NCT06453928

Brief Summary

Diabetes technology has revolutionized T1D management, disparities in technology access are evident among racial-ethnic minorities, patients with lower socioeconomic status and those with poorly controlled T1D (A1c\>8.5%). In order to examine whether diabetes technology can reduce diabetes care burdens and enhance outcomes among some of highest need patients, diabetes technology clinical trials must be expanded beyond the very select populations included in studies thus far (ie., mostly White, higher SES). Therefore, the investigators propose to perform a pilot RCT of hybrid closed-loop insulin pump therapy (HCL) in 40 diverse adult patients with poorly controlled T1D (HbA1c \>8.5%) from the largest academic and safety net health systems in the Los Angeles region to determine the feasibility of a RCT in this population and identify facilitators and barriers of effective use of closed loop insulin pump therapy in patients with poorly controlled T1D.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
13mo left

Started Sep 2024

Typical duration for not_applicable

Geographic Reach
1 country

3 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress61%
Sep 2024Jun 2027

First Submitted

Initial submission to the registry

April 26, 2024

Completed
2 months until next milestone

First Posted

Study publicly available on registry

June 12, 2024

Completed
3 months until next milestone

Study Start

First participant enrolled

September 5, 2024

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2027

Expected
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

February 13, 2026

Status Verified

November 1, 2025

Enrollment Period

2.4 years

First QC Date

April 26, 2024

Last Update Submit

February 10, 2026

Conditions

Keywords

Continuous Glucose MonitoringInsulin PumpHybrid Closed Loop SystemsDiabetes TechnologyHealth Disparities

Outcome Measures

Primary Outcomes (7)

  • Proportion of screened participants that are eligible

    Eligible among screened, enrolled among eligible, excluded among screened (and why) based on screening, recruitment and enrollment data.

    6 months

  • Proportion of enrolled participants that are randomized

    Randomized among enrolled, and receiving allocated intervention among randomized.

    6 months

  • Proportion of average time delay to enrollment

    Average time delay from screening to enrollment.

    6 months

  • Proportion of retention among participants randomized to the Intervention Group

    Retention among participants receiving allocated intervention after being randomized and discontinued intervention among randomized.

    6 months

  • Proportion of retention among participants randomized

    Participants lost to follow-up among those initially randomized.

    6 months

  • Proportion of retention among participants randomized

    Retention rates by participants completing all research assessments among randomized.

    6 months

  • Number of participants who adhere to assigned treatment

    Treatment-specific adherence, Adherence to study protocol and Proportion of planned assessments that are completed. Fidelity, which pertains to guaranteeing that the intervention is delivered in accordance with the established protocol, will be summarized by study arms, and differences between arms will be examined using t-tests or two-sample tests of proportions as appropriate. Adherence, which relates to the extent to which participants follow the treatment and study protocol, as well as the proportion of planned assessments completed, will be summarized by study arms, and differences between arms will be examined using t-tests or two-sample tests of proportions as appropriate.

    6 months

Secondary Outcomes (8)

  • Change in A1c

    6 months

  • Episodes and % of time with severe hypoglycemia ( BG <54 mg/dl)

    6 months

  • Mean Diabetes Ketoacidosis Episodes Incidence

    6 months

  • ED visits/Hospitalizations Number of diabetes related ED visits or hospitalizations

    6 months

  • Treatment Burden and Satisfaction: Diabetes Distress

    6 months

  • +3 more secondary outcomes

Study Arms (2)

Hybrid Closed Loop Insulin Pump System

EXPERIMENTAL

Participants will meet 1:1 with our CDE for at least 6 sessions over 6 weeks. Sessions will cover self-management basics, carb counting, CGM interpretation, hypoglycemia and hyperglycemia management and troubleshooting device issues. The investigators will follow up with participants in 24 and 72 hours after CGM and insulin pump initiation, respectively, to answer any device related questions that may arise in between sessions. Participants will follow up at intervals of 1-4 weeks throughout the study. During visits, the investigators will assess for adherence and adverse effects and evaluate device and safety issues associated with pump settings in the HCL arm. The investigators will repeat A1c at 12 weeks and 24 weeks and administer follow up questionnaires at 12 and 24 weeks.

Device: Hybrid Closed Loop Insulin Pump System

Control

NO INTERVENTION

Participants in the control arm will receive diabetes education at a similar frequency as the intervention group. Diabetes education for the control group will be a combination of in-person visits with the CDE and telephone brief diabetes education sessions. Participants will follow up at intervals of 1-4 weeks throughout the study. During visits, the investigators will assess for adherence and adverse effects. The investigators will repeat A1c at 12 weeks and 24 weeks and administer follow up questionnaires at 12 and 24 weeks.

Interventions

Patients will be started on an automated insulin delivery system.

Hybrid Closed Loop Insulin Pump System

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Type 1 Diabetes
  • A1c \>8.5%
  • Not insulin pump user
  • Primary language of English or Spanish
  • Have medical insurance coverage

You may not qualify if:

  • No measured A1c in the past year
  • Have comorbidities that can result in inaccurate hemoglobin A1c
  • Have cognitive, physical or mental impairment precluding diabetes technology use
  • Limited life expectancy (\<1 year)
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

UCLA

Santa Monica, California, 90404, United States

RECRUITING

Olive View-UCLA Medical Center

Sylmar, California, 91342, United States

RECRUITING

Harbor-UCLA Medical Center

Torrance, California, 90502, United States

RECRUITING

MeSH Terms

Conditions

Diabetes Mellitus, Type 1

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System Diseases

Central Study Contacts

Estelle M Everett, MD, MHS

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Model Details: Randomized controlled trial.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

April 26, 2024

First Posted

June 12, 2024

Study Start

September 5, 2024

Primary Completion (Estimated)

January 31, 2027

Study Completion (Estimated)

June 1, 2027

Last Updated

February 13, 2026

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will not share

Locations