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Comparison of Atezolizumab/Bevacizumab Versus Durvalumab/Tremelimumab (STRIDE) Protocols in Locally Advanced or Metastatic Hepatocellular Carcinoma Among Patients in Sohag

Sponsor: Sohag Oncology Center

Summary

This retrospective observational study compares two first-line immunotherapy-based treatment regimens used for adults with locally advanced or metastatic hepatocellular carcinoma (HCC) at Suhag Cancer Center, Egypt. The two regimens are atezolizumab plus bevacizumab and durvalumab plus tremelimumab, also known as the STRIDE regimen. HCC is a major cancer burden in Egypt. Although both regimens have shown benefit in international clinical trials, they have not been directly compared in Egyptian patients. Differences in local disease patterns, comorbidities, access to treatment, and real-world tolerability may influence treatment outcomes. This study will use existing medical records and cancer registry data to compare outcomes between patients who received either regimen as first-line systemic therapy. The primary aim is to compare the 12-month overall survival rate between the two treatment groups. Secondary aims include comparing progression-free survival, tumor response, disease control, severe treatment-related adverse events, and health-related quality of life. Tumor response will be assessed using RECIST 1.1 or modified RECIST criteria when available, and adverse events will be graded according to CTCAE version 5.0. Eligible patients are adults with confirmed locally advanced or metastatic HCC who were not candidates for curative surgical or locoregional treatment and who started one of the two regimens between January 2021 and December 2024. Data will be collected retrospectively from registry and hospital records. Because this is a retrospective review of existing records, informed consent was waived by the institutional ethics committee, and patient data will be handled confidentially and anonymized.

Official title: Retrospective Comparison of Atezolizumab/Bevacizumab Versus Durvalumab/Tremelimumab (STRIDE) Protocols in Locally Advanced or Metastatic Hepatocellular Carcinoma Among Patients in Suhag Cancer Center, Egypt

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