The investigators aim to develop a novel and wireless method for monitoring medication adherence among heart failure patients with left ventricular assist devices (LVADs). Proteus Digital™ has developed an ingestible and bio-absorbable micro-sensor as a strategy to monitor medication compliance. The edible sensor has at its core a silicon-based integrated circuit measuring 1.0 mm x 0.45 mm and is imbedded on a pill. Once ingested, this circuit is activated by gastric acid resulting in an electrochemical redox reaction and an electrical charge that is transmitted to a patch worn over the abdomen and wirelessly to a portable device such as a smart phone. This strategy of medication adherence differs from conventional adherence monitoring including pill counting and patient-recall by precisely tracking medication ingestion.
The objectives are to assess the efficacy and safety of the Proteus Digital™ micro-sensor in an exploratory investigation among heart failure patients with LVADs. Medication adherence, specifically to anticoagulation is critically important in the post-implant period to maintain LVAD function and to decrease thromboembolic complications; however, commonly results in significant bleeding resulting in significant morbidity and mortality. In addition, the anticipated degree of anticoagulation is unpredictable after LVAD implantation due to factors related to changes in hepatic blood flow and endothelial dysfunction. Enrolling 10 patients will provide results into the function of micro-sensor and to provide a preliminary assessment of sensor-based activity, signal strength and signal duration in LVAD recipients. Participants will be enrolled during an in-patient hospitalization to assess the efficacy and safety of the device in a monitored setting.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
10
An edible sensor system, Proteus Digital™ has been developed for electronically confirming medication adherence, gathering physiologic metrics and communicating these data to patients. The system consists of two major components: an edible sensor and a wearable receiver health monitor. An electrical signal is activated upon ingestion of the Proteus Digital micro-sensor with transmission of this signal to a receiving abdominal patch to quantify medication compliance.
Scripps Health
San Diego, California, United States
System Performance - Positive Detection Accuracy
Primary outcome measure of system performance will be estimated by the positive detection accuracy, defined as the number of ingestible sensors detected divided by those ingested
Time frame: 30 minutes after ingestion
Number of Participants With Adverse Events as a Measure of Safety and Tolerability
Specific safety metrics will consist of the following composite outcome: 1. Safety as measured by vital signs 2. Cardiac rhythm monitoring review for arrhythmias 3. LVAD device interrogation for changes in device parameters 4. Implantable cardioverter defibrillator interrogation for arrhythmia occurrence
Time frame: From time of ingestion to 30 minutes after ingestion
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.