Real-world efficacy and safety of bendamustine with or without rituximab in treatment-naïve older patients with chronic lymphocytic leukemia: Retrospective analysis by age group from a German registry

2012 ◽  
Vol 3 ◽  
pp. S65
Author(s):  
G. Günther ◽  
S. Bartels ◽  
H.W. Tessen ◽  
J.A. Sterchele⁎
Blood ◽  
1999 ◽  
Vol 94 (2) ◽  
pp. 448-454 ◽  
Author(s):  
Francesca R. Mauro ◽  
Robert Foa ◽  
Diana Giannarelli ◽  
Iole Cordone ◽  
Sabrina Crescenzi ◽  
...  

Abstract A retrospective analysis on chronic lymphocytic leukemia (CLL) patients ≤55 years observed at a single institution was performed with the purpose of characterizing the clinical features and outcome of young CLL and of identifying patients with different prognostic features. Over the period from 1984 to 1994, 1,011 CLL patients (204 [20%] ≤55 years of age and 807 [80%] >55 years of age) were observed. At diagnosis, younger and older patients displayed a similar distribution of clinical features, except for a significantly higher male/female ratio in younger patients (2.85 v 1.29;P < .0001). Both groups showed an elevated rate of second primary cancers (8.3% v 10.7%), whereas the occurrence of Richter’s syndrome was significantly higher in younger patients (5.9% v 1.2%; P < .00001). Younger and older patients showed a similar overall median survival probability (10 years) but were characterized by a different distribution of causes of deaths: CLL unrelated deaths and second primary malignancies predominated in the older age group, whereas the direct effects of leukemia were prevalent in the younger age group. Although younger and older patients displayed a similar survival, the evaluation of the relative survival rates showed that the disease had a greater adverse effect on the expected survival probability of the younger population. Multivariate analysis showed that for young CLL patients only dynamic parameters, such as lymphocyte doubling time and other signs of active disease, were the independent factors that significantly influenced survival probability (P = .00001). A prolonged clinico-hematologic follow-up allowed us to identify two subsets of young CLL patients with a different prognostic outcome: a group of patients (40%) with long-lasting stable disease without treatment and an actuarial survival probability of 94% at 12 years from diagnosis and another group (60%) with progressive disease and a median survival probability of 5 years after therapy. For the latter patients, the therapeutic effect of innovative therapies with curative intents needs to be investigated in prospective, comparative clinical trials.


2020 ◽  
Vol 27 (2) ◽  
Author(s):  
Versha Banerji ◽  
Peter Anglin ◽  
Anna Christofides ◽  
Sarah Doucette ◽  
Pierre Laneuville

The 2019 annual meeting of the American Society of Hematology took place 7–10 December in Orlando, Florida. At the meeting, results from key studies in treatment-naïve chronic lymphocytic leukemia were presented. Of those studies, phase III oral presentations focused on the efficacy and safety of therapy with Bruton tyrosine kinase (BTK) and B-cell lymphoma-2 (BCL-2) inhibitors. One presentation reported updated results of the ECOG 1912 trial comparing the efficacy and safety of ibrutinib plus rituximab to fludarabine, cyclophosphamide, rituximab in patients with CLL younger than 70 years of age. A second presentation reported interim results of the ELEVATE-TN trial, which is investigating the efficacy and safety of acalabrutinib plus obinutuzumab or acalabrutinib monotherapy versus chlorambucil plus obinutuzumab. A third presentation reported on the single-agent zanubrutinib arm of the SEQUOIA trial in patients with del(17p). The final presentation reported a data update from the CLL14 trial, which is evaluating fixed-duration venetoclax and obinutuzumab versus chlorambucil and obinutuzumab, including the association of minimal residual disease status on progression-free survival. Our meeting report describes the foregoing studies and presents interviews with investigators and commentaries by Canadian hematologists about potential effects on Canadian practice.


2019 ◽  
Vol 98 (12) ◽  
pp. 2749-2760 ◽  
Author(s):  
Gilles Salles ◽  
Emmanuel Bachy ◽  
Lukas Smolej ◽  
Martin Simkovic ◽  
Lucile Baseggio ◽  
...  

AbstractAfter analyzing treatment patterns in chronic lymphocytic leukemia (CLL) (objective 1), we investigated the relative effectiveness of ibrutinib versus other commonly used treatments (objective 2) in patients with treatment-naïve and relapsed/refractory CLL, comparing patient-level data from two randomized registration trials with two real-world databases. Hazard ratios (HR) and 95% confidence intervals (CIs) were estimated using a multivariate Cox proportional hazards model, adjusted for differences in baseline characteristics. Rituximab-containing regimens were often prescribed in clinical practice. The most frequently prescribed regimens were fludarabine + cyclophosphamide + rituximab (FCR, 29.3%), bendamustine + rituximab (BR, 17.7%), and other rituximab-containing regimens (22.0%) in the treatment-naïve setting (n = 604), other non-FCR/BR rituximab-containing regimens (38.7%) and non-rituximab–containing regimens (28.5%) in the relapsed/refractory setting (n = 945). Adjusted HRs (95% CI) for progression-free survival (PFS) and overall survival (OS), respectively, with ibrutinib versus real-world regimens were 0.23 (0.14–0.37; p < 0.0001) and 0.40 (0.22–0.76; p = 0.0048) in the treatment-naïve setting, and 0.21 (0.16–0.27; p < 0.0001) and 0.29 (0.21–0.41; p < 0.0001) in the relapsed/refractory setting. When comparing real-world use of ibrutinib (n = 53) versus other real-world regimens in relapsed/refractory CLL (objective 3), adjusted HRs (95% CI) were 0.37 (0.22–0.63; p = 0.0003) for PFS and 0.53 (0.27–1.03; p < 0.0624) for OS. This adjusted analysis, based on nonrandomized patient data, suggests ibrutinib to be more effective than other commonly used regimens for CLL.


Blood ◽  
2021 ◽  
Author(s):  
John C. Byrd ◽  
Jennifer A. Woyach ◽  
Richard R. Furman ◽  
Peter Martin ◽  
Susan O'Brien ◽  
...  

Acalabrutinib has demonstrated significant efficacy and safety in relapsed chronic lymphocytic leukemia (CLL). The efficacy and safety of acalabrutinib monotherapy was evaluated in a treatment-naïve CLL cohort of a single-arm phase 1/2 clinical trial (ACE-CL-001). Adults were eligible for enrollment if chemotherapy was declined or deemed inappropriate due to comorbidities (N = 99). Patient demographics included a median age of 64 years and 47% with Rai stage III/IV disease. Acalabrutinib was administered orally either 200 mg once daily (QD) or 100 mg twice daily (BID) until progression or intolerance. A total of 99 patients were treated; 57 (62%) had unmutated immunoglobulin heavy-chain variable gene (IGHV), and 12 (18%) had TP53 aberrations. After a median follow-up of 53 months, 85 patients remain on treatment; 14 patients discontinued treatment, mostly due to adverse events (AEs) (n = 6) or disease progression (n = 3). Overall response rate was 97% (90% partial response; 7% complete response), with similar outcomes among all prognostic subgroups. Due to improved trough BTK occupancy with BID dosing, all patients were transitioned to 100 mg BID. The median duration of response (DOR) was not reached; the 48-month DOR rate was 97% (95% confidence interval [CI], 90%, 99%). Serious AEs were reported in 38 patients (38%). AEs required discontinuation in 6 patients (6%) due to second primary cancers (n = 4) and infection (n = 2). Grade ≥3 events of special interest included infection (15%), hypertension (11%), bleeding events (3%), and atrial fibrillation (2%). The durable efficacy and long-term safety of acalabrutinib in this trial provide support for its use in clinical management of symptomatic, untreated CLL patients.


2013 ◽  
Vol 31 (4) ◽  
pp. 440-447 ◽  
Author(s):  
Jennifer A. Woyach ◽  
Amy S. Ruppert ◽  
Kanti Rai ◽  
Thomas S. Lin ◽  
Susan Geyer ◽  
...  

Purpose Chronic lymphocytic leukemia (CLL) is a disease of the elderly, yet few clinical trials include a significant number of older patients, and outcomes after specific therapies can be different depending on age. Patients and Methods We examined patients enrolled onto successive first-line CALGB CLL trials to determine whether efficacy of regimens varied by age, focusing on ideal chemotherapy choice and benefit of immunotherapy addition to chemotherapy in older patients. Regimens included chlorambucil, fludarabine, fludarabine plus rituximab (FR), fludarabine with consolidation alemtuzumab, and FR with consolidation alemtuzumab. Results A total of 663 patients were evaluated for response, progression-free survival (PFS), and overall survival (OS) by age group. Interaction effects of fludarabine versus chlorambucil by age group (PFS, P = .046; OS, P = .006) showed that among patients younger than 70 years, PFS and OS was improved with fludarabine over chlorambucil (PFS: hazard ratio [HR] = 0.6, 95% CI, 0.5 to 0.8; OS: HR = 0.7, 95% CI, 0.5 to 0.9), but not in older adults (PFS, HR = 1.0, 95% CI, 0.6 to 1.7; OS: HR = 1.5, 95% CI, 0.9 to 2.3). In contrast, FR improved outcomes relative to fludarabine, irrespective of age (PFS: HR = 0.6, 95% CI, 0.4 to 0.7; OS: HR = 0.7, 95% CI, 0.5 to 0.9). Alemtuzumab consolidation did not provide benefit over similar regimens without alemtuzumab (P > .20), irrespective of age. Conclusion These data support the use of chlorambucil as an acceptable treatment for many older patients with CLL and suggest rituximab is beneficial regardless of age. These findings bear relevance to both routine care of CLL patients 70 years and older and also future clinical trials in this population.


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