Feasibility Study of a Continuous Glucose-Ketone Monitoring Device in People With Type 1 Diabetes

Mahla Poudineh

Status: Not yet enrolling

Conditions: Type 1 Diabetes (T1D)

Treatments: Device: Glucose and ketone sensor; Behavioral: Temporary Insulin Suspension

Study type: Interventional

Funder types: Other

Identifiers

NCT06977633

76354

Details and patient eligibility

About

The goal of this study is to evaluate a CGM-CKM device during insulin suspension in patients with type 1 diabetes. 10 patients with T1D will be recruited for a pilot study. The patients will visit CTRU at Stanford Medical School. The CGM-CKM device will be applied to the upper arm area of patients and baseline ketone and glucose measurement will be performed for one hour prior to suspending or disconnecting the pump. Upon baseline measurement, the pump will be disconnected for 3 hours while the electrochemical signals are collected from the CGM-CKM device. During the 3 hours of pump disconnection, blood samples will be collected every 5 minutes from participants for analyzing their insulin and glucagon using conventional ELISA kits and glucose and ketone using standard meters.

Full description

This is a non-significant risk (NSR) device study not conducted under an IDE, in accordance with 21 CFR 812.2(b)

Enrollment: 10 estimated patients

Sex: All

Ages: 18 to 65 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Clinical diagnosis of type 1 diabetes for at least 1 year without significant endogenous insulin production
• Currently using insulin pump
• Understanding and willingness to follow the protocol and sign informed consent.
• Willingness to sign a consent for release of medical information at the time of enrollment
• Ability to speak, read and write in the language of the investigators.

Exclusion criteria

• History of DKA or severe hypoglycemia within the past 6 months
• eGFR <45 mL/min/1.73 m2 or other significant renal impairment
• Pregnancy or breastfeeding
• Current use of non-insulin medications affecting ketone production, including SGLT2 inhibitors
• Active skin infections or conditions affecting sensor application sites
• Known skin allergies to tapes or adhesives
• Current use of any long-acting insulin analogs
• A known medical condition that in the judgment of the investigator might interfere with the completion of the protocol

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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10 participants in 1 patient group

People with type 1 diabetes on insulin pump

Experimental group

Treatment:

Behavioral: Temporary Insulin Suspension

Device: Glucose and ketone sensor