Viewing Study NCT03565666


Ignite Creation Date: 2025-12-24 @ 4:25 PM
Ignite Modification Date: 2025-12-30 @ 4:47 AM
Study NCT ID: NCT03565666
Status: COMPLETED
Last Update Posted: 2019-09-04
First Post: 2018-05-29
Is NOT Gene Therapy: True
Has Adverse Events: True

Brief Title: The Insulin-Only Bionic Pancreas Bridging Study
Sponsor: Massachusetts General Hospital
Organization:

Study Overview

Official Title: The Insulin-Only Bionic Pancreas Bridging Study
Status: COMPLETED
Status Verified Date: 2019-09
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: The iLet is a closed-loop delivery system that can be used in insulin-only, bihormonal, or glucagon-only configurations. Previous studies have utilized a phone-based bionic pancreas. The iLet consists of a touchscreen-enabled, menu-driven user interface and an onboard microprocessor that provides a comprehensive and standalone platform, which allows the iLet to operate independently of smartphones or other devices and without the need for internet support during routine operation.

This is a multicenter study of adult participants with type 1 diabetes, who will manage their diabetes with the iLet bionic pancreas compared to usual care.
Detailed Description: This study will serve as a transitional study, bridging to larger and longer outpatient pivotal studies using the insulin-only configuration of the bionic pancreas.

The Adult RCT Period will consist of a multi-center, three-period, random-order, cross-over, feasibility study in 36 adult participants ≥ 18 years old with T1D. Insulin therapy for each participant will be administered (i) using the iLet in the insulin-only configuration and the insulin analog that they use for their usual care (either Humalog or Novolog) for 7 days, (ii) in another period using the iLet in the insulin-only configuration with faster insulin aspart (Fiasp) for 7 days (iii) in a third period using the participant's own usual care (UC) for 7 days. All three experimental periods will be followed by round-the-clock, remote, telemetric monitoring for hyperglycemia (\> 300 mg/dl for ≥ 90 minutes) and hypoglycemia (\< 50 mg/dl for ≥ 15 minutes). Half the subjects enrolled were expected to manage their diabetes with MDI and the other half with insulin pumps in their UC. An implantable Eversense CGM will also be placed in half the study participants for a CGM comparison.

Study Oversight

Has Oversight DMC: True
Is a FDA Regulated Drug?: True
Is a FDA Regulated Device?: True
Is an Unapproved Device?: True
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: