Drug Interactions between carfilzomib and Provera

GENERALLY AVOID: Venous thromboembolic events, including deep vein thrombosis (DVT) and pulmonary embolism (PE), have occurred during treatment with carfilzomib, and concurrent use of hormonal contraception also associated with this adverse effect can potentiate the risk. In clinical trials, the reported incidence of venous thromboembolic events was up to 15.3% with carfilzomib plus lenalidomide and dexamethasone versus 9% with lenalidomide and dexamethasone. In addition, the reported incidence of venous thromboembolic events was up to 10.6% with carfilzomib plus dexamethasone versus 3.1% with bortezomib plus dexamethasone. The incidence of thromboembolic events was 2% with carfilzomib monotherapy.

MANAGEMENT: Hormonal contraception associated with a risk of thrombosis should generally be avoided during use of carfilzomib. Advise female and male patients of reproductive potential to use effective contraception or abstain from sexual activity during treatment with carfilzomib for at least 30 and 90 days, respectively, following completion of therapy. Advise the patient to contact their physician immediately if pregnancy does occur during these times.