Conditions: Hypertension
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 30
Healthy volunteers: no

Brief summary:
This study will evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of multiple doses of MK-3614 in male participants with mild to moderate hypertension. The primary hypotheses are: 1) Multiple oral doses of MK-3614 are sufficiently safe and well tolerated to permit continued clinical investigation 2) Aortic Augmentation Index (Aix) is reduced 24 hours post the last dose of MK-3614 administered compared to placebo and 3) Increase in the 12-hour weighted averages (TWA 0-12hours) of the heart rate is within 15 beats per minute (bpm) of baseline on first day of multiple dosing of MK-3614 and within 10 bpm of baseline on last day of multiple dosing of MK-3614.

Detailed description:

Arms:
arm 1: Participants received 0.25 mg of MK-3614 twice daily (BID) every 12 hours orally for 10 days. arm 2: Participants received 0.50 mg of MK-3614 in the morning (AM) and 0.25 mg of MK-3614 in the evening (PM) 12 hours apart orally for 10 days. arm 3: Participants were to receive 0.75 mg of MK-3614 BID every 12 hours orally for 10 Days. Per protocol amendment, the Panel B dose was repeated, and participants received instead 0.50 mg of MK-3614 in the AM, and 0.25 mg of MK-3614 in the PM, 12 hours apart orally for 10 days. arm 4: Participants received 0.50 mg of MK-3614 three times a day (TID) orally every 8 hours on Day 1 followed by a wash out period for Days 2, 3 and 0.50 mg of MK-3614 every 12 hours orally for 10 days (Days 4-13). arm 5: Participants were to receive orally 0.50 mg of MK-3614 BID every 12 hours on Day 1 followed by 3 doses (0.50/0.50/0.25 mg) of MK-3614 each 8 hours apart on Day 2; three doses of 0.50 mg of MK-3614 8 hours apart on Days 3,4; and 0.75 mg of MK-3614 BID every 12 hours on Days 5-14. No participants were enrolled in this group. arm 6: Participants received a dose matched placebo orally according to randomization.

Interventions: intervention 1: MK-3614 intervention 2: Placebo for MK-3614
Intervention descriptions: intervention 1: Participants were administered 0.25 mg tablet, orally for a total daily dose according to randomization. intervention 2: Participants were administered dose matched placebo tablets according to randomization.

Protocol document: