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.
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.