Conditions: Human Immunodeficiency Virus Type 1 (HIV-1) HIV Infections
Allocation: NON_RANDOMIZED | Intervention model: SINGLE_GROUP
Enrollment: 185
Healthy volunteers: yes

Brief summary:
This study assesses the effects of voriconazole, 200 mg, administered twice daily (BID), on the steady-state pharmacokinetics of atazanavir administered as atazanavir/ritonavir, 300/100 mg once daily (QD), in healthy participants with functional CYP2C19 alleles. The study also reviews the effects of atazanavir/ritonavir, 300/100 mg QD, on the pharmacokinetics of voriconazole, 200 mg, BID in healthy participants with functional CYP2C19 alleles.

Detailed description:

Arms:
arm 1: None arm 2: None arm 3: None arm 4: None arm 5: None

Interventions: intervention 1: Voriconazole intervention 2: Atazanavir intervention 3: Ritonavir
Intervention descriptions: intervention 1: Treatment A: Participants with functional CYP2C19 alleles (EM) received oral tablets of voriconazole, 400 mg, twice daily (BID), on Day 1, then 200 mg BID on Days 2 and 3. Voriconazole dose was given at least 1 hour after a light meal. Treatment C: EM participants received atazanavir/ritonavir, 300/100 mg once daily (QD), plus voriconazole, 400 mg BID on Day 21 then 200 mg BID on Days 22-30. Atazanavir/ritonavir dose was administered in the morning within 5 minutes of completing a light meal, and 1 hour before voriconazole morning dose. Treatment E: PM participants received atazanavir/ritonavir, 300/100 mg QD plus voriconazole, 100 mg BID, on Day 21, then 50 mg BID on Days 22-30. intervention 2: Treatment B in EM participants: EM participants received atazanavir/ritonavir, 300/100 mg once daily (QD), on Days 11 through 20. Treatment B in participants who were poor metabolizers of CYP2C19 (PMs): PM participants received oral tablets of atazanavir/ritonavir, 300/100 mg QD, on Days 11 through 20. Treatment C: EM participants received atazanavir/ritonavir, 300/100 mg QD, plus voriconazole, 400 mg BID on Day 21 then 200 mg BID on Days 22-30. Treatment E: PM participants received atazanavir/ritonavir, 300/100 mg QD plus voriconazole, 100 mg BID, on Day 21, then 50 mg BID on Days 22-30. intervention 3: Treatment B: EM participants received atazanavir/ritonavir, 300/100 mg once daily (QD), on Days 11 through 20. Atazanavir/ritonavir dose was administered in the morning within 5 minutes of completing a light meal.

Treatment C: EM participants received atazanavir/ritonavir, 300/100 mg QD, plus voriconazole, 400 mg BID on Day 21 then 200 mg BID on Days 22-30. Atazanavir/ritonavir dose was administered in the morning within 5 minutes of completing a light meal, and 1 hour before voriconazole morning dose.Treatment E: PM participants received atazanavir/ritonavir, 300/100 mg QD plus voriconazole, 100 mg BID, on Day 21, then 50 mg BID on Days 22-30. Treatment B in PM participants: PM participants received atazanavir/ritonavir, 300/100 mg QD, on Days 11 through 20. Atazanavir/ritonavir dose was administered in the morning within 5 minutes of completing a light meal.

Protocol document: