Publications by authors named "Ali Chour"

Article Synopsis
  • The KRAS protein switches between active (GTP-bound) and inactive (GDP-bound) states, and mutations (especially KRASG12C) can keep it in the inactive state, promoting cancer cell growth primarily in lung adenocarcinomas.
  • Sotorasib and adagrasib are the first drugs that target this inactive state, but resistance to these treatments is common.
  • Resistance mechanisms can be classified as "on-target" (new mutations in KRAS) or "off-target" (changes in other genes or processes), indicating a need for more extensive studies to uncover these adaptive changes in cancer treatment.
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Introduction: Sotorasib is a first-in-class KRASG12C inhibitor that showed significant clinical activity in KRAS-mutated non-small cell lung cancer (NSCLC). The most frequent grade 3 or 4 sotorasib-related adverse events (AEs) were diarrhea (4-12 %) and hepatotoxicity (10.1-15.

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Background: NRAS mutations are observed in less than 1% of non-small cell lung cancer (NSCLC). Clinical data regarding this rare subset of lung cancer are scarce and response to systemic treatment such as chemotherapy or immune checkpoint inhibitors (ICI) has never been reported.

Methods: All consecutive patients with an NRAS mutated NSCLC, diagnosed between August 2014 and November 2020 in 14 French centers, were included.

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Over the last few years, the advent of balloon pulmonary angioplasty (BPA) had led to changes in the management of chronic thromboembolic pulmonary hypertension (CTEPH). We reviewed data from 98 CTEPH patients diagnosed during the last decade in a pulmonary hypertension (PH) expert centre. The management modalities of 2 periods (Period A: 2011-15 and Period B: 2016-20) were compared.

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Introduction: Sequential anti-programmed cell death protein 1 (PD-1) or anti-programmed death-ligand 1 (PD-L1) followed by small targeted therapy use is associated with increased prevalence of adverse events (AEs) in NSCLC. KRASG12C inhibitor sotorasib may trigger severe immune-mediated hepatotoxicity when used in sequence or in combination with anti-PD-(L)1. This study was designed to address whether sequential anti-PD-(L)1 and sotorasib therapy increases the risk of hepatotoxicity and other AEs.

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