The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of multiple ascending-doses of TAK-875 in subjects with type 2 diabetes mellitus.

TAK-875 is being developed as an adjunct to diet and exercise to improve glycemic control in patients with type 2 diabetes mellitus. Nonclinical data suggest that TAK-875 stimulates insulin secretion only at elevated blood glucose levels, with the potential for low hypoglycemic side effects.

The purpose of this phase 1, multiple ascending-dose study is to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of once daily oral doses of TAK-875 for 14 days in subjects with type 2 diabetes mellitus.

Participants will be housed for a total of 8 consecutive overnight stays in the clinic, and will undergo oral glucose tolerance tests and standardized meal tests with multiple blood sampling throughout their clinic stay.

Inclusion Criteria:

• Participants with type 2 diabetes who are newly diagnosed, managed with diet and exercise alone, or taking up to 2 oral antidiabetic agents (except thiazolidinediones) and willing to discontinue the antidiabetic medication(s) 2 weeks prior to randomization.

• Meets one of the following glycosylated hemoglobin criteria (diagnosis must be based on current American Diabetes Association criteria) at Screening:

  • If treatment naïve, should have a glycosylated hemoglobin concentration greater than or equal to 6.5% and less than or equal to 10.0%.
  • If on a single antidiabetic agent (stable dose for at least 28 days), should have a glycosylated hemoglobin greater than or equal to 6% and less than or equal to 9.5%.
  • If on a combination of up to 2 antidiabetic agents (stable doses for at least 28 days), should have a glycosylated hemoglobin greater than or equal to 6% and less than or equal to 9.0%.

• Has fasting plasma glucose greater than 126 mg/dL and less than 260 mg/dL if not on any antidiabetic medication, or less than 220 mg/dL if on any single antidiabetic agent, and less than 200 mg/dL if on any combination of 2 oral antidiabetic agents at Screening.

• Has fasting C-peptide concentration greater than or equal to 0.8 ng/mL at Screening.

• Weighs at least 50 kg (110 lb) and has a body mass index between 18 and 40 kg/m2, inclusive at Screening.

• Has not received treatment with weight-loss drugs within the 3 months prior to Screening.

• Has a systolic blood pressure less than or equal to 160 mm Hg and a diastolic blood pressure of less than or equal to 100 mm Hg at Screening and at Check-in (Day -2).

• Female participant is not of child-bearing potential (ie, surgically sterile [hysterectomy, bilateral oophorectomy, or 2 years post-tubal ligation] or postmenopausal [2 years since last menses]).

• Is able and willing to monitor blood glucose concentrations with a home glucose monitor during the Washout Interval and record results in the daily diary.

• Has negative test results at Screening and Check-in for selected substances of abuse, including alcohol and cotinine.

• Has Screening and Check-in clinical laboratory evaluations [including fasting clinical chemistry, hematology, and complete urinalysis (excluding glucose results)] within the reference range for the testing laboratory, unless the investigator deems the out-of-range results to be not clinically significant.

• Has negative test results for hepatitis B surface antigen and antibody to hepatitis C virus, and no known history of human immunodeficiency virus.

• Is willing to refrain from strenuous exercise from 72 hours before Check-in and throughout the study.

• Is considered by the investigator to be in a good health (other than being diabetic) as determined during the medical history review, physical examination findings, electrocardiogram and vital sign results, and clinical laboratory evaluations.

• Has creatinine clearance greater than 60 mL/min at Screening and Check-in.

Exclusion Criteria:

• Has a history of abdominal surgery (except laparoscopic cholecystectomy or uncomplicated appendectomy), thoracic, or nonperipheral vascular surgery within 6 months prior to Check-in.
• Has a known hypersensitivity to TAK-875, or other related compounds.
• Has a history of cardiac arrhythmia, systolic dysfunction congestive heart failure, angina, myocardial ischemia or infarction, or stroke within 1 year prior to Screening, or the presence of an abnormal electrocardiogram that, in the investigator's opinion, is clinically significant.
• Has a history of drug abuse or a history of alcohol abuse within 2 years prior to Screening.
• Has used any tobacco (ie, nicotine) products within 90 days prior to Check-in, and is unwilling to abstain from these products for the duration of the study.
• Has a history of cancer that has not been in remission for at least 5 years prior to the first dose of study drug. This criterion does not apply to basal cell or stage I squamous cell carcinoma of the skin.
• Has an alanine aminotransferase, alkaline phosphatase or aspartate aminotransferase level greater than or equal to 2 times the upper limit normal for the testing laboratory, active liver disease, or jaundice at Screening or Check-in.
• Has a total bilirubin greater than 2 mg/dL at Screening or Check-in.
• Has donated blood or experienced acute blood loss (including plasmapheresis) of greater than 500 mL within 90 days prior to the first dose of study drug.
• Participant is on any insulin treatment.
• The subject has a history of proteinuria greater than 300 mg/day on a 12- or 24-hour urine collection or an albumin/creatinine ratio greater than 300 μg/mg at Screening. If elevated, the subject may be rescreened within 1 week, and may be included in study with agreement between Principal Investigator and the Takeda Global Research and Development Medical Monitor.
• Has a history of any clinically significant retinopathy, which is defined as more than moderate nonproliferative diabetic retinopathy or any stage of proliferative diabetic retinopathy or any history of laser-treated retinopathy.
• Has history of treated or clinically significant peripheral or autonomic neuropathy.
• The subject has a history of ulcerative colitis or Crohn's disease, or has undergone gastric resection.
• The subject has a history of a psychiatric disorder that will affect the subject's ability to participate in the study.
• Has a history of angioedema.
• Had an acute, clinically significant illness within 30 days prior to Check-in, or any other condition or prior therapy that, in the opinion of the investigator, would make the subject unsuitable for the study.
• Participant took or requires the use of any restricted medication or products within the timeframes listed.
• Is participating in another investigational study or has taken any investigational drug within 30 days prior to Check-in.
• Has poor venous access.
• Has been randomized in a previous TAK-875 study within 6 months prior to the first dose of study drug.