Trial Outcomes & Findings for DailyDose Smart Snack Study for T1D on MDI (NCT NCT05967260)

NCT ID: NCT05967260

Last Updated: 2025-05-31

Results Overview

An episode of overnight hypoglycemia is counted if sensor glucose is \<70 mg/dL for at least two measurements during an eight-hour period following announced bedtime. This is assessed by number of episodes divided by total number of nights.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

21 participants

Primary outcome timeframe

8 weeks (4-week control period vs. 4-week intervention period)

Results posted on

2025-05-31

Participant Flow

Participant milestones

Participant milestones
Measure
Control to Intervention
The randomization order for participants in this arm was Dexcom G6 CGM (control) followed by DailyDose Smart Snack (intervention). Each arm was 4 weeks long.
Intervention to Control
The randomization order for participants in this arm was DailyDose Smart Snack (intervention) followed by Dexcom G6 CGM (control). Each arm was 4 weeks long.
First Rest Period (1-12 Weeks)
STARTED
10
11
First Rest Period (1-12 Weeks)
COMPLETED
10
10
First Rest Period (1-12 Weeks)
NOT COMPLETED
0
1
First Arm Start-up Visit (4 Weeks)
STARTED
10
10
First Arm Start-up Visit (4 Weeks)
COMPLETED
10
9
First Arm Start-up Visit (4 Weeks)
NOT COMPLETED
0
1
Second Rest Period (1-4 Weeks)
STARTED
10
10
Second Rest Period (1-4 Weeks)
COMPLETED
10
10
Second Rest Period (1-4 Weeks)
NOT COMPLETED
0
0
Second Arm Start-up Visit
STARTED
10
10
Second Arm Start-up Visit
COMPLETED
9
10
Second Arm Start-up Visit
NOT COMPLETED
1
0
Third Rest Period (1-2 Weeks)
STARTED
9
10
Third Rest Period (1-2 Weeks)
COMPLETED
9
10
Third Rest Period (1-2 Weeks)
NOT COMPLETED
0
0
Study Completion Visit
STARTED
9
10
Study Completion Visit
COMPLETED
9
10
Study Completion Visit
NOT COMPLETED
0
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Control to Intervention
The randomization order for participants in this arm was Dexcom G6 CGM (control) followed by DailyDose Smart Snack (intervention). Each arm was 4 weeks long.
Intervention to Control
The randomization order for participants in this arm was DailyDose Smart Snack (intervention) followed by Dexcom G6 CGM (control). Each arm was 4 weeks long.
First Arm Start-up Visit (4 Weeks)
Dexcom CGM failed while participant out of town without ability to receive a replacement
0
1

Baseline Characteristics

DailyDose Smart Snack Study for T1D on MDI

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Control to Intervention
n=10 Participants
The randomization order for participants in this arm was Dexcom G6 CGM (control) followed by DailyDose Smart Snack (intervention). Each arm was 4 weeks long.
Intervention to Control
n=11 Participants
The randomization order for participants in this arm was DailyDose Smart Snack (intervention) followed by Dexcom G6 CGM (control). Each arm was 4 weeks long.
Total
n=21 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
9 Participants
n=5 Participants
10 Participants
n=7 Participants
19 Participants
n=5 Participants
Age, Categorical
>=65 years
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Age, Continuous
41.2 years
STANDARD_DEVIATION 14.6 • n=5 Participants
37 years
STANDARD_DEVIATION 15.1 • n=7 Participants
39 years
STANDARD_DEVIATION 14.7 • n=5 Participants
Sex: Female, Male
Female
3 Participants
n=5 Participants
7 Participants
n=7 Participants
10 Participants
n=5 Participants
Sex: Female, Male
Male
7 Participants
n=5 Participants
4 Participants
n=7 Participants
11 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
2 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
White
9 Participants
n=5 Participants
7 Participants
n=7 Participants
16 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
10 participants
n=5 Participants
11 participants
n=7 Participants
21 participants
n=5 Participants

PRIMARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

An episode of overnight hypoglycemia is counted if sensor glucose is \<70 mg/dL for at least two measurements during an eight-hour period following announced bedtime. This is assessed by number of episodes divided by total number of nights.

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Probability of Overnight Hypoglycemia
23.6 percentage of nights
Standard Deviation 15.6
26.0 percentage of nights
Standard Deviation 14.1

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Number of hours until first CGM measurement \<70 mg/dL when CGM remains \< 70 mg/dL for at least 10 minutes.

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Time to the First Overnight Low-glucose Event (<70 mg/dL)
2.8 hours
Standard Deviation 1.4
3.3 hours
Standard Deviation 1.4

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Assess the mean percentage of time that the Dexcom G6 reported sensor glucose values are less than 54 mg/dL overnight (announced bedtime + 8 hours).

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Percentage of Time With Sensed Glucose Less Than 54 mg/dL (Overnight)
1.0 percentage of time
Standard Deviation 1.5
1.3 percentage of time
Standard Deviation 3.2

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Assess the mean percentage of time that the Dexcom G6 reported sensor glucose values are less than 54 mg/dL across the full 24-hour/day study duration.

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Percentage of Time With Sensed Glucose Less Than 54 mg/dL (24-hour/Day Study Duration)
0.7 percentage of time
Standard Deviation 0.7
0.7 percentage of time
Standard Deviation 1.0

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Assess the mean percentage of time that the Dexcom G6 reported sensor glucose values are less than 70 mg/dL overnight (announced bedtime + 8 hours).

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Percentage of Time With Sensed Glucose Less Than 70 mg/dL (Overnight)
4.2 percentage of time
Standard Deviation 3.8
4.7 percentage of time
Standard Deviation 5.5

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Assess the mean percentage of time that the Dexcom G6 reported sensor glucose values are less than 70 mg/dL across the 24-hour/day study duration.

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Percentage of Time With Sensed Glucose Less Than 70 mg/dL (24-hour/Day Study Duration)
3.2 percentage of time
Standard Deviation 1.8
3.1 percentage of time
Standard Deviation 2.3

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Assess the mean percentage of time that the Dexcom G6 reported sensor glucose values are between 70 and 180 mg/dL overnight (announced bedtime + 8 hours).

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Percentage of Time With Sensed Glucose Between 70-180 mg/dL (Overnight)
64.0 percentage of time
Standard Deviation 14.4
61.8 percentage of time
Standard Deviation 14.8

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Assess the mean percentage of time that the Dexcom G6 reported sensor glucose values are between 70 and 180 mg/dL across the full 24-hour/day study duration.

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Percentage of Time With Sensed Glucose Between 70-180 mg/dL (24-hour/Day Study Duration)
63.9 percentage of time
Standard Deviation 14.9
61.4 percentage of time
Standard Deviation 16.5

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Assess the mean percentage of time that the Dexcom G6 reported sensor glucose values are greater than 180 mg/dL overnight (announced bedtime + 8 hours).

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Percentage of Time With Sensed Glucose Greater Than 180 mg/dL (Overnight)
31.7 percentage of time
Standard Deviation 15.6
33.5 percentage of time
Standard Deviation 16.1

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Assess the mean percentage of time that the Dexcom G6 reported sensor glucose values are greater than 180 mg/dL across the full 24-hour/day study duration.

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Percentage of Time With Sensed Glucose Greater Than 180 mg/dL (24-hour/Day Study Duration)
32.8 percentage of time
Standard Deviation 15.3
35.5 percentage of time
Standard Deviation 16.6

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Assess the mean percentage of time that the Dexcom G6 reported sensor glucose values are greater than 250 mg/dL overnight (announced bedtime + 8 hours).

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Percentage of Time Sensed Glucose Greater Than 250 mg/dL (Overnight)
10.2 percentage of time
Standard Deviation 8.9
9.7 percentage of time
Standard Deviation 9.0

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Assess the mean percentage of time that the Dexcom G6 reported sensor glucose values are greater than 250 mg/dL across the full 24-hour/day study duration.

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Percentage of Time Sensed Glucose Greater Than 250 mg/dL (24-hour/Day Study Duration)
10.4 percentage of time
Standard Deviation 9.5
11.3 percentage of time
Standard Deviation 10.8

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Assess the mean reported sensor glucose values overnight (announced bedtime + 8 hours) using the Dexcom sensor.

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Mean Sensed Glucose (Overnight)
159.0 mg/dL
Standard Deviation 25.1
160.4 mg/dL
Standard Deviation 26.5

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Assess the mean reported sensor glucose values across the full 24-hour/day study duration using the Dexcom sensor.

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Mean Sensed Glucose (24-hour/Day Study Duration)
161.9 mg/dL
Standard Deviation 24.2
165.2 mg/dL
Standard Deviation 27.3

SECONDARY outcome

Timeframe: 4 weeks of control period

Assessment of accuracy of the overnight low glucose prediction algorithm by sensitivity. This is measured by the number of true positives that the algorithm predicts hypoglycemia overnight divided by all of the hypoglycemic events.

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Accuracy of Overnight Low Glucose Prediction by Sensitivity
71.6 percentage of true positive events

SECONDARY outcome

Timeframe: 4 weeks of control period

Assessment of accuracy of the overnight low glucose prediction algorithm by specificity. This is measured by calculating 1.0 minus the false positive rate for overnight hypoglycemia prediction.

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Accuracy of Overnight Low Glucose Prediction by Specificity
56.8 percentage of true negative events

SECONDARY outcome

Timeframe: 8 weeks (4-week control period vs. 4-week intervention period)

Asses mean weight change from start to end of each arm.

Outcome measures

Outcome measures
Measure
Intervention
n=20 Participants
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly. DailyDose Smart Snack app: A decision support tool that predicts the likelihood of overnight low blood sugar based on current CGM and inputted exercise. App will recommend a snack at bedtime based on the minimum low glucose predicted and the time of the low glucose.
Control
n=20 Participants
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly. Dexcom G6 CGM: A commercially available Continuous Glucose Monitoring system that utilizes a transmitter and sensor to measure sensor glucose levels that transmit to a smart phone app.
Change in Weight
-2.1 kg
Standard Deviation 3.0
-0.7 kg
Standard Deviation 1.3

Adverse Events

Active Comparator: Control

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Experimental: Intervention

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Active Comparator: Control
n=20 participants at risk
Participants will wear Dexcom G6 CGM and will manage their glucose as usual. Participants will be asked to wear a smart watch overnight to collect sleep metrics, weigh themselves weekly in the morning before eating, and answer a one-item sleep quality scale survey weekly.
Experimental: Intervention
n=20 participants at risk
Participants will use the DailyDose Smart Snack smart phone application which contains an AI-based model that predicts the likelihood of overnight low glucose at bedtime every night and will recommend a personalized snack to help avoid nocturnal hypoglycemia. The nutritional content of the snack (carbohydrate, protein, fat, etc.) will be dependent on the predicted overnight minimum glucose and the predicted time of the minimum overnight glucose level. During this arm, participants will also be asked to wear a smart watch overnight, weigh themselves weekly, and answer a one-item sleep quality scale survey weekly.
Infections and infestations
Upper respiratory infection
0.00%
0/20 • Up to 8 weeks
All participants that began/started the first rest period after randomization are included in the adverse events. The numbers from the participant flow indicate that 21 subjects began the first rest period.
5.0%
1/20 • Number of events 1 • Up to 8 weeks
All participants that began/started the first rest period after randomization are included in the adverse events. The numbers from the participant flow indicate that 21 subjects began the first rest period.
Infections and infestations
Acute sinusitis
5.0%
1/20 • Number of events 1 • Up to 8 weeks
All participants that began/started the first rest period after randomization are included in the adverse events. The numbers from the participant flow indicate that 21 subjects began the first rest period.
0.00%
0/20 • Up to 8 weeks
All participants that began/started the first rest period after randomization are included in the adverse events. The numbers from the participant flow indicate that 21 subjects began the first rest period.

Additional Information

Clara Mosquera-Lopez

Oregon Health & Science University

Phone: 503--418-4129

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place