tasigna

Important safety information

Myelosuppression: Monitor complete blood count (CBC) during therapy and manage by treatment interruption or dose reduction. ( 5.1 ) Cardiac and Arterial Vascular Occlusive Events: Evaluate cardiovascular status, monitor and manage cardiovascular risk factors during Tasigna therapy. ( 5.4 ) Pancreatitis and Elevated Serum Lipase: Monitor serum lipase; if elevations are accompanied by abdominal symptoms, interrupt doses and consider appropriate diagnostics to exclude pancreatitis. ( 5.5 ) Hepatotoxicity: Monitor hepatic function tests monthly or as clinically indicated. ( 5.6 ) Electrolyte Abnormalities: Tasigna can cause hypophosphatemia, hypokalemia, hyperkalemia, hypocalcemia, and hyponatremia. Correct electrolyte abnormalities prior to initiating Tasigna and monitor periodically during therapy. ( 5.7 ) Tumor Lysis Syndrome: Maintain adequate hydration and correct uric acid levels prior to initiating therapy with Tasigna. ( 5.8 ) Hemorrhage: Hemorrhage from any site may occur. Advise patients to report signs and symptoms of bleeding and medically manage as needed. ( 5.9 ) Fluid Retention: Monitor patients for unexpected rapid weight gain, swelling, and shortness of breath. Manage medically. ( 5.13 ) Effects on Growth and Development in Pediatric Patients: Growth retardation has been reported in pediatric patients treated with Tasigna. Monitor growth and development in pediatric patients. ( 5.14 ) Embryo-Fetal Toxicity: Advise females of reproductive potential of potential risk to a fetus and to use effective contraception. ( 5.15 , 8.1 , 8.3 ) Treatment Discontinuation: Patients must have typical BCR-ABL transcripts. An FDA-authorized test with a detection limit below MR4.5 must be used to determine eligibility for discontinuation. Patients must be frequently monitored by the FDA authorized test to detect possible loss of remission. ( 5.16 ) 5.1 Myelosuppression Treatment with Tasigna can cause Grade 3/4 thrombocytopenia, neutropenia, and anemia. Perform CBCs every 2 weeks for the first 2 months and then monthly thereafter, or as clinically indicated. Myelosuppression was generally reversible and usually managed by withholding Tasigna temporarily or dose reduction [see Dosage and Administration (2.5)] . 5.2 QT Prolongation Tasigna has been shown to prolong cardiac ventricular repolarization as measured by the QT interval on the surface electrocardiogram (ECG) in a concentration-dependent manner [see Adverse Reactions (6.1), Clinical Pharmacology (12.2)]. Prolongation of the QT interval can result in a type of ventricular tachycardia called torsade de pointes, which may result in syncope, seizure, and/or death. Electrocardiograms should be performed at baseline, 7 days after initiation of Tasigna, and periodically as clinically indicated and following dose adjustments [see Dosage and Administration (2.4), Warnings and Precautions (5.12)] . Tasigna should not be used in patients who have hypokalemia, hypomagnesemia, or long QT syndrome. Before initiating Tasigna and periodically, test electrolyte, calcium, and magnesium blood levels. Hypokalemia or hypomagnesemia must be corrected prior to initiating Tasigna and these electrolytes should be monitored periodically during therapy [see Warnings and Precautions (5.12)] . Significant prolongation of the QT interval may occur when Tasigna is inappropriately taken with food and/or strong CYP3A4 inhibitors and/or medicinal products with a known potential to prolong QT. Therefore, coadministration with food must be avoided and concomitant use with strong CYP3A4 inhibitors and/or medicinal products with a known potential to prolong QT should be avoided [see Dosage and Administration (2.1), Drug Interactions (7.1, 7.2)] . The presence of hypokalemia and hypomagnesemia may further prolong the QT interval [see Warnings and Precautions (5.7, 5.12)] . 5.3 Sudden Deaths Sudden deaths have been reported in 0.3% of patients with CML treated with Tasigna in clinical studies of 5661 patients. The relative early occurrence of some of these deaths relative to the initiation of Tasigna suggests the possibility that ventricular repolarization abnormalities may have contributed to their occurrence. 5.4 Cardiac and Arterial Vascular Occlusive Events Cardiovascular events, including arterial vascular occlusive events, were reported in a randomized, clinical trial in newly diagnosed CML patients and observed in the postmarketing reports of patients receiving Tasigna therapy [see Adverse Reactions (6.1)] . With a median time on therapy of 60 months in the clinical trial, cardiovascular events, including arterial vascular occlusive events, occurred in 9% and 15% of patients in the Tasigna 300 and 400 mg twice daily arms, respectively, and in 3.2% in the imatinib arm. These included cases of cardiovascular events, including ischemic heart disease-related cardiac events (5% and 9% in the Tasigna 300 mg and 400 mg twice daily arms, respectively, and 2.5% in the imatinib arm), peripheral arterial occlusive disease (3.6% and 2.9% in the Tasigna 300 mg and 400 mg twice daily arms, respectively, and 0% in the imatinib arm), and ischemic cerebrovascular events (1.4% and 3.2% in the Tasigna 300 mg and 400 mg twice daily arms, respectively, and 0.7% in the imatinib arm). If acute signs or symptoms of cardiovascular events occur, advise patients to seek immediate medical attention. The cardiovascular status of patients should be evaluated and cardiovascular risk factors should be monitored and actively managed during Tasigna therapy according to standard guidelines [see Dosage and Administration (2.4)] . 5.5 Pancreatitis and Elevated Serum Lipase Tasigna can cause increases in serum lipase [see Adverse Reactions (6.1)] . Patients with a previous history of pancreatitis may be at greater risk of elevated serum lipase. If lipase elevations are accompanied by abdominal symptoms, interrupt dosing and consider appropriate diagnostics to exclude pancreatitis [see Dosage and Administration (2.6)] . Test serum lipase levels monthly or as clinically indicated. 5.6 Hepatotoxicity Tasigna may result in hepatotoxicity as measured by elevations in bilirubin, aspartate aminotransferase (AST), alanine aminotransferase (ALT), and alkaline phosphatase. Grade 3-4 elevations of bilirubin, AST, and ALT were reported at a higher frequency in pediatric than in adult patients. Monitor hepatic function tests monthly or as clinically indicated [see Warnings and Precautions (5.12)] and following dose adjustments. [see Dosage and Administration (2.6)] . 5.7 Electrolyte Abnormalities The use of Tasigna can cause hypophosphatemia, hypokalemia, hyperkalemia, hypocalcemia, and hyponatremia. Correct electrolyte abnormalities prior to initiating Tasigna and during therapy. Monitor these electrolytes periodically during therapy [see Warnings and Precautions (5. 1 2 )]. 5.8 Tumor Lysis Syndrome Tumor lysis syndrome (TLS) cases have been reported in Tasigna treated patients with resistant or intolerant CML. Malignant disease progression, high white blood cell (WBC) counts and/or dehydration were present in the majority of these cases. Due to potential for TLS, maintain adequate hydration and correct uric acid levels prior to initiating therapy with Tasigna. 5.9 Hemorrhage Serious hemorrhagic events, including fatal events, have occurred in patients with CML treated with Tasigna. In a randomized trial in patients with newly diagnosed Ph+ CML in chronic phase comparing Tasigna and imatinib, Grade 3 or 4 hemorrhage occurred in 1.1% of patients in the Tasigna 300 mg twice daily arm, in 1.8% of patients in the Tasigna 400 mg twice daily arm, and 0.4% of patients in the imatinib arm. GI hemorrhage occurred in 2.9% and 5% of patients in the Tasigna 300 mg twice daily and 400 mg twice daily arms and in 1.4% of patients in the imatinib arm, respectively. Grade 3 or 4 events occurred in 0.7% and 1.4% of patients in the Tasigna 300 mg twice daily and 400 mg twice daily arms,…