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NCT Number: NCT07139808

Safety and Effectiveness of A Novel Continuous Glucose and Ketone Monitoring System

The study is to evaluate the accuracy and safety of a novel real-time continuous glucose and ketone monitoring system among adult patients with type 1 diabetes mellitus (T1DM) with respect to Yellow Spring Instrument (YSI) and Randox reference venous plasma sample measurements.

Recruiting

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Key information

Conditions

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China

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About this study

The study is to evaluate the accuracy and safety of a novel real-time continuous glucose and ketone monitoring (CGKM) system among adult patients with type 1 diabetes mellitus with respect to YSI and Randox reference venous plasma sample measurements. Up to 14 patients will be enrolled. Interstitial glucose and ketone readings from the sensors will be obtained immediatedly following each venous blood sample test. Each participant will make 3 visits to the clinical study site, including the screening visit.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age ≥ 18 years
  • Diagonsed with T1DM on Continuous subcutaneous insulin infusion (CSII)
  • Venous blood sampling access can be established in the forearm
  • Capable of independently reading instructions and complying with the clinical trial requirements
  • Willing to sign the Informed Consent Form (ICF)

Exclusion criteria

  • Severe hypoglycemia within the past 6 months
  • A diagnosed history of Diabetic ketoacidosis (DKA) in the past 3 months
  • Heart failure or hemiplegic sequelae due to prior cerebrovascular disease
  • Severe skin conditions at the sensor wear site
  • Extensive systemic skin disorders
  • Having difficulty with wound healing, bleeding disorders, and/or taking anticoagulant medications
  • Anemia or abnormal hematocrit
  • Blood donation within the past 6 months
  • Pregnancy (defined as positive urine test in women ≤55 years), lactation, or plans for pregnancy within ≤30 days
  • Current or recent (≤1 month) participation in other clinical trials
  • Planned MRI/CT scans during sensor wear
  • Allergy to medical adhesives or alcohol
  • Conditions impairing comprehension of informed consent or study procedures
  • Other exclusionary conditions per investigator's discretion

Treatment and study plan

GK5 CGKM

Device

Wear for a consecutive 15 days

Primary outcomes

  1. System performance on glucose measurement

    Time frame: 15 days

    The CGK system performance for glucose measurement will be assessed by comparing to the Yellow Springs Instrument comparator venous plasma measurements

  2. System performance on ketone measurement

    Time frame: 15 days

    The CGK system performance for ketone measurement will be assessed by comparing to the Randox comparator venous plasma measurements

Secondary outcomes

  1. System-related Safety

    Time frame: 15 days

    Records of the adverse events and device-related incidence rates.

Study contacts

Contact information is provided by the study sponsor or research team.

Sponsors and collaborators

Lead sponsor

Henan University of Science and Technology

Other

Registry information

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Aug 24, 2025
Registry last updated
Apr 7, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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