MONOCLONAL ANTIBODY-BASED TYROSINE KINASE INHIBITORS.
Bevacizumab. Arterial thrombotic events (ATEs)
tend to occur more frequently in patients treated with
bevacizumab with chemotherapy as compared with patients
treated with chemotherapy alone (10). In a pooled analysis
of 1,745 patients from 5 randomized controlled trials in
metastatic colorectal, nonsmall cell lung cancer, and metastatic
breast cancer patients, the overall incidence of ATEs
was 3.8% (93). When looking at MI/angina specifically, the
incidence was 1.5% versus 1% in the bevacizumab group as
compared with the control group, respectively (93). In an
ongoing observational study of 1,953 patients receiving
bevacizumab plus chemotherapy, the incidence of serious
ATEs was 1.8%. Of the patients identified with an ATE, 11
patients had a MI (0.6%) (94). Bevacizumab-associated
ATEs were reported to occur at any time during therapy,
although in both studies mentioned, the median time to
event was approximately 3 months. Events did not seem to
be associated with dose or cumulative exposure. Age 65