NCT04623086

Brief Summary

This study evaluates direct switching vs use of a bridging dose from insulin glargine to insulin degludec in type 1 DM patients. Half of the participants will receive a bridging insulin glargine dose along with the 1st dose of degludec, while other half will receive a placebo and 1st dose of degludec.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
59

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Feb 2020

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
completed

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 Start

First participant enrolled

February 14, 2020

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

November 4, 2020

Completed
6 days until next milestone

First Posted

Study publicly available on registry

November 10, 2020

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 7, 2022

Completed
1.3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2023

Completed
2 months until next milestone

Results Posted

Study results publicly available

February 28, 2024

Completed
Last Updated

February 28, 2024

Status Verified

February 1, 2024

Enrollment Period

2.6 years

First QC Date

November 4, 2020

Results QC Date

September 6, 2023

Last Update Submit

February 1, 2024

Conditions

Keywords

Insulin glargine, insulin degludec

Outcome Measures

Primary Outcomes (1)

  • Mean Change in Percent Time in Range

    Change in percent time spent in target glycemic range (TIR, glucose 70-180 mg/dL, both values included) in the 48 hours before and the 48 hours after the 1st dose of IDeg.

    48 hours prior to 48 hours after 1st dose of degludec insulin

Secondary Outcomes (7)

  • Coefficient of Variation (CV) of Percent-time-in-range

    48 hours prior to 48 hours after 1st dose of degludec insulin

  • Nocturnal Percent Time in Range of 70-180 mg/dL Nocturnal Time in Range (N-TIR)

    4 days: Outcome Measure Time Frame 48 hours prior to 48 hours after 1st dose of degludec insulin

  • Percent Time Above 180 mg/dL (TAR-1)

    4 days

  • Time Above Range-2 (TAR-2)

    4 days

  • Time Below Range-1 (TBR-1)

    48 hours prior to 48 hours after 1st dose of degludec insulin

  • +2 more secondary outcomes

Study Arms (2)

Insulin Glargine and Insulin Degludec

EXPERIMENTAL

Insulin glargine, 100 units per mL injected subcutaneously daily Insulin Degludec, 100 units per mL injected subcutaneously daily

Drug: Insulin DegludecDrug: Insulin Glargine

Insulin Degludec and placebo

PLACEBO COMPARATOR

Insulin Degludec, 100 units per mL injected subcutaneously daily Placebo, 9g/L sodium chloride (normal saline) injected subcutaneously daily

Drug: Insulin DegludecDrug: Placebo

Interventions

Insulin Degludec injection

Also known as: Tresiba
Insulin Degludec and placeboInsulin Glargine and Insulin Degludec

Insulin Glargine injection

Also known as: Lantus
Insulin Glargine and Insulin Degludec

9g/L sodium chloride (normal saline) subcutaneous injection manufactured to mimic insulin glargine injection

Insulin Degludec and placebo

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patient age is 18-75 years.
  • Diagnosis of T1D of at least 1-year duration.
  • Has the ability to provide informed consent before any trial-related activities.
  • Treated with insulin glargine as their basal insulin in the 3 months preceding screening visit.
  • Stable insulin regimen (defined as change of \<20% in the total daily dose of insulin and no change to the basal insulin agent) over the 3 months preceding the screening visit.
  • Patient willing to dose their basal insulin at bedtime.
  • Hemoglobin A1c \< 9% in the 3 months preceding screening visit.
  • Able to self-administer their insulin doses.
  • Able to do self-monitoring of blood glucose using a glucose meter and willing to do this at least 2 times daily for patients using a CGM that requires calibration prior to the study and 4 times daily for patients who were not using a CGM prior to the study.
  • Agreeable to the use of a continuous glucose monitor (CGM) for the duration required in the study. If already using a CGM prior to the study, then agreeable to wearing the blinded study CGM concurrently during the study period.
  • Will be reachable by phone and/or email to comply with study procedures.
  • Will be able to comply with study procedures, per investigator's opinion.
  • Patient agrees to not use correctional insulin unless BG ≥250 for the 48 hours before and after 1st dose of IDeg.

You may not qualify if:

  • Patients with eGFR \<30 on at least 2 measurements within 1-year of the screening visit.
  • History of myocardial infarction within 6 months preceding the screening visit.
  • Patients taking non-insulin medications for the glycemic management of T1D (including metformin, DPP-4 inhibitors, GLP-1 receptor agonists, SGLT-2 inhibitors, thiazolidinediones, alpha-glucosidase inhibitors, pramlintide)
  • Known or suspected allergy to IDeg or one of its excipients.
  • Pregnant, planning to become pregnant in the next 3 months or breastfeeding.
  • Participation in a clinical trial with investigational drug within 1 month of the screening visit or at present.
  • Skin condition that prevents the insertion of the CGM.
  • Previously randomized and received drug in this study.
  • Presence of decompensated or poorly controlled psychiatric conditions.
  • Current known or suspected illicit substance use.
  • Any anticipated surgery or procedure in the next 14 days.
  • Patients using U-300 glargine as their basal insulin.
  • Patients using insulin afrezza as their short-acting insulin.
  • Use of glucocorticoid burst/pulse therapy within 14 days prior to screening visit (chronic stable glucocorticoid doses are acceptable).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Washington Medicine Diabetes Institute at South Lake Union

Seattle, Washington, 98109, United States

Location

MeSH Terms

Conditions

Diabetes Mellitus, Type 1

Interventions

insulin degludecInsulin Glargine

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

Insulin, Long-ActingInsulinsPancreatic HormonesPeptide HormonesHormonesHormones, Hormone Substitutes, and Hormone AntagonistsPeptidesAmino Acids, Peptides, and Proteins

Results Point of Contact

Title
Arthi Thirumalai
Organization
University of Washington

Study Officials

  • Arthi Thirumalai, MD

    University of Washington

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor, School of Medicine: Metabolism, Endocrinology and Nutrition

Study Record Dates

First Submitted

November 4, 2020

First Posted

November 10, 2020

Study Start

February 14, 2020

Primary Completion

September 7, 2022

Study Completion

December 31, 2023

Last Updated

February 28, 2024

Results First Posted

February 28, 2024

Record last verified: 2024-02

Locations