- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03554486
Evaluation of Fiasp® (Fast Acting Insulin Aspart) in 670G Hybrid Closed-Loop Therapy
August 16, 2021 updated by: Bruce Buckingham, Stanford University
Evaluation of Fiasp® (Fast Acting Insulin Aspart) in 670G Hybrid Closed-Loop Therapy: To Assess How the 670G System Adapts to the Introduction of Fiasp® Insulin
This is a pilot outpatient study conducted at Stanford to obtain preliminary data on how Fiasp® works in a closed-loop system and to determine if any changes need to be made to the 670G pump to optimize the use of Fiasp®.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
This will be a randomized cross-over blinded study and to see how the 670G pump responds to the introduction of Fiasp® insulin.
Subjects enrolled in the study will have a 2 week period of optimization with weekly assessments of their Carelink download before entering the blinded phase of the study.
They will use their usual home insulin during the optimization phase.
They will then be started on their first blinded insulin (aspart or Fiasp®) which they will use for 2 weeks, before they cross-over to the other insulin.
Study Type
Interventional
Enrollment (Actual)
27
Phase
- Phase 4
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
California
-
Palo Alto, California, United States, 94304
- Stanford University
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Palo Alto, California, United States, 94305
- Stanford
-
-
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
Ages Eligible for Study
18 years and older (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Clinical diagnosis of type 1 diabetes and using 670G pump for at least 1 month, and willing to have the 670G pump downloaded into a Carelink Clinical research database.
- The diagnosis of type 1 diabetes is based on the investigator's judgment; C-peptide level and antibody determinations are not needed.
- Age ≥18 years
- Using Novolog or Fiasp® insulin at time of enrollment
- Willing to use Fiasp® insulin
- Total daily insulin dose is at least 0.3 units/kg/day
- Usual carbohydrate intake is at least 60 grams a day, and willing to have at least 25 grams of carbohydrates for breakfast
- For females, not currently known to be pregnant
- An understanding of and willingness to follow the protocol and sign the informed consent
- Willing to have photographs taken of their infusion sites
- Willing to download their 670G pump every 1-2 weeks to a research Carelink account
- Willingness to answer a brief online questionnaire every 2 weeks
- Must be able to understand spoken or written English
- For subjects participating in Part 2 of this study they will need to be using Fiasp® as part of their usual care
- Hemoglobin A1c between 6 and 10% at the time of enrollment
Exclusion Criteria:
- Pregnant or lactating females
- No hypoglycemic seizure or loss of consciousness in the past 6 months
- Severe episode of DKA in the 6 months prior to study enrollment that was unrelated to an infusion set failure
- No known cardiovascular events in the last 6 months
- No active proliferative diabetic retinopathy
- Known tape allergies
- Current treatment for a seizure disorder
- Cystic fibrosis
- Active infection
- A known medical condition that in the judgment of the investigator might interfere with the completion of the protocol
- Inpatient psychiatric treatment in the past 6 months
- Presence of a known adrenal disorder
- If on antihypertensive, thyroid, anti-depressant or lipid lowering medication, with lack of stability on the medication for the past 2 months prior to enrollment in the study
- Abuse of alcohol
- Dialysis or renal failure
- Known eGFR <60%
Note: Adequately treated thyroid disease and celiac disease do not exclude subjects from enrollment.
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
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: CROSSOVER
- Masking: DOUBLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Fiasp then Novolog
Following a 2-week run-in period for pump-setting adjustments and monitoring, participants 1 will use Fiasp insulin for 2 weeks, followed by Novolog insulin for 2 weeks.
Both the subject and the investigator will be blinded to which group the subject is assigned.
|
Fiasp insulin will be used for 2 weeks with the 670G hybrid closed-loop system
Other Names:
Novolog insulin will be used for 2 weeks with the 670G hybrid closed-loop system
Other Names:
|
EXPERIMENTAL: Novolog then Fiasp
Following a 2-week run-in period for pump-setting adjustments and monitoring, participants 1 will use Novolog insulin for 2 weeks, followed by Fiasp insulin for 2 weeks.
Both the subject and the investigator will be blinded to which group the subject is assigned.
|
Fiasp insulin will be used for 2 weeks with the 670G hybrid closed-loop system
Other Names:
Novolog insulin will be used for 2 weeks with the 670G hybrid closed-loop system
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of Time in Range: Sensor Glucose Values Between 70-180 mg/dl
Time Frame: 7 days (during 2nd half of 2-week intervention period)
|
Measured as percentage of time in range (days).
|
7 days (during 2nd half of 2-week intervention period)
|
Percentage of Time in Range: Sensor Glucose Readings <70 mg/dl
Time Frame: 7 days (during 2nd half of 2-week intervention period)
|
Percentage of time in range (days) as a measure of hypoglycemia.
|
7 days (during 2nd half of 2-week intervention period)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Mean Sensor Glucose in mg/dl
Time Frame: 7 days (during 2nd half of 2-week intervention period)
|
Mean sensor data over the second week of using a randomized, blinded insulin.
|
7 days (during 2nd half of 2-week intervention period)
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Zijlstra E, Demissie M, Graungaard T, Heise T, Nosek L, Bode B. Investigation of Pump Compatibility of Fast-Acting Insulin Aspart in Subjects With Type 1 Diabetes. J Diabetes Sci Technol. 2018 Jan;12(1):145-151. doi: 10.1177/1932296817730375. Epub 2017 Sep 18.
- Bode BW, Johnson JA, Hyveled L, Tamer SC, Demissie M. Improved Postprandial Glycemic Control with Faster-Acting Insulin Aspart in Patients with Type 1 Diabetes Using Continuous Subcutaneous Insulin Infusion. Diabetes Technol Ther. 2017 Jan;19(1):25-33. doi: 10.1089/dia.2016.0350. Epub 2017 Jan 5.
- Hsu L, Buckingham B, Basina M, Ekhlaspour L, von Eyben R, Wang J, Lal RA. Fast-Acting Insulin Aspart Use with the MiniMedTM 670G System. Diabetes Technol Ther. 2021 Jan;23(1):1-7. doi: 10.1089/dia.2020.0083.
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)
July 23, 2018
Primary Completion (ACTUAL)
March 30, 2019
Study Completion (ACTUAL)
March 30, 2019
Study Registration Dates
First Submitted
May 31, 2018
First Submitted That Met QC Criteria
June 12, 2018
First Posted (ACTUAL)
June 13, 2018
Study Record Updates
Last Update Posted (ACTUAL)
August 18, 2021
Last Update Submitted That Met QC Criteria
August 16, 2021
Last Verified
August 1, 2021
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Glucose Metabolism Disorders
- Metabolic Diseases
- Immune System Diseases
- Autoimmune Diseases
- Endocrine System Diseases
- Diabetes Mellitus
- Diabetes Mellitus, Type 1
- Hypoglycemic Agents
- Physiological Effects of Drugs
- Insulin
- Insulin, Globin Zinc
- Insulin Aspart
- Insulin, Long-Acting
- Insulin degludec, insulin aspart drug combination
Other Study ID Numbers
- 46202
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
UNDECIDED
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
Studies a U.S. FDA-regulated device product
No
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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