Imfirst: A phase IIIb, safety, single arm study of carboplatin (CB) or cisplatin (CP) plus etoposide (ET) with atezolizumab (ATZ) in patients with untreated extensive-stage small cell lung cancer (ES-SCLC) in Spain—Primary safety results of the induction phase
| Autor: | Ruben Alonso, Natalia Fernandez, Gerardo Huidobro Vence, Santiago Ponce Aix, Guillot Mónica, Enric Carcereny, Maria Rosario Garcia Campelo, Manuel Cobo, Emilio Esteban, Margarita Majem, Manuel Domine, Edurne Arriola, Jose Fuentes Pradera, Bartomeu Massuti, Alberto Moreno, Juan Felipe Cordoba, Natalia Lerones, Javier de Castro, Ana Laura Ortega, L. Crama |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Journal of Clinical Oncology r-IGTP. Repositorio Institucional de Producción Científica del Instituto de Investigación Germans Trias i Pujol instname |
| ISSN: | 1527-7755 0732-183X |
| Popis: | 8567 Background: Clinical trial (CT) IMpower133 met both primary endpoints and is the first CT to show significant clinical improvement over standard chemotherapy (C) with a good safety profile in first line (1L) ES-SCLC. The addition of ATZ to CB + ET resulted in an OS landmark of 34% and 22% compared to 21% and 16.8% of patients alive at 18 and 24 months respectively versus C. IMfirst evaluates ATZ + CB or CP + ET in a broader patient population than the pivotal study. ECOG Performance status (PS) 2, asymptomatic untreated brain metastases, underlying stable autoimmune diseases and HIV+ pts are eligible. IMfirst also includes the possibility of 6 C induction cycles according to investigator´s choice and consolidation radiotherapy. Methods: To evaluate the safety and efficacy of ATZ added to CB or CP + ET as 1L treatment in an interventional real world setting of ES-SCLC. Exploratory endpoints include tumor biomarker analysis related to ATZ. Results: As of Oct 2020, 117 pts had been enrolled, 105 treated with ATZ + CB + ET and 12 with ATZ + CP + ET. The median age was 65 years (Y) (range 35-89); 84 males; 14 pts (12%) had CNS metastases and 66 pts were current smokers and 50 former smokers, one had never smoked. The PS was 0 in 28 pts (24%), 1 in 75 (64%) and 2 in 14 (12%). The median of cycles of ATZ received was 4 for all the pts (range 1-12) and 2 for the pts (40) in maintenance phase (range 1-8). Number of pts with adverse events (AEs) was 109, 36 with Serious Adverse Events (SAEs) and 63 with AEs. 8 pts had SAEs related to treatment, 4 had adverse events of special interest and 13 pts discontinued the treatment due to AEs: 6 to ATZ, 12 to CB or CP and 10 to ET, 1 patient discontinued ATZ due to a related AE. Table shows the treatment related AEs (TRAEs). No grade 5 TRAEs were reported. Conclusions: IMfirst induction phase analysis confirms the safety profile of ATZ plus C in a broader population of patients. Efficacy, biomarker and further safety analyses will be presented in the future with longer follow up.[Table: see text] |
| Databáze: | OpenAIRE |
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