Not Yet RecruitingNot Applicable

The Impact of Low Sodium Salt Substitute Use on Serum Potassium Levels Among Patients With Hypertension

607 participantsStarted 2026-07-01

Plain-language summary

The goal of this pre-post study is to assess the risk of hyperkalemia in adults with hypertension on medication in Bangladesh. The main questions it aims to answer are: Is the risk of hyperkalemia after the initiation of Low Sodium Salt Substitute (LSSS) in people on antihypertensive medication (especially RASi) large enough to be concerned about its broad use in this population? Does initiation of LSSS correct hypokalemia in people on antihypertensive medication (especially RASi) with low serum potassium levels? Participants will be asked to reduce overall salt intake and to use LSSS on every occasion where regular salt would normally be used, including as cooking salt.

Who can participate

Age range18 Years

SexALL

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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Adults ≥18 years with clinically diagnosed hypertension treated with medication \[on a stable dose at least for 2 months\] * Have a phone for contact Exclusion Criteria: * Those with baseline K ≥5.0 or K \<3.0 mmol/L * Advanced kidney disease (eGFR \<45 ml/min/1.73m2). * Those on potassium sparing diuretics (e.g., spironolactone) * Other medical conditions determined by physicians (e.g., heart failure treated with medication; life expectancy less than 12 months) * Dine out for dinner more than 3 times a week

What they're measuring

Incident hyperkalemia (K ≥5.5 mmol/L)

Timeframe: 4 and 8 weeks

Proportion of the correction of hypokalemia (from K <3.5 mmol/L to 3.5-5.0 mmol/L)

Timeframe: 4 and 8 weeks

Trial details

NCT IDNCT07460882

SponsorJohns Hopkins University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2027-03-31

Contact for this trial

Junichi Ishigami, MD, PhD

14432877262 jishiga1@jhu.edu