Core-binding factor acute myeloid leukemia with t(8;21) Risk factors and a novel scoring system (I-CBFit)

Ustun, Celalettin; Morgan, Elizabeth; Moodie, Erica E. M.; Pullarkat, Sheeja; Yeung, Cecilia; Broesby-Olsen, Sigurd; Ohgami, Robert; Kim, Young; Sperr, Wolfgang; Vestergaard, Hanne; Chen, Dong; Kluin, Philip M.; Dolan, Michelle; Mrozek, Krzysztof; Czuchlewski, David; Horny, Hans-Peter; George, Tracy I.; Kristensen, Thomas Kielsgaard; Ku, Nam K.; Yi, Cecilia Arana; Moller, Michael Boe; Marcucci, Guido; Baughn, Linda; Schiefer, Ana-Iris; Hilberink, J. R.; Pullarkat, Vinod; Shanley, Ryan; Kohlschmidt, Jessica; Coulombe, Janie; Salhotra, Amandeep; Soma, Lori; Cho, Christina; Linden, Michael A.; Akin, Cem; Gotlib, Jason; Hoermann, Gregor; Hornick, Jason; Nakamura, Ryo; Deeg, Joachim; Bloomfield, Clara D.; Weisdorf, Daniel; Litzow, Mark R.; Valent, Peter; Huls, Gerwin; Perales, Miguel-Angel und Borthakur, Gautam (2018): Core-binding factor acute myeloid leukemia with t(8;21) Risk factors and a novel scoring system (I-CBFit). In: Cancer Medicine, Bd. 7, Nr. 9: S. 4447-4455

Abstract

Background: Although the prognosis of core-binding factor (CBF) acute myeloid leukemia (AML) is better than other subtypes of AML, 30% of patients still relapse and may require allogeneic hematopoietic cell transplantation (alloHCT). However, there is no validated widely accepted scoring system to predict patient subsets with higher risk of relapse. Methods: Eleven centers in the US and Europe evaluated 247 patients with t(8;21) (q22;q22). Results: Complete remission (CR) rate was high (92.7%), yet relapse occurred in 27.1% of patients. A total of 24.7% of patients received alloHCT. The median diseasefree (DFS) and overall (OS) survival were 20.8 and 31.2 months, respectively. Age, KIT D816V mutated (11.3%) or nontested (36.4%) compared with KIT D816V wild type (52.5%), high white blood cell counts (WBC), and pseudodiploidy compared with hyper- or hypodiploidy were included in a scoring system (named I-CBFit). DFS rate at 2 years was 76% for patients with a low-risk I-CBFit score compared with 36% for those with a high-risk I-CBFit score (P < 0.0001). Low- vs high-risk OS at 2 years was 89% vs 51% (P < 0.0001). Conclusions: I-CBFit composed of readily available risk factors can be useful to tailor the therapy of patients, especially for whom alloHCT is not need in CR1 (ie, patients with a low-risk score).

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 2045-7634
• Sprache: Englisch