Immune dysregulation in chronic lymphocytic leukemia (CLL) contributes to a high rate of infections and morbidity. The Bruton tyrosine kinase (BTK) inhibitors ibrutinib and acalabrutinib mark major breakthroughs in the treatment of CLL, however many patients require long-term therapy with these agents. Despite receiving effective therapy for CLL, patients on BTK inhibitors remain immunocompromised and at risk of infectious complications. We previously reported that treatment of CLL with ibrutinib leads to partial reconstitution of humoral immunity and fewer infections during the first two years of therapy. It is currently unclear whether the positive effects of ibrutinib on the immune system are sustained during long-term therapy. Acalabrutinib is a newer, more selective BTK inhibitor than ibrutinib; however a detailed evaluation of the immunologic impact of acalabrutinib therapy is lacking. Herein, utilizing two independent trials, we assessed the immunological effects and infectious risk of ibrutinib and acalabrutinib treatment in patients with CLL.
|Original language||English (US)|
|Number of pages||8|
|Journal||Leukemia and Lymphoma|
|State||Published - Aug 23 2020|
Bibliographical noteFunding Information:
The authors are supported by the Intramural Research Program of the NHLBI, NIH. Pharmacyclics LLC, an Abbvie company and Acerta Pharma, a member of the Astra-Zeneca group provided study drug and research support. The authors thank our patients for participating in these studies, Pharmacyclics LLC, an AbbVie Company, and Acerta for providing ibrutinib and acalabrutinib respectively, research support, and comments on the manuscript.
Adrian Wiestner received research support from Pharmacyclics LLC, an Abbvie company and Acerta Pharma, a member of the Astra-Zeneca group, Merck, Nurix, and Genmab. Inhye Ahn received research support from the American Society of Hematology Scholar Award. The remaining authors report no conflicts of interest.
©, This work was authored as part of the Contributor's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
- BTK inhibitor
- immune system