AK+ Guard™ Pilot Study in Chronic Kidney Disease: Outpatient Diagnostic Accuracy and Remote Monitoring
Diagnostic Accuracy, Usability, Patient Compliance, and System Reliability of the AK+ Guard™ ECG Application for Hyperkalemia Prediction in Ambulatory Chronic Kidney Disease Patients (Outpatient and Remote Monitoring Arms)
AccurKardia, Inc.
50 participants
Oct 14, 2025
OBSERVATIONAL
Conditions
Summary
The goal of this observational pilot study is to evaluate the investigational AK+ Guard™ software as a medical device (SaMD) for detection of moderate to severe hyperkalemia (serum potassium (K+) ≥ 6.5 mmol/L) in adults with chronic kidney disease (CKD). Study objectives are: * Arm 2A (Outpatient Diagnostic Accuracy): To generate a preliminary, real-world signal of the diagnostic performance of AK+ Guard™ when used in an ambulatory CKD cohort for identifying clinically significant hyperkalemia episodes (serum K+ ≥ 6.5 mmol/L) at the time of an outpatient laboratory draw. * Arm 2B (Remote Patient Monitoring): To assess participant compliance, usability, and end-to-end system reliability of AK+ Guard™ when deployed for daily remote monitoring of CKD patients outside the clinical environment for up to four weeks.
Eligibility
Inclusion Criteria9
- (Arm 2A - Outpatient Diagnostic Accuracy)
- Age 22 years or older
- CKD stages III-IV managed at Central Jersey Kidney Care outpatient clinic
- Scheduled outpatient serum potassium laboratory test
- On RAASi therapy or documented hyperkalemia (K+ ≥ 5.5 mmol/L) within the past 12 months
- Able to provide written informed consent
- (Arm 2B - Remote Patient Monitoring)
- Completion of Arm 2A visit
- Owns an iPhone compatible with the study application
Exclusion Criteria6
- Age 21 years or younger
- Pacemaker or implantable cardioverter defibrillator
- Pre existing Left Bundle Branch Block (LBBB), Right Bundle Branch Block (RBBB), Intraventricular Conduction Delay (IVCD), or clinically significant hypocalcemia
- Potassium lowering treatment administered before Lead I ECG acquisition
- Trauma, acute events, or active interventions altering potassium homeostasis
- Physical limitation precluding ECG acquisition
Interventions
An investigational Software as a Medical Device (SaMD) that analyzes Lead I electrocardiogram (ECG) data using artificial intelligence to detect moderate to severe hyperkalemia (serum potassium ≥ 6.5 mmol/L). ECG inputs may be obtained from standard 12-lead ECGs, clinical-grade ECG devices with Lead I capability, or consumer wearable devices (e.g., Apple Watch, HeartBeam).
Locations(1)
View Full Details on ClinicalTrials.gov
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NCT07210021