Kronik Myeloid Lösemi Tanılı Hastaların Klinik Özellikleri ve Tedaviye Yanıtlarının Değerlendirilmesi: Tek Merkez Deneyimi

Abstract

Background: Chronic myeloid leukemia is a clonal hematopoietic stem cell disorder that leads to an increase in myeloid cells, erythroid series, and platelets in peripheral blood and causes pronounced myeloid hyperplasia in the bone marrow. The treatment and follow-up criteria in patients with CML have changed significantly in the recent years. In the pre-imatinib period, CML has been treated with hydroxyurea, interferon therapy, chemotherapy, and most effectively, allogenic stem cell transplantation. The addition of imatinib mesylate, a tyrosine kinase inhibitor, to the treatment regime provided a superior overall survival rate compared to previous standard treatments. In this study, our aim is to demonstrate the demographic characteristics, clinical features, treatment and follow-up strategies, response status, and general survival rates of CML patients treated in our clinic. Materials and Methods: 110 patients who were diagnosed with chronic phase CML during 2003–2019 were included in this study. The demographic characteristics and clinical findings including laboratory values, ultrasound findings, and bone marrow pathology results were evaluated retrospectively from their medical records Results: Among the 110 patients included, 59 (53.6%) were male, and 51 (46.4%) were female, and the median age was 49.5 (18–82). At the time of diagnosis, only 32 (29.0%) patients were symptomatic, 71 (64.5%) had splenomegaly, and 51 (46.4%) had hepatomegaly. All patients were given 400 mg of imatinib as first-line therapy. With imatinib treatment, the rates of complete hematologic response (CHR), complete cytogenetic response (CyCR), and major molecular response (MMR) were 100.0%, 72.5% and 69.6%, respectively. In the follow-up, 3 (2.7%) patients were observed to progress to the blastic phase. The overall survival rate was 86.4%. Conclusions: Imatinib has proven to be a tolerable, effective and safe agent in the first-line treatment of CML patients. Treatment choice after imatinib should take into consideration the patients' comorbidities.