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Clinical Study of UMOD NKCC2 Interaction on Salt-sensitivity in Hypertension

NCT03354897 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 228

Last updated 2023-09-25

No results posted yet for this study

Summary

The hypothesis is based on UMOD rs13333226 genotype, there are two strata of hypertensive patients. The High-UMOD group (AA genotype) has increased UMOD excretion, greater salt sensitivity, HTN, normal eGFR and greater BP response to loop diuretics like furosemide. The Low-UMOD group (G allele) has decreased UMOD excretion, salt resistance, increased eGFR, increased proximal tubular reabsorption of Na (possibly related to increased GFR), a poor BP response to loop diuretics, and possibly diminished function of NKCC2. The High-UMOD strata will have decreased delivery of Na+ to the distal tubule and collecting duct because NKCC2 function is normal and the study hypothesis is that the participants will be more responsive to loop diuretics. In contrast, the Low-UMOD group (G allele) will not show a similar response to loop diuretics. This may be related either to lower Na delivery to the TAL, because of increased proximal tubular reabsorption of Na+, or a suppressed function of NKCC2. The population distribution of the High-UMOD group (AA) is 67%. Our overall objective is to test the hypothesis that hypertensive subjects with uncontrolled HTN open possessing the AA genotype of rs13333226 will be better responders to loop diuretics compared to those possessing the G allele.

Conditions

Interventions

DRUG

Torasemide 5Mg Tablet

16 weeks treatment

Sponsors & Collaborators

  • University of Glasgow

    collaborator OTHER

  • British Heart Foundation

    collaborator OTHER

  • NHS Greater Glasgow and Clyde

    lead OTHER

Principal Investigators

  • Sandosh Padmanabhan, MbChB PhD · University of Glasgow

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-04-05
Primary Completion
2021-10-30
Completion
2021-10-30

Countries

  • United Kingdom

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03354897 on ClinicalTrials.gov