Browsing by Subject "Adenine"

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    Efficacy and Safety of Ibrutinib Therapy in Patients with Chronic Lymphocytic Leukemia: Retrospective Analysis of Real-Life Data; [Kronik Lenfositik Lösemili Hastalarda İbrutinib Tedavisinin Etkililiği ve Güvenilirliği: Gerçek Hayat Verilerinin Retrospektif Analizi]
    (Turkish Society of Hematology, 2021) Tombak A.; Tanrıkulu F.P.; Durusoy S.S.; Dinçyürek H.D.; Kaya E.; Ümit E.G.; Yavaşoğlu İ.; Mehtap Ö.; Deveci B.; Özcan M.A.; Terzi H.; Okay M.; Sayınalp N.; Yılmaz M.; Okan V.; Kızıklı A.; Özcan Ö.; Çetin G.; Demircioğlu S.; Aydoğdu İ.; Saydam G.; Davulcu E.A.; İlhan G.; Uçar M.A.; Özet G.; Akpınar S.; Turgut B.; Berber İ.; Kurtoğlu E.; Sönmez M.; Batur D.S.; Yıldırım R.; Özkocamaz V.; Güneş A.K.; Sahip B.; Ertop Ş.; Akay O.M.; Baştürk A.; Doğu M.H.; Akdeniz A.; Ünal A.; Seyhanlı A.; Gürkan E.; Çekdemir D.; Ferhanoğlu B.
    Objective: This study aimed to retrospectively evaluate the efficacy, safety, and survival outcome of single-agent ibrutinib therapy in chronic lymphocytic leukemia patients. Materials and Methods: A total of 136 patients (mean age ± standard deviation: 64.6±10.3 years, 66.9% males) who had received at least one dose of ibrutinib were included in this retrospective multicenter, noninterventional hospital-registry study conducted at 33 centers across Turkey. Data on patient demographics, baseline characteristics, laboratory findings, and leukemia-cell cytogenetics were retrieved. Treatment response, survival outcome including overall survival (OS) and progression-free survival (PFS), and safety data were analyzed. Results: Overall, 36.7% of patients were categorized as Eastern Cooperative Oncology Group (ECOG) class 2-3, while 44.9% were in Rai stage 4. Fluorescence in situ hybridization revealed the presence of del(17p) in 39.8% of the patients. Patients received a median of 2.0 (range: 0-7) lines of pre-ibrutinib therapy. Median duration of therapy was 8.8 months (range: 0.4-58.0 months). The 1-year PFS and OS rates were 82.2% and 84.6%, respectively, while median PFS time was 30.0 (standard error, 95% confidence interval: 5.1, 20.0-40.0) months and median OS time was 37.9 (3.2, 31.5-44.2) months. Treatment response (complete or partial response), PFS time, and OS time were better with 0-2 lines versus 3-7 lines of prior therapy (p<0.001, p=0.001, and p<0.001, respectively), with ECOG class 0-1 versus class 2-3 (p=0.006, p=0.011, and p=0.001, respectively), and with Rai stage 0-2 versus 3-4 (p=0.002, p=0.001, and p=0.002, respectively). No significant difference was noted in treatment response rates or survival outcome with respect to the presence of comorbidity, bulky disease, or del(17p). While 176 adverse events (AEs) were reported in 74 (54.4%) patients, 46 of those 176 AEs were grade 3-4, including pneumonia (n=12), neutropenia (n=11), anemia (n=5), thrombocytopenia (n=5), and fever (n=5). Conclusion: This real-life analysis confirms the favorable efficacy and safety profile of long-term ibrutinib treatment while emphasizing the potential adverse impacts of poorer ECOG performance status, heavy treatment prior to ibrutinib, and advanced Rai stage on patient compliance, treatment response, and survival outcomes. © 2021 by Turkish Society of Hematology Turkish Journal of Hematology, Published by Galenos Publishing House.
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    The Real-World Experience With Single Agent Ibrutinib in Relapsed/Refractory CLL
    (Elsevier Inc., 2022) Akpinar S.; Dogu M.H.; Celik S.; Ekinci O.; Hindilerden I.Y.; Dal M.S.; Davulcu E.A.; Tekinalp A.; Hindilerden F.; Ozcan B.G.; Hacibekiroglu T.; Erkurt M.A.; Bagci M.; Namdaroglu S.; Korkmaz G.; Bilgir O.; Cagliyan G.A.; Ozturk H.B.A.; Serin I.; Tiryaki T.O.; Ozatli D.; Korkmaz S.; Ulas T.; Eser B.; Turgut B.; Altuntas F.
    Introduction/Background: The emergence of novel agents targeting the B-cell receptor pathway and BCL-2 has significantly changed the therapeutic landscape of CLL. We evaluated the safety and efficacy of single-agent ibrutinib in relapsed/refractory CLL in real-world settings. Patients/Methods: A total of 200 relapsed/refractory CLL patients with a median age of 68 were included in this retrospective, multicenter, non-interventional study. Data of the study were captured from the patient charts of the participating centers. Results: The median for lines of previous chemotherapy was 2 (1-6); 62 (31.8%) patients had del17p and/or p53 mutations (del17p+/p53mut). Of the study group, 146 (75%) patients achieved at least PR, while 16 (8.7%) patients discontinued ibrutinib due to TEA. The most common drug-related adverse events were neutropenia (n: 31; 17.4%) and thrombocytopenia (n: 40; 22.3%), which were ≥ grade 3 in 9 (5%) and 5 (3.9%) patients, respectively. Pneumonia (n: 42; 23.7%) was the most common nonhematologic TEA. Atrial fibrillation (n: 5; 2.8%) and bleeding (n: 11; 6.3%) were relatively rare during the study period. Within a median follow-up period of 17 (1-74) months, 42 (21%) patients died. The estimated median OS of the study cohort was 52 months. Only the response to ibrutinib (CR/PR vs. SD/PD) was significantly associated with OS. Conclusion: Our results indicate good safety and efficacy for single-agent ibrutinib in R/R CLL in daily practice. © 2021 Elsevier Inc.