Here is data from biotech value board supporting the assertion.
Quote: 22% of CP-CML patients experienced an arterial thrombotic serious adverse event (SAE), and 27 percent of CP-CML patients experienced any arterial thrombotic event
Iclusig arterial thrombotic SAE rate continues to rise even after significant dose reduction. Compare the above numbers from 38-month follow-up against ASCO2014 30-month follow-up of 16% arterial thrombotic SAE, and 23% any arterial thrombotic event.