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Background. Due to the signifi cant increase in life expectancy and the quality of life in patients with chronic myeloid leukemia (CML) as well as the growing need for expensive tyrosine kinase inhibitors (TKI), the analysis of cost-eff ectiveness and lifelong monitoring of patients is especially important. Aim. We present the results of a multicenter observational study “The Russian Registry of Chronic Myeloid Leukemia in routine clinical practice (2011–2016)”. Materials & Methods. The study included Russian patients with CML, confi rmed by the detection of a Ph-chromosome or a BCR-ABL transcript. The statistical analysis (July 1, 2016) included 7609 patients from 80 regions of the Russian Federation (covering 95  % of the population). The annual increase in the number of patients with newly diagnosed CML was 600–650 patients. At the time of the statistical analysis, 6995 (92 %) patients remained under observation, 473 (6 %) died and 141 (2  %) were withdrawn. The registry included 44 % of men and 56 % of women, the median age was 49 years (range 2–94 years). The peak incidence (46.3 %) occurred at the age of 40–60 years. The median disease duration by the time of the analysis was 6 years (range 0.1–30 years). Results. The disease was diagnosed in the chronic phase (CP), acceleration phase, and blast crisis in 6560 (93.8 %), 380 (5.5 %) and 47 (0.7 %) patients, respectively. The proportion of risk groups according to Sokal for low, intermediate and high risk in CP was 49 %, 30 %, and 21 %, respectively. TKI were administered to 6473 (92.5 %) patients. Imatinib and the second generation TKI (TKI2) were administered to 5570 (86 %) and 903 (14 %) patients, respectively. The total of 30.4  % of patients received the increased imatinib dose of 600–800 mg. In the TKI2 group, 558 (61.7  %) patients received nilotinib and 345 (38.2  %) patients received dasatinib. The proportion of patients with completed molecular genetic studies (MGS) in 2014, 2015 and the fi rst 6 months of 2016 amounted to 61 %, 58 % and 23 %, respectively. The proportion of patients with cytogenetic studies (CS) for the same period was 28 %, 26 % and 7 %, respectively. No CS or MGS data were presented for 34 %, 35 % and 63 % of patients during this period. Optimal molecular response and major molecular response (MMR) for TKI therapy were observed in 23  % and 58  % of patients treated <  12 months and > 12 months, respectively. When nilotinib was used in the second line, MMR was obtained in 42 % of patients, and a deep molecular response was obtained in 25 % of patients (BCR-ABL < 0.01 %). Conclusion. The high effi cacy of TKI therapy was observed in the majority of patients with the possibility of achieving a minimal residual disease. The problems concerning untimely monitoring and suboptimal administration of second line treatment were identifi ed. In general, 392 А.Г. Туркина и др. КЛИНИЧЕСКАЯ ОНКОГЕМАТОЛОГИЯ достижения низкого уровня минимальной остаточной болезни. Выявлены проблемы, связанные со своевременным мониторингом, недостаточным использованием возможностей переключения на вторую линию лечения. В целом регистр больных ХМЛ позволяет интегрировать сведения в единую систему и получать информацию, характеризующую популяцию больных ХМЛ в России. Ключевые слова: хронический миелолейкоз, Регистр, ингибиторы тирозинкиназ, иматиниб, нилотиниб, качество медицинской помощи. Получено: 17 января 2017 г. Принято в печать: 27 апреля 2017 г. Для переписки: Анна Григорьевна Туркина, д-р мед. наук, проф., Новый Зыковский пр-д, д. 4а, Москва, Российская Федерация, 125167; e-mail: turkianna@yandex.ru Для цитирования: Туркина А.Г., Новицкая Н.В., Голенков А.К. и др. Регистр больных хроническим миелолейкозом в Российской Федерации: от наблюдательного исследования к оценке эффективности терапии в клинической практике. Клиническая онкогематология. 2017;10(3):390–401. DOI: 10.21320/2500-2139-2017-10-3-390-401

Chronic Myeloid Leukemia Patient Registry in the Russian Federation: From Observational Studies to the Efficacy Evaluation in Clinical Practice