Tıp Fakültesi / Faculty of Medicine

Permanent URI for this collectionhttps://hdl.handle.net/11727/1403

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Author: search.filters.author.Albayrak, Murat

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    Long-term Results of Imatinib Discontinuation in Patients with Chronic-phase Chronic Myeloid Leukemia: A National Multicenter Prospective Study
    (2023) Savas, Emine Merve; Yilmaz, Seda; Dikyar, Ayse Asena Baser; Ozkurt, Zubeyde Nur; Ocal, Ramazan; Can, Ferda; Pepeler, Sezgin; Kaynar, Lale Aydin; Gokcen, Sanem; Yildiz, Abdulkerim; Albayrak, Murat; Karakus, Sema; Ceneli, Ozcan; Yagci, Munci; 37877113
    Objective: The discovery of imatinib was a milestone for chronic myeloid leukemia (CML). As the life expectancy of CML patients has approached that of the general population, research has shifted towards improving quality of life and economic considerations. After 2010, it was shown that some patients could maintain molecular response even after discontinuing imatinib. This national multicenter prospective cohort study aimed to observe the long-term consequences of discontinuing imatinib therapy in adult chronic-phase CML patients. Materials and Methods: We enrolled 41 CML patients from 4 different centers in this non-randomized single-arm trial. Molecular responses of all patients were re-evaluated using real-time polymerase chain reaction at a single center. The median follow-up time after imatinib discontinuation was 48 months (minimum-maximum: 6-81 months). Results: The rate of molecular relapse-free survival at 48 months was 33.2% (confidence interval: 48.2-18.2). Twenty-seven of 41 patients lost their major molecular response, treatment was started again, and deep molecular response was re-achieved with imatinib in all cases. There was no significant relationship between molecular relapse and clinical factors such as duration of treatment or molecular response status. Discontinuing imatinib resulted in savings of approximately 4,392,000 Turkish lira or 245,150 US dollars. Conclusion: Tyrosine kinase inhibitor discontinuation with close molecular monitoring is a safe option and provides important national economic benefits for chronic phase CML patients. This approach should be considered for all eligible patients. This is the first tyrosine kinase inhibitor discontinuation study from Turkiye.
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    Current Practice of Autologous Hematopoietic Progenitor Cell Mobilization in Adult Patients with Multiple Myeloma And Lymphoma: The Results of A Survey From Turkish Hematology Research And Education Group (Threg)
    (2017) Tekgunduz, Emre; Demirkan, Fatih; Vural, Filiz; Goker, Hakan; Ozdogu, Hakan; Kiki, Ilhami; Aydogdu, Ismet; Kaynar, Leylagul; Erkurt, Mehmet Ali; Cagirgan, Seckin; Besisik, Sevgi; Dagdas, Simten; Koca, Ebru; Kadikoylu, Gurhan; Gunduz, Eren; Yilmaz, Mehmet; Bekoz, Huseyin; Ural, Ali Ugur; Basturk, Abdulkadir; Arat, Mutlu; Albayrak, Murat; Ozturk, Erman; Akyol, Alev; Bolaman, Ali Zahit; Nevruz, Oral; Ozkan, Hasan Atilla; Ozgur, Gokhan; Altuntas, Fevzi; 29153305
    Autologous hematopoietic cell transplantation (AHCT) is an established treatment option for adult patients presenting with multiple myeloma (MM), Hodgkin lymphoma (HL) and various subtypes of non-Hodgkin lymphoma (NHL) in upfront and/or relapsed/refractory disease settings. Although there are recently published consensus guidelines addressing critical issues regarding autologous hematopoietic progenitor cell mobilization (HPCM), mobilization strategies of transplant centers show high variability in terms of routine practice. In order to understand the current institutional policies regarding HPCM in Turkey and to obtain the required basic data for preparation of a national positional statement on this issue, Turkish Hematology Research and Education Group (ThREG) conducted a web-based HPCM survey. The survey was designed to include multiple-choice questions regarding institutional practice of HPCM in adults presenting MM, HL, and NHL. The representatives of 27 adult HCT centers participated to the study. Here we report the results of this survey shedding light on the real world experience in Turkey in terms of autologous HPCM mobilization strategies in patients presenting with MM and lymphoma. (C) 2017 Elsevier Ltd. All rights reserved.
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    Elotuzumab Plus Pomalidomide or Lenalidomide is Able to Achieve Durable >= Vgpr Responses Among Immunomodulatory/Proteasome Inhibitor Refractory Myeloma Patients: A Report on Multicenter Experience From Turkey
    (2019) Beksac, Meral; Seval, Guldane Cengiz; Paydas, Semra; Tuglular, Tulin Firatli; Arslan, Onder; Goker, Hakan; Kaynar, Leylagul; Altuntas, Fevzi; Atalay, Figen; Teke, Havva Uskudar; Bolaman, Ali Zahit; Pehlivan, Mustafa; Sonmez, Mehmet; Demir, Ahmet Muzaffer; Topcuoglu, Pervin; Yilmaz, Mehmet; Kabukcu, Sibel Hacioglu; Albayrak, Murat; Yurttas, Nurgul Ozer; Salihoglu, Ayse; Cakar, Merih Kizil; Gurman, Gunhan