
Author information
1Section of Interventional Radiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, 330 Cedar Street, New Haven, CT 06510.
2Section of Medical Oncology, Department of Internal Medicine, Yale School of Medicine, 330 Cedar Street, New Haven, CT 06510.
3Section of Digestive Diseases and Yale Liver Center, Yale School of Medicine, 330 Cedar Street, New Haven, CT 06510.
4Section of Interventional Radiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, 330 Cedar Street, New Haven, CT 06510; Section of Medical Oncology, Department of Internal Medicine, Yale School of Medicine, 330 Cedar Street, New Haven, CT 06510; Yale Cancer Center, Yale School of Medicine, 330 Cedar Street, New Haven, CT 06510. Electronic address: kevin.kim@yale.edu.
Abstract
Purpose: To investigate the impact of direct-acting antivirals (DAAs) and 12-week sustained virologic response (SVR12) in patients with hepatitis C virus (HCV)-related hepatocellular carcinoma (HCC) treated by interventional oncology (IO) therapies.
Materials and methods: Retrospective analysis of patients diagnosed from 2005 to 2016 with HCC and receiving IO therapies. A total of 478 patients met inclusion criteria. Patients were age 29-90 years (mean 63.6 ± 9.4 years) and 78.9% (n =3 77) male. Two hundred and eighty-five (57%) patients had chronic HCV, 93 (33%) received DAAs, and 63 (68%) achieved SVR12. Liver function, tumor characteristics, and IO therapy including ablation, image-guided transcatheter tumor therapies (ITTT) (eg, chemoembolization and radioembolization), and combination locoregional therapy were assessed in analysis.
Results: Median overall survival (OS) of the cohort was 26.7 months (95% confidence interval [CI] 21.9-29.9). OS for ablation, combination locoregional therapy and ITTT, was 37.3 (CI 30.7-49.9), 29.3 (CI 24.2-38.0), and 19.7 months (CI 16.5-22.8), respectively (P < .0001). OS in patients with HCV was 30.7 months (CI 24.2-35.2) versus 22.2 months in non-HCV patients (CI 17.8-27.8, P = .03). Patients with HCV who received DAA had higher survival, 49.2 months (CI 36.5-not reached) versus those not receiving DAA, 18.5 months (CI 14.1-25.3, P < .0001). OS was 71.8 months (CI 42.3-not reached) for patients who achieved SVR12 after DAA versus 26.7 months in the non-SVR12 group (CI 15.9-31.1, P < .0001). Multivariable analysis revealed independent factors for OS including IO treatment type, DAA use and achieving SVR12 (P < .05).
Conclusions: DAA use and SVR12 is associated with higher OS in patients with HCV-related HCC treated by IO therapies.