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A Study of the Safety and Efficacy of Topiramate in the Treatment of Obese, Type 2 Diabetes Patients on a Controlled Diet

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT00231530
Recruitment Status : Completed
First Posted : October 4, 2005
Last Update Posted : June 8, 2011
Sponsor:
Information provided by:
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.

Tracking Information
First Submitted Date  ICMJE September 30, 2005
First Posted Date  ICMJE October 4, 2005
Last Update Posted Date June 8, 2011
Study Start Date  ICMJE January 2001
Primary Completion Date Not Provided
Current Primary Outcome Measures  ICMJE
 (submitted: September 30, 2005)
The percent change in body weight and change in Hemoglobin A1c from enrollment to Week 60.
Original Primary Outcome Measures  ICMJE Same as current
Change History
Current Secondary Outcome Measures  ICMJE
 (submitted: September 30, 2005)
Change from enrollment or baseline to Week 60 in BMI, waist circumference, glucose tolerance, lipid profile; safety measures, such as adverse events, throughout study.
Original Secondary Outcome Measures  ICMJE Same as current
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE A Study of the Safety and Efficacy of Topiramate in the Treatment of Obese, Type 2 Diabetes Patients on a Controlled Diet
Official Title  ICMJE A Multicenter, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Assess the Safety and Efficacy of Topiramate in the Treatment of Obese, Type 2 Diabetic Patients on a Controlled Diet
Brief Summary The purpose of this study is to determine the efficacy and safety of topiramate compared with placebo in obese, Type 2 diabetic patients on a controlled diet.
Detailed Description Topiramate is not approved for the treatment of obesity. This is a randomized, double-blind, placebo-controlled study to evaluate the efficacy and safety of topiramate in obese, diet-controlled, type 2 diabetic patients. Patients are randomized to receive either topiramate or placebo. After a 5 week pre-enrollment phase followed by a 6 week run-in phase, patients in the topiramate group start an 8-week titration phase to reach the assigned dose of topiramate, either 96 or 192 mg daily. Treatment continues for 1 year. Assessments of effectiveness include percent change in body weight, hemoglobin type A1c [HbA1c] levels, Body Mass Index [BMI], the numbers and proportion of 5% and 10% weight loss responders, glucose tolerance, waist and hip circumferences, changes in the mass of left ventricle of the heart, blood pressures, and fasting lipid profiles. Safety evaluations, including incidence of adverse events, vital signs, clinical laboratory values, and electrocardiograms [ECGs], are monitored throughout the study. The study hypothesis is that topiramate, combined with controlled diet, will be effective in weight reduction and controlling blood sugar level and is well tolerated. During the initial 8 weeks, the oral doses of either a matching placebo or topiramate will be gradually increased to the target doses (96 milligrams[mg] or 192mg daily); the dose will be maintained for 1 year.
Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 3
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Condition  ICMJE
  • Obesity
  • Diabetes Mellitus, Type 2
  • Diabetes Mellitus, Adult-Onset
Intervention  ICMJE Drug: topiramate
Study Arms  ICMJE Not Provided
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Completed
Actual Enrollment  ICMJE
 (submitted: June 18, 2009)
541
Original Enrollment  ICMJE
 (submitted: September 30, 2005)
600
Actual Study Completion Date  ICMJE May 2002
Primary Completion Date Not Provided
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • Body Mass Index >= 27 and < 50
  • Diagnosis of Type 2 diabetes according to either Swedish guideline or the American Diabetes Association (ADA) criteria
  • HbA1c <10.5% at enrollment
  • No previous oral antidiabetic medication or insulin therapy
  • Stable body weight
  • Female patients must be postmenopausal for at least 1 year, surgically incapable of childbearing, practicing an acceptable method of contraception (requires negative pregnancy test)

Exclusion Criteria:

  • Known contraindication or hypersensitivity to topiramate
  • Fasting plasma glucose (FPG) >= 13.1 millimolesl/liter (240 milligrams/deciliter) at baseline, Visit 4 (Week 0)
  • HBA1c of >10.5% at enrollment
  • History of severe recurrent hypoglycemic episodes prior to study entry
  • Use of any systemic corticosteroids within 30 days of enrollment
  • Diagnosed Type 1 diabetes
  • History of significant cardiovascular disease, uncontrolled thyroid disease, or kidney stones
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years to 75 Years   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Not Provided
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT00231530
Other Study ID Numbers  ICMJE CR003712
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Not Provided
Study Sponsor  ICMJE Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Study Director: Johnson & Johnson Pharmaceutical Research & Development, L.L. C. Clinical Trial Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
PRS Account Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Verification Date April 2010

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