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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT06022133
Other study ID # BGH-5-2017
Secondary ID 1-10-72-253-17
Status Completed
Phase N/A
First received
Last updated
Start date January 3, 2018
Est. completion date March 31, 2021

Study information

Verified date August 2023
Source Regional Hospital Holstebro
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

A reduction of dietary sodium intake reduces blood pressure and risk of cardiovascular disease.


Description:

A reduction of dietary sodium intake reduces blood pressure and risk of cardiovascular disease. Patients with hypertension resistant of antihypertensive treatment have a high frequency of non-dipping and obstructive sleep apnoea (OSA). The aim of this project is to analyse the effect of dietary sodium restriction on nocturnal blood pressure and nocturnal pauses in breathing in this patients population.


Recruitment information / eligibility

Status Completed
Enrollment 16
Est. completion date March 31, 2021
Est. primary completion date March 31, 2021
Accepts healthy volunteers No
Gender All
Age group 20 Years to 70 Years
Eligibility Inclusion Criteria: - 24h blood pressure > 130/80 mmHg under antihypertensive treatment with three agent, one of these being diuretic. Blood pressure measurement completed after observed intake of antihypertensive medication. - unchanged antihypertensive treatment for three months - estimated glomerular function >45 mL/min/1.73 m2 Exclusion Criteria: - Heart failure assessed from NYHA classification (grade 3-4) - Presence of clinically significant peripheral edema - In treatment for obstructive sleep apnea - Chronic obstructive pulmonary disease (FEV1 <50%) - Antihypertensive therapy that can not be taken once daily - Pregnancy or breastfeeding - ?-albumin <34 g / l - U-albumin creatinine ratio> 1000 mg / g - INR> 1.2 (if marevan treatment: ALAT> 200) - Gluten allergy (dietary guidelines are not adjusted to this group)

Study Design


Intervention

Behavioral:
Dietary sodium restriction
Selfemployed dietary sodium restriction

Locations

Country Name City State
Denmark University clinic in Nephrology and hypertension, Regional Hospital Godstrup Godstrup Herning
Denmark Department of Medical Research and Medicine, Holstebro Regional Hospital Holstebro

Sponsors (1)

Lead Sponsor Collaborator
Jesper Norgaard Bech

Country where clinical trial is conducted

Denmark, 

Outcome

Type Measure Description Time frame Safety issue
Primary Changes in nocturnal systolic blood pressure Comparison of blood pressure measured by 24 hour blood pressure measurements at baseline conditions (after two weeks of usual diet) and intervention (after two weeks of dietary sodium restriction) from day 14 to day 28
Secondary Changes in day (systolic and diastolic) and 24h blood pressure (systolic and diastolic) Comparison of blood pressure measured by 24h blood pressure measurements at baseline conditions (after two weeks of usual diet) and intervention (after two weeks of dietary sodium restriction) from day 14 to day 28
Secondary Changes in number of nocturnal pauses in breathing (apnoea hypopnoea index, AHI) Comparison of apnoea hypopnoea index measured by cardio respiratory monitoring at baseline conditions (after two weeks of usual diet) and intervention (after two weeks of dietary sodium restriction) from day 14 to day 28
Secondary Changes in day:night sodium urinary sodium excretion Comparison of baseline conditions (after two weeks of usual diet) and intervention (after two weeks of dietary sodium restriction) from day 14 to day 28
Secondary Changes in urinary excretion of aquaporin-2 (U-AQP2) og epithelial sodium channel (u-ENaC?) Comparison of baseline conditions (after two weeks of usual diet) and intervention (after two weeks of dietary sodium restriction) from day 14 to day 28
Secondary Changes in endothelial function (nitric oxide (NO), erythrocyte sodium sensitivity) Comparison of biomarkers from blood samples drawn at baseline conditions (after two weeks of usual diet) and intervention (after two weeks of dietary sodium restriction) from day 14 to day 28
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