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Pharmacokinetic Comparison of Multiple Formulations of Topiramate and Phentermine in Obese Adults
This study has been completed.
Sponsored by: VIVUS, Inc.
Information provided by: VIVUS, Inc.
ClinicalTrials.gov Identifier: NCT00518466
  Purpose

The primary objective of this study is to describe the single- and multiple-dose pharmacokinetic profiles of two novel formulations of topiramate and commercially available immediate release topiramate, all dosed with immediate release phentermine.


Condition Intervention Phase
Obesity
Drug: topiramate
Drug: phentermine
Phase I

MedlinePlus related topics: Obesity
Drug Information available for: Topiramate Phentermine Phentermine hydrochloride
U.S. FDA Resources
Study Type: Interventional
Study Design: Treatment, Randomized, Open Label, Active Control, Parallel Assignment, Pharmacokinetics/Dynamics Study
Official Title: A Phase Ib, Open Label, Parallel-Design Single- and Multiple-Dose Study Comparing Modified Release Topiramate Formulations to Immediate Release Formulations of Topiramate Dosed in Combination With Immediate Release Phentermine in Obese Adults

Further study details as provided by VIVUS, Inc.:

Primary Outcome Measures:
  • Pharmacokinetic parameters [ Time Frame: One month ]

Estimated Enrollment: 64
Study Start Date: July 2007
Study Completion Date: December 2007
Primary Completion Date: September 2007 (Final data collection date for primary outcome measure)
Intervention Details:
    Drug: topiramate
    modified-release capsules
    Drug: phentermine
    immediate-release capsules
    Drug: topiramate
    immediate-release tablets
    Drug: phentermine
    immediate-release tablets
  Eligibility

Ages Eligible for Study:   19 Years to 65 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Obese adults
  • Body mass index between 30.0 and 42.0 kg/m2 (inclusive)
  • Medically healthy with no clinically significant results of screening exams

Exclusion Criteria:

  • History or presence of significant cardiovascular, pulmonary, hepatic, renal, gastrointestinal, endocrine, immunologic, dermatologic, neurologic, or psychiatric disease
  • History of glaucoma or increased intraocular pressure
  • History of kidney stones
  • Cholelithiasis or cholecystitis within 6 months
  • Cardiovascular event within 6 months
  • Obesity of known genetic or endocrine origin
  • Recent weight instability
  • Use of Very Low Calorie diet or participation in organized weight loss program within 3 months
  • Systolic blood pressure > 150 or diastolic > 95 mm Hg
  • Positive urine drug or alcohol screen
  • Positive serology for HIV, HBV, or HCV
  • History of alcoholism or drug abuse
  • History of significant psychiatric disease, current depression of moderate or greater severity, any history of suicidal ideation
  • Hypersensitivity to study drug or related compounds
  • Use of prescription or OTC medication other than hormonal contraceptive within 14 days prior to first dosing with study drug
  • Blood donation or significant blood loss within 56 days or plasma donation within 7 days prior to first dosing with study drug
  • Women who are pregnant or lactating
  • Hemoglobin < 12 g/dL
  • Use of tobacco or nicotine-containing products within 6 months
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00518466

Locations
United States, California
VIVUS, Inc.
Mountain View, California, United States, 94040
Sponsors and Collaborators
VIVUS, Inc.
Investigators
Study Director: Charles H Bowden, MD VIVUS, Inc.
  More Information

Study ID Numbers: OB-102 / AA42851
Study First Received: August 16, 2007
Last Updated: April 2, 2008
ClinicalTrials.gov Identifier: NCT00518466  
Health Authority: United States: Food and Drug Administration

Keywords provided by VIVUS, Inc.:
Obesity

Study placed in the following topic categories:
Body Weight
Signs and Symptoms
Obesity
Topiramate
Nutrition Disorders
Overweight
Overnutrition
Phentermine

Additional relevant MeSH terms:
Neurotransmitter Agents
Adrenergic Agents
Molecular Mechanisms of Pharmacological Action
Sympathomimetics
Physiological Effects of Drugs
Central Nervous System Stimulants
Protective Agents
Neuroprotective Agents
Pharmacologic Actions
Anti-Obesity Agents
Autonomic Agents
Therapeutic Uses
Appetite Depressants
Peripheral Nervous System Agents
Central Nervous System Agents
Anticonvulsants

ClinicalTrials.gov processed this record on January 15, 2009