11. Patients who are receiving treatment with medications that are known to be strong inhibitors or inducers of CYP3A4/5 (listed in Protocol Attachment 3) or drugs metabolized by CYP2B6 or CYP2C9 (listed in Protocol Attachment 3) that cannot be discontinued prior to study entry and for the duration of the study. Medications that are strong CYP3A4/5 inhibitors should be discontinued for at least 2 days, and strong CYP3A4/5 inducers for at least 1 week prior to initiating LDE225 dosing.