3. Participants requiring treatment with clinically significant enzyme inducers, such as the enzyme-inducing anti-epileptic drugs phenytoin, carbamazepine, phenobarbital, oxcarbazepine, primidone, rifampin, rifabutin, rifapentine, or St. John's wort within 14 days before the first dose of alisertib or requiring the use of these medications during the study.