The Omnipod Horizon™ System is a hybrid closed-loop system (HCL) consisting of a tubeless insulin pump and Dexcom G6 sensor which provides automated insulin delivery with glucose targets from 110-150mg/dL, adjustable by time of day to allow therapy personalization. This study is the first outpatient safety and effectiveness evaluation of the system.

Participants aged 14-70y with T1D>6mo and A1C<10.0% used the HCL system at home for 14 days (first 2 days hotel, n=8) over winter holidays with unrestricted eating and exercise. Participants set protocol-determined higher targets of 130-150mg/dL for 9 days, then could freely choose their targets from 110-150mg/dL for the last 5 days. Primary outcomes were safety measures and percent time 70-180mg/dL for the 5 days of HCL use with free choice of target.

Participants thus far (n=12) had a mean±SD age of 34±13y, T1D duration 15±12y, and A1C 6.9±0.8%. Participants primarily chose the 110 (59% of study time) and 120mg/dL (41%) targets. For 53 patient-days of HCL use, percent time from 70-180mg/dL was 74.3±7.6% (Table). Percent time <70mg/dL was low: 0.9±1.3% overall and 0.9±2.2% overnight. There were no serious adverse events.

The HCL system was safe and performed well in adults with T1D when used at home for 5 days with free choice of target glucose. Participants were invited to continue in a 3mo outpatient study of the system, which is currently underway.

Disclosure

S.A. Brown: Research Support; Self; Dexcom, Inc., Insulet Corporation, Roche Diabetes Care, Tandem Diabetes Care, Tolerion, Inc. B.W. Bode: Advisory Panel; Self; InPen, Medtronic. Consultant; Self; ADOCIA, Eli Lilly and Company, Lexicon Pharmaceuticals, Inc., Novo Nordisk A/S, Pfizer Inc. Research Support; Self; Dexcom, Inc., Diasome Pharmaceuticals, Inc., Eli Lilly and Company, Gan & Lee Pharmaceuticals, Medtronic, Novo Nordisk A/S, Provention Bio, Inc., Senseonics, Xeris Pharmaceuticals, Inc. Speaker’s Bureau; Self; AstraZeneca, Boehringer Ingelheim Pharmaceuticals, Inc., InPen, Janssen Pharmaceuticals, Inc., MannKind Corporation, Medtronic, Novo Nordisk A/S, Sanofi, Sanofi, Senseonics, Xeris Pharmaceuticals, Inc. Stock/Shareholder; Self; Glytec. C.J. Levy: Consultant; Self; Dexcom, Inc. Employee; Spouse/Partner; Allergan plc. Research Support; Self; Abbott, Dexcom, Inc., Insulet Corporation. G.P. Forlenza: Advisory Panel; Self; Medtronic. Consultant; Self; Dexcom, Inc., Insulet Corporation, Tandem Diabetes Care. Research Support; Self; Abbott, Dexcom, Inc., Insulet Corporation, Medtronic, Tandem Diabetes Care. B.A. Buckingham: Advisory Panel; Self; ConvaTec Inc., Medtronic. Research Support; Self; Beta Bionics, Inc., Dexcom, Inc., Insulet Corporation, Medtronic, Tandem Diabetes Care. A.B. Criego: Other Relationship; Self; Dexcom, Inc., Lilly Diabetes, Medtronic, Omnipod. T.T. Ly: Employee; Self; Insulet Corporation.

Funding

Insulet Corporation

Readers may use this article as long as the work is properly cited, the use is educational and not for profit, and the work is not altered. More information is available at http://www.diabetesjournals.org/content/license.