CGMIS 48-hour Feasibility Study
A 48hr Study to Test Feasibility of the Pacific Diabetes Technologies Continuous Glucose Monitor Infusion Set (CGMIS) Sensing Interstitial Glucose Continuously in the Immediate Vicinity of SQ Insulin Delivery in Adults With T1 Diabetes
1 other identifier
interventional
20
1 country
1
Brief Summary
This is a single center, single arm non-randomized study of 48-hour CGMIS wear duration incorporating two meal-challenge tests to explore the performance of a single insertion combined glucose-sensing insulin delivery cannula.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Aug 2022
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 30, 2022
CompletedFirst Submitted
Initial submission to the registry
September 26, 2022
CompletedFirst Posted
Study publicly available on registry
September 30, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
November 1, 2022
CompletedSeptember 30, 2022
September 1, 2022
1 month
September 26, 2022
September 28, 2022
Conditions
Outcome Measures
Primary Outcomes (2)
Accuracy
Sensor accuracy as determined by mean absolute difference (MAD) for reference YSI venous blood glucose values ≤75 mg/dL and mean absolute relative difference (MARD) for reference YSI venous blood glucose values \>75 mg/dL
First 48 hours
Accuracy
• Sensor accuracy in the performance metrics described in the FDA iCGM Special Controls.
First 48 hours
Secondary Outcomes (4)
Number of subjects who discontinue delivery of insulin through the device due to unexplained hyperglycemia
First 48 hours
Results of tolerability questionnaire
First 48 hours
Results of Draize scale
Firts 48 hours
Visual Analog Scale (VAS) for site discomfort
First 48 hours
Study Arms (1)
Study group
EXPERIMENTALAll subjects using the study device
Interventions
An integrated combination CGM/insulin infusion system
Eligibility Criteria
You may qualify if:
- Type 1 diabetes, present for at least 6 months. If there is lack of clarity regarding the type of diabetes, the PI will make the final decision based on medical records.
- Age 18-75
- Currently using a Tandem T-Slim or Medtronic 523/723 or newer series insulin pump to treat their diabetes.
- Hgb A1C between 5.8 and 10%
- Willingness to follow all study procedures and to attend all clinic visits.
- Willingness to sign informed consent and HIPPA documents.
You may not qualify if:
- Need for MRI/CT/Diathermy during study participation
- Current use of Hydroxyurea
- History of chronic kidney disease
- Inability to read pump or CGM display due to reduced visual acuity
- History of unstable ischaemic heart disease or myocardial infarction within the last 3 months.
- History of chronic liver disease
- Active infection such as HIV or hepatitis
- Anemia defined by HCT at least 4 percentage points below lower limit of the reference range
- Dementia, Schizophrenia or other untreated mental illness
- Chronic substance abuse
- Chronic alcohol abuse
- Seizure disorder
- Major surgical operation within 30 days prior to screening
- History of bleeding disorder or treatment with anticoagulants.
- Allergy to acrylate-based skin adhesives
- +6 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Rainier Clinical Research Center
Renton, Washington, 98057, United States
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- OTHER
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 26, 2022
First Posted
September 30, 2022
Study Start
August 30, 2022
Primary Completion
October 1, 2022
Study Completion
November 1, 2022
Last Updated
September 30, 2022
Record last verified: 2022-09