Effect of Phenytoin or Itraconazole on How BGB-16673 is Absorbed and Removed From the Body in Healthy Participants

Eligibility Criteria

• * Male or female, of any race, between 18 and 65 years of age
• * In good health, as determined by no clinically significant findings from medical history,12- lead ECG and vital signs measurements, physical examination and clinical laboratory evaluations
• * Body mass index between 18.0 and 32.0kg/m2, inclusive
• * Significant history or clinical manifestation of any metabolic, allergic, dermatological, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal, neurological, respiratory, endocrine, or psychiatric disorder, as determined by the investigator or designee.
• * Evidence of any infections (bacterial, viral, fungal, parasitic) within 4 weeks prior to the first dose of study drug, as determined by the investigator (or designee).
• * History of malignancy, except for appropriately treated carcinoma in situ of the cervix or nonmelanoma skin carcinoma not requiring ongoing systemic treatment.
• * History of stomach or intestinal surgery or resection that would potentially alter absorption and/or excretion of orally administered drugs (uncomplicated appendectomy and hernia repair are allowed).
• * Participants who have acute gastrointestinal symptoms at the time of screening and or/admission (eg, nausea, vomiting, diarrhea, or heartburn).