Important adverse reactions
Myelosuppression
Iclusig is associated with severe (National Cancer Institute Common Terminology Criteria for Adverse Events grade 3 or 4) thrombocytopenia, neutropenia, and anaemia. The frequency of these events is greater in patients with accelerated phase CML (AP-CML) or blast phase CML (BP-CML)/Ph+ ALL than in chronic phase CML (CP-CML). A complete blood count should be performed every 2 weeks for the first 3 months and then monthly or as clinically indicated. Myelosuppression was generally reversible and usually managed by withholding Iclusig temporarily or reducing the dose (see section 4.2).
Vascular occlusion
Arterial and venous thrombosis and occlusions, including fatal myocardial infarction, stroke, stenosis of large arterial vessels of the brain, severe peripheral vascular disease, and the need for urgent revascularization procedures have occurred in Iclusig-treated patients. Patients with and without cardiovascular risk factors, including patients age 50 years or younger, experienced these events. Vascular occlusion adverse events were more frequent with increasing age and in patients with prior history of ischaemia, hypertension, diabetes, or hyperlipidaemia.
Iclusig should not be used in patients with a history of myocardial infarction or stroke, unless the potential benefit of treatment outweighs the potential risk (see sections 4.2 and 4.8).
Before starting treatment with ponatinib, the cardiovascular status of the patient should be assessed and cardiovascular risk factors should be actively managed. Cardiovascular status should continue to be monitored and therapy optimised during treatment with ponatinib.
Monitoring for evidence of thromboembolism and vascular occlusion should be performed and Iclusig should be interrupted immediately in case of vascular occlusion. A benefit -risk consideration should guide a decision to restart Iclusig therapy (see sections 4.2 and 4.8).
Hypertension may contribute to risk of arterial thrombotic events. During Iclusig treatment, blood pressure elevations should be monitored and managed and hypertension should be treated to normal. Iclusig treatment should be temporarily interrupted if hypertension is not medically controlled (see section 4.2).
Pancreatitis and serum lipase
Iclusig is associated with pancreatitis. The frequency of pancreatitis is greater in the first 2 months of use. Check serum lipase every 2 weeks for the first 2 months and then periodically thereafter. Dose interruption or reduction may be required. If lipase elevations are accompanied by abdominal symptoms, Iclusig should be withheld and patients eva luated for evidence of pancreatitis (see section 4.2). Caution is recommended in patients with a history of pancreatitis or alcohol abuse. Patients with severe or very severe hypertriglyceridemia should be appropriately managed to reduce the risk of pancreatitis.
Liver function abnormality
Iclusig may result in elevation in ALT, AST, bilirubin, and alkaline phosphatase. Liver function tests should be performed periodically, as clinically indicated.
Medicinal product interactions
Caution should be exercised with concurrent use of Iclusig and moderate and strong CYP3A inhibitors and moderate and strong CYP3A inducers (see section 4.5).
Elevated gastric pH
Caution should be exercised with concurrent use of Iclusig and medicinal products that elevate the gastric pH (such as proton pump inhibitors, H2 blockers, or antacids) as these may decrease the solubility of ponatinib and subsequently reduce its bioavailability.
QT prolongation
The QT interval prolongation potential of Iclusig was assessed in 39 leukaemia patients and no clinically significant QT prolongation was observed (see section 5.1). However, a thorough QT study has not been performed; therefore a clinically significant effect on QT cannot be excluded.
Special populations
Hepatic impairment
Caution is recommended when administering Iclusig to patients with varying degrees of hepatic impairment (see section 4.2).
Renal impairment
Caution is recommended in when administering Iclusig to patients with estimated creatinine clearance of < 50 mL/min or end-stage renal disease (see section 4.2).
Lactose
This medicinal product contains lactose monohydrate. Patients with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption should not take this medicinal product.
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