Conditions: Type 2 Diabetes Mellitus
Keywords: Drug therapy
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 48
Healthy volunteers: yes

Brief summary:
This is a phase 1, randomized, double-blind, placebo-controlled, 2-center, multiple-dose study in healthy participants and participants with type 2 diabetes mellitus (T2DM). This study will evaluate the safety, tolerability and pharmacokinetics (PK) of TAK-648 when administered as multiple oral doses of TAK-648 solution at escalating dose levels in healthy participants of Japanese decent and participants with T2DM.

Detailed description:
The drug being evaluated in this study is TAK-648 for the treatment of T2DM.

This study will consist of 2 parts: (1) multiple ascending doses in participants with T2DM treated with a stable dose of metformin, (2) multiple ascending doses in healthy participants of Japanese descent.

Part 1 of this study will consist of 2 multiple dose treatment cohorts (Cohorts 1-2 designated as P1C1 and P1C2) dosed sequentially in escalating order. The projected doses of TAK-648 for Part 1 are 0.15 and 0.35 mg of TAK-648, but may be adjusted higher or lower, and additional cohorts may be added, based on available safety and pharmacokinetic (PK) data. All cohorts in Part 1 will consist of 8 (2 placebo) T2DM participants.

Part 2 of this study will consist of 3 multiple dose treatment cohorts (Cohorts 1-3 designated as P2C1, P2C2 and P2C3) in healthy participants of Japanese descent dosed sequentially in escalating order. The projected doses of TAK-648 chosen for Part 2 are 0.05, 0.15 and 0.35 mg of TAK-648, but may be adjusted higher or lower based on available safety and PK data. All cohorts in Part 2 will consist of 8 (2 placebo) healthy participants of Japanese descent.

Additional cohorts may be recruited and studied as necessary to better evaluate safety, tolerability, PK, and/or PD parameters.

Arms:
arm 1: Participants with T2DM on a stable dose of metformin in study Part 1, Cohort 1 received TAK-648 0.35 mg, solution, orally, single dose on Day 1, no drug administration on Days 2 to 3, followed by once daily (QD) doses starting on Day 4 and continuing through Day 17 (14 days). arm 2: Participants with T2DM on a stable dose of metformin in study Part 1, Cohort 2 received TAK-648 0.80 mg, solution, orally, single dose on Day 1, no drug administration on Days 2 to 3, followed by once daily (QD) doses starting on Day 4 and continuing through Day 17 (14 days). arm 3: Participants with T2DM on a stable dose of metformin in study Part 1 received placebo-matching TAK-648, solution, orally, single dose on Day 1, no drug administration on Days 2 to 3, followed by once daily (QD) doses starting on Day 4 and continuing through Day 17 (14 days). arm 4: Healthy participants of Japanese descent in study Part 2, Cohort 1 received TAK-648 0.05 mg, solution , orally, single dose on Day 1, no drug administration on Days 2 to 3, followed by multiple QD doses starting on Day 4 and continuing through Day 10 (7 days). arm 5: Healthy participants of Japanese descent in study Part 2, Cohort 2 received TAK-648 0.15 mg, solution, orally, single dose on Day 1, no drug administration on Days 2 to 3, followed by multiple QD doses starting on Day 4 and continuing through Day 10 (7 days). arm 6: Healthy participants of Japanese descent in study Part 2, Cohort 3 received TAK-648 0.35 mg, solution, orally, single dose on Day 1, no drug administration on Days 2 to 3, followed by multiple QD doses starting on Day 4 and continuing through Day 10 (7 days). arm 7: Healthy participants of Japanese descent in study Part 2, Cohort 4 received TAK-648 0.80 mg, solution, orally, single dose on Day 1, no drug administration on Days 2 to 3, followed by multiple QD doses starting on Day 4 and continuing through Day 10 (7 days). arm 8: Healthy participants of Japanese descent in study Part 2, received TAK-648 placebo-matching solution, orally, single dose on Day 1, no drug administration on Days 2 to 3, followed by multiple QD doses starting on Day 4 and continuing through Day 10 (7 days).

Interventions: intervention 1: TAK-648 intervention 2: Placebo
Intervention descriptions: intervention 1: TAK-648 solution intervention 2: TAK-648 placebo-matching solution

Protocol document: