Safety Evaluation of an Advanced Hybrid Closed Loop System Using Lyumjev With the Tandem t:Slim X2 Insulin Pump With Control-IQ Technology in Adults, Adolescents and Children With Type 1 Diabetes

NCT ID: NCT05403502

Last Updated: 2024-07-26

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

183 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-08-31

Study Completion Date

2023-08-02

Brief Summary

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Prospective, multi-center, single-arm study in adults and children ages 6 to 80 with type 1 diabetes to evaluate the safety of Lyumjev with Control-IQ technology to achieve labeling updates for Lyumjev and the t:slim X2 insulin pump.

Detailed Description

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This is a prospective, multi-center, single-arm study in adults and children (ages 6 to 80 years) with type 1 diabetes who are current users of the t:slim X2 insulin pump with Control-IQ technology to achieve labeling updates for Lyumjev and the t:slim X2 insulin pump. After a run-in period, participants will use the study pump with Control-IQ technology 1.5 and Lyumjev insulin for a 3-month outpatient treatment period. Up to 200 participants will be enrolled so at least 160 complete the study.

Conditions

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Type 1 Diabetes

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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t:slim X2 insulin pump with Control-IQ technology utilizing insulin Lyumjev®

Current Control-IQ technology users with type 1 diabetes, age 6-80, will use the t:slim X2 insulin pump with Control-IQ technology 1.5 and Lyumjev insulin for 3-months of outpatient use.

Group Type EXPERIMENTAL

t:slim X2 insulin pump with Control-IQ technology 1.5

Intervention Type DEVICE

t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor, used with Lyumjev® insulin.

Interventions

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t:slim X2 insulin pump with Control-IQ technology 1.5

t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor, used with Lyumjev® insulin.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Age 6 to \<81 years
2. Diagnosis of type 1 diabetes for at least 1 year
3. Currently using Control-IQ technology for at least 3 months, with CGM data recorded indicative of system use (active closed loop) for at least 85% of the possible time in 14 days prior to enrollment
4. Total daily insulin dose (TDD) at least 2 U/day
5. HbA1c \< 10.5%
6. Residing full-time in the United States, with no anticipated travel outside the United States during the period of study participation.
7. For participants \<18 years old, living with one or more parent/legal guardian knowledgeable about emergency procedures for severe hypoglycemia and able to contact the participant in case of an emergency, and willing to use the Dexcom Follow app (with push notifications turned on) for the duration of the study.
8. If \>18 years old, participant has someone who lives within 30 minutes of them who is willing to be contacted if the study team can't reach the participant in case of a suspected medical emergency.
9. Participant has agreed to participate in the study; and has read, understood and signed the informed consent form (ICF) and assent, if applicable; and has agreed to follow all study procedures, including:

1. suspending use of any personal CGM for the duration of the clinical trial once the study CGM is in use
2. switching to or continuing to use Humalog during the lead-in period
3. switching to Lyumjev for the main study period.
4. willing and able to perform the study exercise and meal challenges.
10. Investigator has confidence that the participant can successfully operate all study devices and is capable of adhering to the protocol, including ability to respond to alerts and alarms, and to provide basic diabetes self-management.
11. Participant and/or parent/legal guardian have the ability to read and understand English

Exclusion Criteria

1. More than 1 episode of diabetic ketoacidosis (DKA) in the past 6 months
2. More than 1 episode of severe hypoglycemia (needing assistance) in the past 6 months
3. Inpatient psychiatric treatment in the past 6 months
4. History of drug abuse (defined as any illicit drug use) or history of alcohol abuse prior to screening or unwillingness to agree to abstain from illicit drugs throughout the study.
5. For Female: Currently pregnant or planning to become pregnant during the time period of study participation

1. A negative pregnancy test will be required for all females of child-bearing potential (menarchal)
2. Counseling on appropriate birth control options will be provided to females with child-bearing potential in the event the participant does not have an acceptable plan.
6. Adults lacking the capacity to provide consent and/or follow study procedures in the opinion of the investigator
7. Concurrent use of any non-insulin glucose-lowering agent, other than metformin (for example, GLP-1 agonists, Symlin, DPP-4 inhibitors, SGLT-2 inhibitors, sulfonylureas).
8. Hemophilia or any other bleeding disorder
9. Hemoglobinopathy
10. History of heart, liver, lung or kidney disease determined by investigator to interfere with the study
11. History of allergic reaction to Humalog or Lyumjev
12. Use of glucocorticoids, beta blockers or other medications determined by investigator to interfere with study
13. Abnormal screening electrocardiogram consistent with increased risk during exercise, such as arrhythmia, ischemia, or prolonged QTc interval (\>450 ms) (Screening ECG only required for participants age \> 50 years, duration of diabetes \> 20 years, or history of coronary artery disease)
14. Significant chronic kidney disease (which could impact CGM accuracy in investigator's judgment) or hemodialysis
15. History of adrenal insufficiency
16. History of abnormal TSH consistent with hypothyroidism or hyperthyroidism that is not appropriately treated
17. History of gastroparesis
18. A condition, which in the opinion of the investigator or designee, would put the participant or study at risk
19. Participation in another pharmaceutical or device trial at the time of enrollment or anticipated for during the time period of study participation
20. Employed by, or having immediate family members employed by Tandem Diabetes Care, Inc., Eli Lilly and Co., or TypeZero Technologies, LLC, or having a direct supervisor at place of employment who is also directly involved in conducting the clinical trial (as a study investigator, coordinator, etc.); or having a first-degree relative who is directly involved in conducting the clinical trial
Minimum Eligible Age

6 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Eli Lilly and Company

INDUSTRY

Sponsor Role collaborator

Jaeb Center for Health Research

OTHER

Sponsor Role collaborator

Tandem Diabetes Care, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jordan Pinsker, MD

Role: STUDY_DIRECTOR

Tandem Diabetes Care

Locations

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Children's Hospital Orange County

Orange, California, United States

Site Status

Stanford University

Palo Alto, California, United States

Site Status

Barbara Davis Center

Aurora, Colorado, United States

Site Status

University of Florida

Gainesville, Florida, United States

Site Status

University of South Florida Diabetes Center

Tampa, Florida, United States

Site Status

Northwestern University

Evanston, Illinois, United States

Site Status

Indiana University / Riley Hospital for Children

Indianapolis, Indiana, United States

Site Status

Iowa Diabetes and Endocrinology Research Center (IDERC)

West Des Moines, Iowa, United States

Site Status

Joslin Diabetes Center

Boston, Massachusetts, United States

Site Status

Children's Mercy Hospital

Kansas City, Missouri, United States

Site Status

Icahn School of Medicine at Mt. Sinai

New York, New York, United States

Site Status

Diabetes & Glandular Disease (DGD)

San Antonio, Texas, United States

Site Status

University of Virginia

Charlottesville, Virginia, United States

Site Status

Countries

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United States

References

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Levy CJ, Bailey R, Laffel LM, Forlenza G, DiMeglio LA, Hughes MS, Brown SA, Aleppo G, Bhargava A, Shah VN, Clements MA, Kipnes M, Bruggeman B, Daniels M, Rodriguez H, Calhoun P, Lum JW, Sasson-Katchalski R, Pinsker JE, Pollom R, Beck RW; TL1 Study Group. Multicenter Evaluation of Ultra-Rapid Lispro Insulin with Control-IQ Technology in Adults, Adolescents, and Children with Type 1 Diabetes. Diabetes Technol Ther. 2024 Sep;26(9):652-660. doi: 10.1089/dia.2024.0048. Epub 2024 May 22.

Reference Type RESULT
PMID: 38696672 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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TP-0009650

Identifier Type: -

Identifier Source: org_study_id

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