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ClinicalTrials.gov public records Last synced May 21, 2026, 11:05 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 52 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Hyperkalemia Clear all
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Kidney Failure, Chronic
Interventions
Patiromer 25.2 g
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 8, 2019 · Synced May 21, 2026, 11:05 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Hyperkalemia
Interventions
Patiromer, Placebos
Drug
Lead sponsor
Vifor Pharma, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
133
States / cities
Alexander City, Alabama • Huntsville, Alabama • Phoenix, Arizona + 110 more
Source: ClinicalTrials.gov public record
Updated Feb 23, 2023 · Synced May 21, 2026, 11:05 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Hyperkalemia
Interventions
Sodium Zirconium Cyclosilicate
Drug
Lead sponsor
ZS Pharma, Inc.
Industry
Eligibility
18 Years and older
Enrollment
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
41
States / cities
Anniston, Alabama • Huntsville, Alabama • Scottsboro, Alabama + 35 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2018 · Synced May 21, 2026, 11:05 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Hyperkalemia
Interventions
Placebo, Sodium Zirconium Cyclosilicate (ZS)
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
196 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
15
States / cities
Los Angeles, California • Ontario, California • San Dimas, California + 11 more
Source: ClinicalTrials.gov public record
Updated Feb 19, 2020 · Synced May 21, 2026, 11:05 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Chronic Kidney Diseases
Interventions
Dietary education program
Behavioral
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
2
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced May 21, 2026, 11:05 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Hyperkalemia
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
50 Years to 89 Years
Enrollment
1,151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 13, 2023 · Synced May 21, 2026, 11:05 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Hyperkalemia, Heart Failure
Interventions
patiromer, placebo
Drug
Lead sponsor
Relypsa, Inc.
Industry
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
9
States / cities
Miami, Florida • Port Charlotte, Florida • Peoria, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2021 · Synced May 21, 2026, 11:05 PM EDT
Not yet recruiting Phase 4 Interventional
View directory record Official record
Conditions
Chronic Kidney Disease, Type 2 Diabetes
Interventions
Finerenone, Semaglutide, Lotensin, Capoten, Enalapril, Monopril, Lisinopril, Univasc, Aceon, Accupril, Altace, Mavik, Edarbi, Atacand, Avapro, Cozaar, Benicar, Micardis, Diovan, Invokana, Farxiga, Jardiance, Ertugliflozin, Brenzavvy, Sotagliflozin
Drug
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years to 84 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Temple, Texas
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced May 21, 2026, 11:05 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Hyperkalemia
Interventions
Sodium zirconium cyclosilicate, Placebo
Drug
Lead sponsor
ZS Pharma, Inc.
Industry
Eligibility
18 Years and older
Enrollment
258 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
38
States / cities
Anniston, Alabama • Huntsville, Alabama • Scottsboro, Alabama + 35 more
Source: ClinicalTrials.gov public record
Updated Dec 6, 2018 · Synced May 21, 2026, 11:05 PM EDT
Recruiting Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Dysequilibrium Syndrome, ESRD, Hyperkalemia, Metabolic Acidosis
Interventions
Urea in the dialysate
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced May 21, 2026, 11:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Hyperkalemia
Interventions
Blood sample drawn from a vein, Blood sample drawn from a heel stick
Other
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
Up to 6 Months
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 12, 2016 · Synced May 21, 2026, 11:05 PM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Hyperkalaemia, Heart Failure With Reduced Ejection Fraction
Interventions
Sodium zirconium cyclosilicate, Placebo, Spironolactone
Drug · Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
366 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
12
States / cities
Fairhope, Alabama • Los Angeles, California • Torrance, California + 9 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2025 · Synced May 21, 2026, 11:05 PM EDT
Terminated Phase 4 Interventional Results available
View directory record Official record
Conditions
Acute Hyperkalemia, Oral Potassium Binders
Interventions
Polyethylene Glycol 3350, Sodium Polystyrene Sulfonate Oral Suspension [SPS], Patiromer, Sodium zirconium cyclosilicate
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced May 21, 2026, 11:05 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Diabetic Nephropathy
Interventions
spironolactone
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 90 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Dayton, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 16, 2008 · Synced May 21, 2026, 11:05 PM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Renal Insufficiency, Chronic, Hyperkalemia
Interventions
Sodium Zirconium Cyclosilicate (SZC), Placebo, Lisinopril, Valsartan, Irbesartan
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
1,112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
42
States / cities
Surprise, Arizona • Tucson, Arizona • Canyon Country, California + 36 more
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced May 21, 2026, 11:05 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Hyperkalemia, Resistant Hypertension
Interventions
Patiromer, Placebo, Spironolactone
Drug
Lead sponsor
Relypsa, Inc.
Industry
Eligibility
18 Years and older
Enrollment
295 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
3
States / cities
Hollywood, Florida • Miami Lakes, Florida • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 11, 2021 · Synced May 21, 2026, 11:05 PM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Hyperkalaemia
Interventions
Sodium Zirconium Cyclosilicate (SZC) Reduced Dose Level, Sodium Zirconium Cyclosilicate (SZC) Dose Level 1 (DL1), Sodium Zirconium Cyclosilicate (SZC) Dose Level 2 (DL2), Sodium Zirconium Cyclosilicate (SZC) Dose Level 3 (DL3), Sodium Zirconium Cyclosilicate (SZC) Dose During 28 Day Maintenance Phase
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
0 Years to 18 Years
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2030
U.S. locations
14
States / cities
Birmingham, Alabama • Atlanta, Georgia • Baltimore, Maryland + 11 more
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced May 21, 2026, 11:05 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Cardiopulmonary Failure, Myocardial Infarction (MI), Heart Decompensation, Heart Failure, HFrEF - Heart Failure with Reduced Ejection Fraction, HFpEF - Heart Failure with Preserved Ejection Fraction, Syncopation, Syncope, Ischemic Cardiovascular Disease, STEMI, STEMI (ST Elevation MI), Atrial Fibrillation (AF), Atrial Enlargement, LVF, Conduction Defect, Conduction Abnormalities, Heart Block, Valvular Diseases, Cardiac Output, Low, Stroke Volume, Stroke Volume Variation, Hyperkalemia, Hypercalcemia, Hypocalcemia, LV Dysfunction, QT Prolongation, Sudden Cardiac Death Due to Cardiac Arrhythmia, Ventricular Arrhythmia, Pacing, Pacing Induced Dyssynchrony, Silent Ischemia, Pericarditis, Sleep Related Breathing Disorder, RSA, Apnea, Obstructive, Cardiac Output Measurement, Respiratory Impedance, CRT And/or ICD, Infarction, Cardiomyopathies, Primary, Hypertrophy
Interventions
SUBPROTOCOL A, SUBPROTOCOL B, SUBPROTOCOL C, SUBPROTOCOL D, SUBPROTOCOL E, SUBPROTOCOL F, SUBPROTOCOL G, SUBPROTOCOL H
Device
Lead sponsor
Peerbridge Health, Inc
Industry
Eligibility
18 Years and older
Enrollment
15,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Melbourne, Florida
Source: ClinicalTrials.gov public record
Updated Jan 7, 2025 · Synced May 21, 2026, 11:05 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Hyperkalemia
Interventions
Protein supplementation
Behavioral
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
1 Minute to 12 Hours
Enrollment
62 participants
Timeline
2002 – 2007
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Oct 4, 2023 · Synced May 21, 2026, 11:05 PM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Hyperkalemia
Interventions
Sodium Zirconium Cyclosilicate (SZC), SZC Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
2,690 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
57
States / cities
Huntsville, Alabama • Mesa, Arizona • Bakersfield, California + 47 more
Source: ClinicalTrials.gov public record
Updated Jun 17, 2025 · Synced May 21, 2026, 11:05 PM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Heart Failure
Interventions
Sodium Zirconium Cyclosilicate, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 150 Years
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
14
States / cities
National City, California • Stanford, California • Waterbury, Connecticut + 11 more
Source: ClinicalTrials.gov public record
Updated Jun 14, 2021 · Synced May 21, 2026, 11:05 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Chronic Kidney Disease (CKD), Hyperkalemia (HK)
Interventions
Patiromer, Placebo
Drug
Lead sponsor
Relypsa, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
243 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
14
States / cities
Azusa, California • Los Angeles, California • Sacramento, California + 11 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2021 · Synced May 21, 2026, 11:05 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Hyperkalemia
Interventions
Sodium Zirconium Cyclosilicate
Drug
Lead sponsor
ZS Pharma, Inc.
Industry
Eligibility
18 Years and older
Enrollment
751 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
36
States / cities
Scottsboro, Alabama • Tempe, Arizona • Tucson, Arizona + 31 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2018 · Synced May 21, 2026, 11:05 PM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Hyperkalemia
Interventions
patiromer
Drug
Lead sponsor
Relypsa, Inc.
Industry
Eligibility
18 Years and older
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
29
States / cities
Fountain Valley, California • Huntington Beach, California • Palm Springs, California + 21 more
Source: ClinicalTrials.gov public record
Updated May 11, 2021 · Synced May 21, 2026, 11:05 PM EDT