Actos Now for Prevention of Diabetes (ACT NOW)

The recruitment status of this study is unknown because the information has not been verified recently.
Verified September 2005 by Texas Diabetes Institute.
Recruitment status was  Active, not recruiting
University of Texas
Takeda Pharmaceuticals North America, Inc.
Information provided by:
Texas Diabetes Institute Identifier:
First received: September 14, 2005
Last updated: May 24, 2010
Last verified: September 2005

September 14, 2005
May 24, 2010
January 2004
Not Provided
Prevention of Type 2 Diabetes
Same as current
Complete list of historical versions of study NCT00220961 on Archive Site
  • Improvement in glycemic control
  • Change in insulin secretion
  • Change in insulin sensitivity
  • Improvement in cardiovascular risk factors
  • Change in blood pressure
  • Change in atherosclerosis
  • Occurrence of cardiovascular morbidity and mortality
  • Change in body composition
  • Change in adipocytokines
  • Change in plasma sex steroids
  • Change in renal function
  • Adverse events
Same as current
Not Provided
Not Provided
Actos Now for Prevention of Diabetes (ACT NOW)
Actos Now for Prevention of Diabetes (ACT NOW)
The purpose of this study is to examine whether pioglitazone versus placebo can reduce the conversion rate of impaired glucose tolerance (IGT) to type 2 diabetes mellitus
IGT is a prediabetic state. If IGT can be prevented from progressing to overt diabetes, the hyperglycemia-related complications of this devastating disease can be prevented. Subjects with IGT will be identified with an oral glucose tolerance test (OGTT). Eligible subjects also will have a measurement of first phase insulin secretion and insulin sensitivity using the frequently sampled intravenous glucose tolerance test (FSIVGTT) and carotid intimal media thickness using carotid ultrasound. Following these measurements subjects will be randomized to receive pioglitazone or placebo and they will return every 3 months for determination of fasting plasma glucose (FPG) concentration and interim medical history. Recruitment will take place over 15 months. From the time that the recruitment period ends, subjects will be followed for a total of 24 months on pioglitazone or placebo. The OGTT will be repeated at 15,27, and 39 months, or if the FPG is ≥ 126 mg/dl on the 3-month follow up visits. If the diagnosis of diabetes is established before month 39 or at month 39, the FSIVGTT and carotid ultrasound will be repeated. At 39 months, subjects will be washed out of pioglitazone or placebo and the OGTT, FSIVGTT, and carotid ultrasound will be repeated at month 45.
Phase 3
Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double-Blind
Primary Purpose: Prevention
  • Impaired Glucose Tolerance
  • Type 2 Diabetes
Drug: Pioglitazone
Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Active, not recruiting
May 2007
Not Provided

Inclusion Criteria:

  • Men and women
  • All ethnic groups
  • 18 years of age and older
  • Impaired glucose tolerance by glucose tolerance test (fasting glucose 95-125 mg/dl and 2 hr glucose of 140-199 mg/dl)
  • At least one of the following:

    • One or more components of the insulin resistance syndrome (HDL < 40 mg/dl in females and <35 mg/dl in males, fasting triglycerides > 150 mg/dl, blood pressure > 135/85 mmHg, BMI > 24 kg/m2, waist circumference > 102 cm in men and > 88 cm in women)
    • One or more first degree relatives with type 2 diabetes
    • History of gestational diabetes
    • Polycystic ovarian disease
    • Minority ethnic background (Mexican American, African American, Asian and Pacific Islanders, Native American)

Exclusion Criteria:

  • Type 2 diabetes
  • Previously treated with thiazolidinediones (ever) or metformin (within one year)
  • Previously treated with a sulfonylurea, a meglitinide, an alpha glucosidase inhibitor for more than a week within last year or within the 3 months prior to randomization
  • Previously treated with insulin (other than during pregnancy) for more than one week within the last year or within the 3 months prior to randomization
  • Cardiovascular disease
  • Hospitalization for treatment of heart disease or stroke in past 6 months
  • New York Heart Association Functional Class > 2
  • Left bundle branch block or third degree AV block
  • Aortic stenosis
  • SBP > 180 mmHg or DBP > 105 mmHg
  • Renal disease
  • Anemia
  • Hepatitis
  • GI diseases (pancreatitis, inflammatory bowel disease)
  • Recent or significant abdominal surgery
  • Advanced pulmonary disease
  • Chronic infections
  • Weight loss > 10% in past 6 months
  • Pregnancy and childbearing
  • Major psychiatric disorders
  • Excessive alcohol intake
  • Thiazide use > 25 mg per day
  • Non-selective beta blockers
  • Niacin
  • Systemic glucocorticoids
  • Weight loss or weight gain medication
  • Thyroid disease-suboptimally treated
  • Active endocrine diseases (Cushing's, acromegaly)
  • Plasma triglycerides over 400 mg/dl (despite treatment)
  • History bladder cancer
  • Hematuria
18 Years and older
Contact information is only displayed when the study is recruiting subjects
United States
Not Provided
Not Provided
Texas Diabetes Institute
  • University of Texas
  • Takeda Pharmaceuticals North America, Inc.
Principal Investigator: Ralph A. DeFronzo, M.D. Texas Diabetes Institute
Texas Diabetes Institute
September 2005

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP