scholarly journals Cerebral Invasive Aspergillosis in a Case of Chronic Lymphocytic Leukemia with Bruton Tyrosine Kinase Inhibitor

2021 ◽  
Vol 28 (1) ◽  
pp. 837-841
Author(s):  
Omar Alkharabsheh ◽  
Alhareth Alsayed ◽  
Diana M. Morlote ◽  
Amitkumar Mehta
Keyword(s):  
Chronic Lymphocytic Leukemia ◽  
Tyrosine Kinase ◽  
Kinase Inhibitor ◽  
Fungal Infections ◽  
Case Reports ◽  
Invasive Fungal Infections ◽  
Lymphocytic Leukemia ◽  
High Morbidity ◽  
Bruton Tyrosine Kinase ◽  
Btk Inhibitors

Bruton tyrosine kinase (BTK) inhibitors have become an important therapy for untreated and previously treated patients with chronic lymphocytic leukemia (CLL). Despite improved outcomes, rare adverse events, such as invasive fungal infections, have been reported with the use of first-generation BTK inhibitors. Invasive fungal infections carry a high morbidity and mortality risk. There have been several case reports describing the association between aspergillosis and ibrutinib treatment, but none with acalabrutinib, to our knowledge. In this case report, we describe a patient with CLL who developed an intracranial Aspergillus fumigatus infection while receiving acalabrutinib.

scholarly journals Comparison of Acalabrutinib, A Selective Bruton Tyrosine Kinase Inhibitor, with Ibrutinib in Chronic Lymphocytic Leukemia Cells

2016 ◽  
Vol 23 (14) ◽  
pp. 3734-3743 ◽  
Author(s):  
Viralkumar Patel ◽  
Kumudha Balakrishnan ◽  
Elena Bibikova ◽  
Mary Ayres ◽  
Michael J. Keating ◽  
...  
Keyword(s):  
Chronic Lymphocytic Leukemia ◽  
Tyrosine Kinase ◽  
Tyrosine Kinase Inhibitor ◽  
Kinase Inhibitor ◽  
Lymphocytic Leukemia ◽  
Leukemia Cells ◽  
Bruton Tyrosine Kinase

scholarly journals Acalabrutinib in the treatment of chronic lymphocytic leukemia: a review of recent evidence

2021 ◽  
Vol 23 (2) ◽  
pp. 332-338
Author(s):  
Andrei A. Petrenko ◽  
Maria I. Kislova ◽  
Elena A. Dmitrieva ◽  
Eugene A. Nikitin
Keyword(s):  
Chronic Lymphocytic Leukemia ◽  
Tyrosine Kinase ◽  
Tyrosine Kinase Inhibitor ◽  
Kinase Inhibitor ◽  
Real Life ◽  
Cell Receptor ◽  
Lymphocytic Leukemia ◽  
Phase Iii ◽  
Multicenter Studies ◽  
Bruton Tyrosine Kinase

Chronic lymphocytic leukemia (CLL) treatment landscape has changed dramatically with the recently developed drugs targeting the B-cell receptor (BCR) signalling pathway. Acalabrutinib, a second generation Bruton tyrosine kinase inhibitor, was approved in 2020 in Russia for the treatment of patients with CLL. Acalabrutinib was developed as a more selective Bruton tyrosine kinase inhibitor then ibrutinib. This drug is aimed at reducing the adverse events that limit the use of ibrutinib, such as atrial fibrillation and bleeding. Phase I/II multicenter studies have demonstrated the efficacy and safety of acalabrutinib monotherapy in untreated CLL patients and in patients with relapsed/refractory CLL and ibrutinib intolerance. Phase III trials, ASCEND and ELEVATE-TN, compared acalabrutinib monotherapy and a combination of acalabrutinib and obinutuzumab versus standard therapies and demonstrated improved efficacy and tolerability of acalabrutinib. A phase III trial comparing acalabrutinib and ibrutinib monotherapy (ELEVATE-RR) is ongoing. The results of this study along with real-life clinical data could determine the place of acalabrutinib in CLL treatment.

32. Chronic lymphocytic leukemia patients who develop resistance to Bruton Tyrosine Kinase (BTK) inhibitors demonstrate heterogeneous patterns of clonal evolution

2018 ◽  
Vol 226-227 ◽  
pp. 48
Author(s):  
Rashmi Kanagal-Shamanna ◽  
Preetesh Jain ◽  
Keyur Patel ◽  
Carlos Bueso-Ramos ◽  
Rajyalakshmi Luthra ◽  
...  
Keyword(s):  
Chronic Lymphocytic Leukemia ◽  
Tyrosine Kinase ◽  
Clonal Evolution ◽  
Lymphocytic Leukemia ◽  
Bruton Tyrosine Kinase ◽  
Btk Inhibitors

scholarly journals What Influences the Choice of Ibrutinib–Rituximab vs Classic Chemoimmunotherapy for Chronic Lymphocytic Leukemia?

2020 ◽  
Vol 29 ◽  
pp. 096368972095020
Author(s):  
Sara Bravaccini ◽  
Giovanni Martinelli ◽  
Claudio Cerchione
Keyword(s):  
Chronic Lymphocytic Leukemia ◽  
Tyrosine Kinase ◽  
Tyrosine Kinase Inhibitor ◽  
Kinase Inhibitor ◽  
Lymphocytic Leukemia ◽  
Western World ◽  
Phosphatidylinositol 3 Kinase ◽  
Fda Approval ◽  
Bruton Tyrosine Kinase ◽  
Treatment Naïve

Chronic lymphocytic leukemia (CLL), with an incidence rate between 4 and 6 cases per 100,000 persons per year, is considered the most prevalent leukemia in the western world. Chemoimmunotherapy (such as fludarabine, cyclophosphamide, and rituximab), bendamustine plus rituximab, and, more recently, novel agents such as ibrutinib (Bruton tyrosine kinase inhibitor), idelalisib (phosphatidylinositol-3-kinase δ inhibitor), and venetoclax (BCL-2 inhibitor) have changed the management of CLL. Shanafelt and colleagues compared the efficacy of ibrutinib–rituximab with that of standard chemoimmunotherapy in patients with treatment-naïve CLL. They did not, however, mention that the therapy varies on the basis of where patients live and, given that local guidelines not immediately reflect US Food and Drug Administration (FDA) updates, discrepancies in treatment occur. Important CLL goals are the availability of rapidly reproducible tests, standardization of national and international guidelines, and FDA approval-based treatment reimbursement.

scholarly journals Ibrutinib Treatment of a Patient with Relapsing Chronic Lymphocytic Leukemia and Sustained Remission of Richter Syndrome

2017 ◽  
Vol 103 (1_suppl) ◽  
pp. S37-S40 ◽  
Author(s):  
Elisa Albi ◽  
Stefano Baldoni ◽  
Patrizia Aureli ◽  
Erica Dorillo ◽  
Beatrice Del Papa ◽  
...  
Keyword(s):  
Chronic Lymphocytic Leukemia ◽  
Kinase Inhibitor ◽  
Rare Event ◽  
Lymphocytic Leukemia ◽  
Sustained Remission ◽  
Richter Syndrome ◽  
Positron Emission ◽  
Bruton Tyrosine Kinase ◽  
Tomography Scan

Purpose Richter syndrome (RS) is a rare event in chronic lymphocytic leukemia (CLL) that is influenced by biological factors and prior CLL treatments. Ibrutinib is a Bruton tyrosine kinase inhibitor that has shown remarkable efficacy in CLL; however, little is known about its relationship to RS. We report a case of ibrutinib efficacy against CLL in a patient with prolonged remission of RS. Methods The patient was diagnosed with CLL in 2003. Biological findings at onset included absent ZAP70 expression, mutated IGVH, and NOTCH1 mutation. He was treated with FCR with partial response. In 2013, he progressed to RS, not clonally related to the underlying CLL. The patient was treated with anthracycline- and platinum-based regimens, obtaining a complete remission. After 3 years, he presented a CLL progression with worsening lymphocytosis, anemia, thrombocytopenia, increased splenomegaly, and lymphadenopathies. Positron emission tomography-computed tomography scan excluded pathologic uptake. Thus, he was started on ibrutinib. Results At 12 months’ follow-up, we observed white blood cell normalization, increased hemoglobin and platelet levels, disappearance of lymphadenopathy, and spleen size reduction. Therapy was well-tolerated with no evidence of RS. Conclusion This case demonstrates sustained RS remission in a patient with CLL under ibrutinib therapy, thus improving our knowledge on the use of this new drug in CLL and beyond.

scholarly journals Response of renal cell carcinoma to ibrutinib, a bruton tyrosine kinase inhibitor, in a patient treated for chronic lymphocytic leukemia

2017 ◽  
Vol 11 (5) ◽  
pp. 237 ◽  
Author(s):  
Gregory W. Hosier ◽  
Naji J. Touma
Keyword(s):  
Renal Cell Carcinoma ◽  
Tyrosine Kinase ◽  
Cell Carcinoma ◽  
Renal Cell ◽  
Kinase Inhibitor ◽  
Mammalian Target Of Rapamycin ◽  
Interleukin 2 ◽  
Lymphocytic Leukemia ◽  
Bruton Tyrosine Kinase ◽  
Btk Inhibitor

Ibrutinib is a bruton tyrosine kinase (BTK) inhibitor approved for B cell malignancies. Although there are currently two clinical trials evaluating ibrutinib in combination with nivolumab (programmed cell death protein 1, PD-1, inhibitor) or everolimus (mammalian target of rapamycin, mTOR, inhibitor) for metastatic renal cell carcinoma (RCC), there are no reports of RCC (metastatic or non-metastatic) showing response to a BTK inhibitor in humans. Here we report a 22-month clinical response of biopsy-proven RCC to ibrutinib. This is unexpected, given that BTK is not wellimplicated in RCC pathophysiology. We explore a possible mechanism for the response of RCC to ibrutinib through inhibition of interleukin-2-inducible T-cell kinase (ITK) leading to enhanced antitumour immune responses.

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