Skip to content

A Study to Assess the Effect of Smart Insulin Pens on Glycemic Control and Diabetes-related Burdens

Smart Insulin Pens: A Randomized, Crossover Prospective Interventional Pilot Study Assessing the Effect on Glycemic Control and Diabetes Related Burdens

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05036343
Enrollment
13
Registered
2021-09-05
Start date
2021-09-14
Completion date
2022-11-30
Last updated
2024-01-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Type 1 Diabetes

Keywords

Adolescents, Young Adults, Continuous Glucose monitoring (CGM)

Brief summary

The purpose of this study is to see if the use of the InPen® for teens and young adults up to age 21 years with type 1 diabetes helps to decrease burden and improve glycemic control.

Detailed description

Investigators will perform a randomized, cross-over prospective interventional study. Half of the participants will be randomized to the InPen® and the other half will continue with their conventional insulin injection protocol. After 90 days, participants will switch to the second arm. Randomization will occur via block randomization. Teaching to use the InPen® will be done by Sarah Jackson, DO with supervision by Ana Creo, MD, which can be done by a telemedicine visit if it does not align with clinic visit. You will be followed for three months with hemoglobin A1c at the beginning and the end of the study. Data from the (Continuous Glucose Monitor (CGM) and InPen® will be analyzed including time in glucose goal range (70-180 mg/dL), glucose standard deviation, percentage of time that is spent high (\>180-250 mg/dL), very high(\> 250 mg/dL), low(54-70 mg/dL) and very low(\<54 mg/dL), along with total daily insulin dose. Data on missed insulin doses will be assessed via data from the InPen®. You will be randomized to traditional injections we will ask them to record missed insulin doses weekly. You should still adjust insulin doses at home, like they do at baseline. If insulin adjustments are made while in one arm of the study they should still continue that dosing when they cross over. Investigators will also assess quality of life and fatigue related to technology with surveys prior to start of the study and at the end. Specifically, investigators will assess diabetes distress, transition readiness, and parental experience of childhood illness scales. Investigators will also utilize the insulin delivery satisfaction survey to assess how you view your current regimen and then how you view the effects of the InPen in managing your type 1 diabetes.

Interventions

DEVICEInPen®

A smartpen that has been FDA approved for children with diabetes age seven years and older that uses an app on a smartphone to help calculate insulin doses using the amount of carbohydrates that will be consumed at a meal along with what the current blood sugar reading is, to give a correction dose as well. The InPen app also serves as a log book to record insulin doses given, blood sugar at the time of a meal, and amount of carbohydrate eaten.

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
13 Years to 21 Years
Healthy volunteers
No

Inclusion criteria

* Individuals between the ages of 13 and 21 years. * Patients with Type 1 diabetes for at least 6 months * Defined as either a c peptide \<1 , one or more positive diabetes autoantibodies, or a clinical diagnosis with age of onset prior to puberty * Patients who currently receive insulin injections with a CGM. * English speaking. * Have access to a smart phone. on an insulin to carbohydrate ratio

Exclusion criteria

* Individuals less than 13 * Non-English speaking. * No access to a smart phone. * Intellectual disability that would impact their ability to utilize the technology * Known pregnant women taking chronic steroids (equivalent equal to or greater then 5mg of prednisone daily)

Design outcomes

Primary

MeasureTime frameDescription
Glucose Time in Range3 monthsThe percentage of time that glucose readings are in goal range (70-180 mg/dL)
InPen® Missed Insulin Injections30 and 90 daysNumber of missed insulin injections after 30 and 90 days of InPen and CGM
Change in Hemoglobin A1cBaseline, 3 monthsHemoglobin is a protein within red blood cells. As glucose enters the bloodstream, it binds to hemoglobin, or glycates. The more glucose that enters the bloodstream, the higher the amount of glycated hemoglobin. An A1C level below 5.7 percent is considered normal. Unit of measure = percent of glycated hemoglobin
Glucose3 monthsMean glucose levels at 6 months. Sugar in the form of glucose in the blood. The concentration of glucose in the blood. A healthy normal range is 70 to 99 mg/dL

Secondary

MeasureTime frameDescription
Change in Transition ReadinessBaseline, 3 monthsMean change in transition readiness as measured by using the Transition Readiness Assessment Questionnaire (TRAQ). A 20-item questionnaire assessing the skill levels that are important for transition to adult health care; using a scale of 1 = No, I do not know how, 5 = Yes, I always do this when I need to. Total scores range from 20 - 100, lower scores indicating lower readiness and higher scores indicating greater readiness.
Change in Self-Efficacy for Managing Chronic Conditions - Managing Medications and Treatment ScoreBaseline, 3 monthsMeasured using the Self-Efficacy for Managing Chronic Conditions - Managing Medications and Treatment questionnaire. A 14-item questionnaire rating the confidence level for managing chronic conditions, medications and treatment; using a scale of 1 = I am not at all confident, 5 = I am very confident. Total scores range from 14-70, lower scores indicating lower confidence and higher scores indicating higher confidence.
Change in Diabetes Distress Scale ScoreBaseline, 3 monthsMeasured using the Diabetes Distress Scale (DDS) which identifies 17 potential problem areas that people with diabetes may experience and asked subjects to rate their perceived degree of distressed during the past month; using a scale of 1 = Not a problem at all, 6 = A very serious problem. Total scores range from 17-102, lower scores indicating less distress and higher scores indicating more distress

Countries

United States

Participant flow

Participants by arm

ArmCount
InPen® and CGM, Then Standard of Care and CGM
Adolescents and young adults (13-21 years) identified with having type 1 diabetes and currently receiving insulin injections with a continuous glucose monitor (CGM) used the InPen® and CMG for the first 90 days then switched to standard of care with traditional insulin injections and CMG for 90 days. InPen®: A smartpen that has been FDA approved for children with diabetes age seven years and older that uses an app on a smartphone to help calculate insulin doses using the amount of carbohydrates that will be consumed at a meal along with what the current blood sugar reading is, to give a correction dose as well. The InPen app also serves as a log book to record insulin doses given, blood sugar at the time of a meal, and amount of carbohydrate eaten.
5
Standard of Care and CGM, Then InPen® and CGM
Adolescents and young adults (13-21 years) identified with having type 1 diabetes and currently receiving insulin injections with a continuous glucose monitor (CGM) received standard of care with traditional insulin injections and CMG for first 90 days then switched to the InPen® and CMG for 90 days. InPen®: A smartpen that has been FDA approved for children with diabetes age seven years and older that uses an app on a smartphone to help calculate insulin doses using the amount of carbohydrates that will be consumed at a meal along with what the current blood sugar reading is, to give a correction dose as well. The InPen app also serves as a log book to record insulin doses given, blood sugar at the time of a meal, and amount of carbohydrate eaten.
8
Total13

Baseline characteristics

CharacteristicStandard of Care and CGM, Then InPen® and CGMTotalInPen® and CGM, Then Standard of Care and CGM
Age, Continuous15.9 years
STANDARD_DEVIATION 1.89
15.9 years
STANDARD_DEVIATION 1.6
16.0 years
STANDARD_DEVIATION 1.22
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
United States
8 participants13 participants5 participants
Sex: Female, Male
Female
2 Participants2 Participants0 Participants
Sex: Female, Male
Male
6 Participants11 Participants5 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 130 / 13
other
Total, other adverse events
0 / 130 / 13
serious
Total, serious adverse events
0 / 130 / 13

Outcome results

Primary

Change in Hemoglobin A1c

Hemoglobin is a protein within red blood cells. As glucose enters the bloodstream, it binds to hemoglobin, or glycates. The more glucose that enters the bloodstream, the higher the amount of glycated hemoglobin. An A1C level below 5.7 percent is considered normal. Unit of measure = percent of glycated hemoglobin

Time frame: Baseline, 3 months

ArmMeasureValue (MEAN)Dispersion
InPen® and Continues Glucose Monitoring (CGM)Change in Hemoglobin A1c-0.1 percent of glycated hemoglobinStandard Deviation 0.6
Standard of Care and Continues Glucose Monitoring (CGM)Change in Hemoglobin A1c-0.3 percent of glycated hemoglobinStandard Deviation 0.7
Primary

Glucose

Mean glucose levels at 6 months. Sugar in the form of glucose in the blood. The concentration of glucose in the blood. A healthy normal range is 70 to 99 mg/dL

Time frame: 3 months

ArmMeasureValue (MEDIAN)
InPen® and Continues Glucose Monitoring (CGM)Glucose198 mg/dL
Standard of Care and Continues Glucose Monitoring (CGM)Glucose180 mg/dL
Primary

Glucose Time in Range

The percentage of time that glucose readings are in goal range (70-180 mg/dL)

Time frame: 3 months

ArmMeasureValue (MEAN)Dispersion
InPen® and Continues Glucose Monitoring (CGM)Glucose Time in Range46 percentage of time in rangeStandard Deviation 22
Standard of Care and Continues Glucose Monitoring (CGM)Glucose Time in Range49 percentage of time in rangeStandard Deviation 20
Primary

InPen® Missed Insulin Injections

Number of missed insulin injections after 30 and 90 days of InPen and CGM

Time frame: 30 and 90 days

Population: Only InPen \& CGM subjects data were collected and analyzed for this outcome measure.

ArmMeasureGroupValue (MEAN)Dispersion
InPen® and Continues Glucose Monitoring (CGM)InPen® Missed Insulin Injections30 days51.2 missed insulin injectionsStandard Deviation 26.3
InPen® and Continues Glucose Monitoring (CGM)InPen® Missed Insulin Injections90 days212.6 missed insulin injectionsStandard Deviation 76.1
Secondary

Change in Diabetes Distress Scale Score

Measured using the Diabetes Distress Scale (DDS) which identifies 17 potential problem areas that people with diabetes may experience and asked subjects to rate their perceived degree of distressed during the past month; using a scale of 1 = Not a problem at all, 6 = A very serious problem. Total scores range from 17-102, lower scores indicating less distress and higher scores indicating more distress

Time frame: Baseline, 3 months

ArmMeasureValue (MEAN)Dispersion
InPen® and Continues Glucose Monitoring (CGM)Change in Diabetes Distress Scale Score-0.038 score on a scaleStandard Deviation 0.231
Standard of Care and Continues Glucose Monitoring (CGM)Change in Diabetes Distress Scale Score0.075 score on a scaleStandard Deviation 0.283
Secondary

Change in Self-Efficacy for Managing Chronic Conditions - Managing Medications and Treatment Score

Measured using the Self-Efficacy for Managing Chronic Conditions - Managing Medications and Treatment questionnaire. A 14-item questionnaire rating the confidence level for managing chronic conditions, medications and treatment; using a scale of 1 = I am not at all confident, 5 = I am very confident. Total scores range from 14-70, lower scores indicating lower confidence and higher scores indicating higher confidence.

Time frame: Baseline, 3 months

ArmMeasureValue (MEAN)Dispersion
InPen® and Continues Glucose Monitoring (CGM)Change in Self-Efficacy for Managing Chronic Conditions - Managing Medications and Treatment Score0.058 score on a scaleStandard Deviation 0.464
Standard of Care and Continues Glucose Monitoring (CGM)Change in Self-Efficacy for Managing Chronic Conditions - Managing Medications and Treatment Score0.074 score on a scaleStandard Deviation 0.514
Secondary

Change in Transition Readiness

Mean change in transition readiness as measured by using the Transition Readiness Assessment Questionnaire (TRAQ). A 20-item questionnaire assessing the skill levels that are important for transition to adult health care; using a scale of 1 = No, I do not know how, 5 = Yes, I always do this when I need to. Total scores range from 20 - 100, lower scores indicating lower readiness and higher scores indicating greater readiness.

Time frame: Baseline, 3 months

ArmMeasureValue (MEAN)Dispersion
InPen® and Continues Glucose Monitoring (CGM)Change in Transition Readiness0.149 score on a scaleStandard Deviation 0.785
Standard of Care and Continues Glucose Monitoring (CGM)Change in Transition Readiness-0.029 score on a scaleStandard Deviation 0.739

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026