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Validation Study for the Alertgy Non-invasive Continuous Glucose Monitor (ANICGM)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT04166032
Recruitment Status : Completed
First Posted : November 18, 2019
Results First Posted : November 9, 2021
Last Update Posted : November 9, 2021
Information provided by (Responsible Party):
M. Cecilia Lansang, MD, The Cleveland Clinic

Brief Summary:

Diabetes mellitus (DM) affects 30 million people in the United States. To achieve glucose control, most patients are prescribed glucose meters by their physicians. Obtaining glucose levels in this manner necessitates cleaning the fingers, attaching a lancet to a device (or simply using a lancet if a device is not available), pricking the finger with a lancet, placing a drop blood on a strip, and awaiting the readout that results after some chemical reactions. Thereafter, the lancet has to be disposed of in a safe receptacle and the finger has to be blotted to stop the blood from oozing.

The anxiety, pain, and tedious process have led researchers to develop other means of checking glucose levels. There are now continuous glucose monitoring systems (CGMS) that entail inserting a subcutaneous sensor that sends readings through a transmitter. These CGMs may or may not need calibration with a fingerstick glucose reading, and the subcutaneous sensor still has to be changed every 10 -14 days.

The Alertgy non-invasive continuous glucose monitor (ANICGM) is a device that does not entail any subcutaneous insertion of a sensor. It is strapped on to the wrist, and glucose readings are given based on subcutaneous signals. In 2001, a non-invasive device called Glucowatch Biographer was introduced that also involved subcutaneous signals without needing a subcutaneous insertion. However, for various reasons such as long calibration period and reading inaccuracies, the product did not take off. The ANICGM is a promising device that might overcome the limitations of existing and previous methods of non-invasive glucose measurement.

Condition or disease Intervention/treatment
Type 2 Diabetes Device: Alertgy non-invasive continuous glucose monitoring device (ANICGM)

Detailed Description:

The ANICGM uses a weak electromagnetic field generated by its wrist band sensor to look into the body to produce a spectrum that provides a measurement of blood glucose present in the wrist area of the body. The core sensing technology used is dielectric spectroscopy, and has been shown capable of measuring blood glucose, non-invasively, in a laboratory environment. The system uses proprietary and patented dielectric materials and signal processing to enhance performance in both selectivity and sensitivity for blood glucose measurement.

Much like how a MRI uses a strong magnetic field and its interaction with the body to create a picture of what is inside, the ANICGM uses a safe weak low frequency radiofrequency field to take a picture of a person's chemical spectrum, some of it specific only to blood glucose.

The device sends and receives back signals from the wrist area that are used to generate a dielectric spectrum once every 6 seconds. The POC BG using the Accuchek Inform II will be used to provide calibration values for the ANICGM every 5 minutes in mg/dL, during the calibration process. The POC BG levels will be entered into the Alertgy laptop and a proprietary calibration program will be used to analyze the spectral data collected and will generate a calibration algorithm.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 15 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Screening
Official Title: Validation Study for the Alertgy Non-invasive Continuous Glucose Monitor
Actual Study Start Date : November 6, 2019
Actual Primary Completion Date : February 4, 2020
Actual Study Completion Date : May 30, 2020

Resource links provided by the National Library of Medicine

Drug Information available for: Dextrose

Arm Intervention/treatment
Experimental: ANICGM
non-invasive continuous glucose monitoring device
Device: Alertgy non-invasive continuous glucose monitoring device (ANICGM)
Alertgy non-invasive continuous glucose monitoring device (ANICGM)

Primary Outcome Measures :
  1. Mean Absolute Relative Difference (MARD) of Glucose Values Between the ANICGM and FDA-approved Glucose Monitoring Device [ Time Frame: 2 time points taken over 2 separate days respectively, over a span of up to 14 days ]
    Hypothesis is that ANICGM device will perform similarly as other blood glucose monitoring devices Mean absolute relative difference (MARD) is computed by taking the arithmetic mean of the absolute relative differences between the ANICGM system measures and the reference standard FS BG, which serves as the denominator of the calculation. The MARD is expressed as a percentage, and a lower MARD signifies better concordance between the two measurements.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Type 2 diabetes on diet or on pharmacologic treatment for diabetes
  • Hemoglobin A1c between 7.5 - 10.0%
  • Age 18 - 75 years old

Exclusion Criteria:

  • Patients taking prandial insulin
  • Fasting blood glucose by fingerstick of < 70 mg/dL or >250 mg/dL
  • Pregnancy
  • End stage renal disease
  • Decompensated or acute heart failure
  • Medications that may cause false readings with glucose meters: acetaminophen, ascorbic acid, dopamine, maltodextrin, mannitol
  • Conditions that limit the ANICGM such as lesions on the forearms
  • Other conditions that the investigator deems will affect the conduct of the study

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04166032

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United States, Ohio
Cleveland Clinic
Cleveland, Ohio, United States, 44195
Sponsors and Collaborators
The Cleveland Clinic
  Study Documents (Full-Text)

Documents provided by M. Cecilia Lansang, MD, The Cleveland Clinic:
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Responsible Party: M. Cecilia Lansang, MD, Professor of Medicine, Endocrinology Staff Physician, The Cleveland Clinic
ClinicalTrials.gov Identifier: NCT04166032    
Other Study ID Numbers: 18-1385
First Posted: November 18, 2019    Key Record Dates
Results First Posted: November 9, 2021
Last Update Posted: November 9, 2021
Last Verified: October 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Keywords provided by M. Cecilia Lansang, MD, The Cleveland Clinic:
glucose monitor