Clinical trial NCT00286494 (phase 3, status: completed)
Conditions: diabetes mellitus
ICD codes: P70.2, O24.92, Z83.3, E10.65, E10.9, E11.65, E11.9
Drugs: alogliptin and pioglitazone, alogliptin and pioglitazone, pioglitazone
SMILES: CCC1=CN=C(CCOC2=CC=C(CC3SC(=O)NC3=O)C=C2)C=C1, CCC1=CN=C(CCOC2=CC=C(CC3SC(=O)NC3=O)C=C2)C=C1, N[C@@H](CCCNC(N)=N)C(O)=O
Eligibility criteria:

        Inclusion Criteria

          -  Diagnosis of type 2 diabetes mellitus currently treated with a thiazolidinedione
             either alone or in combination with metformin or a sulfonylurea but who are
             experiencing inadequate glycemic control. The subject should have received the
             thiazolidinedione therapy (rosiglitazone or pioglitazone) either alone or in
             combination with metformin or a sulfonylurea for at least the 3 months prior to
             Screening and must have been on a stable dose for all their antidiabetic treatments
             for at least the month prior to Screening.

          -  No treatment with antidiabetic agents other than a thiazolidinedione alone or in
             combination with either metformin or a sulfonylurea within the 3 months prior to
             Screening. (Exception: if a subject has received other antidiabetic therapy for less
             than 7 days within the 3 months prior to Screening.)

          -  Body mass index greater than or equal to 23 kg/m2 and less than or equal to 45 kg/m2

          -  Fasting C-peptide concentration greater than or equal to 0.8 ng per mL. (If this
             screening criterion is not met, the subject still qualifies if C-peptide is greater
             than or equal to 1.5 ng per mL after a challenge test.)

          -  Glycosylated hemoglobin concentration between 7.0% and 10.0%, inclusive.

          -  If regular use of other, non-excluded medications, must be on a stable dose for at
             least the 4 weeks prior to Screening. However, as needed use of prescription or
             over-the-counter medications is allowed at the discretion of the investigator.

          -  Systolic blood pressure less than or equal to 180 mm Hg and diastolic pressure less
             than or equal to 110 mm Hg.

          -  Hemoglobin greater than or equal to 12 g per dL for males and greater than or equal
             to10 g per dL for females.

          -  Alanine aminotransferase less than or equal to 2.5 times the upper limit of normal.

          -  Serum creatinine less than or equal to 2.0 mg per dL.

          -  Thyroid-stimulating hormone level less than or equal to the upper limit of the normal
             range and the subject is clinically euthyroid.

          -  Neither pregnant nor lactating.

          -  Female subjects of childbearing potential must be practicing adequate contraception.
             Adequate contraception must be practiced for the duration of participation in the
             study.

          -  Able and willing to monitor their own blood glucose concentrations with a home glucose
             monitor.

          -  No major illness or debility that in the investigator's opinion prohibits the subject
             from completing the study.

          -  Able and willing to provide written informed consent.

        Exclusion Criteria

          -  Urine albumin to creatinine ratio of greater than 1000 μg per mg at Screening. If
             elevated, the subject may be rescreened within 1 week.

          -  History of cancer, other than squamous cell or basal cell carcinoma of the skin, that
             has not been in full remission for at least 5 years prior to Screening. (A history of
             treated cervical intraepithelial neoplasia I or cervical intraepithelial neoplasia II
             is allowed.)

          -  History of laser treatment for proliferative diabetic retinopathy within the 6 months
             prior to Screening.

          -  History of treated diabetic gastric paresis.

          -  New York Heart Association Class III or IV heart failure regardless of therapy.
             Currently treated subjects who are stable at Class I or II are candidates for the
             study.

          -  History of coronary angioplasty, coronary stent placement, coronary bypass surgery, or
             myocardial infarction within the 6 months prior to Screening

          -  History of any hemoglobinopathy that may affect determination of glycosylated
             hemoglobin.

          -  History of infection with hepatitis B, hepatitis C, or human immunodeficiency virus.

          -  History of a psychiatric disorder that will affect the subject's ability to
             participate in the study.

          -  History of angioedema in association with use of angiotensin-converting enzyme
             inhibitors or angiotensin-II receptor inhibitors.

          -  History of alcohol or substance abuse within the 2 years prior to Screening.

          -  Receipt of any investigational drug within the 30 days prior to Screening or a history
             of receipt of an investigational antidiabetic drug within the 3 months prior to
             Screening.

          -  Prior treatment in an investigational study of alogliptin.

          -  Excluded Medications:

               -  Treatment with antidiabetic agents other than a thiazolidinedione alone or in
                  combination with either metformin or a sulfonylurea is not allowed within the 3
                  months prior to Screening and through the completion of the
                  end-of-treatment/early termination procedures.

               -  Treatment with weight-loss drugs, any investigational antidiabetics, or oral or
                  systemically injected glucocorticoids is not allowed from 3 months prior to
                  randomization through the completion of the end-of-treatment/early termination
                  procedures. Inhaled corticosteroids are allowed.

        Subjects must not take any medications, including over-the-counter products, without first
        consulting with the investigator.