METASTASES CEREBRALES DES CANCERS BRONCHIQUES ALK REARRANGÉS - LESS IS MORE FABRICE BARLESI, MD, PHD - ONCOHIGHLIGHTS 2020
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Metastases cerebrales des cancers bronchiques alk rearrangés Less is more FABRICE BARLESI, MD, PhD Institut Gustave Roussy - Paris M-MA-00000097
Le contenu et l’interprétation de ces diapositives reflètent le point de vue de l’orateur et non celui de Roche. Les informations présentées pourraient comporter des données relatives à des produits non enregistrés ou à des indications non approuvées au Maroc. La cadre de cette présentation est scientifique et nullement promotionnel.
Disclosures ● Personal financial interests: > Astra-Zeneca, Bayer, Bristol-Myers Squibb, Boehringer–Ingelheim, Eli Lilly Oncology, F. Hoffmann–La Roche Ltd, Novartis, Merck, Mirati, MSD, Pierre Fabre, Pfizer, Seattle Genetics and Takeda ● Institutional financial interests: > Abbvie, ACEA, Amgen, Astra-Zeneca, Bayer, Bristol-Myers Squibb, Boehringer–Ingelheim, Eisai, Eli Lilly Oncology, F. Hoffmann–La Roche Ltd, Genentech, Ipsen, Ignyta, Innate Pharma, Loxo, Novartis, Medimmune, Merck, MSD, Pierre Fabre, Pfizer, Sanofi-Aventis and Takeda ● Non-financial interests: > Principal Investigator for Astra-Zeneca, BMS, Merck, Pierre Fabre and F. Hoffmann-La Roche, Ltd, sponsored trials (or ISR) ● No other conflicts of interest 28/01/2021 Gustave Roussy Cancer Center 3
Brain metastases as an issue • A frequent concern for ALK+ patients • ~35% of patients with ALK+ NSCLC at initial diagnosis • Frequently non eligible to radio/neuro surgical management with CNS mets (%) 60 ALK+ NSCLC pts 40 20 0 1 2 3 ≥4 Number of brain metastases at first imaging Gainor JF et al, Cancer Discov 2016
Brain metastases as an issue • A frequent concern for ALK+ patients • Also during the course of the disease Griesinger F, et al. Oncotarget. 2018; Patil T, et al. J Thorac Oncol. 2018; Drilon et al., J Thorac Oncol 2018
Efficacité des inhibiteurs de ALK dans les metastases cérébrales ? De la 1ère génération aux inhibiteurs les plus récents
Brain mets is no longer an issue? • Proven superiority of new ALK TKIs over Crizotinib to treat BM Peters S et al, NEJM 2017; Camidge R, et al. ESMO Asia 2019; Solomon B, et al. ESMO 2020
Brain mets is no longer an issue? • Proven superiority of new ALK TKIs over Crizotinib to prevent BM 50 41.4% Cumulative incidence (%) (95% CI: 33.2–49.4) 40 Crizotinib (n=151) Alectinib (n=152) 30 20 9.4% (95% CI: 5.4–14.7) 10 0 0 6 12 18 24 30 Time (months) Crizotinib (n=151) Alectinib (n=152) Patients with events, n (%) 68 (45) 18 (12) Cause-specific HR 0.16 (95% CI: 0.10–0.28) p
Brain mets is no longer an issue? • Characteristics of patients with brain mets included in clinical trials Aldea M, et al, European Oncology & Haematology 2020
Brain mets is no longer an issue? • Intracranial ORR and Duration of Response Aldea M, et al, European Oncology & Haematology 2020
Toxicité cognitive de la radiothérapie dans les metastases cérébrales ? Peu de données mais …
Cognitive decline with brain radiotherapy Increased by WBRT Cognitive tests show decrease in • Episodic memory executive P
Guidelines Sed Lex
ESMO Guidelines • Systemic treatment alone is the recommandation In patients with CNS involvement, front-line use of ALK TKIs is effective, and alectinib [III, A] or ceritinib [IV, B] is recommended, while interim analysis of ALTA-1L brigatinib data establish this drug in this setting too [III, A; EMA-approved]. Planchard D, et al. Ann Oncol 2018, Updated Sep 2020
fabrice.barlesi@gustaveroussy.fr @barlesi
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