Browsing by Author "Soysal, Teoman"

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    Long-term results of brentuximab vedotin in relapsed and refractory Hodgkin lymphoma: Multi-center real-life experience
    (Springer, 2019-12-11) Özbalak, Murat; Salihoğlu, Ayşe; Soysal, Teoman; Karadoğan, İhsan; Paydaş, Semra; Özdemir, Evren; Yıldız, Birol; Karadurmuş, Nuri; Kaynar, Leylagül; Yağcı, Münci; Topçuoğlu, Pervin; Özcan, Muhit; Birtaş, Elif; Göker, Hakan; Ferhanoğlu, Burhan; Özkocaman, Vildan; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İç Hastalıkları Anabilim Dalı/Hematoloji Bilim Dalı.; AAH-1854-2021; 6603145040
    Classical Hodgkin lymphoma (cHL) is considered a curable disease; however, approximately one-third of responders experience disease relapse following first-line therapy. Several studies have shown the efficacy of brentuximab vedotin (BV) in patients with relapsed/refractory HL. We present a retrospective analysis of 58 patients with relapsed/refractory HL treated with BV in a named patient program from 11 centers. The median follow-up duration was 20 (range, 4-84) months. The best overall response rate was 64% (complete response [CR], 31%; partial response [PR], 33%). The 5-year progression-free survival (PFS) and overall survival (OS) rates were 12% (95% confidence interval [CI], 0.05-0.22) and 26% (95% CI, 0.16-0.38), respectively. Among patients who achieved CR, the estimated 5-year PFS and OS rates were 32% (95% CI, 0.13-0.54) and 60% (95% CI, 0.33-0.78), respectively. A total of 26 patients underwent subsequent stem cell transplantation. The 5-year PFS and OS rates for 10 patients who had consolidative stem cell transplantation were 28% and 30%, respectively. Twenty-seven patients required further therapy following BV. At the time of the analysis, 12 patients (21%) were alive. Five patients (9%) had long-term remission after achieving CR with BV monotherapy, with a median PFS of 76 months. Three of them (5%) did not receive any other treatment following BV and their median PFS was 75 months. Our long-term results showed that a small subset of patients with relapsed/refractory cHL may benefit from and even be cured with BV monotherapy.
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    Patterns of hydroxyurea prescription and use in routine clinical management of polycythemia vera: A multicenter chart review study
    (Galenos Yayincilik, 2020-01-01) Büyükaşık, Yahya; Turgut, Mehmet; Saydam, Güray; Yavuz, Selim; Ünal, Ali; Ar, Muhlis Cem; Ayyıldız, Orhan; Altuntaş, Fevzi; Okay, Mufide; Çiftçiler, Rafiye; Meletli, Özgür; Soyer, Nur; Mastanzade, Metban; Güven, Zeynep; Soysal, Teoman; Karakuş, Abdullah; Yiğenoğlu, Tuğce Nur; Uçar, Barış; Gökçen, Ece; Tuğlular, Tülin; Ali, Rıdvan; ALİ, RIDVAN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Hematoloji Anabilim Dalı.; GXD-8209-2022
    Objective: This study aimed to evaluate real-life data on patterns of hydroxyurea prescription/use in polycythemia vera (PV).Materials and Methods: This retrospective chart review study included PV patients who had received hydroxyurea therapy for at least 2 months after PV diagnosis. Data were collected from 10 representative academic medical centers.Results: Of 657 patients, 50.9% were in the high-risk group (age 60 years and/or history of thromboembolic event). The median duration of hydroxyurea therapy was 43.40 months for all patients; 70.2% of the patients had ongoing hydroxyurea therapy at last followup. Hydroxyurea was discontinued in 22.4% of the patients; the most common reason was death (38.5%). The predicted time until hydroxyurea discontinuation was 187.8 months (standard error: +/- 21.7) for all patients. This duration was shorter in females (140.3 +/- 37.7 vs. 187.8 +/- 29.7) (p=0.08). This trend was also observed in surviving patients aged >= 50 years at hydroxyurea initiation (122.2 +/- 12.4 vs. 187.8 +/- 30.7, p=0.03). Among the patients who were still on hydroxyurea therapy, 40.3% had a hematocrit concentration of >= 45% at their last followup visit, and the rate of patients with at least one elevated blood cell count was 67.8%.Conclusion: Hydroxyurea prescription patterns and treatment aims are frequently not in accordance with the guideline recommendations. Its discontinuation rate is higher in females.