CLL With Akiva Diamond, MD

Oncology / Hematology

Dr. Diamond is a lymphoma specialist, a malignant hematologist, and an assistant professor of medicine at Baylor College of Medicine and the Dan L. Duncan Comprehensive Cancer Center in Houston, Texas.


Low Rate of Ventricular Arrhythmias With Acalabrutinib: CLL at ASH 2023

Hi all,

As day 3 of the 65th ASH Annual Meeting and Exposition unfolds, I’m excited to share some key chronic lymphocytic leukemia (CLL) abstracts. Today’s spotlight is on acalabrutinib’s cardiac safety. The study shows a low risk of ventricular arrhythmias and sudden death, echoing its safety alongside increasing BTK inhibitor use.

Other notable abstracts:

  • TL-895 in CLL/SLL: Rapid leukemia clearance, especially in naïve patients.
  • 5-Year Ibrutinib-Venetoclax Follow-Up: Impressive 5-year progression-free survival, effective BTK inhibitor retreatment post-relapse.
  • Molecular Analysis at Ibrutinib/Rituximab Relapse: Progression mostly independent of BTK/PLCG2 mutations.
  • Venetoclax-Obinutuzumab Real-World Efficacy: Broad patient effectiveness, including comorbidities.
  • Venetoclax-Obinutuzumab Dose Impact: No PFS difference despite dose intensity variations, equally effective in fit/unfit patients.

Happy reading! Akiva.


Articles
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    • This retrospective, multicenter Italian study evaluates the feasibility and tolerability of fixed-duration venetoclax-obinutuzumab (VO) in treatment-naïve chronic lymphocytic leukemia (CLL) in common clinical practice. It focuses on reasons for choosing fixed-duration VO over continuous BTK inhibitors. The study, conducted from May 2022 to June 2023, involved 790 patients, with 232 receiving fixed-duration VO. The main reasons for selecting VO were disease biology, treatment duration, comorbidities, and patient preference. The study found that most clinicians adhered to the VO schedule, with a low rate of patients discontinuing therapy due to toxicity.

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    • This study analyzed the incidence of ventricular arrhythmias (VAs) and sudden deaths (SDs) in patients with chronic lymphocytic leukemia (CLL) treated with acalabrutinib, a next-generation Bruton tyrosine kinase inhibitor (BTKi). The analysis pooled data from five clinical trials, comparing acalabrutinib with standard-of-care therapies. The results showed that the risk of fatal VAs and SDs was low and similar between the acalabrutinib group and the comparator group. Nonfatal VAs were also comparable between the groups. The study concludes that acalabrutinib has a favorable safety profile regarding VAs and SDs, with risks comparable to standard-of-care treatments.

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    • This pooled analysis of the CLL13 and CLL14 studies evaluates the toxicity and efficacy of venetoclax-obinutuzumab (Ven-Obi) in patients with treatment-naive chronic lymphocytic leukemia (CLL), categorized as fit or unfit. The study found that the overall response rate (ORR) and 3-year progression-free survival (PFS) rates were similar between unfit and fit patients, indicating that Ven-Obi is effective in both groups. Adverse events, including neutropenia, infusion-related reactions, and infections, were comparable between the groups, though infusion-related reactions and fatigue were more common in fit patients. Importantly, reduced venetoclax dose intensity did not significantly impact PFS, suggesting that dose modifications may not greatly affect long-term clinical outcomes.