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Effect of Orlistat in Body Composition

Primary Purpose

Obesity, Overweight

Status
Completed
Phase
Phase 4
Locations
International
Study Type
Interventional
Intervention
Orlistat
Placebo
Sponsored by
GlaxoSmithKline
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Obesity focused on measuring overweight, orlistat, body composition

Eligibility Criteria

18 Years - 60 Years (Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • Aged 18-60 years inclusive
  • Body Mass Index (BMI): BMI in the range of 25.0-34.9 kg/m^2
  • Waist circumference:

Females: > 35 inches Males: > 40 inches

  • Diet:

    1. Normal eating habits, consuming 3 meals a day (breakfast, lunch and dinner)
    2. Willing to follow a hypocaloric diet during the study to achieve weight loss
    3. Willing to take a daily multivitamin for the duration of the study.
  • General Health:Good general health with (in the opinion of the investigator) no clinically significant and relevant abnormalities of medical history or physical examination

Exclusion Criteria:

  • Pregnant and/ or Breast-feeding women
  • Diet/Exercise:Currently on a special diet or who cannot fulfill the dietary requirements of the study.
  • Smoking History:a) Smoking cessation within the past 6 months b) Current Smokers
  • Allergy/Intolerance: Known or suspected intolerance or hypersensitivity to the study materials and study foods (or closely related compounds) or any of their stated ingredients.
  • Medication:

    a) Currently taking medication for weight loss or appetite control. b) Previous Xenical® (orlistat) or alli® use within 3 months of screening date c) Currently taking medication or supplements that influence intestinal transit time and other stool formation parameters or influences cramping (e.g., Anticholinergics (such as atropine) or cholinergics (such as physostigmine), phenothiazines, tricyclic antidepressants, opioid analgesics (including loperamide), calcium channel antagonists, clonidine, cisapride, octreotide. Also, any laxative or antidiarrheal product). d) Currently taking or withdrawn during the past 6 months any drugs with significant impact on body weight (e.g. serotoninergically acting drugs, antidepressants, central adrenergically acting drugs, drugs inhibiting digestion and absorption, appetite suppressants, metformin) e) Currently taking Cyclosporine, Warfarin or Amiodarone HCL

  • Disease/Surgery:

    a) History of gastrointestinal disease (e.g., irritable bowel syndrome, diarrhea, inflamed bowel, steatorrhea/fat malabsorption, hemorrhoids, incontinence, pancreatitis). b) History of psychological disorder, including eating disorders such as anorexia nervosa and bulimia c) History of neurological disorder (e.g. seizures, parkinson's disease, Alzheimer's disease) d) History of hypo/hyperthyroidism unless euthyroid and controlled on a stable dose of medication for at least 6 months. e) History of surgery for weight loss f) Uncontrolled hypertension g) Heart Disease h) Diabetes Mellitus (Type 1 and 2) (Fasting Blood Glucose >126 mg/dL)

  • Participant has a known history of panic attacks and/or claustrophobia or other conditions precluding safe EchoMRI, CT or other scanning modalities according to local guidelines, (e.g., pacemaker, hearing aid, metallic body piercing and/or other metal implants) or in the opinion of the Investigator the participant exceeds size limitations for the instruments.
  • Participant has had a weight loss or gain of greater than or equal to 3 kg in the 3 months prior to screening.

Sites / Locations

  • Pennington Biomedical Research Center
  • Duke Clinical Research Unit
  • Sahlgrenska Academy

Arms of the Study

Arm 1

Arm 2

Arm Type

Active Comparator

Placebo Comparator

Arm Label

Orlistat

Placebo

Arm Description

Orlistat 60 milligram (mg) capsules to be consumed orally with each meal 3 times per day

Placebo to match Orlistat 60 mg capsules to be consumed orally with each meal 3 times per day.

Outcomes

Primary Outcome Measures

Change From Baseline to Week 24 in Abdominal VAT Mass
VAT was measured by the computed tomography (CT) scan.

Secondary Outcome Measures

Change From Baseline to Week 12 in Abdominal VAT Mass
Abdominal VAT mass from baseline to week 12 was measured by CT scan.
Change From Baseline to Week 24 in Body Weight
Participants were weighed at least twice until two consecutive measurements were within 0.5 kg of each other and the average of the two measurements was recorded.
Change From Baseline to Week 24 in Total Fat Mass
Change in total fat mass was calculated from an average of three measurements at each visit from Echo Magnetic Resonance Imaging (EchoMRI).
Change From Baseline to Week 24 in Percentage Body Fat
Body fat was assessed through Bioelectrical Impedance Analysis (BIA).
Change From Baseline to Week 24 in Waist Circumference
Waist circumference was measured against the skin, without interference from clothing, at the level midway between the lateral lower rib margin and the iliac crest in standing position.
Change From Baseline to Week 24 in Percentage Liver Fat
For Liver fat, Intrahepatic lipids (IHL) were measured by Magnetic Resonance Spectroscopy (MRS).
Change From Baseline to Week 24 in Liver Fat
The liver fat was measured by CT scan in Hounsfield Units (HU).
Change From Baseline to Week 24 in Total Calories Expended for Physical Activity
Measurement of physical activity from Paffenbarger questionnaire. The number of caloried expended was representation of activity level: Higher calorie counts indicate higher activity
Change From Baseline to Week 24 in Quality of Life (QoL) Scores.
QoL scores were measured using an Impact of Weight Quality of Life (IWQoL) Questionnaire, which scored the responses at a scale of 1 to 5(1, never true, to 5, always true): QoL scales for physical function, self-esteem, sexual life, public distress, and work were evaluated, and summarized in a total score. A higher value indicated a better quality of life.
Selectivity Index at Week 24
The selectivity index (SI) was used as a measure of orlistat's ability to target abdominal VAT loss compared to total adipose tissue lost. SI was calculated using the following equation: Mean % change in VAT divided by Mean % change in total fat mass.

Full Information

First Posted
September 11, 2008
Last Updated
February 28, 2013
Sponsor
GlaxoSmithKline
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1. Study Identification

Unique Protocol Identification Number
NCT00752726
Brief Title
Effect of Orlistat in Body Composition
Official Title
The Effects of Weight Reduction With Orlistat vs. Placebo on Changes in Body Composition
Study Type
Interventional

2. Study Status

Record Verification Date
February 2013
Overall Recruitment Status
Completed
Study Start Date
September 2008 (undefined)
Primary Completion Date
July 2009 (Actual)
Study Completion Date
July 2009 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
GlaxoSmithKline

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
The purpose of this study is to determine if a 24 week weight loss program with orlistat 60 mg will produce greater changes in body composition compared to placebo.
Detailed Description
Large amounts of VAT (adipose tissue surrounding the viscera of the organs), is known to be associated with increased risk of heart disease and diabetes. Orlistat (tetrahydrolipstatin or THL) inhibits gastrointestinal lipase and reduces the absorption of dietary fat. The purpose of this study is to to determine if a 24 week weight loss program with orlistat 60 mg would produce greater changes in adipose tissue depots (specifically VAT) compared to placebo. This study will use the Echo MRI technology across multiple sites to measure total fat mass. EchoMRI is a non invasive method ideally suited for studies which track changes in human body composition over time, with measuring times of less than 3 minutes and no radiation exposure.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Obesity, Overweight
Keywords
overweight, orlistat, body composition

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 4
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
131 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Orlistat
Arm Type
Active Comparator
Arm Description
Orlistat 60 milligram (mg) capsules to be consumed orally with each meal 3 times per day
Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
Placebo to match Orlistat 60 mg capsules to be consumed orally with each meal 3 times per day.
Intervention Type
Drug
Intervention Name(s)
Orlistat
Intervention Description
Weight loss treatment
Intervention Type
Drug
Intervention Name(s)
Placebo
Intervention Description
Inactive
Primary Outcome Measure Information:
Title
Change From Baseline to Week 24 in Abdominal VAT Mass
Description
VAT was measured by the computed tomography (CT) scan.
Time Frame
Baseline to week 24
Secondary Outcome Measure Information:
Title
Change From Baseline to Week 12 in Abdominal VAT Mass
Description
Abdominal VAT mass from baseline to week 12 was measured by CT scan.
Time Frame
Baseline to week 12
Title
Change From Baseline to Week 24 in Body Weight
Description
Participants were weighed at least twice until two consecutive measurements were within 0.5 kg of each other and the average of the two measurements was recorded.
Time Frame
Baseline to week 24
Title
Change From Baseline to Week 24 in Total Fat Mass
Description
Change in total fat mass was calculated from an average of three measurements at each visit from Echo Magnetic Resonance Imaging (EchoMRI).
Time Frame
Baseline to week 24
Title
Change From Baseline to Week 24 in Percentage Body Fat
Description
Body fat was assessed through Bioelectrical Impedance Analysis (BIA).
Time Frame
Baseline to week 24
Title
Change From Baseline to Week 24 in Waist Circumference
Description
Waist circumference was measured against the skin, without interference from clothing, at the level midway between the lateral lower rib margin and the iliac crest in standing position.
Time Frame
Baseline to week 24
Title
Change From Baseline to Week 24 in Percentage Liver Fat
Description
For Liver fat, Intrahepatic lipids (IHL) were measured by Magnetic Resonance Spectroscopy (MRS).
Time Frame
Baseline to week 24
Title
Change From Baseline to Week 24 in Liver Fat
Description
The liver fat was measured by CT scan in Hounsfield Units (HU).
Time Frame
Baseline to week 24
Title
Change From Baseline to Week 24 in Total Calories Expended for Physical Activity
Description
Measurement of physical activity from Paffenbarger questionnaire. The number of caloried expended was representation of activity level: Higher calorie counts indicate higher activity
Time Frame
Baseline to week 24
Title
Change From Baseline to Week 24 in Quality of Life (QoL) Scores.
Description
QoL scores were measured using an Impact of Weight Quality of Life (IWQoL) Questionnaire, which scored the responses at a scale of 1 to 5(1, never true, to 5, always true): QoL scales for physical function, self-esteem, sexual life, public distress, and work were evaluated, and summarized in a total score. A higher value indicated a better quality of life.
Time Frame
Baseline to week 24
Title
Selectivity Index at Week 24
Description
The selectivity index (SI) was used as a measure of orlistat's ability to target abdominal VAT loss compared to total adipose tissue lost. SI was calculated using the following equation: Mean % change in VAT divided by Mean % change in total fat mass.
Time Frame
Baseline to week 24

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
60 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Aged 18-60 years inclusive Body Mass Index (BMI): BMI in the range of 25.0-34.9 kg/m^2 Waist circumference: Females: > 35 inches Males: > 40 inches Diet: Normal eating habits, consuming 3 meals a day (breakfast, lunch and dinner) Willing to follow a hypocaloric diet during the study to achieve weight loss Willing to take a daily multivitamin for the duration of the study. General Health:Good general health with (in the opinion of the investigator) no clinically significant and relevant abnormalities of medical history or physical examination Exclusion Criteria: Pregnant and/ or Breast-feeding women Diet/Exercise:Currently on a special diet or who cannot fulfill the dietary requirements of the study. Smoking History:a) Smoking cessation within the past 6 months b) Current Smokers Allergy/Intolerance: Known or suspected intolerance or hypersensitivity to the study materials and study foods (or closely related compounds) or any of their stated ingredients. Medication: a) Currently taking medication for weight loss or appetite control. b) Previous Xenical® (orlistat) or alli® use within 3 months of screening date c) Currently taking medication or supplements that influence intestinal transit time and other stool formation parameters or influences cramping (e.g., Anticholinergics (such as atropine) or cholinergics (such as physostigmine), phenothiazines, tricyclic antidepressants, opioid analgesics (including loperamide), calcium channel antagonists, clonidine, cisapride, octreotide. Also, any laxative or antidiarrheal product). d) Currently taking or withdrawn during the past 6 months any drugs with significant impact on body weight (e.g. serotoninergically acting drugs, antidepressants, central adrenergically acting drugs, drugs inhibiting digestion and absorption, appetite suppressants, metformin) e) Currently taking Cyclosporine, Warfarin or Amiodarone HCL Disease/Surgery: a) History of gastrointestinal disease (e.g., irritable bowel syndrome, diarrhea, inflamed bowel, steatorrhea/fat malabsorption, hemorrhoids, incontinence, pancreatitis). b) History of psychological disorder, including eating disorders such as anorexia nervosa and bulimia c) History of neurological disorder (e.g. seizures, parkinson's disease, Alzheimer's disease) d) History of hypo/hyperthyroidism unless euthyroid and controlled on a stable dose of medication for at least 6 months. e) History of surgery for weight loss f) Uncontrolled hypertension g) Heart Disease h) Diabetes Mellitus (Type 1 and 2) (Fasting Blood Glucose >126 mg/dL) Participant has a known history of panic attacks and/or claustrophobia or other conditions precluding safe EchoMRI, CT or other scanning modalities according to local guidelines, (e.g., pacemaker, hearing aid, metallic body piercing and/or other metal implants) or in the opinion of the Investigator the participant exceeds size limitations for the instruments. Participant has had a weight loss or gain of greater than or equal to 3 kg in the 3 months prior to screening.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
GSK Clinical Trials
Organizational Affiliation
GlaxoSmithKline
Official's Role
Study Director
Facility Information:
Facility Name
Pennington Biomedical Research Center
City
Baton Rouge
State/Province
Louisiana
ZIP/Postal Code
70808
Country
United States
Facility Name
Duke Clinical Research Unit
City
Durham
State/Province
North Carolina
ZIP/Postal Code
27710
Country
United States
Facility Name
Sahlgrenska Academy
City
Goteborg
State/Province
West Gothland
ZIP/Postal Code
405 30
Country
Sweden

12. IPD Sharing Statement

Citations:
PubMed Identifier
21720429
Citation
Smith SR, Stenlof KS, Greenway FL, McHutchison J, Schwartz SM, Dev VB, Berk ES, Kapikian R. Orlistat 60 mg reduces visceral adipose tissue: a 24-week randomized, placebo-controlled, multicenter trial. Obesity (Silver Spring). 2011 Sep;19(9):1796-803. doi: 10.1038/oby.2011.143. Epub 2011 Jun 30.
Results Reference
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Effect of Orlistat in Body Composition

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