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Cited by 473

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Final analysis from RESONATE: Up to six years of follow‐up on ibrutinib in patients with previously treated chronic lymphocytic leukemia or small lymphocytic lymphoma

Open access
Munir, Talha, Brown, Jennifer R., O'Brien, Susan, Barrientos, Jacqueline C., Barr, Paul M., Reddy, Nishitha M., Coutre, Steven, Tam, Constantine S., Mulligan, Stephen P., Jaeger, Ulrich, Kipps, Thomas J., Moreno, Carol, Montillo, Marco, Burger, Jan A., Byrd, John C., Hillmen, Peter, Dai, Sandra, Szoke, Anita, Dean, James P., Woyach, Jennifer A.·2019·American Journal of Hematology

Abstract

Ibrutinib, a once‐daily oral inhibitor of Bruton's tyrosine kinase, is approved in the United States and Europe for treatment of patients with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL). The phase 3 RESONATE study showed improved efficacy of single‐agent ibrutinib over ofatumumab in patients with relapsed/refractory CLL/SLL, including those with high‐risk features. Here we report the final analysis from RESONATE with median follow‐up on study of 65.3 months (range, 0.3‐71.6) in the ibrutinib arm. Median progression‐free survival (PFS) remained significantly longer for patients randomized to ibrutinib vs ofatumumab (44.1 vs 8.1 months; hazard ratio [HR]: 0.148; 95% confidence interval [CI]: 0.113‐0.196; P ˂.001). The PFS benefit with ibrutinib vs ofatumumab was preserved in the genomic high‐risk population with del(17p), TP53 mutation, del(11q), and/or unmutated IGHV status (median PFS 44.1 vs 8.0 months; HR: 0.110; 95% CI: 0.080‐0.152), which represented 82% of patients. Overall response rate with ibrutinib was 91% (complete response/complete response with incomplete bone marrow recovery, 11%). Overall survival, censored for crossover, was better with ibrutinib than ofatumumab (HR: 0.639; 95% CI: 0.418‐0.975). With up to 71 months (median 41 months) of ibrutinib therapy, the safety profile remained consistent with prior reports; cumulatively, all‐grade (grade ≥3) hypertension and atrial fibrillation occurred in 21% (9%) and 12% (6%) of patients, respectively. Only 16% discontinued ibrutinib because of adverse events (AEs). These long‐term results confirm the robust efficacy of ibrutinib in relapsed/refractory CLL/SLL irrespective of high‐risk clinical or genomic features, with no unexpected AEs. This trial is registered at www.clinicaltrials.gov (NCT01578707).

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Metadata

Authors
Munir, T., Brown, J. R., O'Brien, S., Barrientos, J. C., Barr, P. M., Reddy, N. M., Coutre, S., Tam, C. S., Mulligan, S. P., Jaeger, U., Kipps, T. J., Moreno, C., Montillo, M., Burger, J. A., Byrd, J. C., Hillmen, P., Dai, S., Szoke, A., Dean, J. P., & Woyach, J. A.
Venue
American Journal of Hematology
Publisher
Wiley
Published
2019-10-13
Volume
94
Issue
12
Pages
1353-1363
ISSN
  • 0361-8609 (ISSN-L)
  • 1096-8652
OpenAlex
W2973195462
Cited by
473
References
33
FWCI
24.54
Type
journal article
Language
en
Open access
hybrid

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Munir, T., Brown, J. R., O'Brien, S., Barrientos, J. C., Barr, P. M., Reddy, N. M., Coutre, S., Tam, C. S., Mulligan, S. P., Jaeger, U., Kipps, T. J., Moreno, C., Montillo, M., Burger, J. A., Byrd, J. C., Hillmen, P., Dai, S., Szoke, A., Dean, J. P., & Woyach, J. A. (2019). Final analysis from RESONATE: Up to six years of follow‐up on ibrutinib in patients with previously treated chronic lymphocytic leukemia or small lymphocytic lymphoma. American Journal of Hematology. https://doi.org/10.1002/ajh.25638

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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