Controlled Insulin Delivery: Combining Technology With Treatment
18. März 2021 aktualisiert von: Sansum Diabetes Research Institute
Hypothesis: Closed-loop control systems for an artificial pancreas using multi-parametric model predictive control can be developed and evaluated safely in patients with Type 1 Diabetes Mellitus (T1DM) to control blood glucose concentrations.
This study seeks to combine real-time continuous glucose sensing with automated insulin delivery in a closed-loop system that will achieve euglycemia in patients with T1DM. The end result of this line of research will be an artificial pancreas that will provide around-the-clock glucose regulation through controlled insulin delivery in response to detected patterns of change in glucose levels.
Studienübersicht
Status
Abgeschlossen
Bedingungen
Intervention / Behandlung
Detaillierte Beschreibung
The goal of the JDRF Artificial Pancreas Project is to produce an autonomous artificial pancreas that can safely and effectively regulate glycemia in people with type 1 diabetes mellitus.
In our work, this fully automated closed-loop system combines a subcutaneous continuous glucose monitor (CGM) and a continuous subcutaneous insulin infusion (CSII) pump with a sophisticated control algorithm.
This is a proof-of-concept study to demonstrate that the controller could bring the patient back to a relatively normal glucose concentration after an unannounced meal and from mild hyperglycemia.
Once the system is initiated, all insulin delivery is calculated automatically.
There was no outside intervention either by the subject or medical personnel.
An artificial pancreas system that aims at replicating normal beta-cell function by using the subcutaneous-subcutaneous (sc-sc) route needs to address inherent delays in both glucose sensing and insulin delivery.
Our strategic approach is that a closed-loop system should operate safely without any knowledge of meals or other disturbances.
We have developed the Artificial Pancreas System (APS©) and used it to clinically evaluate a control strategy that allows efficient glycemic control without any a priori meal information.
The Artificial Pancreas device uses the Artificial Pancreas System (APS©) platform with the OmniPod insulin pump, the DexCom SEVEN PLUS CGM and a multi-parametric model predictive control algorithm (mpMPC) with an insulin-on-board (IOB) safety constraint.
Studientyp
Interventionell
Einschreibung (Tatsächlich)
19
Phase
- Frühphase 1
Kontakte und Standorte
Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.
Studienorte
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Petah Tikva, Israel
- Schneider Children's Medical Center of Israel
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California
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Santa Barbara, California, Vereinigte Staaten, 93105
- Sansum Diabetes Research Institute
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Teilnahmekriterien
Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.
Zulassungskriterien
Studienberechtigtes Alter
18 Jahre und älter (Erwachsene, Älterer Erwachsener)
Akzeptiert gesunde Freiwillige
Nein
Studienberechtigte Geschlechter
Alle
Beschreibung
Inclusion Criteria:
- Willing to sign the consent form
- Type 1 diabetes for at least 1 year prior to the study
- Using continuous subcutaneous insulin infusion pump
- Above 21 years of age
- Willing to follow the study requirements
Exclusion Criteria:
- Allergy to the sensor or to one of its components
- Psychiatric disorders
- Reported diabetic ketoacidosis within last 3 months
- Abnormal liver function (Transaminase > 2 times the upper limit of normal)
- Heart failure
- Any carcinogenic disease
- Any other chronic abnormality
- Unwilling to perform or to follow the research protocol
- Participation in any other study concurrent with the proposed study
- Creatinine concentration above the upper limit of normal for age and sex
- Active coronary artery disease
- Active gastroparesis
- History of uncontrolled seizures
- Pregnancy
- Untreated adrenal insufficiency
- Hypokalemia
- Uncontrolled thyroid disease.
- Condition, which in the opinion of the investigator, would interfere with patient safety
Studienplan
Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: N / A
- Interventionsmodell: Einzelgruppenzuweisung
- Maskierung: Keine (Offenes Etikett)
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
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Experimental: Closed-loop control system
The objective of this study is to automate glucose control in subjects with type 1 diabetes using a computer control algorithm in a controlled in-clinic research setting. The controller will be evaluated under two conditions:
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Subjects will arrive fasting at 7am unless needed for hypoglycemia (glucose < 70 mg/dL) and no extra bolus insulin after 3am. An IV catheter will be inserted for blood samples and for IV administration of glucose if necessary. Blood samples will be analyzed for glucose by YSI 2300Stat every 30 minutes. Breakfast consisting of 25g of CHO will be eaten at 7:30 am and the subject will bolus for this amount of CHO. The controller is switched "on" on the down slope of the meal response, and the subject is brought to a basal steady-state by the controller. Target blood glucose is 110 ± 30-mg/dL. After approximately 3 hours a small lunch will be eaten consisting of 25g of CHO (unannounced meal challenge). The subject will be monitored until blood glucose returns to euglycemia.
Andere Namen:
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Restoration of Euglycemia
Zeitfenster: 12 hours
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The primary endpoint of this pilot study is successful restoration of euglycemia from the two perturbed conditions using closed loop control with minimal hypo- and hyperglycemia exposure.
The first condition involves restoration of euglycemia when the subject is in a hyperglycemic state.
The second condition involves restoration of euglycemia following consumption of a meal containing 25g CHO with no insulin bolus.
The patients will be followed for the duration of the 12 hour study.
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12 hours
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Average percent-of-time-in-range (80 - 180 mg/dL)
Zeitfenster: 12 hours
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All reported blood glucose values per both CGM and YSI ware analyzed for average percent-of-time-in-range (80 - 180 mg/dL).
The participants will be followed for the duration of the 12 hour study.
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12 hours
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Mitarbeiter und Ermittler
Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.
Ermittler
- Hauptermittler: Lois Jovanovic, M.D., Sansum Diabetes Research Institute
Publikationen und hilfreiche Links
Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.
Allgemeine Veröffentlichungen
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- Steil GM, Panteleon AE, Rebrin K. Closed-loop insulin delivery-the path to physiological glucose control. Adv Drug Deliv Rev. 2004 Feb 10;56(2):125-44. doi: 10.1016/j.addr.2003.08.011.
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- Bellazzi R, Nucci G, Cobelli C. The subcutaneous route to insulin-dependent diabetes therapy. IEEE Eng Med Biol Mag. 2001 Jan-Feb;20(1):54-64. doi: 10.1109/51.897828. No abstract available.
- Bequette BW. A critical assessment of algorithms and challenges in the development of a closed-loop artificial pancreas. Diabetes Technol Ther. 2005 Feb;7(1):28-47. doi: 10.1089/dia.2005.7.28.
- Bevier WC, Zisser H, Palerm CC, Finan DA, Seborg DE, Doyle FJ, Wollitzer AO, Jovanovic L. Calculating the insulin to carbohydrate ratio using the hyperinsulinaemic-euglycaemic clamp-a novel use for a proven technique. Diabetes Metab Res Rev. 2007 Sep;23(6):472-8. doi: 10.1002/dmrr.727.
- Bode BW. Clinical utility of the continuous glucose monitoring system. Diabetes Technol Ther. 2000;2 Suppl 1:S35-41. doi: 10.1089/15209150050214104. No abstract available.
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- Broekhuyse HM, Nelson JD, Zinman B, Albisser AM. Comparison of algorithms for the closed-loop control of blood glucose using the artificial beta cell. IEEE Trans Biomed Eng. 1981 Oct;28(10):678-87. doi: 10.1109/tbme.1981.324661. No abstract available.
- Chanoch LH, Jovanovic L, Peterson CM. The evaluation of a pocket computer as an aid to insulin dose determination by patients. Diabetes Care. 1985 Mar-Apr;8(2):172-6. doi: 10.2337/diacare.8.2.172.
- Dalla Man C, Caumo A, Basu R, Rizza R, Toffolo G, Cobelli C. Measurement of selective effect of insulin on glucose disposal from labeled glucose oral test minimal model. Am J Physiol Endocrinol Metab. 2005 Nov;289(5):E909-14. doi: 10.1152/ajpendo.00299.2004. Epub 2005 Jun 21.
- Dassau E, Palerm CC, Zisser H, Buckingham BA, Jovanovic L, Doyle FJ. In silico evaluation platform for artificial pancreatic beta-cell development--a dynamic simulator for closed-loop control with hardware-in-the-loop. Diabetes Technol Ther. 2009 Mar;11(3):187-94. doi: 10.1089/dia.2008.0055.
- Dassau E, Zisser H, C Palerm C, A Buckingham B, Jovanovic L, J Doyle F 3rd. Modular artificial beta-cell system: a prototype for clinical research. J Diabetes Sci Technol. 2008 Sep;2(5):863-72. doi: 10.1177/193229680800200518.
- Diabetes Research in Children Network (DirecNet) Study Group; Buckingham B, Beck RW, Tamborlane WV, Xing D, Kollman C, Fiallo-Scharer R, Mauras N, Ruedy KJ, Tansey M, Weinzimer SA, Wysocki T. Continuous glucose monitoring in children with type 1 diabetes. J Pediatr. 2007 Oct;151(4):388-93, 393.e1-2. doi: 10.1016/j.jpeds.2007.03.047. Epub 2007 Aug 24.
- Dua P, Doyle FJ 3rd, Pistikopoulos EN. Model-based blood glucose control for Type 1 diabetes via parametric programming. IEEE Trans Biomed Eng. 2006 Aug;53(8):1478-91. doi: 10.1109/TBME.2006.878075.
- Garg S, Zisser H, Schwartz S, Bailey T, Kaplan R, Ellis S, Jovanovic L. Improvement in glycemic excursions with a transcutaneous, real-time continuous glucose sensor: a randomized controlled trial. Diabetes Care. 2006 Jan;29(1):44-50. doi: 10.2337/diacare.29.01.06.dc05-1686.
- Hovorka R, Chassin LJ, Wilinska ME, Canonico V, Akwi JA, Federici MO, Massi-Benedetti M, Hutzli I, Zaugg C, Kaufmann H, Both M, Vering T, Schaller HC, Schaupp L, Bodenlenz M, Pieber TR. Closing the loop: the adicol experience. Diabetes Technol Ther. 2004 Jun;6(3):307-18. doi: 10.1089/152091504774197990.
- Hovorka R, Shojaee-Moradie F, Carroll PV, Chassin LJ, Gowrie IJ, Jackson NC, Tudor RS, Umpleby AM, Jones RH. Partitioning glucose distribution/transport, disposal, and endogenous production during IVGTT. Am J Physiol Endocrinol Metab. 2002 May;282(5):E992-1007. doi: 10.1152/ajpendo.00304.2001.
- Jeha GS, Karaviti LP, Anderson B, Smith EO, Donaldson S, McGirk TS, Haymond MW. Insulin pump therapy in preschool children with type 1 diabetes mellitus improves glycemic control and decreases glucose excursions and the risk of hypoglycemia. Diabetes Technol Ther. 2005 Dec;7(6):876-84. doi: 10.1089/dia.2005.7.876.
- Jones SM, Quarry JL, Caldwell-McMillan M, Mauger DT, Gabbay RA. Optimal insulin pump dosing and postprandial glycemia following a pizza meal using the continuous glucose monitoring system. Diabetes Technol Ther. 2005 Apr;7(2):233-40. doi: 10.1089/dia.2005.7.233.
- Jovanovic L. Role of diet and insulin treatment of diabetes in pregnancy. Clin Obstet Gynecol. 2000 Mar;43(1):46-55. doi: 10.1097/00003081-200003000-00005. No abstract available.
- Kan S, Onodera H, Furutani E, Aung T, Araki M, Nishimura H, Maetani S, Imamura M. Novel control system for blood glucose using a model predictive method. ASAIO J. 2000 Nov-Dec;46(6):657-62. doi: 10.1097/00002480-200011000-00004.
- Kaufman FR. Searching for glycemic control in pediatric type 1 diabetes: A long way to go. J Pediatr. 2001 Aug;139(2):174-6. doi: 10.1067/mpd.2001.117573. No abstract available.
- Klonoff DC. A review of continuous glucose monitoring technology. Diabetes Technol Ther. 2005 Oct;7(5):770-5. doi: 10.1089/dia.2005.7.770. No abstract available.
- Kovatchev BP, Cox DJ, Gonder-Frederick LA, Young-Hyman D, Schlundt D, Clarke W. Assessment of risk for severe hypoglycemia among adults with IDDM: validation of the low blood glucose index. Diabetes Care. 1998 Nov;21(11):1870-5. doi: 10.2337/diacare.21.11.1870.
- Lehmann ED, Deutsch T. A physiological model of glucose-insulin interaction in type 1 diabetes mellitus. J Biomed Eng. 1992 May;14(3):235-42. doi: 10.1016/0141-5425(92)90058-s.
- Lehmann ED, Deutsch T. Compartmental models for glycaemic prediction and decision-support in clinical diabetes care: promise and reality. Comput Methods Programs Biomed. 1998 May;56(2):193-204. doi: 10.1016/s0169-2607(98)00025-x.
- Livesey G, Wilson PD, Dainty JR, Brown JC, Faulks RM, Roe MA, Newman TA, Eagles J, Mellon FA, Greenwood RH. Simultaneous time-varying systemic appearance of oral and hepatic glucose in adults monitored with stable isotopes. Am J Physiol. 1998 Oct;275(4):E717-28. doi: 10.1152/ajpendo.1998.275.4.E717.
- Magni L, Raimondo DM, Man CD, Breton M, Patek S, Nicolao GD, Cobelli C, Kovatchev BP. Evaluating the efficacy of closed-loop glucose regulation via control-variability grid analysis. J Diabetes Sci Technol. 2008 Jul;2(4):630-5. doi: 10.1177/193229680800200414.
- Matsuo Y, Shimoda S, Sakakida M, Nishida K, Sekigami T, Ichimori S, Ichinose K, Shichiri M, Araki E. Strict glycemic control in diabetic dogs with closed-loop intraperitoneal insulin infusion algorithm designed for an artificial endocrine pancreas. J Artif Organs. 2003;6(1):55-63. doi: 10.1007/s100470300009.
- Mauras N, Beck RW, Ruedy KJ, Kollman C, Tamborlane WV, Chase HP, Buckingham BA, Tsalikian E, Weinzimer S, Booth AD, Xing D; Diabetes Research in Children Network (DirecNet) Accuracy Study. Lack of accuracy of continuous glucose sensors in healthy, nondiabetic children: results of the Diabetes Research in Children Network (DirecNet) accuracy study. J Pediatr. 2004 Jun;144(6):770-5. doi: 10.1016/j.jpeds.2004.03.042.
- Owens C, Zisser H, Jovanovic L, Srinivasan B, Bonvin D, Doyle FJ 3rd. Run-to-run control of blood glucose concentrations for people with Type 1 diabetes mellitus. IEEE Trans Biomed Eng. 2006 Jun;53(6):996-1005. doi: 10.1109/TBME.2006.872818.
- Palerm CC, Zisser H, Bevier WC, Jovanovic L, Doyle FJ 3rd. Prandial insulin dosing using run-to-run control: application of clinical data and medical expertise to define a suitable performance metric. Diabetes Care. 2007 May;30(5):1131-6. doi: 10.2337/dc06-2115. Epub 2007 Feb 15.
- Palerm CC, Zisser H, Jovanovic L, Doyle FJ 3rd. A Run-to-Run Control Strategy to Adjust Basal Insulin Infusion Rates in Type 1 Diabetes. J Process Control. 2008;18(3-4):258-265. doi: 10.1016/j.jprocont.2007.07.010.
- Parker RS, Doyle FJ 3rd, Peppas NA. A model-based algorithm for blood glucose control in type I diabetic patients. IEEE Trans Biomed Eng. 1999 Feb;46(2):148-57. doi: 10.1109/10.740877.
- Parker RS, Doyle FJ 3rd, Peppas NA. The intravenous route to blood glucose control. IEEE Eng Med Biol Mag. 2001 Jan-Feb;20(1):65-73. doi: 10.1109/51.897829. No abstract available.
- Peterson CM, Jones RL, Drexler AJ, Jovanovic LB. A randomized comparative crossover evaluation of glucose monitoring technologies. Diabetes Res. 1984 Nov;1(4):195-9.
- Peterson CM, Jovanovic L, Chanoch LH. Randomized trial of computer-assisted insulin delivery in patients with type I diabetes beginning pump therapy. Am J Med. 1986 Jul;81(1):69-72. doi: 10.1016/0002-9343(86)90184-1.
- Palerm CC, Rodriguez-Fernandez M, Bevier WC, Zisser H, Banga JR, Jovanovic L, Doyle FJ 3rd. Robust parameter estimation in a model for glucose kinetics in type 1 diabetes subjects. Conf Proc IEEE Eng Med Biol Soc. 2006;2006:319-22. doi: 10.1109/IEMBS.2006.260045.
- Shimoda S, Nishida K, Sakakida M, Konno Y, Ichinose K, Uehara M, Nowak T, Shichiri M. Closed-loop subcutaneous insulin infusion algorithm with a short-acting insulin analog for long-term clinical application of a wearable artificial endocrine pancreas. Front Med Biol Eng. 1997;8(3):197-211.
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Studienaufzeichnungsdaten
Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.
Haupttermine studieren
Studienbeginn
1. Juli 2008
Primärer Abschluss (Tatsächlich)
1. Januar 2010
Studienabschluss (Tatsächlich)
1. Januar 2010
Studienanmeldedaten
Zuerst eingereicht
15. November 2011
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
30. November 2011
Zuerst gepostet (Schätzen)
2. Dezember 2011
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
23. März 2021
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
18. März 2021
Zuletzt verifiziert
1. März 2021
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- JDRF 22-2009-796
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