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Potassium-Magnesium Citrate as a Blood Pressure Lowering Agent in Hypertensive Patients

This study has been completed.
Information provided by (Responsible Party):
Orson Moe, University of Texas Southwestern Medical Center Identifier:
First received: February 23, 2010
Last updated: December 10, 2013
Last verified: December 2013
The goal of this study is to compare the effects of Potassium Magnesium Citrate to Potassium Chloride on blood pressure among patients with pre-hypertension or mild hypertension. We will also test whether Potassium Magnesium Citrate increases excretion of large amounts of sodium in the urine.

Condition Intervention Phase
Drug: Potassium, Magnesium, Citrate
Drug: Potassium Chloride
Phase 1
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double Blind (Participant, Care Provider, Investigator)
Primary Purpose: Supportive Care
Official Title: Potassium-Magnesium Citrate as a Blood Pressure Lowering Agent in Hypertensive Patients; Role of Natriuresis

Resource links provided by NLM:

Further study details as provided by University of Texas Southwestern Medical Center:

Primary Outcome Measures:
  • Blood Pressure [ Time Frame: 8 weeks ]
    We have estimated to detect a 4 mmHg difference, with a standard deviation estimated at 8 mmHg.

Enrollment: 35
Study Start Date: September 2009
Study Completion Date: December 2012
Primary Completion Date: September 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Potassium Magnesium Citrate Drug: Potassium, Magnesium, Citrate
Potassium MAgnesium Citrate - 30 mEq potassium, 15 mEq Magnesium, 45 mEq Citrate in a powder mixture twice a day, mixed with a glass of water.
Active Comparator: Potassium Chloride Drug: Potassium Chloride
Potassium Chloride


Ages Eligible for Study:   21 Years to 95 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Age greater than 21 years
  • BMI > 18.5 kg/m2 and < 40 kg/m2
  • Prehypertension and mild hypertension: BP systolic 120-159 mmHg, diastolic 80-95 mmHg
  • Must agree to limit lifestyle changes including: 1) embarking on a new exercise or weight reduction program 2) altering alcohol intake during the trial.

Exclusion Criteria:

  • Taking blood pressure lowering medication
  • Diabetes mellitus
  • Renal disease
  • Active cardiac disease
  • Active liver disease
  • Chronic diarrhea
  • Chronic NSAID use
  • Active or suspected drug use
  • Uncontrolled psychiatric disease
  • HIV infection
  • Missed more than 20% of clinic visits in the last yr
  • Prescription of diuretics for any reason
  • A patient taking nutritional supplements including multivitamins that is unwilling to discontinue them,\
  • Consumption of greater than 14 alcoholic beverages per week
  Contacts and Locations
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Please refer to this study by its identifier: NCT01074918

United States, Texas
Dallas VA Medical Center
Dallas, Texas, United States, 75216
UT Southwestern Medical Center
Dallas, Texas, United States, 75390
Sponsors and Collaborators
University of Texas Southwestern Medical Center
  More Information

Responsible Party: Orson Moe, Professor of Internal Medicine, University of Texas Southwestern Medical Center Identifier: NCT01074918     History of Changes
Other Study ID Numbers: 012007-080
Study First Received: February 23, 2010
Last Updated: December 10, 2013

Keywords provided by University of Texas Southwestern Medical Center:

Additional relevant MeSH terms:
Vascular Diseases
Cardiovascular Diseases
Citric Acid
Magnesium citrate
Calcium Chelating Agents
Chelating Agents
Sequestering Agents
Molecular Mechanisms of Pharmacological Action
Gastrointestinal Agents processed this record on May 23, 2017