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Effects of Fludrocortisone and Hydrocortisone in Healthy Volunteers With Aldosterone Induced Suppression

Registration Number
NCT00673270
Lead Sponsor
Rennes University Hospital
Brief Summary

Septic shock (associated with relative adrenal insufficiency) is characterized by decreased arterial responsiveness to catecholamines. The association of hydrocortisone and fludrocortisone has demonstrated an improvement in survival in septic shock patients. If hydrocortisone has shown to increase vascular responsiveness, the role of fludrocortisone remains to be elucidated. The purpose of our study is to investigate the effect of a physiological dose of fludrocortisone and/or hydrocortisone on phenylephrine-mean arterial pressure dose-response relationship in healthy volunteers with aldosterone suppression induced by intravenous sodium loading.

Detailed Description

Not available

Recruitment & Eligibility

Status
TERMINATED
Sex
Male
Target Recruitment
13
Inclusion Criteria
  • Men between 20 and 30 years
  • Body Mass Index between 18 kg/m² and 25 kg/m²
  • Normal clinical examination
  • Normal biological variables
  • Normal electrocardiogram and echocardiography
  • Written, voluntary informed consent
  • Non smoker since at least a year

Non-inclusion Criteria:

  • Any history of significant allergy
  • Subjects with abnormal renal, pulmonary, cardiovascular, endocrine or hepatic function
  • Medication during the study
  • Alcohol consumption more than 30g/day or drug addiction
  • Positive serology for hepatitis B virus (HBV), hepatitis C virus (HCV) or HIV.
  • Exclusion period mentioned on the Healthy Volunteers National list
  • Persons deprived of freedom or under guardianship
Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
1FludrocortisoneFludrocortisone and Hydrocortisone
1HydrocortisoneFludrocortisone and Hydrocortisone
2FludrocortisoneFludrocortisone and placebo of Hydrocortisone
2Placebo of HydrocortisoneFludrocortisone and placebo of Hydrocortisone
3HydrocortisonePlacebo of Fludrocortisone and Hydrocortisone
3Placebo of FludrocortisonePlacebo of Fludrocortisone and Hydrocortisone
4Placebo of FludrocortisonePlacebo of Fludrocortisone and placebo of Hydrocortisone
4Placebo of HydrocortisonePlacebo of Fludrocortisone and placebo of Hydrocortisone
Primary Outcome Measures
NameTimeMethod
Phenylephrine-mean arterial pressure dose-response relationshipBetween 1.5 and 3 hours after treatment
Secondary Outcome Measures
NameTimeMethod
Systolic and diastolic arterial pressures, heart rate, cardiac output, systemic vascular resistancesBetween administration time and 24 hours after treatment
Humeral diameter and distensibilityBetween administration time and 12 hours after treatment
Plasma electrolytes, blood glucose, serum creatinineBetween administration time and 24 hours after treatment
Plasma renin, aldosterone, norepinephrine, epinephrine, hydrocortisone, fludrocortisone concentrationsBetween administration time and 24 hours after treatment
Central aortic pressures, Augmentation Index (Aix)Between administration time and 12 hours after treatment
Arterial stiffness: Carotid-femoral Pulse Wave VelocityBetween administration time and 12 hours after treatment
Urinary electrolytes excretionBetween administration time and 24 hours after treatment

Trial Locations

Locations (1)

Unité d'Investigation Clinique - Hôpital de Pontchaillou

🇫🇷

Rennes, France

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