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  • Küçük Resim
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    A Multi-Center Study on the Efficacy of Eltrombopag in Management of Refractory Chronic Immune Thrombocytopenia: A Real-Life Experience
    (2019) Çekdemir, Demet; Güvenç, Serkan; Özdemirkıran, Füsun; Eser, Ali; Şahin Haydaroğlu, Handan; Turak Ermiş, Esra; Esen, Ramazan; Cömert, Melda; Sadri, Sevil; Aslaner, Müzeyyen; Uncu Ulu, Bahar; Karakuş, Abdullah; Bapur Selim, Derya; Alacacıoğlu, İnci; Aydın, Demet; Tekinalp, Atakan; Namdaroğlu, Sinem; Ceran, Funda; Tarkun, Pınar; Kiper, Demet; Çetiner, Mustafa; Yenerel, Mustafa; Demir, Muzaffer Ahmet; Yılmaz, Güven; Terzi, Hatice; Atilla, Erden; Malkan, Yavuz Ümit; Acar, Kadir; Öztürk, Erman; Tombak, Anıl; Sunu, Cenk; Salim, Ozan; Alayvaz, Nevin; Sayan, Özkan; Ozan, Ülkü; Ozan, Mesut; Gökgöz, Zafer; Andıç, Neslihan; Kızılkılıç, Ebru; Noyan, Figen; Özen, Mehmet; Tanrıkulu Pepedil, Funda; Alanoğlu, Güçhan; Özkan, Hasan Atilla; Aslan, Vahap; Çetin, Güven; Akyol Erikçi, Alev; Deveci, Burak; Ersoy Dursun, Fadime; Dermenci, Hasan; Aytan, Pelin; Gündüz, Mehmet; Karakuş, Volkan; Özlü, Can; Demircioğlu, Sinan; Akay Yanar, Olga Meltem; Özatlı, Düzgün
    Abstract: Objective: The aim of the present study was to evaluate the efficacyand safety of eltrombopag, an oral thrombopoietin receptor agonist,in patients with chronic immune thrombocytopenia (ITP).Materials and Methods: A total of 285 chronic ITP patients (187women, 65.6%; 98 men, 34.4%) followed in 55 centers were enrolledin this retrospective cohort. Response to treatment was assessedaccording to platelet count (/mm3) and defined as complete (plateletcount of >100,000/mm3), partial (30,000-100,000/mm3 or doublingof platelet count after treatment), or unresponsive (<30,000/mm3).Clinical findings, descriptive features, response to treatment, and sideeffects were recorded. Correlations between descriptive, clinical, andhematological parameters were analyzed.Results: The median age at diagnosis was 43.9±20.6 (range: 3-95)years and the duration of follow-up was 18.0±6.4 (range: 6-28.2)months. Overall response rate was 86.7% (n=247). Complete andpartial responses were observed in 182 (63.8%) and 65 (22.8%)patients, respectively. Thirty-eight patients (13.4%) did not respondto eltrombopag treatment. For patients above 60 years old (n=68),overall response rate was 89.7% (n=61), and for those above 80 years old (n=12), overall response rate was 83% (n=10). Consideringthrombocyte count before treatment, eltrombopag significantlyincreased platelet count at the 1st, 2nd, 3rd, 4th, and 8th weeks oftreatment. As the time required for partial or complete responseincreased, response to treatment was significantly reduced. The timeto reach the maximum platelet levels after treatment was quitevariable (1-202 weeks). Notably, the higher the maximum plateletcount after eltrombopag treatment, the more likely that side effectswould occur. The most common side effects were headache (21.6%),weakness (13.7%), hepatotoxicity (11.8%), and thrombosis (5.9%).Conclusion: Results of the current study imply that eltrombopag isan effective therapeutic option even in elderly patients with chronicITP. However, patients must be closely monitored for response andside effects during treatment. Since both response and side effectsmay be variable throughout the follow-up period, patients should beevaluated dynamically, especially in terms of thrombotic risk factors.
  • Küçük Resim Yok
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    Multicenter retrospective analysis regarding the clinical manifestations and treatment results in patients with hairy cell leukemia: twenty-four year Turkish experience in cladribine therapy
    (Wiley, 2015) Hacioglu, Sibel; Bilen, Yusuf; Eser, Ali; Sivgin, Serdar; Gurkan, Emel; Yildirim, Rahsan; Aydogdu, Ismet
    In this multicenter retrospective analysis, we aimed to present clinical, laboratory and treatment results of 94 patients with Hairy cell leukemia diagnosed in 13 centers between 1990 and 2014. Sixty-six of the patients were males and 28 were females, with a median age of 55. Splenomegaly was present in 93.5% of cases at diagnosis. The laboratory findings that came into prominence were pancytopenia with grade 3 bone marrow fibrosis. Most of the patients with an indication for treatment were treated with cladribine as first-line treatment. Total and complete response of cladribine was 97.3% and 80.7%. The relapse rate after cladribine was 16.6%, and treatment related mortality was 2.5%. Most preferred therapy ( 95%) was again cladribine at second-line, and third line with CR rate of 68.4% and 66.6%, respectively. The 28-month median OS was 91.7% in all patients and 25-month median OS 96% for patients who were given cladribine as first-line therapy. In conclusion, the first multicenter retrospective Turkish study where patients with HCL were followed up for a long period has revealed demographic characteristics of patients with HCL, and confirmed that cladribine treatment might be safe and effective in a relatively large series of the Turkish study population. Copyright (C) 2014 John Wiley & Sons, Ltd.