Accuracy and Precision of the True Vie I3 Continuous Glucose Monitoring System: an Open Label, Multi-Center Trial

November 19, 2025 updated by: Sinocare
The purpose of the investigation is to evaluate the performance of the I3 CGM according to the FDA's special controls for iCGM.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Participants will attend a screening visit, 4 clinic visits with Frequent Sampling Testing (FST) at the beginning, 2 in the middle, and end of the I3 CGM sensor wear, and a visit for removal of the I3 CGM. Participants will wear 3 I3 CGM devices for up to 15 days and be instructed to continue their normal daily activities and manage their glucose as usual between in clinic FST per routine care. Participants will not have access to the I3 CGM data for the management of their blood glucose between clinic visits and will continue their usual care including CGM, if they are CGM users.

At the clinic FST visits venous blood samples will be drawn from an intravenous cannula for FST for up to 10 hours for plasma glucose determination. During the clinic visits the investigative site staff will determine the participants' insulin doses and meals and may induce both hypoglycemia and hyperglycemia of up to an hour duration.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
159

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Germany
      • Mainz, Germany, 55128
        • PSHI Praxis GmbH
      • Ulm, Germany, D-89081
        • Institut für Diabetes-Technologie Forschungs- und Entwicklungsgesellschaft mbH an der Universität Ulm
  • United States
    • Arkansas
      • Rogers, Arkansas, United States, 72758
        • Woodland Research Northwest
    • California
      • Walnut Creek, California, United States, 94598
        • Diablo Clinical Research
    • Georgia
      • Atlanta, Georgia, United States, 30318
        • Atlanta Diabetes Associates
    • Washington
      • Renton, Washington, United States, 98057
        • Rainier Clinical Research Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Sampling Method

Non-Probability Sample

Study Population

Patients with type 1 diabetes mellitus (T1DM) or type 2 diabetes mellitus (T2DM) using an insulin treatment regimen based on carbohydrate (CHO) counting for meal insulin dose determination and 18-80 years of age will be recruited to participate in the study. Both participants using and not using CGM will be recruited, and participants with a wide range of BMIs and ages will be represented.

Description

Inclusion Criteria:

  • 1. Patients with T1DM or T2DM diagnosed for at least 6 months. 2. Individual is 18-80 years old, inclusive, at the time of screening. 3. Must be and have been in stable treatment regimen for at least 1 month with a multiple daily insulin dosing regimen (at least two insulin doses with meals daily) or CSII using at least two bolus doses a day with meals, irrespective of delivery device(s).

Exclusion Criteria:

  • 1. History of skin adhesive tolerance issues in the area of sensor placement. 2. HbA1c > 9%. 3. Insulin meal dosing based on fixed dose regimens. 4. Absence of established correction factor for high glucose. 5. Hematocrit below 10% under the lower limit of the normal range. 6. Body mass index < 18.5 kg/m2. 7. Inadequate intravenous access on arms. 8. Participant has had a hypoglycemic seizure within the past 6 months prior to enrollment.

    9. Participant has had an episode of diabetic ketoacidosis (DKA) within the past 6 months prior to enrollment.

    10. Participant has a history of a seizure disorder. 11. Pregnancy, planned pregnancy within the study period, or unwillingness to use reliable contraception during the study period.

    12. Planned MRI, CT scan or diathermia procedure for the duration of the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
T1DM
Participants with type 1 diabetes mellitus
Device: Continuous glucose monitoring device
Continuous glucose monitoring device
T2DM
Participants with type 2 diabetes mellitus
Device: Continuous glucose monitoring device
Continuous glucose monitoring device

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Accuracy
Time Frame: 15 days
percentage of iCGM values in the measuring range less than 70 mg/dL (3.9 mmol/l) within +/- 15 mg/dL (0.83 mmol/l) of the
15 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Sinocare

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Integrated Medical Development

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Ron Brazg, MD, RCRC

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 19, 2023

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 13, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 22, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 28, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 28, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 10, 2023

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 19, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • NPI031-CIP-002F

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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