Hydration to Optimize Metabolism

  • STATUS
    Recruiting
  • End date
    Jun 30, 2023
  • participants needed
    800
  • sponsor
    Region Skane
Updated on 3 March 2021

Summary

This study evaluates hydration (1.5 L of water daily during 1 year) in the lowering of blood glucose concentration in adults with signs of dehydration (elevated levels of the vasopressin marker copeptin and high urine osmolality). Half of participants will in addition to lifestyle advice receive extra water on top of their habitual fluid intake, and the other half (control) will receive only lifestyle advice.

Description

High plasma concentration of vasopressin (i.e. antidiuretic hormone) is a novel and independent risk factor for type 2 diabetes, the metabolic syndrome, cardiovascular disease and premature death. The main physiological role of vasopressin is to maintain constant plasma osmolality. Previous studies in rats and mendelian randomization studies in humans suggest causality between elevated vasopressin concentration and elevated plasma glucose concentration. As vasopressin can be suppressed by increasing water intake, we hypothesize that water supplementation in individuals with high vasopressin can lower plasma glucose and prevent diabetes.

The aim of this project is to test in a single-centre randomized clinical trial (RCT), if water supplementation in subjects with high plasma levels of vasopressin (measured by a stable vasopressin marker of its precursor hormone called copeptin) can reduce fasting levels of glucose (primary outcome measure), risk of new-onset diabetes and other cardiometabolic risk factors (secondary outcome measures).

Details
Condition Hyperglycemia
Treatment Water, general life style advice
Clinical Study IdentifierNCT03422848
SponsorRegion Skane
Last Modified on3 March 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Provision of informed consent, age 20-75 years with high plasma concentration of vasopressin (plasma concentration of copeptin of > 6.1 pmol/L in women and > 10.7 pmol/L in men) and 24 hour urine osmolality > 600 milliosmol (mOsm) /kg water

Exclusion Criteria

hour urine volume > 1.5 L, pregnancy or breastfeeding, plasma sodium < 135 mmol/L, use of diuretics, lithium or selective serotonin reuptake inhibitor (SSRI) drugs, chronic kidney disease (estimated glomerular filtration rate < 30 mL/min), heart failure, inflammatory bowel disease, type 1 diabetes or type 2 diabetes treated with insulin, vulnerable subjects (subjects with legal guardian, with loss of personal liberty)
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