January 6, 2016
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January 21, 2016
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June 6, 2018
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August 7, 2018
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March 3, 2020
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January 2016
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February 15, 2017 (Final data collection date for primary outcome measure)
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Glycemic Response During Exercise and Early Recovery [ Time Frame: 0 to 75 minutes following exercise initiation (0, 5, 10, 15, 25, 35, 45, 50, 55, 60, 75 min) ] Comparison of glycemic response (from blood glucose) during exercise and early recovery between each exercise strategy.
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Glycemic response [ Time Frame: 0 to 75 minutes following exercise initiation ] Comparison of glycemic response during each exercise strategy. Glucose over various time points throughout exercise and early recovery will be assessed. The primary analysis will compare the mini-dose glucagon group (strategy 3) with the control group.
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- Number of Participants With Hypoglycemia (<70 mg/dL) During Exercise and Early Recovery [ Time Frame: 0 to 75 minutes following exercise initiation ]
Comparison of occurrence of hypoglycemia (<70 mg/dL from blood glucose) during exercise and early recovery between each exercise strategy.
- Number of Participants With Hyperglycemia (≥250 mg/dL) During Exercise and Early Recovery [ Time Frame: 0 to 75 minutes following exercise initiation ]
Comparison of occurrence of hyperglycemia (≥250 mg/dL from blood glucose) during exercise and early recovery between each exercise strategy.
- Continuous Glucose Monitor (CGM) Metrics During Late Recovery - Nadir Glucose [ Time Frame: 90 min after the standard meal until 1200 noon the day after each exercise session ]
Comparison of nadir glucose from CGM between the exercise strategies.
- CGM Metrics During Late Recovery - Peak Glucose [ Time Frame: 90 min after the standard meal until 1200 noon the day after each exercise session ]
Comparison of peak glucose from CGM between the exercise strategies.
- CGM Metrics During Late Recovery - Mean Glucose [ Time Frame: 90 min after the standard meal until 1200 noon the day after each exercise session ]
Comparison of mean glucose from CGM between the exercise strategies.
- CGM Metrics During Late Recovery - Coefficient of Variation [ Time Frame: 90 min after the standard meal until 1200 noon the day after each exercise session ]
Comparison of the coefficient of variation from CGM between the exercise strategies.
- CGM Metrics During Late Recovery - Time < 54 mg/dL [ Time Frame: 90 min after the standard meal until 1200 noon the day after each exercise session ]
Comparison of percentage of time < 54 mg/dL from CGM between the exercise strategies.
- CGM Metrics During Late Recovery - Time < 70 mg/dL [ Time Frame: 90 min after the standard meal until 1200 noon the day after each exercise session ]
Comparison of percentage of time < 70 mg/dL from CGM between the exercise strategies.
- CGM Metrics During Late Recovery - Time in Range (70-180 mg/dL) [ Time Frame: 90 min after the standard meal until 1200 noon the day after each exercise session ]
Comparison of percentage of time in range (70-180 mg/dL) from CGM between the exercise strategies.
- CGM Metrics During Late Recovery - Time > 180 mg/dL [ Time Frame: 90 min after the standard meal until 1200 noon the day after each exercise session ]
Comparison of percentage of time > 180 mg/dL from CGM between the exercise strategies.
- CGM Metrics During Late Recovery - Time > 250 mg/dL [ Time Frame: 90 min after the standard meal until 1200 noon the day after each exercise session ]
Comparison of percentage of time > 250 mg/dL from CGM between the exercise strategies.
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- Occurrence of hypoglycemia (<70 mg/dL) [ Time Frame: 0 to 75 minutes following exercise initiation ]
- Occurrence of hyperglycemia (≥270 mg/dL) [ Time Frame: 0 to 165 minutes following exercise initiation ]
- Glucose levels (venous plasma) [ Time Frame: 0 to 165 minutes following exercise initiation ]
- % of time below 70 mg/dL [ Time Frame: From 75 minutes post exercise initiation through noon the following day ]
(from CGM)
- % of time in range (70-180 mg/dL) [ Time Frame: From 75 minutes post exercise initiation through noon the following day ]
(from CGM)
- Mean Glucose levels [ Time Frame: From 75 minutes post exercise initiation through noon the following day ]
(from CGM)
- Occurrence of hypoglycemia (<70 mg/dL) overnight [ Time Frame: From 75 minutes post exercise initiation through noon the following day ]
(from CGM)
- Nadir Glucose levels [ Time Frame: From 75 minutes post exercise initiation through noon the following day ]
(from CGM)
- Area above and below curve threshold (i.e. area above or below 70-180 mg/dL) [ Time Frame: From 75 minutes post exercise initiation through noon the following day ]
(from CGM)
- Carbohydrate intake [ Time Frame: 60 minutes prior to exercise initiation to 75 minutes post exercise initiation ]
case report form
- Heart Rate [ Time Frame: 0 to 45 minutes following exercise initiation ]
physiological parameter
- Ratings of perceived exertion [ Time Frame: 0 to 45 minutes following exercise initiation ]
scale
- Insulin [ Time Frame: From 0 to 165 minutes post exercise initiation ]
lab
- Glucose counter-regulatory hormones [ Time Frame: From 0 to 165 minutes post exercise initiation ]
lab
- Inflammatory cytokines [ Time Frame: From 0 to 165 minutes post exercise initiation ]
lab
- Metabolites [ Time Frame: From 0 to 165 minutes post exercise initiation ]
lab
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Not Provided
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- Proportion reporting at least one adverse event [ Time Frame: Through study completion, an average of 12 weeks ]
Adverse events will be tabulated by strategy
- Proportion with an adverse event thought by investigator to be related to strategy [ Time Frame: Through study completion, an average of 12 weeks ]
Adverse events will be tabulated by strategy
- Proportion who stopped study treatment in response to an adverse event [ Time Frame: Through study completion, an average of 12 weeks ]
Adverse events will be tabulated by strategy
- Total number of adverse events reported [ Time Frame: Through study completion, an average of 12 weeks ]
Adverse events will be tabulated by strategy
- Number of serious adverse events reported [ Time Frame: Through study completion, an average of 12 weeks ]
Adverse events will be tabulated by strategy
- Number of non-serious adverse events reported [ Time Frame: Through study completion, an average of 12 weeks ]
Adverse events will be tabulated by strategy
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The Use of Mini-dose Glucagon to Prevent Exercise-induced Hypoglycemia in Type 1 Diabetes
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The Use of Mini-dose Glucagon to Prevent Exercise-induced Hypoglycemia in Type 1 Diabetes
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This project focuses on development of new strategy for the prevention of exercise-associated hypoglycemia using mini-dose glucagon.
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The primary objective of the protocol is to determine if the administration of mini-dose glucagon administered subcutaneously just before exercise produces better glucose stability than no adjustments for moderate intensity exercise in patients with Type 1 Diabetes (T1D). It will also be assessed whether mini-dose glucagon before exercise produces better glucose stability than basal insulin reductions or extra carbohydrate consumption.
This is a randomized, 4-way crossover trial. The trial will include 16 participants who complete the study.
Each participant will undergo four aerobic exercise sessions (in random order), with different strategies for glucose regulation:
- Control Trial: Fasted exercise, no basal insulin reduction
- Strategy 1: Fasted exercise, basal insulin reduction only (50% reduction in basal rate at 60 minutes before exercise, for the duration of the exercise)
- Strategy 2: Fasted exercise, no basal adjustment + pre-exercise glucose tabs (buccal route-40 grams in total )
- Strategy 3: Fasted exercise, no basal adjustment + pre-exercise mini-dose glucagon (sc)
In all 4 sessions, aerobic exercise will be performed in the fasted state (before a standardized meal) for 45 minuets at ~50-55% of the participant's per-determined aerobic capacity. The participant's pump will be blinded during the control trial, strategy 1, and strategy 3 and an injection of saline will be given during the control trial and strategy 1 so that participant is blinded to strategy.
The primary outcome for this study will be the glycemic response during exercise and early recovery.
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Interventional
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Phase 2
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Allocation: Randomized Intervention Model: Crossover Assignment Masking: Single (Participant) Primary Purpose: Prevention
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Diabetes Mellitus, Type 1
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- Drug: G-Pen Mini™ (glucagon injection)
Glucagon (150 µg) 5 minutes before the start of exercise (SQ-abdomen).
Other Name: mini-dose glucagon
- Other: Glucose Tabs
Dextrose tabs orally (20 grams) 5 minutes before the start of exercise and at 30 minutes of exercise (total 40 grams).
Other Name: over-the-counter oral glucose tablets
- Other: Basal Insulin Reduction
Basal insulin reduction to 50% 5 minutes before the start of exercise.
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- No Intervention: Control
No basal insulin adjustment, no carbohydrate intake (until glucose drops <70 mg/dL).
- Active Comparator: Basal insulin reduction
Basal insulin reduction to 50% five minutes before the start of exercise.
Intervention: Other: Basal Insulin Reduction
- Active Comparator: Glucose Tabs
Dextrose tabs orally (20 grams) five minutes before the start of exercise and at 30 minutes of exercise (total 40 grams).
Intervention: Other: Glucose Tabs
- Experimental: G-Pen Mini™ (glucagon injection)
Glucagon (150 µg) five minutes before the start of exercise (SQ-abdomen).
Intervention: Drug: G-Pen Mini™ (glucagon injection)
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- Chu L, Hamilton J, Riddell MC. Clinical management of the physically active patient with type 1 diabetes. Phys Sportsmed. 2011 May;39(2):64-77. doi: 10.3810/psm.2011.05.1896.
- West DJ, Morton RD, Bain SC, Stephens JW, Bracken RM. Blood glucose responses to reductions in pre-exercise rapid-acting insulin for 24 h after running in individuals with type 1 diabetes. J Sports Sci. 2010 May;28(7):781-8. doi: 10.1080/02640411003734093.
- Brazeau AS, Rabasa-Lhoret R, Strychar I, Mircescu H. Barriers to physical activity among patients with type 1 diabetes. Diabetes Care. 2008 Nov;31(11):2108-9. doi: 10.2337/dc08-0720. Epub 2008 Aug 8.
- Rabasa-Lhoret R, Bourque J, Ducros F, Chiasson JL. Guidelines for premeal insulin dose reduction for postprandial exercise of different intensities and durations in type 1 diabetic subjects treated intensively with a basal-bolus insulin regimen (ultralente-lispro). Diabetes Care. 2001 Apr;24(4):625-30. doi: 10.2337/diacare.24.4.625.
- Campbell MD, Walker M, Trenell MI, Jakovljevic DG, Stevenson EJ, Bracken RM, Bain SC, West DJ. Large pre- and postexercise rapid-acting insulin reductions preserve glycemia and prevent early- but not late-onset hypoglycemia in patients with type 1 diabetes. Diabetes Care. 2013 Aug;36(8):2217-24. doi: 10.2337/dc12-2467. Epub 2013 Mar 20.
- Stenerson M, Cameron F, Payne SR, Payne SL, Ly TT, Wilson DM, Buckingham BA. The impact of accelerometer use in exercise-associated hypoglycemia prevention in type 1 diabetes. J Diabetes Sci Technol. 2015 Jan;9(1):80-5. doi: 10.1177/1932296814551045. Epub 2014 Sep 17.
- Tsalikian E, Mauras N, Beck RW, Tamborlane WV, Janz KF, Chase HP, Wysocki T, Weinzimer SA, Buckingham BA, Kollman C, Xing D, Ruedy KJ; Diabetes Research In Children Network Direcnet Study Group. Impact of exercise on overnight glycemic control in children with type 1 diabetes mellitus. J Pediatr. 2005 Oct;147(4):528-34. doi: 10.1016/j.jpeds.2005.04.065.
- Tanenberg RJ, Newton CA, Drake AJ. Confirmation of hypoglycemia in the "dead-in-bed" syndrome, as captured by a retrospective continuous glucose monitoring system. Endocr Pract. 2010 Mar-Apr;16(2):244-8. doi: 10.4158/EP09260.CR.
- Campbell MD, Walker M, Trenell MI, Luzio S, Dunseath G, Tuner D, Bracken RM, Bain SC, Russell M, Stevenson EJ, West DJ. Metabolic implications when employing heavy pre- and post-exercise rapid-acting insulin reductions to prevent hypoglycaemia in type 1 diabetes patients: a randomised clinical trial. PLoS One. 2014 May 23;9(5):e97143. doi: 10.1371/journal.pone.0097143. eCollection 2014.
- Taplin CE, Cobry E, Messer L, McFann K, Chase HP, Fiallo-Scharer R. Preventing post-exercise nocturnal hypoglycemia in children with type 1 diabetes. J Pediatr. 2010 Nov;157(5):784-8.e1. doi: 10.1016/j.jpeds.2010.06.004. Epub 2010 Jul 21.
- Riddell MC, Bar-Or O, Ayub BV, Calvert RE, Heigenhauser GJ. Glucose ingestion matched with total carbohydrate utilization attenuates hypoglycemia during exercise in adolescents with IDDM. Int J Sport Nutr. 1999 Mar;9(1):24-34. doi: 10.1123/ijsn.9.1.24.
- Robertson K, Riddell MC, Guinhouya BC, Adolfsson P, Hanas R; International Society for Pediatric and Adolescent Diabetes. ISPAD Clinical Practice Consensus Guidelines 2014. Exercise in children and adolescents with diabetes. Pediatr Diabetes. 2014 Sep;15 Suppl 20:203-23. doi: 10.1111/pedi.12176. No abstract available.
- Camacho RC, Galassetti P, Davis SN, Wasserman DH. Glucoregulation during and after exercise in health and insulin-dependent diabetes. Exerc Sport Sci Rev. 2005 Jan;33(1):17-23.
- Oskarsson PR, Lins PE, Wallberg Henriksson H, Adamson UC. Metabolic and hormonal responses to exercise in type 1 diabetic patients during continuous subcutaneous, as compared to continuous intraperitoneal, insulin infusion. Diabetes Metab. 1999 Dec;25(6):491-7.
- Haymond MW, Schreiner B. Mini-dose glucagon rescue for hypoglycemia in children with type 1 diabetes. Diabetes Care. 2001 Apr;24(4):643-5. doi: 10.2337/diacare.24.4.643.
- Diabetes Research in Children Network (DirecNet) Study Group; Tsalikian E, Kollman C, Tamborlane WB, Beck RW, Fiallo-Scharer R, Fox L, Janz KF, Ruedy KJ, Wilson D, Xing D, Weinzimer SA. Prevention of hypoglycemia during exercise in children with type 1 diabetes by suspending basal insulin. Diabetes Care. 2006 Oct;29(10):2200-4. doi: 10.2337/dc06-0495.
- Rickels MR, DuBose SN, Toschi E, Beck RW, Verdejo AS, Wolpert H, Cummins MJ, Newswanger B, Riddell MC; T1D Exchange Mini-Dose Glucagon Exercise Study Group. Mini-Dose Glucagon as a Novel Approach to Prevent Exercise-Induced Hypoglycemia in Type 1 Diabetes. Diabetes Care. 2018 Sep;41(9):1909-1916. doi: 10.2337/dc18-0051. Epub 2018 May 18.
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Completed
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16
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Same as current
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February 15, 2017
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February 15, 2017 (Final data collection date for primary outcome measure)
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Inclusion Criteria:
- Clinical diagnosis of presumed autoimmune type 1 diabetes, receiving daily insulin
- Age 18-<65 years
- Duration of T1D ≥ 2 years
- Random C-peptide < 0.6 ng/ml
- Using continuous subcutaneous insulin infusion (CSII; insulin pump) for at least 6 months, with no plans to discontinue pump use during the study
- Exercises regularly, i.e. ≥30 minutes moderate or more vigorous aerobic activity X ≥3 times/week
- Body mass index (BMI) <30 kg/m2
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Females must meet one of the following criteria:
- Of childbearing potential and not currently pregnant or lactating, and agrees to use an accepted contraceptive regimen as described in the study procedure manual throughout the entire duration of the study; or
- Of non-childbearing potential, defined as a female who has had a hysterectomy or tubal ligation, is clinically considered infertile or is in a menopausal state (at least 1 year without menses)
- In good general health with no conditions that could influence the outcome of the trial, and in the judgment of the investigator is a good candidate for the study based on review of available medical history, physical examination and clinical laboratory evaluations
- Willing to adhere to the protocol requirements for the duration of the study
- Must be enrolled in the T1D Exchange clinic registry or willing to join the registry
Exclusion Criteria:
- One or more severe hypoglycemic episodes in the past 12 months (as defined by an episode that required third party assistance for treatment)
- Active diabetic retinopathy (proliferative diabetic retinopathy or vitreous hemorrhage in past 6 months) that could potentially be worsened by exercise protocol
- Peripheral neuropathy with insensate feet
- Cardiovascular autonomic neuropathy with inappropriate heart rate response to exercise
- Use of non-insulin anti-diabetic medications
- Use of beta-blockers
- Use of agents that affect hepatic glucose production such as beta adrenergic agonists, xanthine derivatives
- Use of Pramlintide
- Currently following a very low calorie or other weight-loss diet
- Participation in other studies involving administration of an investigational drug or device within 30 days or 5 half-lives, whichever is longer, before screening for the current study or planning to participate in another such study during participation in the current study
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Sexes Eligible for Study: |
All |
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18 Years to 64 Years (Adult)
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No
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Contact information is only displayed when the study is recruiting subjects
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United States
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NCT02660242
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T1DX Mini-dose Exercise
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No
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Not Provided
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Not Provided
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Jaeb Center for Health Research
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T1D Exchange Clinic Network Coordinating Center
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Jaeb Center for Health Research
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T1D Exchange Clinic Network Coordinating Center
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Xeris Pharmaceuticals
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Study Chair: |
Michael Riddell, PhD |
York University |
Study Chair: |
Michael Rickels, M.D., M.S. |
University of Pennsylvania |
Study Chair: |
Howard Wolpert, M.D. |
Joslin Diabetes Center |
Principal Investigator: |
Stephanie DuBose, M.P.H |
Jaeb Center for Health Research |
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Jaeb Center for Health Research
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February 2020
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