Treatment patterns post atezolizumab plus bevacizumab for advanced hepatocellular carcinoma: Real-world analysis at Veterans Health Administration comparing lenvatinib vs. sorafenib.

Authors

null

Tamarah Aldawoodi

Univeristy of Texas Health Science Center San Antonio, San Antonio, TX

Tamarah Aldawoodi , Munaf Alkadimi , Kana Lucero , Lauren Diaz Boyle , Maria Elena Fierro , Michael Mader , Kathleen Franklin , Zohra Nooruddin

Organizations

Univeristy of Texas Health Science Center San Antonio, San Antonio, TX, University of Texas Health Science Center at San Antonio, San Anonio, TX, University of Texas Health Science Center at San Antonio, San Antonio, TX, The University of Texas Health Science Center-San Antonio, San Antonio, TX, Audie L. Murphy Memorial Veterans Hospital, San Antonio, TX, South Texas Veterans Health Care System, San Antonio, TX, University of Texas Health San Antonio, San Antonio, TX

Research Funding

No funding received
None.

Background: Atezolizumab plus Bevacizumab (A+B) has been the standard first-line therapy for advanced hepatocellular carcinoma (HCC) patients. There needs to be more data on the efficacy and selection of optimal sequences following resistance to A+B. Our study aims to review treatment patterns for disease progression following A+B, focusing on the most common 2nd line treatment utilized by the Veterans Health Administration (VHA). Methods: Patients with advanced HCC receiving line A+B at the VHA between Dec 1, 2019, to Mar 1, 2022, were selected electronically using ICD-9 and ICD-10 codes. Abstractors reviewed EMR following each patient from their index date of A+B initiation, sequential therapies, until death, or their last VHA visit, with the study period ending on Jan 31, 2023. Results: Three hundred thirty-two patients received A+B during our study period, and 1/3rd (n = 107) of these patients went on second-line treatments. 87 % started Tyrosine Kinase Inhibitors with 52, 29,12, and 1 on Lenvatinib, Sorafenib, Cabozantinib, and Regorafenib, respectively. Two second-line cohorts were selected, A (52 on Lenvatinib) and B (29 on sorafenib). The median age was 66 yrs vs. 65 yrs in cohorts A and B, respectively. In both cohorts, 60% non-Hispanic White and 90% with ECOG ≤1, there were no statistically significant differences between both cohorts in overall and progression-free survival. The outcomes are shown. Conclusions: Despite minimal improvement in PFS and a lower discontinuation rate due to toxicity favoring Lenvatinib over Sorafenib, Sorafenib had slightly better overall survival. This study is one of the most significant projects that describes 2nd line treatment patterns post-A+B failure. Further studies are warranted to evaluate larger cohorts to study treatment sequencing in the second and third lines.

Clinical Outcomes for patients on Lenvatinib vs Sorafenib post A+B.

Characteristic of Interest2nd Line: Lenvatinib2nd Line: Sorafenib
N5229
Duration of 2nd Line Trmt, months2.9 (1.8 – 5.3)3.0 (0.7 – 5.9)
OS: 6 mo
OS: 1 yr
46 (88.5%)
33 (70.2%)
27 (93.1%)
21 (75.0%)
PFS: 6 mo
PFS: 1 yr
27 (54.0%)
13 (28.3%)
13 (44.8%)
6 (21.4%)
Reason for Discontinuing A+B:
Disease Progression
Toxicity

34 (65.4%)
15 (28.9%)

19 (65.5%)
10 (34.5%)
Response to 2nd Line Treatment: CR
PR
SD
PD
Death
0 (0%)
4 (8.9%)
4 (8.9%)
24 (53.3%)
13 (28.9%)
1 (4.5%)
1 (4.5%)
6 (27.3%)
13 (59.1%)
1 (4.5%)

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Abstract Details

Meeting

2023 ASCO Annual Meeting

Session Type

Publication Only

Session Title

Publication Only: Gastrointestinal Cancer—Gastroesophageal, Pancreatic, and Hepatobiliary

Track

Gastrointestinal Cancer—Gastroesophageal, Pancreatic, and Hepatobiliary

Sub Track

Hepatobiliary Cancer - Advanced/Metastatic Disease

Citation

J Clin Oncol 41, 2023 (suppl 16; abstr e16195)

DOI

10.1200/JCO.2023.41.16_suppl.e16195

Abstract #

e16195

Abstract Disclosures