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Glucocorticoid Induced Whole Body Catabolisme

Phase 2
Completed
Conditions
Whole Body Catabolisme Induced by Glucocorticoids
Interventions
Drug: Calcium Supplement
Drug: Glucocorticoids
Registration Number
NCT01762540
Lead Sponsor
University of Aarhus
Brief Summary

The main purpose of the trial is to advance our knowledge on the possible mechanism underlying the catabolic effects of long-term treatment with glucocorticoid.

Detailed Description

Long-term treatment with glucocorticoid induces a general state of catabolism and increases insulin resistance. The underlying mechanisms are insufficiently characterized, however glucocorticoid induced changes of Growth Hormone (GH) and the Insulin-like growth factor I (IGF-I) appear to be of outmost importance.

We wish to investigate the mechanism behind glucocorticoid induced catabolism and insulin resistance.

More specific we wish to investigate:

* Whether glucocorticoid induces IGF-I inhibiting substances in serum or interstitial fluid that block the ability of IGF-I to phosphorylate its receptor in vitro

* Whether glucocorticoid inhibits intracellular IGF-I and insulin signaling in vitro and in vivo

* The mechanisms by which growth hormone counteracts the CG-mediated inhibition of IGF-I action

Recruitment & Eligibility

Status
COMPLETED
Sex
Male
Target Recruitment
19
Inclusion Criteria
  • signed and dated informed consent
  • healthy subjects
  • sex: male
  • age 20-30 years
  • BMI 19-26 kg/m2
  • normal HbA1c
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Exclusion Criteria
  • suspected og known allergy to the trial drug or similar medications.
  • known current illness including diabetes mellitus, ischemic heart disease or cardiac arrhythmia.
  • Daily drug intake (excluding Over-the-Counter medicines).
  • Known or previous mental illness
  • Current participation or previous participation in experiments using ionizing radiation for a year prior to inclusion in this study.
  • Participation in a larger X-ray examinations in trial period.
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Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
Calcium supplementCalcium SupplementCapsule with tablet of calclium supplement
GlucocorticoidsGlucocorticoidsCapsule with tablet of Prednisolone 37,5mg
Primary Outcome Measures
NameTimeMethod
Insulin-like Growth Factor (IGF)-I profiles of subjects before and after prednisolone-treatment.day 1, 3 and 5

Blood-test before (day 1) during (day 3) and at the end (day 5) of placebo/prednisolone treatment.

Secondary Outcome Measures
NameTimeMethod
Intracellular signaling of IGF-I under the influence/abscence of prednisolone.day 5

Tissue biopsy on day 5.

Insulin sensitivity under the influence/abscence of prednisolone.Day 5

Hyperinsulinemic euglycemic clamp on day 5.

Trial Locations

Locations (1)

Medical Research Laboratory, Clinical Institute of Medicine, Aarhus University Hospital

🇩🇰

Aarhus, Denmark

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