2019
Results of the European survey on the assessment of deep molecular response in chronic phase CML patients during tyrosine kinase inhibitor therapy (EUREKA registry)
MOBIUS, Susanne, Thomas SCHENK, Danny HIMSEL, Jacqueline MAIER, Georg-Nikolaus FRANKE et. al.Základní údaje
Originální název
Results of the European survey on the assessment of deep molecular response in chronic phase CML patients during tyrosine kinase inhibitor therapy (EUREKA registry)
Autoři
MOBIUS, Susanne (276 Německo), Thomas SCHENK (276 Německo), Danny HIMSEL (276 Německo), Jacqueline MAIER (276 Německo), Georg-Nikolaus FRANKE (528 Nizozemské království), Susanne SAUSSELE (276 Německo), Christiane POTT (276 Německo), Hajnalka ANDRIKOVICS (348 Maďarsko), Nora MEGGYESI (348 Maďarsko), Katerina MACHOVA-POLAKOVA (203 Česká republika), Hana ZIZKOVA (203 Česká republika), Tomáš JURČEK (203 Česká republika, domácí), Semir MESANOVIC (70 Bosna a Hercegovina), Renata ZADRO (191 Chorvatsko), Enrico GOTTARDI (380 Itálie), Jens HAENIG (756 Švýcarsko), Peter SCHULD (756 Švýcarsko), Nicholas C. P. CROSS (826 Velká Británie a Severní Irsko), Andreas HOCHHAUS (276 Německo) a Thomas ERNST (276 Německo)
Vydání
Journal of cancer research and clinical oncology, Springer-Verlag, 2019, 0171-5216
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30204 Oncology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.656
Kód RIV
RIV/00216224:14110/19:00111759
Organizační jednotka
Lékařská fakulta
UT WoS
000468537100023
Klíčová slova anglicky
Chronic myeloid leukemia; CML; BCR-ABL; Molecular monitoring; Deep molecular remission; Treatment-free remission; TFR; Standardization; Eureka
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 24. 1. 2020 14:49, Mgr. Tereza Miškechová
Anotace
V originále
PurposeThe advent of tyrosine kinase inhibitor (TKI) therapies has revolutionized the treatment of chronic myeloid leukemia (CML). The European LeukemiaNet (ELN) recommends quantification of BCR-ABL1 transcripts by real-time quantitative PCR every 3months during TKI treatment. Since a proportion of patients in deep molecular response (DMR: MR4, MR4.5, MR5) maintain remission after treatment stop, assessment of DMR is crucial. However, systematically collected molecular data, monitored with sensitive standardized assays, are not available outside clinical trials.MethodsData were collected on the standardized assessment of molecular response in the context of real-life practice. BCR-ABL1 transcript levels after>2years of TKI therapy were evaluated for DMRby local laboratories as well as standardized EUTOS laboratories. Since standardized molecular monitoring is a prerequisite for treatment discontinuation, central surveillance of the performance of the participating laboratories was carried out.ResultsBetween 2014 and 2017, 3377 peripheral blood samples from 1117 CML patients were shipped to 11 standardized reference laboratories in six European countries. BCR-ABL1 transcript types were b3a2 (41.63%), b2a2 (29.99%), b2a2/b3a2 (3.58%) and atypical (0.54%). For 23.72% of the patients, the initial transcript type had not been reported. Response levels (EUTOS laboratory) were: no MMR, n=197 (6.51%); MMR, n=496 (16.40%); MR4, n=685 (22.64%); MR4.5, n=937 (30.98%); MR5, n=710 (23.47%). With a Cohen's kappa coefficient of 0.708, a substantial agreement between EUTOS-certified and local laboratories was shown.ConclusionsMulticenter DMR assessment is feasible in the context of real-life clinical practice in Europe. Information on the BCR-ABL1 transcript type at diagnosis is crucial to accurately monitor patients' molecular response during or after TKI therapy.