Conditions: Healthy Volunteer
Allocation: NON_RANDOMIZED | Intervention model: CROSSOVER
Enrollment: 23
Healthy volunteers: yes

Brief summary:
This open-label study will investigate whether multiple oral doses of posaconazole affect the single dose pharmacokinetics of alectinib in healthy volunteers.

Detailed description:

Arms:
arm 1: There will be 3 dosing periods in the study: Period 1 (Days 1 to 7), Period 2 (Days 8 to 14), and Period 3 (Days 15 to 18). Alectinib will be administered as a 40 milligrams (mg) single oral dose on Day 1 (Period 1) and Day 15 (Period 3) with an identical standardized meal (identical meal on Day 1 and Day 15 across all participants). On Days 8 to 14 (Period 2) and Days 15 to 18 (Period 3) posaconazole will be administered as a 400-mg twice daily (BID) oral dose after a high-fat meal. The follow-up assessments will occur within 10 to 14 days after the last dose of posaconazole. arm 2: There will be 3 dosing periods in the study: Period 1 (Days 1 to 7), Period 2 (Days 8 to 14), and Period 3 (Days 15 to 21). Alectinib will be administered as a single oral dose at the dose selected based on Cohort A data on Day 1 (Period 1) and Day 15 (Period 3) with an identical standardized meal (identical meal on Day 1 and Day 15 across all participants). On Days 8 to 14 (Period 2) and Days 15 to 21 (Period 3) posaconazole will be administered as a 400-mg BID oral dose after a high-fat meal. The follow-up assessments will occur within 10 to 14 days after the last dose of posaconazole.

Interventions: intervention 1: Alectinib intervention 2: Posaconazole
Intervention descriptions: intervention 1: Alectinib will be administered as a single oral dose on Day 1 (Period 1) and Day 15 (Period 3) with an identical standardized meal (identical meal on Day 1 and Day 15 across all participants). intervention 2: Posaconazole will be administered as a 400-mg BID oral dose after a high-fat meal on Days 8 to 14 (Period 2) and Days 15 to 18 or 21 (Period 3).

Protocol document: