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Kovatchev B, Castillo A, Pryor E, Kollar LL, Barnett CL, DeBoer MD, Brown SA. Neural-Net Artificial Pancreas: A Randomized Crossover Trial of a First-in-Class Automated Insulin Delivery Algorithm. Diabetes Technol Ther 2024; 26:375-382. [PMID: 38277161 DOI: 10.1089/dia.2023.0469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Background: Automated insulin delivery (AID) is now integral to the clinical practice of type 1 diabetes (T1D). The objective of this pilot-feasibility study was to introduce a new regulatory and clinical paradigm-a Neural-Net Artificial Pancreas (NAP)-an encoding of an AID algorithm into a neural network that approximates its action and assess NAP versus the original AID algorithm. Methods: The University of Virginia Model-Predictive Control (UMPC) algorithm was encoded into a neural network, creating its NAP approximation. Seventeen AID users with T1D were recruited and 15 participated in two consecutive 20-h hotel sessions, receiving in random order either NAP or UMPC. Their demographic characteristics were ages 22-68 years old, duration of diabetes 7-58 years, gender 10/5 female/male, White Non-Hispanic/Black 13/2, and baseline glycated hemoglobin 5.4%-8.1%. Results: The time-in-range (TIR) difference between NAP and UMPC, adjusted for entry glucose level, was 1 percentage point, with absolute TIR values of 86% (NAP) and 87% (UMPC). The two algorithms achieved similar times <70 mg/dL of 2.0% versus 1.8% and coefficients of variation of 29.3% (NAP) versus 29.1 (UMPC)%. Under identical inputs, the average absolute insulin-recommendation difference was 0.031 U/h. There were no serious adverse events on either controller. NAP had sixfold lower computational demands than UMPC. Conclusion: In a randomized crossover study, a neural-network encoding of a complex model-predictive control algorithm demonstrated similar performance, at a fraction of the computational demands. Regulatory and clinical doors are therefore open for contemporary machine-learning methods to enter the AID field. Clinical Trial Registration number: NCT05876273.
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Affiliation(s)
- Boris Kovatchev
- Center for Diabetes Technology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Alberto Castillo
- Center for Diabetes Technology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Elliott Pryor
- Center for Diabetes Technology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Laura L Kollar
- Center for Diabetes Technology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Charlotte L Barnett
- Center for Diabetes Technology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Mark D DeBoer
- Center for Diabetes Technology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Sue A Brown
- Center for Diabetes Technology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
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2
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Lablanche S, Delagenière J, Jalbert M, Sonnet E, Benichou M, Arnold N, Spiteri A, Le Berre JP, Renard E, Chevalier N, Borot S, Bonnemaison E, Coffin C, Teissier MP, Benhamou PY, Borel JC, Penfornis A, Joubert M, Kessler L. 12-Month Real-Life Efficacy of the MiniMed 780G Advanced Closed-Loop System in Patients Living with Type 1 Diabetes: A French Observational, Retrospective, Multicentric Study. Diabetes Technol Ther 2024; 26:426-432. [PMID: 38236643 DOI: 10.1089/dia.2023.0414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Aim: To evaluate the evolution of glycemic outcomes in patients living with type 1 diabetes (T1D) after 1 year of use of the MiniMed 780G advanced hybrid closed-loop (AHCL) system. Methods: We conducted an observational, retrospective, multicentric study in 20 centers in France. The primary objective was to evaluate the improvement in glycemic control after 1-year use of AHCL. The primary endpoint was the variation of time in range (TIR) between pre-AHCL and after 1-year use of AHCL. Secondary objectives were to analyze the glycemic outcomes after 3, 6, and 12 months of AHCL use, the safety, and the long-term observance of AHCL. Results: Two hundred twenty patients were included, and 200 were analyzed for the primary endpoint. 92.7% of patients continued to use AHCL. After 1 year of use of AHCL, TIR was 72.5% ± 10.6% (+9.1%; 95% confidence interval [CI] [7.6-10.5] compared to pre-AHCL initiation, P < 0.001), HbA1c 7.1% ± 0.7% (-0.5%; 95% CI [-0.6 to -0.4]; P < 0.001), time below range 2.0% [1.0; 3.0] (0.0% [-2.0; 0.0], P < 0.001), and time above range 24.8% ± 10.9% (-7.3%; 95% CI [-8.8 to -5.7]; P < 0.001). More patients achieved the glycemic treatment goals of HbA1c <7.0% (45.1% vs. 18.1%, P < 0.001) and TIR >70% (59.0% vs. 29.5% P < 0.001) when compared with pre-AHCL. Five patients experienced severe hypoglycemia events and two patients experienced ketoacidosis. Conclusion: After 1 year of use of AHCL, people living with T1D safely improved their glucose control and a higher proportion of them achieved optimal glycemic control.
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Affiliation(s)
- Sandrine Lablanche
- Grenoble Alpes Univeristy, Grenoble Alpes University Hospital, Endocrinology-Diabetology-Nutrition Department, University, Saint-Martind'Heres, France
| | - Johanna Delagenière
- Grenoble Alpes Univeristy, Grenoble Alpes University Hospital, Endocrinology-Diabetology-Nutrition Department, University, Saint-Martind'Heres, France
| | - Manon Jalbert
- Grenoble Alpes Univeristy, Grenoble Alpes University Hospital, Endocrinology-Diabetology-Nutrition Department, University, Saint-Martind'Heres, France
| | - Emmanuel Sonnet
- Endocrinology-Diabetology Department, Brest University Hospital, Brest, France
| | - Muriel Benichou
- Endocrinology-Diabetology Department, Perpignan Hospital, Perpignan, France
| | | | - Anne Spiteri
- Pediatric Department, Grenoble Alpes University Hospital, Saint-Martin-d'Heres, France
| | | | - Eric Renard
- Endocrinology-Diabetology Department, Montpellier University Hospital, Montpellier, France
| | - Nicolas Chevalier
- Endocrinology-Diabetology Department, Nice University Hospital, Nice, France
| | - Sophie Borot
- Endocrinology-Diabetology Department, Jean-Minjoz University Hospital, Besançon, France
| | | | - Christine Coffin
- Endocrinology-Diabetology Department, Périgueux Hospital, Périgueux, France
| | | | - Pierre Yves Benhamou
- Grenoble Alpes Univeristy, Grenoble Alpes University Hospital, Endocrinology-Diabetology-Nutrition Department, University, Saint-Martind'Heres, France
| | | | - Alfred Penfornis
- Endocrinology-Diabetology Department, Centre Hospitalier Sud Francilien, Corbeil-Essonnes, France
| | - Michael Joubert
- Diabetes Care Unit, Caen University Hospital, UNICAEN, Caen, France
| | - Laurence Kessler
- Endocrinology-Diabetology Department, Strasbourg University Hospital, Strasbourg, France
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3
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Lebbad H, Desir C, Vesin A, Adenis A, Charpentier G, Benhamou PY. Insulin Requirements According to Sex and Weight in a Population of 9036 Adult Persons With Type 1 Diabetes Using Closed-Loop Insulin Delivery. J Diabetes Sci Technol 2024:19322968241252366. [PMID: 38804537 DOI: 10.1177/19322968241252366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
BACKGROUND The prediction of the individual insulin needs may facilitate the initiation of insulin therapy. Our aim was to explore the relationships between body weight, sex, and daily amounts of insulin delivered by a hybrid closed-loop system. METHODS We performed a retrospective data collection of all consenting adult patients with type 1 diabetes who were equipped in Europe with the Diabeloop Generation 1 (DBLG1) hybrid closed-loop insulin delivery device between March 1, 2021 and February 28, 2023. RESULTS A total of 9036 users (59% females, age 45.6 ± 14.3 years) were included, reaching a mean follow-up of 320 ± 143 days, an overall 2 887 188 days of data. We observed a mean insulin-weight ratio of 0.617 ± 0.207 U/kg (0.665 ± 0.217 for males and 0.584 ± 0.193 for females, P < .001). Exploratory analysis of a subset of 4066 patients reaching >70% Time in Range (70-180 mg/dL) showed a mean insulin-weight ratio of 0.55 ± 0.17 U/kg (P < .001) (0.59 ± 0.18 for the 1438 males and 0.53 ± 0.16 for the 2628 females). CONCLUSION This large real-world analysis provides a quantitative estimation of the daily insulin requirements in adult patients with type 1 diabetes and shows significant differences between sex. These findings have relevant implications in the practical management of insulin therapy.
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Affiliation(s)
| | | | | | | | - Guillaume Charpentier
- Center for Study and Research for Improvement of the Treatment of Diabetes (CERITD), Bioparc-Genopole Evry-Corbeil, Evry, France
- Department of Diabetes and Endocrinology, Sud-Francilien Hospital, Corbeil, France
| | - Pierre-Yves Benhamou
- Department of Endocrinology, Grenoble University Hospital, Grenoble Alpes University, INSERM U1055, LBFA, Grenoble, France
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4
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Boughton CK, Hovorka R. The role of automated insulin delivery technology in diabetes. Diabetologia 2024:10.1007/s00125-024-06165-w. [PMID: 38740602 DOI: 10.1007/s00125-024-06165-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 03/21/2024] [Indexed: 05/16/2024]
Abstract
The role of automated insulin delivery systems in diabetes is expanding. Hybrid closed-loop systems are being used in routine clinical practice for treating people with type 1 diabetes. Encouragingly, real-world data reflects the performance and usability observed in clinical trials. We review the commercially available hybrid closed-loop systems, their distinctive features and the associated real-world data. We also consider emerging indications for closed-loop systems, including the treatment of type 2 diabetes where variability of day-to-day insulin requirements is high, and other challenging applications for this technology. We discuss issues around access and implementation of closed-loop technology, and consider the limitations of present closed-loop systems, as well as innovative approaches that are being evaluated to improve their performance.
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Affiliation(s)
- Charlotte K Boughton
- Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, UK.
| | - Roman Hovorka
- Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, UK
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Halim B, Abraham MB, Manos G, Arrieta A, Dai Z, Vogrin S, Lu J, MacIsaac R, Ekinci EI, Davis EA, Jenkins A, Shin J, Vigersky RA, Jones TW, O'Neal D. Advances in Automated Insulin Delivery with the Medtronic 780G: The Australian Experience. Diabetes Technol Ther 2024; 26:190-197. [PMID: 38444313 DOI: 10.1089/dia.2023.0348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Aim: To assess the real-world performance of MiniMed™ 780G for Australians with type 1 diabetes (T1D) following advanced hybrid closed loop (AHCL) activation and to evaluate the effect of changing from MiniMed 670/770G to 780G. Methods: We analyzed deidentified Carelink™ continuous glucose monitoring (CGM) data from Australian users from January 2020 to December 2022, including the proportion attaining three major consensus targets: Glucose management indicator (GMI <7.0%), time in range (TIR 70-180 mg/dL >70%), and time below range (TBR 70 mg/dL <4%). Results: Comparing 670/770G users (n = 5676) for mean ± standard deviation 364 ± 244 days with 780G users (n = 3566) for 146 ± 145 days, the latter achieved a higher TIR (72.6% ± 10.6% vs. 67.3% ± 11.4%; P < 0.001), lower time above range (TAR) (25.5% ± 10.9% vs. 30.6% ± 11.7%; P < 0.001), and lower GMI (6.9% ± 0.4% vs. 7.2% ± 0.4%; P < 0.001) without compromising TBR (1.9% ± 1.8% vs. 2.0% ± 1.8%; P = 0.0015). Of 1051 670/770G users transitioning to 780G, TIR increased (70.0% ± 10.7% to 74.0% ± 10.2%; P < 0.001), TAR decreased (28.1% ± 10.9% to 24.0% ± 10.7%; P < 0.001), and TBR was unchanged. The percentage of users attaining all three CGM targets was higher in 780G users (50.1% vs. 29.5%; P < 0.001). CGM metrics were stable at 12 months post-transition. Conclusion: Real-world data from Australia shows that a higher proportion of MiniMed 780G users meet clinical targets for CGM consensus metrics compared to MiniMed 670/770G users and glucose control was sustained over 12 months.
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Affiliation(s)
- Bella Halim
- Department of Medicine, University of Melbourne, Melbourne, Australia
- Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne, Melbourne, Australia
| | - Mary B Abraham
- Children's Diabetes Centre, Telethon Kids Institute, University of Western Australia, Perth, Australia
- Department of Endocrinology and Diabetes, Perth Children's Hospital, Perth, Australia
| | - Georgina Manos
- Department of Medicine, University of Melbourne, Melbourne, Australia
- Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne, Melbourne, Australia
| | | | - Zheng Dai
- Medtronic, Northridge, California, USA
| | - Sara Vogrin
- Department of Medicine, University of Melbourne, Melbourne, Australia
| | - Jean Lu
- Department of Medicine, University of Melbourne, Melbourne, Australia
| | - Richard MacIsaac
- Department of Medicine, University of Melbourne, Melbourne, Australia
- Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne, Melbourne, Australia
- The Australian Centre for Accelerating Diabetes Innovation, Melbourne Medical School, The University of Melbourne, Melbourne, Australia
| | - Elif I Ekinci
- Department of Medicine, University of Melbourne, Melbourne, Australia
- The Australian Centre for Accelerating Diabetes Innovation, Melbourne Medical School, The University of Melbourne, Melbourne, Australia
- Department of Endocrinology, Austin Health, Melbourne, Australia
| | - Elizabeth A Davis
- Children's Diabetes Centre, Telethon Kids Institute, University of Western Australia, Perth, Australia
- Department of Endocrinology and Diabetes, Perth Children's Hospital, Perth, Australia
| | - Alicia Jenkins
- Department of Medicine, University of Melbourne, Melbourne, Australia
- Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne, Melbourne, Australia
- Department of Diabetes and Vascular Medicine, Baker Heart and Diabetes Institute, Melbourne, Australia
| | - John Shin
- Medtronic, Northridge, California, USA
| | | | - Timothy W Jones
- Children's Diabetes Centre, Telethon Kids Institute, University of Western Australia, Perth, Australia
- Department of Endocrinology and Diabetes, Perth Children's Hospital, Perth, Australia
| | - David O'Neal
- Department of Medicine, University of Melbourne, Melbourne, Australia
- Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne, Melbourne, Australia
- The Australian Centre for Accelerating Diabetes Innovation, Melbourne Medical School, The University of Melbourne, Melbourne, Australia
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6
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Thrasher JR, Arrieta A, Niu F, Cameron KR, Cordero TL, Shin J, Rhinehart AS, Vigersky RA. Early Real-World Performance of the MiniMed™ 780G Advanced Hybrid Closed-Loop System and Recommended Settings Use in the United States. Diabetes Technol Ther 2024; 26:24-31. [PMID: 38377317 DOI: 10.1089/dia.2023.0453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Background: The MiniMed™ 780G system (MM780G) with Guardian™ 4 sensor includes a 100 mg/dL glucose target (GT) and automated insulin corrections up to every 5 min and was recently approved for use in the United States. In the present study, early real-world MM780G performance and the use of recommended system settings (100 mg/dL GT with an active insulin time of 2 h), by individuals with type 1 diabetes, were evaluated. Methods: CareLink™ personal data uploaded between the launch of the MM780G to August 22, 2023 were aggregated and underwent retrospective analysis (based on user consent) and if users had ≥10 days of continuous glucose monitoring (CGM) data. The 24-h day CGM metrics, including mean glucose, percentage of time spent in (%TIR), above (%TAR), and below (%TBR) target range (70-180 mg/dL), in addition to delivered insulin and closed-loop (CL) exits, were compared between an overall group (n = 7499) and individuals who used recommended settings (each, for >95% of the time). An analysis of the same metrics for MiniMed™ 770G system (MM770G) users (n = 3851) who upgraded to the MM780G was also conducted (paired t-test or Wilcoxon signed-rank test, P < 0.05 considered statistically significant). Results: For MM780G users, CGM use, and time in CL were >90% and all MM780G CGM metrics exceeded consensus-recommended goals. With recommended settings (22% of all users), mean %TIR and %TITR (70-140 mg/dL) were 81.4% and 56.4%, respectively. For individuals who upgraded from the MM770G, %TIR and %TITR increased from 73.2% to 78.3% and 45.8% to 52.6%, respectively, while %TAR reduced from 25.1% to 20.2% (P < 0.001, for all three). CL exits/week averaged <1, for all MM780G users. Conclusions: Early real-world MM780G use in the United States demonstrated a high percentage of time in range with low time above and below range. These outcomes are similar to those observed for real-world MM780G use in other countries.
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Affiliation(s)
- James R Thrasher
- Arkansas Diabetes and Endocrinology Center, Little Rock, Arkansas, USA
| | - Arcelia Arrieta
- Medtronic International Trading Sàrl, Tolochenaz, Switzerland
| | - Fang Niu
- Medtronic Diabetes, Northridge, California, USA
| | | | | | - John Shin
- Medtronic Diabetes, Northridge, California, USA
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7
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Considine EG, Sherr JL. Real-World Evidence of Automated Insulin Delivery System Use. Diabetes Technol Ther 2024; 26:53-65. [PMID: 38377315 PMCID: PMC10890954 DOI: 10.1089/dia.2023.0442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Objective: Pivotal trials of automated insulin delivery (AID) closed-loop systems have demonstrated a consistent picture of glycemic benefit, supporting approval of multiple systems by the Food and Drug Administration or Conformité Européenne mark receipt. To assess how pivotal trial findings translate to commercial AID use, a systematic review of retrospective real-world studies was conducted. Methods: PubMed and EMBASE were searched for articles published after 2018 with more than five nonpregnant individuals with type 1 diabetes (T1D). Data were screened/extracted in duplicate for sample size, AID system, glycemic outcomes, and time in automation. Results: Of 80 studies identified, 20 met inclusion criteria representing 171,209 individuals. Time in target range 70-180 mg/dL (3.9-10.0 mmol/L) was the primary outcome in 65% of studies, with the majority of reports (71%) demonstrating a >10% change with AID use. Change in hemoglobin A1c (HbA1c) was reported in nine studies (range 0.1%-0.9%), whereas four reported changes in glucose management indicator (GMI) with a 0.1%-0.4% reduction noted. A decrease in HbA1c or GMI of >0.2% was achieved in two-thirds of the studies describing change in HbA1c and 80% of articles where GMI was described. Time below range <70 mg/dL (<3.9 mmol/L) was reported in 16 studies, with all but 1 study showing stable or reduced levels. Most systems had >90% time in automation. Conclusion: With larger and more diverse populations, and follow-up periods of longer duration (∼9 months vs. 3-6 months for pivotal trials), real-world retrospective analyses confirm pivotal trial findings. Given the glycemic benefits demonstrated, AID is rapidly becoming the standard of care for all people living with T1D. Individuals should be informed of these systems and differences between them, have access to and coverage for these technologies, and receive support as they integrate this mode of insulin delivery into their lives.
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Affiliation(s)
| | - Jennifer L. Sherr
- Department of Pediatrics, Yale School of Medicine, New Haven, Connecticut, USA
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8
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Nimri R, Phillip M, Clements MA, Kovatchev B. Closed-Loop Control, Artificial Intelligence-Based Decision-Support Systems, and Data Science. Diabetes Technol Ther 2024; 26:S68-S89. [PMID: 38441444 DOI: 10.1089/dia.2024.2505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Affiliation(s)
- Revital Nimri
- Diabetes Technology Center, Jesse Z and Sara Lea Shafer Institute for Endocrinology and Diabetes, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Moshe Phillip
- Diabetes Technology Center, Jesse Z and Sara Lea Shafer Institute for Endocrinology and Diabetes, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Mark A Clements
- Division of Pediatric Endocrinology, Children's Mercy Hospitals and Clinics, Kansas City, MO, USA
| | - Boris Kovatchev
- Center for Diabetes Technology, School of Medicine, University of Virginia, Charlottesville, VA, USA
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Beato-Víbora PI, Chico A, Moreno-Fernandez J, Bellido-Castañeda V, Nattero-Chávez L, Picón-César MJ, Martínez-Brocca MA, Giménez-Álvarez M, Aguilera-Hurtado E, Climent-Biescas E, Azriel-Mir S, Rebollo-Román Á, Yoldi-Vergara C, Pazos-Couselo M, Alonso-Carril N, Quirós C. A Multicenter Prospective Evaluation of the Benefits of Two Advanced Hybrid Closed-Loop Systems in Glucose Control and Patient-Reported Outcomes in a Real-world Setting. Diabetes Care 2024; 47:216-224. [PMID: 37948469 DOI: 10.2337/dc23-1355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/22/2023] [Indexed: 11/12/2023]
Abstract
OBJECTIVE Advanced hybrid closed-loop systems (AHCL) have been shown to improve glycemic control and patient-reported outcomes in type 1 diabetes. The aim was to analyze the outcomes of two commercially available AHCL in real life. RESEARCH DESIGN AND METHODS A prospective study was performed, including adolescents and adults with type 1 diabetes, AHCL naïve, from 14 centers, who initiated the use of MM780G with SmartGuard or Tandem t:slimX2 with Control-IQ. Baseline and 3-month evaluations were performed, assessing HbA1c, time in different glycemic ranges, and patient-reported outcomes. The primary outcome was the between-group time in range 70-180 mg/dL difference from beginning to end of follow-up. RESULTS One hundred fifty participants were included, with 75 initiating each system (age: 39.9 ± 11.4 years [16-72]; 64% female; diabetes duration: 21.6 ± 11.9 years). Time in range increased from 61.53 ± 14.01% to 76.17 ± 9.48% (P < 0.001), with no between-group differences (P = 0.591). HbA1c decreased by 0.56% (95% CI 0.44%, 0.68%) (6 mmol/mol, 95% CI 5, 7) (P < 0.001), from 7.43 ± 1.07% to 6.88 ± 0.60% (58 ± 12 to 52 ± 7 mmol/mol) in the MM780G group, and from 7.14 ± 0.70% to 6.56 ± 0.53% (55 ± 8 to 48 ± 6 mmol/mol) in the Control-IQ group (both P < 0.001 to baseline, P = 0.819 between groups). No superiority of one AHCL over the other regarding fear of hypoglycemia or quality of life was found. Improvement in diabetes-related distress was higher in Control-IQ users (P = 0.012). Sleep quality was improved (PSQI: from 6.94 ± 4.06 to 6.06 ± 4.05, P = 0.004), without differences between systems. Experience with AHCL, evaluated by the INSPIRE measures, exceeded the expectations. CONCLUSIONS The two AHCL provide significant improvement in glucose control and satisfaction, with no superiority of one AHCL over the other.
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Affiliation(s)
| | - Ana Chico
- Hospital Santa Creu i Sant Pau, Barcelona, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Carmen Quirós
- Hospital Universitari Mutua de Terrassa, Barcelona, Spain
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10
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ElSayed NA, Aleppo G, Bannuru RR, Bruemmer D, Collins BS, Ekhlaspour L, Hilliard ME, Johnson EL, Khunti K, Lingvay I, Matfin G, McCoy RG, Perry ML, Pilla SJ, Polsky S, Prahalad P, Pratley RE, Segal AR, Seley JJ, Stanton RC, Gabbay RA. 7. Diabetes Technology: Standards of Care in Diabetes-2024. Diabetes Care 2024; 47:S126-S144. [PMID: 38078575 PMCID: PMC10725813 DOI: 10.2337/dc24-s007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
The American Diabetes Association (ADA) "Standards of Care in Diabetes" includes the ADA's current clinical practice recommendations and is intended to provide the components of diabetes care, general treatment goals and guidelines, and tools to evaluate quality of care. Members of the ADA Professional Practice Committee, an interprofessional expert committee, are responsible for updating the Standards of Care annually, or more frequently as warranted. For a detailed description of ADA standards, statements, and reports, as well as the evidence-grading system for ADA's clinical practice recommendations and a full list of Professional Practice Committee members, please refer to Introduction and Methodology. Readers who wish to comment on the Standards of Care are invited to do so at professional.diabetes.org/SOC.
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Lepore G, Borella ND, Castagna G, Ippolito S, Bonfadini S, Corsi A, Scaranna C, Dodesini AR, Bellante R, Trevisan R. Advanced Hybrid Closed-Loop System Achieves and Maintains Recommended Time in Range Levels for Up To 2 Years: Predictors of Best Efficacy. Diabetes Technol Ther 2024; 26:49-58. [PMID: 37902785 DOI: 10.1089/dia.2023.0261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Aim: To evaluate the long-term efficacy, up to 2 years, of an advanced hybrid closed-loop (AHCL) system and to assess predictors of best results of the therapy. Methods: We retrospectively evaluated 296 adults with type 1 diabetes mellitus [mean age 42.8 ± 16.5 years, men 42.9%, duration of diabetes 22.5 ± 12.8 years, body mass index 24.9 ± 4.7 kg/m2, baseline glycated hemoglobin (HbA1c) 63.4 ± 12.2 mmol/mol (8.0 ± 1.1%) ] who used the MiniMed™ 780G system. Demographic and clinical data were recorded. Continuous glucose monitoring (CGM)-derived metrics and insulin requirement were analyzed from the 4 weeks before and from every quarter after the switch to the AHCL system. Results: In the first quarter of AHCL treatment, all CGM metrics improved. Time in range (TIR) increased from 58.1 ± 17.5% to 70.3 ± 9.5% (P < 0.0001). The improvement lasted for up to 2 years of observation regardless of previous insulin therapies. Throughout the period of observation, 53.4% of participants achieved mean TIR >70%, 92.6% mean time below range <4%, and 46% mean glucose management indicator <53 mmol/mol (7.0%). At univariable logistic regression older age, lower baseline HbA1c and insulin requirement were associated with mean TIR >70%. At multivariable analysis, lower HbA1c remained independently associated with a better glycemic control. However, mean TIR increased more in participants with a higher baseline HbA1c. Conclusions: Switching to an AHCL leads to a rapid improvement in glycemic control lasting for up to 24 months along with a low risk for hypoglycemia, confirming the safety of the system. Lower baseline HbA1c was the main predictor of better efficacy of therapy, although higher baseline HbA1c was associated with the greatest improvement in mean TIR.
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Affiliation(s)
- Giuseppe Lepore
- Unit of Endocrine Diseases and Diabetology, Department of Medicine, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Nicolò Diego Borella
- Unit of Endocrine Diseases and Diabetology, Department of Medicine, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Giona Castagna
- Unit of Endocrine Diseases and Diabetology, Department of Medicine, ASST Papa Giovanni XXIII, Bergamo, Italy
- Department of Medicine, Università degli Studi di Milano-Bicocca, Milan, Italy
| | - Silvia Ippolito
- Unit of Endocrine Diseases and Diabetology, Department of Medicine, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Silvia Bonfadini
- Unit of Endocrine Diseases and Diabetology, Department of Medicine, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Anna Corsi
- Unit of Endocrine Diseases and Diabetology, Department of Medicine, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Cristiana Scaranna
- Unit of Endocrine Diseases and Diabetology, Department of Medicine, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Alessandro Roberto Dodesini
- Unit of Endocrine Diseases and Diabetology, Department of Medicine, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Rosalia Bellante
- Unit of Endocrine Diseases and Diabetology, Department of Medicine, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Roberto Trevisan
- Unit of Endocrine Diseases and Diabetology, Department of Medicine, ASST Papa Giovanni XXIII, Bergamo, Italy
- Department of Medicine, Università degli Studi di Milano-Bicocca, Milan, Italy
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Benhamou PY, Adenis A, Lablanche S, Franc S, Amadou C, Penfornis A, Kariyawasam D, Beltrand J, Charpentier G. First Generation of a Modular Interoperable Closed-Loop System for Automated Insulin Delivery in Patients With Type 1 Diabetes: Lessons From Trials and Real-Life Data. J Diabetes Sci Technol 2023; 17:1433-1439. [PMID: 37449762 PMCID: PMC10658690 DOI: 10.1177/19322968231186976] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
BACKGROUND DBLG1 (Diabeloop Generation 1) stands as one of the five commercially available closed-loop solution worldwide for patients with type 1 diabetes as of 2023. Our aim was to provide an overview of all data obtained with this system regarding outcomes and populations, with an emphasis on interoperability. METHODS This report includes all available sources of data (three randomized control trials and five surveys on real-life data). Collection ran from March 3, 2017 to April 30, 2022. RESULTS We gathered data from 6859 adult patients treated with closed-loop from three to 12 months. Overall, all sources of data showed that time in range (TIR) 70 to 180 mg/dL, starting from 47.4% to 56.6%, improved from 12.2 to 17.3 percentage points. Time in hypoglycemia was reduced by 48% in average (range: 26%-70%) and reached a level of 1.3% in the largest and most recent cohort. In patients with excessive time in hypoglycemia at baseline (≥5%), closed-loop allowed a reduction in time below range (TBR) by 59%. The comparison of days with declared physical activity versus days without physical activity did not show differences in TBR. The improvement in TIR observed with three different pump systems (Vicentra Kaleido, n = 117; Sooil Dana-I, n = 84; and Roche Insight, n = 6684) ranged from 15.4 to 17.3 percentage points. DISCUSSION These data obtained in different European countries were consistent throughout all reports, showing that this closed-loop system is efficient (high improvement in TIR), safe (remarkably low level of TBR), and interoperable (three pump settings so far).
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Affiliation(s)
- Pierre-Yves Benhamou
- Department of Endocrinology, Grenoble
University Hospital, Grenoble Alpes University, INSERM U1055, Laboratory of
Fundamental and Applied Bioenergetics, Grenoble, France
- Endocrinology, Centre Hospitalier
Universitaire Grenoble Alpes, Grenoble Alpes University, Grenoble, France
| | | | - Sandrine Lablanche
- Department of Endocrinology, Grenoble
University Hospital, Grenoble Alpes University, INSERM U1055, Laboratory of
Fundamental and Applied Bioenergetics, Grenoble, France
| | - Sylvia Franc
- Center for Study and Research for
Improvement of the Treatment of Diabetes, Bioparc-Genopole Evry-Corbeil, Evry,
France
- Department of Diabetes and
Endocrinology, Sud-Francilien Hospital, Corbeil-Essonnes, France
- Department of Endocrinology,
Diabetology & Metabolic Diseases, Sud-Francilien Hospital, Paris-Saclay
University, Corbeil-Essonnes, France
| | - Coralie Amadou
- Department of Endocrinology,
Diabetology & Metabolic Diseases, Sud-Francilien Hospital, Paris-Saclay
University, Corbeil-Essonnes, France
| | - Alfred Penfornis
- Department of Endocrinology,
Diabetology & Metabolic Diseases, Sud-Francilien Hospital, Paris-Saclay
University, Corbeil-Essonnes, France
| | - Dulanjalee Kariyawasam
- Paediatric Endocrinology, Diabetology,
Gynaecology Department, Necker-Enfants Malades University Hospital, Assistance
Publique des Hôpitaux de Paris-Centre, Paris, France
- Paris Cite University, Paris,
France
| | - Jacques Beltrand
- Paediatric Endocrinology, Diabetology,
Gynaecology Department, Necker-Enfants Malades University Hospital, Assistance
Publique des Hôpitaux de Paris-Centre, Paris, France
- Paris Cite University, Paris,
France
| | - Guillaume Charpentier
- Center for Study and Research for
Improvement of the Treatment of Diabetes, Bioparc-Genopole Evry-Corbeil, Evry,
France
- Department of Diabetes and
Endocrinology, Sud-Francilien Hospital, Corbeil-Essonnes, France
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13
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Blervaque J, Lablanche S, Romero-Ugalde H, Adenis A, Charpentier G, Benhamou PY. Comment on Haidar et al. A Randomized Crossover Trial to Compare Automated Insulin Delivery (the Artificial Pancreas) With Carbohydrate Counting or Simplified Qualitative Meal-Size Estimation in Type 1 Diabetes. Diabetes Care 2023;46:1372-1378. Diabetes Care 2023; 46:e207-e208. [PMID: 37729499 PMCID: PMC10516246 DOI: 10.2337/dc23-1243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Affiliation(s)
- Julie Blervaque
- Department of Endocrinology, Grenoble University Hospital, Grenoble Alpes University, Grenoble, France
| | - Sandrine Lablanche
- Department of Endocrinology, Grenoble University Hospital, Grenoble Alpes University, Grenoble, France
| | | | | | - Guillaume Charpentier
- CERITD (Center for Study and Research for Improvement of the Treatment of Diabetes), Bioparc-Genopole Evry-Corbeil, Evry, France
| | - Pierre Yves Benhamou
- Department of Endocrinology, Grenoble University Hospital, Grenoble Alpes University, Grenoble, France
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Newman C, Hartnell S, Wilinska M, Alwan H, Hovorka R. Real-World Evidence of the Cambridge Hybrid Closed-Loop App With a Novel Real-Time Continuous Glucose Monitoring System. J Diabetes Sci Technol 2023:19322968231187915. [PMID: 37503893 DOI: 10.1177/19322968231187915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
We evaluated the performance of the interoperable Cambridge hybrid closed-loop app with FreeStyle Libre 3 glucose sensor, and YpsoPump insulin pump in a real-world setting. Data from 100 users (63 adults [mean ± SD age 41.9 ± 14.0 years], 15 children [8.6 ± 5.2 years)] and 22 users of unreported age) for a period of 28 days were analyzed. Time in range (3.91- 10.0mmol/L) was 72.6 ± 11.1% overall. Time below range (<3.9mmol/L) was 3.1% (1.4-5.1) (median [interquartile range]). Auto-mode was active for 95.8% (91.8-97.9) of time. This real-world analysis suggests that the performance of Cambridge hybrid closed-loop app with this glucose sensor is comparable to other commercially available hybrid closed-loop systems.
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Affiliation(s)
- Christine Newman
- Wolfson Diabetes and Endocrinology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Sara Hartnell
- Wolfson Diabetes and Endocrinology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Malgorzata Wilinska
- Wellcome-MRC Institute of Metabolic Science-Metabolic Research Laboratories, University of Cambridge, Cambridge, UK
- Department of Paediatrics, University of Cambridge, Cambridge, UK
| | - Heba Alwan
- Wellcome-MRC Institute of Metabolic Science-Metabolic Research Laboratories, University of Cambridge, Cambridge, UK
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
| | - Roman Hovorka
- Wellcome-MRC Institute of Metabolic Science-Metabolic Research Laboratories, University of Cambridge, Cambridge, UK
- Department of Paediatrics, University of Cambridge, Cambridge, UK
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