J 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

Štítky

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.