The Insulin-Only Bionic Pancreas Pivotal Trial

Summary

This multi-center randomized control trial (RCT) will compare efficacy and safety endpoints using the insulin-only configuration of the iLet Bionic Pancreas (BP) System versus Usual Care (UC) during a 13-week study period. Participants may be enrolled initially into a screening protocol and then transfer into the RCT protocol, or they may enter directly into the RCT protocol. The RCT will be followed by an Extension Phase in which the RCT Usual Care (UC) Group will use the insulin-only configuration of the iLet Bionic Pancreas (BP) System for 3 months. At the completion of use of the BP system in the RCT only, participants will enter a 2-4 day Transition Phase and be randomly assigned to either transition back to their usual mode of therapy (MDI or pump therapy) based on therapeutic guidance from the iLet BP System or transition back to their usual mode of therapy based on what their own insulin regimens were prior to enrolling in the RCT. There is an optional ancillary study to assess the safety of utilizing self-monitored blood glucose (SMBG) measurements instead of continuous glucose monitor (CGM) measurements as input into the iLet for \~48-60 hours. The Study is intended to mirror a real-world situation where CGM may not be available for an extended period of time (eg, user runs out of sensors and is awaiting new shipment).

Timeline

Start

2020-03-31

Primary completion

2021-10-30

Completion

2022-01-14

Publications

• Background Messer LH, Buckingham BA, Cogen F, Daniels M, Forlenza G, Jafri RZ, Mauras N, Muir A, Wadwa RP, White PC, Russell SJ, Damiano ER, El-Khatib FH, Ruedy KJ, Balliro CA, Li Z, Marak MC, Calhoun P, Beck RW. Positive Impact of the Bionic Pancreas on Diabetes Control in Youth 6-17 Years Old with Type 1 Diabetes: A Multicenter Randomized Trial. Diabetes Technol Ther. 2022 Oct;24(10):712-725. doi: 10.1089/dia.2022.0201.pub.
• Background Mauras N, Damiano ER, El-Khatib FH, Marak MC, Calhoun P, Ruedy KJ, Balliro C, Li Z, Beck RW, Russell SJ. Utility and Safety of Backup Insulin Regimens Generated by the Bionic Pancreas: A Randomized Study. Diabetes Technol Ther. 2023 Jun;25(6):437-441. doi: 10.1089/dia.2022.0461. Epub 2023 Mar 22.
• Background Li Z, Calhoun P, Ruedy KJ, Beck RW. Concordance of Central Laboratory Hemoglobin A1c Measurements from Capillary Kits Compared to Venous Draws in the Insulin-Only Bionic Pancreas Pivotal Trial. Diabetes Technol Ther. 2023 Jul;25(7):513-515. doi: 10.1089/dia.2023.0094. Epub 2023 May 2.
• Background Kruger D, Kass A, Lonier J, Pettus J, Raskin P, Salam M, Trikudanathan S, Zhou K, Russell SJ, Damiano ER, El-Khatib FH, Ruedy KJ, Balliro C, Li Z, Marak MC, Calhoun P, Beck RW. A Multicenter Randomized Trial Evaluating the Insulin-Only Configuration of the Bionic Pancreas in Adults with Type 1 Diabetes. Diabetes Technol Ther. 2022 Oct;24(10):697-711. doi: 10.1089/dia.2022.0200.
• Background Beck RW, Russell SJ, Damiano ER, El-Khatib FH, Ruedy KJ, Balliro C, Li Z, Calhoun P. A Multicenter Randomized Trial Evaluating Fast-Acting Insulin Aspart in the Bionic Pancreas in Adults with Type 1 Diabetes. Diabetes Technol Ther. 2022 Oct;24(10):681-696. doi: 10.1089/dia.2022.0167.
• Results Bionic Pancreas Research Group; Russell SJ, Beck RW, Damiano ER, El-Khatib FH, Ruedy KJ, Balliro CA, Li Z, Calhoun P, Wadwa RP, Buckingham B, Zhou K, Daniels M, Raskin P, White PC, Lynch J, Pettus J, Hirsch IB, Goland R, Buse JB, Kruger D, Mauras N, Muir A, McGill JB, Cogen F, Weissberg-Benchell J, Sherwood JS, Castellanos LE, Hillard MA, Tuffaha M, Putman MS, Sands MY, Forlenza G, Slover R, Messer LH, Cobry E, Shah VN, Polsky S, Lal R, Ekhlaspour L, Hughes MS, Basina M, Hatipoglu B, Olansky L, Bhangoo A, Forghani N, Kashmiri H, Sutton F, Choudhary A, Penn J, Jafri R, Rayas M, Escaname E, Kerr C, Favela-Prezas R, Boeder S, Trikudanathan S, Williams KM, Leibel N, Kirkman MS, Bergamo K, Klein KR, Dostou JM, Machineni S, Young LA, Diner JC, Bhan A, Jones JK, Benson M, Bird K, Englert K, Permuy J, Cossen K, Felner E, Salam M, Silverstein JM, Adamson S, Cedeno A, Meighan S, Dauber A. Multicenter, Randomized Trial of a Bionic Pancreas in Type 1 Diabetes. N Engl J Med. 2022 Sep 29;387(13):1161-1172. doi: 10.1056/NEJMoa2205225.
• Bilionis I, Berrios RC, de Arriba Munoz A, Fernandez-Luque L, Castillo C. A framework for assessing algorithmic discrimination risks in training data: a case of pediatric type 1 diabetes. JAMIA Open. 2026 Jul 14;9(4):ooag125. doi: 10.1093/jamiaopen/ooag125. eCollection 2026 Aug.
• Shapiro JB, Vesco AT, Carroll MS, Weissberg-Benchell J. Psychometric Properties of the Automated Insulin Delivery: Benefits and Burdens Scale for Adults with Type 1 Diabetes. Diabetes Technol Ther. 2024 Nov;26(11):842-850. doi: 10.1089/dia.2024.0117. Epub 2024 May 31.
• Marak MC, Calhoun P, Damiano ER, Russell SJ, Ruedy KJ, Beck RW. Testing the Real-World Accuracy of the Dexcom G6 Pro CGM During the Insulin-Only Bionic Pancreas Pivotal Trial. Diabetes Technol Ther. 2023 Nov;25(11):817-821. doi: 10.1089/dia.2023.0287. Epub 2023 Oct 3.
• Weissberg-Benchell J, Vesco AT, Shapiro J, Calhoun P, Damiano ER, Russell SJ, Li Z, El-Khatib FH, Ruedy KJ, Balliro CA, Beck RW. Psychosocial Impact of the Insulin-Only iLet Bionic Pancreas for Adults, Youth, and Caregivers of Youth with Type 1 Diabetes. Diabetes Technol Ther. 2023 Oct;25(10):705-717. doi: 10.1089/dia.2023.0238. Epub 2023 Sep 5.
• Lynch J, Kanapka LG, Russell SJ, Damiano ER, El-Khatib FH, Ruedy KJ, Balliro C, Calhoun P, Beck RW. The Insulin-Only Bionic Pancreas Pivotal Trial Extension Study: A Multi-Center Single-Arm Evaluation of the Insulin-Only Configuration of the Bionic Pancreas in Adults and Youth with Type 1 Diabetes. Diabetes Technol Ther. 2022 Oct;24(10):726-736. doi: 10.1089/dia.2022.0341.

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