Conditions: Healthy Volunteer
Allocation: RANDOMIZED | Intervention model: CROSSOVER
Enrollment: 97
Healthy volunteers: yes

Brief summary:
This 2-part, single center, open-label, randomized, single-dose, 4-sequence, 4-period cross-over study will compare the bioequivalence of three test RO5424802 capsule formulations with the reference capsule formulation in healthy adult volunteers. All participants in both fasted (Part 1) and fed (Part 2) conditions of the study will receive each of 4 treatments (Ro542-4802/F03 \[RO5424802 with 50 percentage (%) sodium lauryl sulfate (SLS) (reference)\], Ro542-4802/F07 \[RO5424802 with 25% SLS (test)\], Ro542-4802/F14 \[RO5424802 with 12.5% SLS (test)\] and Ro542-4802/F08 \[RO5424802 with 3% SLS (test)\] in a randomized sequence. Each treatment will be given as a single 600 milligrams (mg) oral administration in an upright position on Day 1 after an overnight fast, followed by a 10-day washout period. Total time on study is expected to last up to 75 days, for each enrolled participant.

Detailed description:

Arms:
arm 1: Participants will receive Ro542-4802/F03 (containing 50% SLS) capsules orally on Day 1 of first intervention period; then Ro542-4802/F07 (containing 25% SLS) capsules orally on Day 1 of second intervention period; then Ro542-4802/F14 (containing 12.5% SLS) capsules orally on Day 1 of third intervention period; followed by Ro542-4802/F08 (containing 3% SLS) capsules orally on Day 1 of fourth intervention period during both fasted (Part 1) and fed (Part 2) conditions. A washout period of at least 10 days will be maintained between each period. arm 2: Participants will receive Ro542-4802/F07 (containing 25% SLS) capsules orally on Day 1 of first intervention period; then Ro542-4802/F08 (containing 3% SLS capsules orally on Day 1 in second intervention period; then Ro542-4802/F03 (containing 50% SLS) (containing 12.5% SLS) capsules orally on Day 1 of third intervention period; followed by Ro542-4802/F14 (containing 12.5% SLS) capsules orally on Day 1 of the fourth intervention period during both fasted (Part 1) and fed (Part 2) conditions. A washout period of at least 10 days will be maintained between each period. arm 3: Participants will receive Ro542-4802/F08 (containing 3% SLS) capsules orally on Day 1 of first intervention period; then Ro542-4802/F14 (containing 12.5% SLS) capsules orally on Day 1 in second intervention period; then Ro542-4802/F07 (containing 25% SLS) capsules orally on Day 1 of third intervention period; followed by Ro542-4802/F03 (containing 50% SLS) capsules orally on Day 1 of the fourth intervention period during both fasted (Part 1) and fed (Part 2) conditions. A washout period of at least 10 days will be maintained between each period. arm 4: Participants will receive Ro542-4802/F14 (containing 12.5% SLS) capsules orally on Day 1 of first intervention period; then Ro542-4802/F03 (containing 50% SLS) capsules orally on Day 1 in second intervention period; then Ro542-4802/F08 (containing 3% SLS) capsules orally on Day 1 of third intervention period; followed by Ro542-4802/F07 (containing 25% SLS) capsules orally on Day 1 of the fourth intervention period during both fasted (Part 1) and fed (Part 2) conditions. A washout period of at least 10 days will be maintained between each period.

Interventions: intervention 1: Ro542-4802/F03 (Reference) intervention 2: Ro542-4802/F07 (Test) intervention 3: Ro542-4802/F08 (Test) intervention 4: Ro542-4802/F14 (Test)
Intervention descriptions: intervention 1: Participants will receive Ro542-4802/F03 (containing 50% SLS) 600 mg capsules orally on Day 1. intervention 2: Participants will receive Ro542-4802/F07 (containing 25% SLS) 600 mg capsules orally on Day 1. intervention 3: Participants will receive Ro542-4802/F08 (containing 3% SLS) 600 mg capsules orally on Day 1. intervention 4: Participants will receive Ro542-4802/F14 (containing 12.5% SLS) 600 mg capsules orally on Day 1.

Protocol document: