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Öğe Autologous hematopoietic progenitor cell mobilization and collection in adult patients presenting with multiple myeloma and lymphoma: A position-statement from the Turkish Society of Apheresis (TSA)(Pergamon-Elsevier Science Ltd, 2017) Tekgunduz, Emre; Arat, Mutlu; Goker, Hakan; Ozdogu, Hakan; Kaynar, Leylagul; Cagirgan, Seckin; Erkurt, Mehmet Ali; Vural, Filiz; Kiki, Ilhami; Altuntas, Fevzi; Demirkan, FatihAutologous hematopoietic cell transplantation (AHCT) is a routinely used procedure in the treatment of adult patients presenting with multiple myeloma (MM), Hodgkin lymphoma (HL) and various subtypes of non-Hodgkin lymphoma (NHL) in upfront and relapsed/refractory settings. Successful hematopoietic progenitor cell mobilization (HPCM) and collection are the rate limiting first steps for application of AHCT. In 2015, alinost 1700 AHCT procedures have been performed for MM, HL and NHL in Turkey. Although there are recently published consensus guidelines addressing critical issues regarding autologous HPCM, there is a tremendous heterogeneity in terms of mobilization strategies of transplant centers across the world. In order to pave the way to a more standardized HPCM approach in Turkey, Turkish Society of Apheresis (TSA) assembled a working group consisting of experts in the field. Here we report the position statement of TSA regarding autologous HPCM mobilization strategies in adult patients presenting with MM and lymphoma. (C) 2017 Elsevier Ltd. All rights reserved.Öğe 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)(Pergamon-Elsevier Science Ltd, 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, Hulseyin; Ural, Ali Ugur; Basturk, Abdulkadir; Arat, Mutlu; Albayrak, Murat; Ozturk, Erman; Akyol, Alev; Bolaman, Ali Zahit; Nevruz, Oral; Ozkan, Hasan Atilla; Ozgur, Gokhan; Altuntas, FevziAutologous 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.Öğe Early Access Program Results From Turkey and a Literature Review on Daratumumab Monotherapy Among Heavily Pretreated Patients With Relapsed/Refractory Myeloma(Cig Media Group, Lp, 2020) Beksac, Meral; Aydin, Yildiz; Goker, Hakan; Turgut, Mehmet; Besisik, Sevgi Kalayoglu; Cagirgan, Seckin; Tekgunduz, EmreThe present study investigated the efficacy and safety profile of daratumumab monotherapy in 42 patients with relapsed refractory multiple myeloma through a Turkish early access program. the current findings have confirmed the efficacy of daratumumab monotherapy in heavily pretreated patients with refractory multiple myeloma because of the deep and durable responses and favorable safety and tolerability profile. Background: in countries where frontline drug approval is limited to first-generation proteasome inhibitors or immunomodulatory drugs, relapses have been both more frequent and less durable. We investigated real world data on the efficacy and safety of daratumumab monotherapy among patients with relapsed refractory multiple myeloma (RRMM) from Turkey using a prospective early access program. Patients and Methods: A total of 42 patients with RRMM after a minimum of 3 previous lines of proteasome inhibitor/immunomodulatory drug-based treatments were included from 25 centers across Turkey. Daratumumab monotherapy was administered intravenously at a dose of 16 mg/kg weekly (cycles 1-2), on alternate weeks (cycles 3-6), and monthly thereafter. Results: the median daratumumab monotherapy duration was 5.5 months (range, 0.2-28.7 months). the overall response rate was 45.2%, including 14 (33.3%) partial responses, 4 (9.5%) very good partial responses, and 1 (2.4%) complete response. the median duration of response was 4.9 months. the median progression-free survival (PFS) was 5.5 (95% confidence interval, 2.6-8.4 months) with 12- and 18-month PFS rates of 35.7% and 31.0%, respectively. the median overall survival was not reached; the 12- and 18-month overall survival rates were 64.3% and 59.5%, respectively. the depth of response had a significant effect on PFS (log-rank test, P = .026). Overall, of the 76 adverse events reported, 33 (43.4%) were grade >= 3; only 4 (9.52%) were grade 3 infusion-related reactions. No infusion-related reactions or adverse events led to treatment discontinuation. Conclusion: the present findings from our daratumumab early access program have confirmed the efficacy and safety profile of daratumumab monotherapy in heavily pretreated Turkish patients with RRMM.Öğe Incidence and risk factors for hepatic sinusoidal obstruction syndrome after allogeneic hematopoietic stem cell transplantation: A retrospective multicenter study of Turkish hematology research and education group (ThREG)(Pergamon-Elsevier Science Ltd, 2020) Soyer, Nur; Gunduz, Mehmet; Tekgunduz, Emre; Deveci, Burak; Ozdogu, Hakan; Sahin, Handan Haydaroglu; Topcuoglu, PervinHepatic sinusoidal obstruction syndrome (HSOS) is a potentially life-threatening complication of allogeneic hematopoietic stem cell transplantation (allo-HSCT). We retrospectively evaluated the incidence, risk factors, treatment and survival for HSOS after allo-HSCT in Turkey. We also reported our experience of defibrotide (DF) for HSOS prophylaxis in high-risk (HR) patients. Across Turkey, 1153 patients from 10 centers were enrolled in the study. We evaluated the medical records of patients who were treated with allo-SCT between January 2012 and December 2015. The study included 1153 patients (687 males/466 females) with median age of 38 (15 - 71) years. The incidence of HSOS was 7.5 % (n = 86). The incidences of HSOS in the HR/DF +, HR/DF- and standard risk (SR) group were 8%, 66.7 % and 6.2 %, respectively. The rate of HSOS development was not statistically different between HR/DF + and SR group (p = 0.237). HSOS prophylaxis (defibrotide) was significantly decreased HSOS-related mortality (p = 0.004). The incidence of HSOS was found similar to literature in this large Turkish cohort. Defibrotide prophylaxis appears to be associated with low incidence of HSOS development and reduced HSOS-related mortality. Although these results are promising, future studies are needed to support the efficacy of defibrotide prophylaxis in patients with risk of HSOS.Öğe Incidence and risk factors for hepatic sinusoidal obstruction syndrome after allogeneic transplantation: Retrospective multicenter study of Turkish hematology research and education group (THREG), updated data(Nature Publishing Group, 2019) Soyer, Nur; Gunduz, Mehmet; Tekgunduz, Emre; Deveci, Burak; Ozdogu, Hakan; Sahin, Handan Haydaroglu; Turak, Esra Ermis; Okay, Mufide; Kuku, Irfan; Hindilerden, Ipek Yonal; Topcuoglu, Pervin; Altuntas, Feviz; Karadogan, Ihsan; Pehlivan, Mustafa; Unal, Ali; Goker, Hakan; Erkurt, Mehmet Ali; Besisik, Sevgi Kalayoglu; Vural, FilizÖğe Prospective registry of adult patients receiving therapeutic plasma exchange with a presumptive diagnosis of thrombotic microangiopathy (TMA): The Turkish hematology research and education group (ThREG)-TMA02 study(Pergamon-Elsevier Science Ltd, 2022) Akpinar, Seval; Tekgunduz, Emre; Esen, Ramazan; Yilmaz, Mehmet; Karakus, Volkan; Vural, Filiz; Gediz, FusunTo understand who uses social media and how often they do so, we examined the personality traits that predict frequency of using a set of 10 different types of social media (e.g., social networks, blogs, virtual worlds). Using survey data collected from two large-scale samples of young adults (Exploratory Study 1 N = 1586, Confirmatory Study 2 N =1432), we conducted direct replications of our findings to test whether the observed relationships between social media use and personality traits were reliable. Our replicated findings reveal that sex, age and extraversion are reliable predictors of several types of social media use (e.g., Facebook, Messaging Platforms, Online Forums), while other traits (e.g., agreeableness, Machiavellianism) showed unreliable associations. Our findings also reveal dimensions of multiplatform social media use that categorize the media ecologies of young adults and show significant associations with individual difference measures. (C) 2020 Published by Elsevier Inc.Öğe Turkish Acute Lymphoblastic Leukemia Registry, Retrospective Phase Data(Amer Soc Hematology, 2019) Demirkan, Fatih; Ciftciler, Rafiye; Sevindik, Omur Gokmen; Tekgunduz, Emre; Erkurt, Mehmet Ali; Vural, Filiz; Karakus, Volkan[No Abstract Available]
