PMID- 36717654 OWN - NLM STAT- MEDLINE DCOM- 20230309 LR - 20231213 IS - 1476-5551 (Electronic) IS - 0887-6924 (Print) IS - 0887-6924 (Linking) VI - 37 IP - 3 DP - 2023 Mar TI - Asciminib vs bosutinib in chronic-phase chronic myeloid leukemia previously treated with at least two tyrosine kinase inhibitors: longer-term follow-up of ASCEMBL. PG - 617-626 LID - 10.1038/s41375-023-01829-9 [doi] AB - Asciminib, the first BCR::ABL1 inhibitor that Specifically Targets the ABL Myristoyl Pocket (STAMP), is approved worldwide for the treatment of adults with Philadelphia chromosome-positive chronic myeloid leukemia in chronic phase (CML-CP) treated with >/=2 prior tyrosine kinase inhibitors (TKIs). In ASCEMBL, patients with CML-CP treated with >/=2 prior TKIs were randomized (stratified by baseline major cytogenetic response [MCyR]) 2:1 to asciminib 40 mg twice daily or bosutinib 500 mg once daily. Consistent with previously published primary analysis results, after a median follow-up of 2.3 years, asciminib continued to demonstrate superior efficacy and better safety and tolerability than bosutinib. The major molecular response (MMR) rate at week 96 (key secondary endpoint) was 37.6% with asciminib vs 15.8% with bosutinib; the MMR rate difference between the arms, after adjusting for baseline MCyR, was 21.7% (95% CI, 10.53-32.95; two-sided p = 0.001). Fewer grade >/=3 adverse events (AEs) (56.4% vs 68.4%) and AEs leading to treatment discontinuation (7.7% vs 26.3%) occurred with asciminib than with bosutinib. A higher proportion of patients on asciminib than bosutinib remained on treatment and continued to derive benefit over time, supporting asciminib as a standard of care for patients with CML-CP previously treated with >/=2 TKIs. CI - (c) 2023. The Author(s). FAU - Hochhaus, Andreas AU - Hochhaus A AUID- ORCID: 0000-0003-0626-0834 AD - Universitatsklinikum Jena, Jena, Germany. andreas.hochhaus@med.uni-jena.de. FAU - Rea, Delphine AU - Rea D AD - Adult Hematology and INSERM CIC1427, Hopital Saint-Louis, Paris, France. FAU - Boquimpani, Carla AU - Boquimpani C AD - HEMORIO, State Institute of Hematology Arthur de Siquiera Cavalcanti, Rio de Janeiro, Brazil. AD - Oncoclinica Centro de Tratamento Oncologico, Rio de Janeiro, RJ, Brazil. FAU - Minami, Yosuke AU - Minami Y AUID- ORCID: 0000-0003-0863-0739 AD - National Cancer Center Hospital East, Kashiwa, Japan. FAU - Cortes, Jorge E AU - Cortes JE AUID- ORCID: 0000-0002-8636-1071 AD - Georgia Cancer Center, Augusta, GA, USA. FAU - Hughes, Timothy P AU - Hughes TP AD - South Australian Health and Medical Research Institute and University of Adelaide, Adelaide, SA, Australia. FAU - Apperley, Jane F AU - Apperley JF AUID- ORCID: 0000-0002-1710-1794 AD - Centre for Haematology Imperial College London, London, UK. FAU - Lomaia, Elza AU - Lomaia E AD - Almazov National Medical Research Centre, St. Petersburg, Russia. FAU - Voloshin, Sergey AU - Voloshin S AD - Russian Research Institute of Hematology and Transfusiology, St. Petersburg, Russia. FAU - Turkina, Anna AU - Turkina A AUID- ORCID: 0000-0001-9947-2371 AD - National Medical Research Center for Hematology, Moscow, Russia. FAU - Kim, Dong-Wook AU - Kim DW AD - Uijeongbu Eulji Medical Center, Geumo-dong, Uijeongbu-si, South Korea. FAU - Abdo, Andre AU - Abdo A AD - Instituto do Cancer do Estado de Sao Paulo (ICESPSP), Sao Paulo, Brazil. FAU - Fogliatto, Laura Maria AU - Fogliatto LM AD - Hospital de Clinicas de Porto Alegre (HCPA), Porto Alegre, Brazil. FAU - le Coutre, Philipp AU - le Coutre P AD - Charite-Universitatsmedizin Berlin, Berlin, Germany. FAU - Sasaki, Koji AU - Sasaki K AUID- ORCID: 0000-0002-9140-0610 AD - Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. FAU - Kim, Dennis Dong Hwan AU - Kim DDH AD - Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, ON, Canada. FAU - Saussele, Susanne AU - Saussele S AUID- ORCID: 0000-0003-0357-5785 AD - III. Medizinische Klinik, Medizinische Fakultat Mannheim der Universitat Heidelberg, Mannheim, Germany. FAU - Annunziata, Mario AU - Annunziata M AD - Division of Hematology, AORN Cardarelli, Naples, Italy. FAU - Chaudhri, Naeem AU - Chaudhri N AD - King Faisal Specialist Hospital & Research Center, Riyadh, Kingdom of Saudi Arabia. FAU - Chee, Lynette AU - Chee L AUID- ORCID: 0000-0002-4250-4448 AD - Peter MacCallum Cancer Center and The Royal Melbourne Hospital, Parkville, VIC, Australia. FAU - Garcia-Gutierrez, Valentin AU - Garcia-Gutierrez V AUID- ORCID: 0000-0003-4752-0815 AD - Servicio de Hematologia, Hospital Universitario Ramon y Cajal, Instituto Ramon y Cajal de Investigacion Sanitaria (IRYCIS), Madrid, Spain. FAU - Kapoor, Shruti AU - Kapoor S AD - Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA. FAU - Allepuz, Alex AU - Allepuz A AD - Novartis Pharma AG, Basel, Switzerland. FAU - Quenet, Sara AU - Quenet S AD - Novartis Pharma AG, Basel, Switzerland. FAU - Bedoucha, Veronique AU - Bedoucha V AD - Novartis Pharma AG, Basel, Switzerland. FAU - Mauro, Michael J AU - Mauro MJ AUID- ORCID: 0000-0002-2251-4032 AD - Memorial Sloan Kettering Cancer Center, New York, NY, USA. LA - eng GR - P30 CA008748/CA/NCI NIH HHS/United States PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20230130 PL - England TA - Leukemia JT - Leukemia JID - 8704895 RN - 5018V4AEZ0 (bosutinib) RN - 0 (asciminib) RN - 0 (Tyrosine Kinase Inhibitors) RN - 0 (Protein Kinase Inhibitors) SB - IM MH - Adult MH - Humans MH - Tyrosine Kinase Inhibitors MH - Follow-Up Studies MH - Treatment Outcome MH - Protein Kinase Inhibitors/therapeutic use MH - *Leukemia, Myeloid, Chronic-Phase MH - *Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy PMC - PMC9991909 COIS- The authors declare the following potential conflicts of interest: AH received institutional research support from Novartis, Bristol Myers Squibb, Incyte, and Pfizer and personal fees from Novartis and Incyte. DR received personal fees from Novartis, Pfizer, and Incyte. CB received grants from Novartis during the conduct of the study. YM received honoraria from Bristol Myers Squibb, Novartis, Pfizer, and Astellas. JEC received grants and consulting fees from Novartis, grants and consulting fees from Pfizer, and grants from Bristol Myers Squibb. TPH received grants and honoraria for advisory boards and symposia from Novartis and grants from Bristol Myers Squibb. JFA received honoraria, grants, and personal fees from Novartis and grants and personal fees from Pfizer. EL received grants from Novartis and personal fees and non-financial support from Novartis, Pfizer, and Bristol Myers Squibb. SV received personal fees and non-financial support from Novartis, AbbVie, Janssen, Sanofi, and BIOCAD; non-financial support from Pfizer; and personal fees from Takeda and AstraZeneca. AT declares no competing financial interests. D-WK received grants from Novartis, Bristol Myers Squibb, Pfizer, ILYANG, and Takeda. AAbdo received honoraria from Novartis and Takeda. LMF declares no competing financial interests. PlC received speaker's honoraria from Novartis, Incyte, Pfizer, and Bristol Myers Squibb. KS received research funding and honoraria for advisory boards from Novartis. DDHK received grants, honoraria, and consulting fees from Novartis; grants from Bristol Myers Squibb; and honoraria from Pfizer and Paladin. SS received honoraria, grants, and personal fees from Novartis and grants and personal fees from Bristol Myers Squibb and Incyte, and honoraria from Roche and Pfizer. MA declares no competing financial interests. NC declares no competing financial interests. LC received honoraria and participated in advisory boards for Novartis and Otsuka. VG-G received grants, non-financial support, and honoraria from Novartis, Pfizer, Bristol Myers Squibb, and Incyte. SK is an employee of Novartis. AAllepuz is an employee of Novartis. SQ is an employee of Novartis. VB is an employee of Novartis. MJM received personal fees from Bristol Myers Squibb, Takeda, and Pfizer. EDAT- 2023/01/31 06:00 MHDA- 2023/03/10 06:00 PMCR- 2023/01/30 CRDT- 2023/01/30 23:43 PHST- 2023/01/06 00:00 [received] PHST- 2023/01/18 00:00 [accepted] PHST- 2023/01/12 00:00 [revised] PHST- 2023/01/31 06:00 [pubmed] PHST- 2023/03/10 06:00 [medline] PHST- 2023/01/30 23:43 [entrez] PHST- 2023/01/30 00:00 [pmc-release] AID - 10.1038/s41375-023-01829-9 [pii] AID - 1829 [pii] AID - 10.1038/s41375-023-01829-9 [doi] PST - ppublish SO - Leukemia. 2023 Mar;37(3):617-626. doi: 10.1038/s41375-023-01829-9. Epub 2023 Jan 30.