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CompletedNCT06633965MiniNETUpdated Aug 14, 2025Results posted

Safety and Feasibility Testing of a Smaller Network Version of AIDANET

An interventional study of AIDANET and AIDANET in Type 1 Diabetes, sponsored by Marc Breton. Completed at 1 site in United States. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2025-08-14.

Sponsored by Marc Breton · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
8
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

A randomized 1:1 crossover trial that intends to demonstrate feasibility and safety of the Automated Insulin Delivery as Adaptive NETwork (AIDANET) system run in a new smaller network version, used in full closed loop (FCL) by adults who have been diagnosed with type 1 diabetes (T1D).

Read the detailed description

The study will be performed for about 36 hours at a local hotel. Following the hotel session, participants will undergo a 7 day/6-night Remote Monitored At-Home use session. A one-week control period gathering data on glycemic control and insulin administration with the participants usual care therapy will also be completed. Participants will be randomized 1:1, to either Group A (control period prior to AIDANET use) or Group B (control period after AIDANET use).

02

Conditions studied

  • Type 1 Diabetes

Keywords

  • Type 1 Diabetes
  • Meal Boluses
  • Fully Closed Loop (FCL)
  • AIDANET
03

In context

Diabetes Mellitus, Type 1

3,522 studies on the registry are indexed under Diabetes Mellitus, Type 1; 577 are open to participants now.

This study's enrollment of 8 is below the median of 40 across 2,649 interventional studies indexed under Diabetes Mellitus, Type 1.

Browse Diabetes Mellitus, Type 1 studies →

Lead sponsor

Marc Breton is the lead sponsor of 6 studies on the registry; none are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 5 (100%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Age ≥18.0 and ≤60 years old at time of consent
  2. Clinical diagnosis, based on investigator assessment, of type 1 diabetes for at least one year
  3. Currently using insulin pump for at least three months; Any pump, either open loop or hybrid closed loop may be used.
  4. Currently using insulin for at least six months.
  5. Willingness to switch to use a commercially approved personal insulin (e.g., lispro or aspart, or biosimilar approved products) within the study pump as directed by the study team.
  6. Currently using a Dexcom G6 or G7 CGM.
  7. Has one or more supportive companions knowledgeable about emergency procedures for severe hypoglycemia and able to contact emergency services and study staff that either lives with participant or located within approximately 30 minutes of participant and able to locate participant in the event of an emergency.
  8. Participant not currently known to be pregnant or breastfeeding.
  9. If participant capable of becoming pregnant, must agree to use a form of contraception to prevent pregnancy while a participant in the study (e.g. hormonal contraception, abstinence from heterosexual intercourse). A negative serum or urine pregnancy test will be required for all females of childbearing potential. Participants who become pregnant will be discontinued from the study. Also, participants who during the study develop and express the intention to become pregnant within the timespan of the study will be discontinued.
  10. Willingness to use the study FCL system (CGM, pump, and phone) during the relevant study period.
  11. Willingness not to start any new non-insulin glucose-lowering agent during the course of the trial.
  12. Willingness to participate in all study procedures including the house/hotel session, exercise challenges (e.g., one hour per day during hotel), and to consume approximately 3 unannounced meals per day during the relevant portion of the supervised hotel session.
  13. Access to internet at home and willingness to upload data during the study as needed.
  14. Investigator has confidence that the participant can successfully operate all study devices and is capable of adhering to the protocol.
  15. Participant is proficient in reading and writing English.

Exclusion criteria

Exclusion Criteria:

  1. Plans to start a new non-insulin glucose-lowering agent (e.g., GLP-1 receptor agonists, Symlin, DPP-4 inhibitors, sulfonylureas). Participants may be on a stable dose of such an agent for at least the past month.
  2. Current use of an SGLT-2 or SGLT-1/2 inhibitor due to risk of euglycemic DKA.
  3. Hemophilia or any other bleeding disorder.
  4. History of severe hypoglycemic events with seizure or loss of consciousness in the last 12 months.
  5. History of DKA event in the last 12 months.
  6. History of chronic renal disease (Stage 4 or unstable Stage 3b per investigator judgment) or currently on peritoneal or hemodialysis.
  7. History of adrenal insufficiency.
  8. Currently being treated for a seizure disorder.
  9. Hypothyroidism or hyperthyroidism that is not adequately treated.
  10. Coronary artery disease or other heart condition that would prevent participation in moderate intensity exercise.
  11. Use of oral or injectable steroids at the time of enrollment or within the last 4 weeks.
  12. Planned surgery during the study period.
  13. Known ongoing adhesive intolerance that is not well managed.
  14. A condition, which in the opinion of the investigator or designee, would put the participant or study at risk.
  15. Participation in another interventional trial at the time of enrollment.
  16. Participant with a direct supervisor involved in the conduct of the trial.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
8 participants (actual)

Study arms

  • Active comparator
    Usual Care→AIDANET

    Participants will complete 7 days/6 nights at home usual care period using their personal equipment. Participants will then use the AIDANET system during a 3 days/2 nights hotel admission. Participants will continue to use the AIDANET system at home for 7 days/6 nights.

    Device: AIDANET

  • Active comparator
    AIDANET→Usual Care

    Participants will use AIDANET system during a 3 days/2 nights hotel admission. Participants will continue to use the AIDANET system at home for 7 days/6 nights and then will complete 7 days/6 nights at home usual care period using their personal equipment.

    Device: AIDANET

Interventions

  • DeviceAIDANET

    AIDANET is a fully automated, utilizing a Bolus Priming System (BPS) that recognizes meal ingestion and delivers a quick priming dose of insulin prior to extreme blood sugar excursions.

    Also known as: Group B

  • DeviceAIDANET

    AIDANET is a fully automated, utilizing a Bolus Priming System (BPS) that recognizes meal ingestion and delivers a quick priming dose of insulin prior to extreme blood sugar excursions.

    Also known as: Group A

06

What researchers measure

Primary outcomes

  1. Change in the Mean Continuous Glucose Monitor (CGM) Between the Week of the Usual Care Observational Period and the Week of AIDANET At-Home.

    This study represents a small pilot study to assess the safety and efficacy of the small-version AIDANET system and is not formally powered. Nevertheless, the randomized crossover design will allow for analysis of period effects between Group A and Group B. Comparison between these groups will be made to determine if a period effect can explain part of the benefit of the FCL system during the at-home period.

    Time frame: 2 weeks

Secondary outcomes

  1. Difference in Percent Time-in-range

    Difference in percent CGM samples in 70-180 mg/dL between the Week of the Usual Care Observational Period and the Week of AIDANET At-home. Represented as AIDANET minus Usual Care.

    Time frame: 2 weeks

  2. Difference in Percent Time-below-range

    Difference in CGM percent samples \< 70mg/dL between the Week of the Usual Care Observational Period and the Week of AIDANET At-home. Represented as AIDANET minus Usual Care.

    Time frame: 2 weeks

  3. Difference in Percent Time-in-tight-range

    Difference in percent CGM samples in 70-140 mg/dL between the Week of the Usual Care Observational Period and the Week of AIDANET At-home. Represented as AIDANET minus Usual Care.

    Time frame: 2 weeks

07

Results

Posted Aug 14, 2025
Limitations and caveats
This study represents a small pilot study to assess the safety and efficacy of the small-version AIDANET system and is not formally powered.

Participant flow

Participant flow — Overall Study
MilestoneUsual Care→AIDANETAIDANET→Usual Care
Started43
Completed42
Not completed01
Withdrew: Withdrawal by subject01

Outcome measures

PrimaryChange in the Mean Continuous Glucose Monitor (CGM) Between the Week of the Usual Care Observational Period and the Week of AIDANET At-Home.

This study represents a small pilot study to assess the safety and efficacy of the small-version AIDANET system and is not formally powered. Nevertheless, the randomized crossover design will allow for analysis of period effects between Group A and Group B. Comparison between these groups will be made to determine if a period effect can explain part of the benefit of the FCL system during the at-home period.

Time frame:
2 weeks
Reported as:
Mean · miligrams per deciliter
Change in the Mean Continuous Glucose Monitor (CGM) Between the Week of the Usual Care Observational Period and the Week of AIDANET At-Home.
miligrams per deciliterUsual Care→AIDANETAIDANET→Usual Care
Change in the Mean Continuous Glucose Monitor (CGM) Between the Week of the Usual Care Observational Period and the Week of AIDANET At-Home.-6.8 ± 15.1-2.1 ± 20.7
SecondaryDifference in Percent Time-in-range

Difference in percent CGM samples in 70-180 mg/dL between the Week of the Usual Care Observational Period and the Week of AIDANET At-home. Represented as AIDANET minus Usual Care.

Time frame:
2 weeks
Reported as:
Mean · percentage of time-in-range
Difference in Percent Time-in-range
percentage of time-in-rangeUsual Care→AIDANETAIDANET→Usual Care
Difference in Percent Time-in-range1.55 ± 4.342.76 ± 10.6
SecondaryDifference in Percent Time-below-range

Difference in CGM percent samples \< 70mg/dL between the Week of the Usual Care Observational Period and the Week of AIDANET At-home. Represented as AIDANET minus Usual Care.

Time frame:
2 weeks
Reported as:
Mean · percentage of time-below-range
Difference in Percent Time-below-range
percentage of time-below-rangeUsual Care→AIDANETAIDANET→Usual Care
Difference in Percent Time-below-range0.93 ± 2.100.06 ± 0.45
SecondaryDifference in Percent Time-in-tight-range

Difference in percent CGM samples in 70-140 mg/dL between the Week of the Usual Care Observational Period and the Week of AIDANET At-home. Represented as AIDANET minus Usual Care.

Time frame:
2 weeks
Reported as:
Mean · percentage of time-in-tight-range
Difference in Percent Time-in-tight-range
percentage of time-in-tight-rangeUsual Care→AIDANETAIDANET→Usual Care
Difference in Percent Time-in-tight-range1.69 ± 10.714.01 ± 7.19

Adverse events

Collected over 24 days. Three days of hotel use with AIDANET followed by 7 days of AIDANET use at home, and 14 days of Usual Care. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Usual Care→AIDANET0/4 (0%)0/4 (0%)0/4 (0%)
AIDANET→Usual Care0/2 (0%)0/2 (0%)0/2 (0%)

Baseline characteristics

One subject withdrew prior to study intervention. Results were only analyzed for subjects who started data collection.

Age, Categorical
Age, Categorical(Participants)Usual Care→AIDANETAIDANET→Usual CareTotal
<=18 years000
Between 18 and 65 years426
>=65 years000
Age, Continuous
Age, Continuous(years)Usual Care→AIDANETAIDANET→Usual CareTotal
Mean42.2 ± 6.536.5 ± 8.540.3 ± 7.7
Sex: Female, Male
Sex: Female, Male(Participants)Usual Care→AIDANETAIDANET→Usual CareTotal
Female213
Male213
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Usual Care→AIDANETAIDANET→Usual CareTotal
Hispanic or Latino000
Not Hispanic or Latino426
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Usual Care→AIDANETAIDANET→Usual CareTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American000
White426
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(Participants)Usual Care→AIDANETAIDANET→Usual CareTotal
United States426
Percentage of HbA1c (%)
Percentage of HbA1c (%)(percentage)Usual Care→AIDANETAIDANET→Usual CareTotal
Mean7.1 ± 0.57.3 ± 0.17.17 ± 0.41
Weight (kg)
Weight (kg)(kilograms)Usual Care→AIDANETAIDANET→Usual CareTotal
Mean81.3 ± 17.587.5 ± 0.583.4 ± 14.6

4 further baseline measures are reported on the registry.

08

Study locations

1 site
  • University of Virginia
    Charlottesville, Virginia 22904, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Oct 25, 2024
  • Informed consent form · Nov 12, 2024

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Yes — Will follow the NIH Data Sharing Policy and Implementation Guidance on sharing research resources for research purposes to qualified individuals in the scientific community.

Supporting information: Study protocol, Sap, Icf

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 14, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT06633965
Lead sponsor
Marc Breton
Collaborators
Tandem Diabetes Care, Inc., DexCom, Inc.
Responsible party
Marc Breton (Professor, University of Virginia) — Sponsor-investigator
First posted
Oct 9, 2024
Start date
Nov 20, 2024
Primary completion
Dec 16, 2024
Completion
Dec 18, 2024
Results posted
Aug 14, 2025
Last update
Aug 14, 2025

Study contacts

Sue Brown, MD
principal investigator · University of Virginia Center for Diabetes Technology

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2025. You cannot join it, but the record below documents what was studied.

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