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Investigation of the effect of a single dose of stimulant medication (dexamphetamine 10mg or methylphenidate 20mg) on appetite and on fasting and postprandial levels of insulin, glucose, leptin and ghrelin in healthy adult volunteers.

Recruiting
Conditions
Appetite suppression on stimulant medication. This is the presumed reason for the weight loss that usually occurs when children with attention deficit hyperactivity disorder (ADHD) are treated with dexamphetamine or methylphenidate.
Healthy adult volunteers.
Mental Health - Other mental health disorders
Registration Number
ACTRN12607000138482
Lead Sponsor
Chief investigator Dr Alison Poulton
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
Recruiting
Sex
All
Target Recruitment
12
Inclusion Criteria

Fit and healthy

Exclusion Criteria

Current treament of medical condition, previous regular use of stimulant medication, history of substance abuse, BMI>30.

Study & Design

Study Type
Interventional
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Insulin levels [At time 0 (fasted) and at 3 hours (after food). ];Glucose levels [At time 0 (fasted) and at 3 hours (after food). ];Leptin levels [At time 0 (fasted) and at 3 hours (after food). ];Ghrelin levels [At time 0 (fasted) and at 3 hours (after food). ];Amount of food consumed [At 1.5 - 2 hours];Effect of medication on performance of auditory vigilance test[At 2 - 3.5 hours]
Secondary Outcome Measures
NameTimeMethod
Subjective effect of medication on appetite[At 0, 1, 2 and 3 hours]
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