ABL Tyrosine Kinase Inhibitors (TKIs) Are Associated with Increased Rho-Associated Kinase (ROCK) Activity That May Contribute to Vascular Toxicity in Patients with Chronic Myeloid Leukemia (CML)

ConclusionsWe found that patients on 2nd and 3rd generation TKIs have higher leukocyte ROCK activity compared to those not receiving TKIs, and higher leukocyte ROCK activity in patients on Dasatinib compared with patients receiving Imatinib. These results are consistent with the known lower-risk of cardiovascular side-effects observed with Imatinib in comparison to the next generation ABL TKIs. Limitations include small sample size and heterogeneity in the patient population in terms of age, cardiovascular risk factors, specific TKI used, and total duration and sequencing of TKI agents. The study continues to accrue CML subjects in order to follow individual patients over time on TKI therapy.DisclosuresLarson: Ariad/Takeda: Consultancy, Research Funding; BristolMyers Squibb: Consultancy, Research Funding; Novartis: Consultancy, Research Funding; Pfizer: Consultancy, Research Funding.
Source: Blood - Category: Hematology Authors: Tags: 632. Chronic Myeloid Leukemia: Therapy: Poster I Source Type: research