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 - ONCOHIGHLIGHTS 2020
Metastases cerebrales des cancers
   bronchiques alk rearrangés
             Less is more
      FABRICE BARLESI, MD, PhD
     Institut Gustave Roussy - Paris
                                       M-MA-00000097
METASTASES CEREBRALES DES CANCERS BRONCHIQUES ALK REARRANGÉS - LESS IS MORE FABRICE BARLESI, MD, PHD - ONCOHIGHLIGHTS 2020
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.
METASTASES CEREBRALES DES CANCERS BRONCHIQUES ALK REARRANGÉS - LESS IS MORE FABRICE BARLESI, MD, PHD - ONCOHIGHLIGHTS 2020
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
METASTASES CEREBRALES DES CANCERS BRONCHIQUES ALK REARRANGÉS - LESS IS MORE FABRICE BARLESI, MD, PHD - ONCOHIGHLIGHTS 2020
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
METASTASES CEREBRALES DES CANCERS BRONCHIQUES ALK REARRANGÉS - LESS IS MORE FABRICE BARLESI, MD, PHD - ONCOHIGHLIGHTS 2020
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
METASTASES CEREBRALES DES CANCERS BRONCHIQUES ALK REARRANGÉS - LESS IS MORE FABRICE BARLESI, MD, PHD - ONCOHIGHLIGHTS 2020
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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