DIR Classification
Classification:Moderate-DIQT concern
Severity Score:3.0
Description in Drug Labeling: View Full Labeling: SPL in DailyMed | PDF
- WARNINGS AND PRECAUTIONS
- QT Interval Prolongation
- QTc prolongation can occur in patients treated with XALKORI. Across clinical trials, 2.1% of 1616 patients had QTcF (corrected QT for heart rate by the Fridericia method) greater than or equal to 500 ms and 5% of 1582 patients had an increase from baseline QTcF greater than or equal to 60 ms by automated machine-read evaluation of ECGs.
- Avoid use of XALKORI in patients with congenital long QT syndrome. Monitor ECGs and electrolytes in patients with congestive heart failure, bradyarrhythmias, electrolyte abnormalities, or who are taking medications that are known to prolong the QT interval. Withhold, reduce dose, or permanently discontinue XALKORI for QT/QTc interval prolongation as recommended [see DOSAGE AND ADMINISTRATION (2.3), CLINICAL PHARMACOLOGY (12.2)].
- DRUG INTERACTIONS
- Drugs That Prolong the QT Interval
- XALKORI can prolong the QT/QTc interval. Avoid concomitant use of XALKORI with drugs that prolong the QT interval [see WARNINGS AND PRECAUTIONS (5.3), CLINICAL PHARMACOLOGY (12.2)].
- DOSAGE AND ADMINISTRATION
- ADVERSE REACTIONS
- The following clinically significant adverse reactions are described elsewhere in the labeling:
- Hepatotoxicity [see WARNINGS AND PRECAUTIONS (5.1)]
- Interstitial Lung Disease/Pneumonitis [see WARNINGS AND PRECAUTIONS (5.2)]
- QT Interval Prolongation [see WARNINGS AND PRECAUTIONS (5.3)]
- Bradycardia [see WARNINGS AND PRECAUTIONS (5.4)]
- Severe Visual Loss [see WARNINGS AND PRECAUTIONS (5.5)]
- CLINICAL PHARMACOLOGY
- Pharmacodynamics
- Cardiac Electrophysiology
- In an ECG substudy conducted in 52 patients with ALK-positive NSCLC, the maximum mean QTcF (corrected QT by the Fridericia method) change from baseline was 12.3 ms (2-sided 90% upper CI: 19.5 ms) following administration of XALKORI 250 mg orally twice daily. An exposure-QT analysis suggested a crizotinib plasma concentration-dependent increase in QTcF [see WARNINGS AND PRECAUTIONS (5.3)].
- PATIENT PACKAGE INSERT
- What should I tell my healthcare provider before taking XALKORI?
- Before you take XALKORI, tell your healthcare provider if you:
- have heart problems, including a condition called long QT syndrome
- have liver or kidney problems
- have vision or eye problems
- have any other medical conditions