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CompletedNCT00236639Updated Apr 28, 2010

A Study on Efficacy and Safety of Topiramate in the Treatment of Patients With Obesity

A Phase 3 interventional study of topiramate in Obesity, sponsored by Johnson & Johnson Pharmaceutical Research & Development, L.L.C.. Completed. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2010-04-28.

Sponsored by Johnson & Johnson Pharmaceutical Research & Development, L.L.C. · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
1,293
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

The purpose of this study is to compare the efficacy and safety of topiramate (96, 192, and 256mg daily) with placebo in long-term treatment of obesity.

Read the detailed description

Topiramate is not approved for the treatment of obesity. This double-blind, placebo-controlled study assesses long-term effectiveness and safety of topiramate in patients with obesity. After completing 6 weeks of run-in phase (a single-blind placebo-treatment phase during which patients begin non-pharmacological therapy), patients will be randomized to receive either topiramate or placebo. Topiramate group will receive 16mg of topiramate and the dose will be titrated over 8 weeks. Patients will then receive two years of treatment. Effectiveness will be evaluated by body weight, Body Mass Index (BMI), anthropometric measurements (waist circumference, hip circumference, waist/hip ratio), fasting lipid profile, fasting plasma glucose, HbA1c, fasting uric acid, fasting insulin, blood pressures, body fat compositions, mass of left ventricle of the heart (as measured by echocardiography), and Health Related Quality of Life scores. Safety evaluation (incidence of adverse events, laboratory tests, electrocardiogram, vital signs) will be performed throughout the study. The study hypothesis is that topiramate will be effective in achieving and maintaining weight reduction in obese patients. During the initial 8 weeks, the doses of topiramate or placebo will be gradually increased to the target dose (either 96mg, 192mg, or 256mg daily by mouth) and the doses will be maintained for 2 years.

02

Conditions studied

  • Obesity

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Keywords

  • Obesity
  • Hypertension
  • Hyperlipidemia
  • Type 2 Diabetes Mellitus
  • Body Mass Index
03

In context

Obesity

6,296 studies on the registry are indexed under Obesity; 1,692 are open to participants now.

This study's enrollment of 1,293 is above the median of 78 across 4,878 interventional studies indexed under Obesity.

Browse Obesity studies →

Lead sponsor

Johnson & Johnson Pharmaceutical Research & Development, L.L.C. is the lead sponsor of 458 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Body Mass Index (BMI) >= 30 and \< 50
  • BMI >= 27 and \< 50 if patient has controlled hypertension or abnormal blood lipids
  • Stable weight
  • Female patients must be postmenopausal for at least 1 year, surgically incapable of childbearing, practicing abstinence, or practicing an acceptable method of contraception (requires negative pregnancy test)

Exclusion criteria

Exclusion Criteria:

  • Known contraindication, or hypersensitivity to topiramate
  • A diagnosis of diabetes (except those diagnosed during the enrollment if no medications are needed)
  • History or evidence of clinically significant liver, disease, cardiovascular disease, uncontrolled hypertension or high thyroid levels
  • History of obesity with known cause
  • History of weight loss surgery or liposuction
  • History of malignancy within last 5 years
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double
Enrollment
1,293 participants (actual)

Interventions

  • Drugtopiramate
06

What researchers measure

Primary outcomes

  1. The percent change in body weight from the baseline (randomization) to Week 60 (after one year of maintenance therapy).

Secondary outcomes

  1. Changes from either baseline to Week 60 and/or Week 112, or enrollment to Week 60 and/or Week 112 in absolute body weight, Body Mass Index (BMI), body measurements, fasting lipid profile.

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Wilding J, Van Gaal L, Rissanen A, Vercruysse F, Fitchet M; OBES-002 Study Group. A randomized double-blind placebo-controlled study of the long-term efficacy and safety of topiramate in the treatment of obese subjects. Int J Obes Relat Metab Disord. 2004 Nov;28(11):1399-410. doi: 10.1038/sj.ijo.0802783. PubMed 15486569 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 28, 2010, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00236639
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
First posted
Oct 12, 2005
Start date
Jul 2000
Completion
Jun 2002
Last update
Apr 28, 2010

Study contacts

Johnson & Johnson Pharmaceutical Research & Development, L.L. C. Clinical Trial
study director · Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2010. You cannot join it, but the record below documents what was studied.

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