Obesity Clinical Trial - B181 Metobes-III: Weight Loss Maintenance of a

Status Completed

Clinical Trial Summary

To investigate the 5-hour acute effect on energy expenditure, substrate oxidation and ad libitum food intake after intake of the Metobes-compound (green tea extract, capsaicin, tyrosine, caffeine). Furthermore, to investigate if the effect of the Metobes-compound can be inhibited by blocking the β-adrenergic receptors.

The effect of the Metobes-compound will be investigated by:

1. 5-hour energy expenditure and respiratory quotient (ventilated hood).

2. 5-h change in blood pressure and heart rate

3. 5-h change in sympathetic/parasympathetic ratio.

4. Ad libitum energy intake.

5. Self-reported postprandiel appetite sensations (VAS).

Clinical Trial Description

Subjects 22 healthy Danish overweight to obese men (BMI between 25 and 35 kg/m2), 18 to 50 years of age. All subjects must be weight stable (within  3-kg) 2 months prior to study inclusion, non-smoking, non-athletic and have no daily use of medication.

Method

The study is designed as a 4-way crossover, randomised, placebo controlled, double-blind study. Each treatment will be separated by >1-week washout period. The treatments will consist of:

1. Bioactive Metobes compound (green tea extract, tyrosine, caffeine and capsaicin) without calcium together with 5 mg propranolol.

2. Bioactive Metobes compound (green tea extract, tyrosine, caffeine and capsaicin) without calcium together with 10 mg propranolol.

3. Bioactive Metobes compound (green tea extract, tyrosine, caffeine and capsaicin) without calcium together with a placebo tablet for propranolol (microcrystalline cellulose).

4. Placebo for the Metobes compound (microcrystalline cellulose) together with a placebo tablet for propranolol (microcrystalline cellulose).

On each test day body weight and composition will be assessed. All subjects will undergo a 5-h post dose assessment of energy expenditure by indirect calorimetry in a ventilated hood. Subjective appetite sensations, ECG and dual measures of blood pressure/heart rate will be assessed every 30 minutes. After completed respiratory measurements the subjects will be served an ad libitum lunch meal (pasta salad).

All subjects shall collect all urine excreted during the respiratory measurements. Urine samples will be analyzed for nitrogen content and content of catecholamines. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double-Blind, Primary Purpose: Prevention

Related Conditions & MeSH terms

Obesity

Clinical Trial Details

NCT number	NCT00302263
Study type	Interventional
Source	University of Copenhagen
Contact
Status	Completed
Phase	Phase 2/Phase 3
Start date	January 2005
Completion date	April 2005

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

B181 Metobes-III: Weight Loss Maintenance of a New Bioactive Compound (Metobes-Long)

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms