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  • Küçük Resim
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    Clinical characteristics and outcomes of COVID-19 in Turkish patients with hematological malignancies
    (NLM (Medline), 2022) Civriz Bozdağ, Sinem; Cengiz Seval, Güldane; Yönal Hindilerden, İpek; Hindilerden, Fehmi; Andıç, Neslihan; Baydar, Mustafa; Aydın Kanyar, Lale; Toprak, Selami Koçak; Göksoy, Hasan Sami; Balık Aydın, Berrin; Demirci, Ufuk; Can, Ferda; Özkocaman, Vildan; Gündüz, Eren; Güven, Zeynep Tuğba; Özkurt, Zübeyde Nur; Demircioğlu, Sinan; Beksaç, Meral; İnce, İdris; Yılmaz, Umut; Eroğlu Küçükdiler, Hilal; Abishov, Elgün; Yavuz, Boran; Ataş, Ünal; Mutlu, Yaşa Gül; Baş, Volkan; Özkalemkaş, Fahir; Üsküdar Teke, Hava; Gürsoy, Vildan; Çelik, Serhat; Çiftçiler, Rafiye; Yağcı, Münci; Topçuoğlu, Pervin; Çeneli, Özcan; Abbasov, Hamza; Selim, Cem; Ar, Muhlis Cem; Yücel, Orhan Kemal; Sadri, Sevil; Albayrak, Canan; Demir, Ahmet Muzaffer; Güler, Nil; Keklik, Muzaffer; Terzi, Hatice; Doğan, Ali; Yegin, Zeynep Arzu; Kurt Yüksel, Meltem; Sadri, Soğol; Yavaşoğlu, İrfan; Beköz, Hüseyin Saffet; Aksu, Tekin; Maral, Senem; Erol, Veysel; Kaynar, Leylagül; İlhan, Osman; Bolaman, Ali Zahit; Sevindik, Ömür Gökmen; Akyay, Arzu; Özcan, Muhit; Gürman, Günhan; Ünal, Şule; Yavuz, Yasemin; Diz Küçükkaya, Reyhan; Özsan, Güner Hayri
    Objective: Patients with solid malignancies are more vulnerable to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection than the healthy population. The outcome of SARS-CoV-2 infection in highly immunosuppressed populations, such as in patients with hematological malignancies, is a point of interest. We aimed to analyze the symptoms, complications, intensive care unit admissions, and mortality rates of patients with hematological malignancies infected with SARS-CoV-2 in Turkey. Materials and Methods: In this multicenter study, we included 340 adult and pediatric patients diagnosed with SARS-CoV-2 from March to November 2020. Diagnosis and status of primary disease, treatment schedules for hematological malignancies, time from last treatment, life expectancy related to the hematological disease, and comorbidities were recorded, together with data regarding symptoms, treatment, and outcome of SARS-CoV-2 infection. Results: Forty four patients were asymptomatic at diagnosis of SARS-CoV- 2 infection. Among symptomatic patients, fever, cough, and dyspnea were observed in 62.6%, 48.8%, and 41.8%, respectively. Sixty-nine (20%) patients had mild SARS-CoV-2 disease, whereas moderate, severe, and critical disease was reported in 101 (29%), 71 (20%), and 55 (16%) patients, respectively. Of the entire cohort, 251 (73.8%) patients were hospitalized for SARS-CoV-2. Mortality related to SARS-CoV-2 infection was 26.5% in the entire cohort; this comprised 4.4% of those patients with mild disease, 12.4% of those with moderate disease, and 83% of those with severe or critical disease. Active hematological disease, lower life expectancy related to primary hematological disease, neutropenia at diagnosis of SARS-CoV-2, ICU admission, and first-line therapy used for coronavirus disease-2019 treatment were found to be related to higher mortality rates. Treatments with hydroxychloroquine alone or in combination with azithromycin were associated with a higher rate of mortality in comparison to favipiravir use. Conclusion: Patients with hematological malignancy infected with SARS-CoV-2 have an increased risk of severe disease and mortality.
  • Küçük Resim
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    Single agent vemurafenib or rituximab-vemurafenib combination for the treatment of relapsed/refractory hairy cell leukemia, a multicenter experience
    (2024) Yiğit Kaya, Süreyya; Mutlu, Yaşa Gül; Malkan, Ümit Yavuz; Mehtap, Özgür; Keklik Karadağ, Fatma; Korkmaz, Gülten; Elverdi, Tuğrul; Saydam, Güray; Özet, Gülsüm; Ar, Muhlis Cem; Melek, Elif; Maral, Senem; Kaynar, Leylagül; Sevindik, Ömür Gökmen
    Background: Hairy cell leukemia (HCL) is a rare mature B-cell malignancy that is primarily treated with purine analogues. However, relapse remains a significant challenge, prompting the search for alternative therapies. The BRAF V600E mutation prevalent in HCL patients provides a target for treatment with vemurafenib. Patients and methods: This multicenter retrospective study included nine patients with relapsed/refractory (R/R) HCL from six different centers. Patient data included demographics, prior treatments, clinical outcomes, and adverse events. Results: Patients received different treatment regimens between centers, including vemurafenib alone or in combination with rituximab. Despite the differences in protocols, all patients achieved at least a partial response, with seven patients achieving a complete response. Adverse events were generally mild with manageable side effects. The absence of myelotoxic effects and manageable side effects make BRAF inhibitors attractive, especially for patients ineligible for purine analogues or those with severe neutropenia. Conclusion: Single agent vemurafenib or in combination with rituximab appears to be a promising therapeutic option for R/R HCL. Further research is needed to establish standardized treatment protocols and to investigate long-term outcomes.