University of Texas Health Science Center at San Antonio, San Anonio, TX
Munaf Alkadimi , Kana Lucero , Lauren Diaz Boyle , Maria Elena Fierro , Kathleen Franklin , Zohra Nooruddin , Michael Mader
Background: Advanced Hepatocellular carcinoma (HCC) is an aggressive tumor, and most patients have a poor prognosis. Recent clinical trials have demonstrated improved survival with molecularly targeted treatment and immunotherapy. Atezolizumab plus Bevacizumab (A+B ) is the recommended first-line treatment for advanced HCC based on the phase 3 IMbrave 150 trial. However, in a real-life setting, many patients do not meet the inclusion criteria of this landmark trial. This study proposes a retrospective review of outcomes of advanced HCC patients receiving A + B in Veterans Health Administration (VHA). Methods: Patients with advanced HCC receiving 1st line systemic therapy with A+ B at the VHA between Dec 1, 2019, to Mar 1, 2022, were selected from the electronic medical records (EMR) using ICD-9 and ICD-10 codes. Abstractors reviewed EMR and followed from their index date of A+ B initiation until death or their last VHA visit, with the study period ending on Jan 31, 2023. The Chi-Squared test was used to compare rates, and the Mann-Whitney test was used to compare medians. Results: A total of 332 patients met the study criteria. The median age was 67 yrs., 99% were males, 63% non-Hispanic White, 26% were Black, 66 % had ECOG ≥ 1, 84% had CPS class A, 16% had CPS class B and C, 62% had grade 2 ALBI score, 56% had viral hepatitis-caused HCC, 80 % had cirrhosis, and 67% had prior local therapies. The outcomes are shown. Conclusions: In our real world, despite having similar PFS as the phase 3 IMbrave 150 trial, our OS at 12 months was lower (52% vs. 67%), given that we had more elderly patients with moderate liver dysfunction and 40% were non-white. This study provides actual outcomes in clinical practice where patients do not match the study population of the pivotal trial.
Characteristic of Interest | All Patients |
---|---|
N (≥ 6 mo from initiation to abstraction) N(≥ 12 mo from initiation to abstraction) | 332 304 |
Number of A + B doses, median (IQR) Range: (min, max) | 6 (3 – 13) (1, 34) |
Overall Survival Time, months | 11.4 (5.4 – 18.7) |
OS: 6 mo OS: 1 yr | 243 (73.2%) 158 (52.0%) |
Response to AB at first scan: CR PR SD PD Death Objective Response Rate(CR+PR) Disease Control Rate(CR+PR+SD) | 5 ( 1.6%) 91 (28.4%) 100 (31.3%) 82 (25.6%) 42 (13.1%) 96 (30.0%) 196 (61.3%) |
Progression-Free Survival, months | 7.6 (3.0 – 14.9) |
PFS: 6 mo PFS: 1 yr | 187 (58.8%) 105 (36.3%) |
Duration of Response (CR,PR,SD), months | 9.8 (4.9 – 15.6) |
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Abstract Disclosures
2023 ASCO Annual Meeting
First Author: Munaf Alkadimi
2023 ASCO Annual Meeting
First Author: Nomi Bezalel
2023 ASCO Annual Meeting
First Author: Kana Lucero
2024 ASCO Gastrointestinal Cancers Symposium
First Author: Jay Parekh