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LIRAGLUTIDE (IN ADDITION TO INSULIN) IN OVERWEIGHT PATIENTS WITH TYPE1 DIABETES BY NEHA LALANI MBBS MENTORS: DR.NITESH KUHADIYA MD,MPH DR.PARESH DANDONA MD,PHD

LIRAGLUTIDE (IN ADDITION TO INSULIN) IN OVERWEIGHT … · 2017-12-28 · CBC, CMP, lipid profile, hemoglobin A1C and fructosamine; 24 hour BP monitor given. Week 16 and 20: Insulin

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Page 1: LIRAGLUTIDE (IN ADDITION TO INSULIN) IN OVERWEIGHT … · 2017-12-28 · CBC, CMP, lipid profile, hemoglobin A1C and fructosamine; 24 hour BP monitor given. Week 16 and 20: Insulin

LIRAGLUTIDE (IN ADDITION TO INSULIN) IN OVERWEIGHT PATIENTS WITH TYPE‐1 DIABETES

BY NEHA LALANI MBBS

MENTORS: DR.NITESH KUHADIYA MD,MPHDR.PARESH DANDONA MD,PHD

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BackgroundWhy is it difficult to control glycemic variations in type‐1 

diabetes? Autoimmune destruction of B‐cells  near total loss of endogenous insulin production  cannot compensate for changing requirements(1) Insulin boluses  not precise doses or bioavailability(2) Lack of endogenous insulin  absence of post‐prandial glucagon inhibition  hyperglucagonemia glycemic variability and unpredictability not totally corrected with extrinsic insulin(3) Insulin (anabolic hormone)  40‐50% type‐1 diabetic have metabolic syndrome  cardiovascular mortality(4) 

1.Pickup JC, Renard E: Long‐acting insulin analogs versus insulin pump therapy for the treatment of type 1 and type 2 diabetes. Diabetes Care 31 Suppl 2:S140‐145, 2008

2.Bolli GB, Kerr D, Thomas R, Torlone E, Sola‐Gazagnes A, Vitacolonna E, Selam JL, Home PD: Comparison of a multiple daily insulin injection regimen (basal once‐daily glargine plus mealtime lispro) and continuous subcutaneous insulin infusion (lispro) in type 1 diabetes: a randomized open parallel multicenter study. Diabetes Care 32:1170‐1176, 2009

3.Unger RH, Orci L: Paracrinology of islets and the paracrinopathy of diabetes. Proc Natl Acad Sci U S A 107:16009‐16012, 2010

4.Wajchenberg BL, Feitosa AC, Rassi N, Lerario AC, Betti RT: Glycemia and cardiovascular disease in type 1 diabetes mellitus. Endocr Pract 14:912‐923, 2008

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Contd…

What are GLP‐1 agonists and how do they work?

Glucagon like peptide‐1 agonists Approved for treatment in type‐2 diabetes Gut: Delay gastric emptying ↓ appetite Pancreas: Stimulates insulin release when glucose is released from gut and inhibits glucagon release Liver: Reduces glucose production as glucagon secretion from pancreas is reduced Examples: Exenatide (BID and Q weekly) and Liraglutide (Q daily)

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Contd…Previous studies with GLP‐1 in type‐1 diabetes

Varanasi A et al: GLP‐1 analogue in 13 patients with type 1 diabetes led to a remarkable reduction in the excursions of blood glucose, both highs and lows, following meals and through the 24 hours within the first 2 days of treatment in all 13 subjects. Kuhadiya et al: Retrospective study showed  that addition of liraglutide to insulin in obese patients with type 1 diabetes mellitus leads to improvements in glycemic control and HbA1c and to reductions in insulin dose, systolic blood pressure, and body weight. Kielgast U et al: GLP‐1 infusion suppresses basal and arginine induced glucagon secretion in subjects with type 1 diabetes.  Rother Kl et al: GLP‐1 infusion also completely prevents  the rise in post‐prandial glucose or glucagon concentrations in these patients.  Ghanim H et al: (The importance of glucagon in inducing hyperglycemia is further strengthened by the observation that) glucagon receptor knockout mice do not develop diabetes inspite of complete B‐cell destruction by streptozotocin.

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Contd…

Based on these studies it was clear that in addition to insulin replacement, glucagon suppression is an important part of treating type 1 diabetes. We decided to further investigate the effect of liraglutide in type‐1 diabetics. This will be the first study to attempt to reduce body weight and other features of the metabolic syndrome, while improving glycemic control with addition of a single therapeutic agent in overweight and obese patients with type 1 diabetes. 

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Trial objectives and purposeHypothesis 1: Treatment with Liraglutide in overweight or obese patients with type 1 diabetes decreases fasting, postprandial and the overall mean glucose concentrations while decreasing the dose of insulin required.

Hypothesis 2: Treatment with liraglutide reduces abdominal adiposity, hepatic and visceral fat mass and improves features of metabolic syndrome.

Hypothesis 3: Treatment with Liraglutide in obese patients with type 1 diabetes improves blood pressure.

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Research design and methods

Prospective, randomized, double blinded, placebo controlled study in overweight type‐1 diabetics Setting: Diabetes‐Endocrinology Center of WNY, affiliated to the State University of New York UB‐IRB approved

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Inclusion criteria1) Type 1 Diabetes on continuous subcutaneous insulin 

infusion (CSII; also known as insulin pump) or multiple (four or more) injections of insulin per day

2) Using a continuous glucose monitoring device (CGM) or regularly measuring their blood sugars four times daily 

3) HbA1c of less than 8.5% 4) Well versed with carbohydrate counting 5) Age 18‐75 years 6) BMI≥ 25kg/m2 7) Age at diagnosis of type 1 diabetes should be <30 years.8) evidence of auto‐immunity to beta cells (GAD‐65 and islet 

cell antibody screen) 

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Exclusion criteria1) Type 1 diabetes for less than 6 months 2) Coronary event or procedure (myocardial infarction, unstable angina, coronary artery bypass, surgery or coronary angioplasty) in the previous four weeks 3) Hepatic disease (transaminase > 3 times normal) or cirrhosis4) Renal impairment (serum eGFR <30ml/min/1.73m2)5) HIV or Hepatitis B or C positive status6) Participation in any other concurrent clinical trial 7) Any other life‐threatening, non‐cardiac disease 8) Use of an investigational agent or therapeutic regimen within 30 days of study9) History of pancreatitis 10) Pregnancy 

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Exclusion criteria contd…11) Inability to give informed consent 12) History of gastroparesis 13) History of medullary thyroid carcinoma or MEN 2 syndrome14) Smokers will be advised not to change their amount of smoking for the duration of the study15) Use of any agent other than insulin for treatment of diabetes (metformin, pramlintide or thiazolidinediones)16) Painful gallstones17) Alcoholism18) Hypertriglyceridemia (>500 mg/dl) 

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Study Description Screening day: History and physical, informed consent, baseline fasting CBC, CMP, lipid panel, c‐peptide, GAD‐65 antibody (with reflex to islet‐cell antibody), HbA1c, fructosamine. Day ‐14: Visit with registered dietician (carbohydrate counting) and diabetic educator (injection technique); continuous glucose monitor for 2 weeks; baseline DEXA and MRI script given. Day 0: CGM data collected, 24 hour BP monitor given. Day 1: Study drug dispensed and started at 0.6mg sc QD;                 If HbA1C < 7 – basal and prandial insulin dose reduced by 25%;             If HbA1C >7.5 – continue same insulin dose;                   If HbA1C 7‐7.5 – insulin dose reduced by 10%

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Week 1 and week 2: Insulin pump download/ food logs reviewed; insulin adjustment made for target of pre‐prandial 80‐120 mg/dl, 2 hr post‐prandial <140 mg/dl and avoid BG < 70; dose increased to 1.2 mg at week 1 and 1.8 mg at week 2 if tolerated.Week 4 and 8: insulin dose adjusted and drug titrated up to maximum 1.8 mg Week 12: Insulin dose adjusted; fasting blood collected for CBC, CMP, lipid profile, hemoglobin A1C and fructosamine; 24 hour BP monitor given.Week 16 and 20: Insulin dose adjustment.Week 24: insulin dose adjustment, DEXA MRI scripts given and CGM insertedWeek 26: CGM data collected, fasting blood sample collected and 24 hour BP monitor given.

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Study discontinuation criteria

Unable to tolerate drug because of severe nausea/vomiting Pancreatitis Thyroid tumour

Fortunately, we didn’t have any of the above.

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Primary end point Change in HbA1c

Secondary end points Change in average daily glucose, average fasting glucose, glycemic variability (continuous glucose monitor data) and fructosamine Insulin doses Subcutaneous fat mass distribution (DEXA), hepatic fat fraction and visceral fat mass (MRI) 24 hour blood pressure

Sample size So far 35 patients have completed the study: 18 in placebo group and 17 in drug group Randomization number was assigned using Microsoft Excel

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Baseline CharacteristicsBaseline Characteristics

ParametersPlacebo(n=18)

Drug(n=17)

p‐value

Mean Age (years) 42±3.44 46±3.73 0.51

Mean Age at TID diagnosis (years) 15.59±2.36 18.85±2.95 0.34

Gender (M/F) 8/10 8/9 0.87

Weight (lb) 192.08±8.99 200.06±6.77 0.42

BMI 30.69±1.34 30.41±0.81 0.95

C‐peptide (ng/ml) <0.01 <0.01 NA

GAD‐65 antibody positive (Y/N) 8/10 6/11 0.58

Arm fat (g) 3680±341 3628±261 0.90

Leg fat (g) 11640±1355 12322±1172 0.70

Trunk fat (g) 18394±1735 21309±1796 0.25

Total fat (g) 36625±3300 38231±2884 0.42

Arm lean (g) 5728±354 6331±472 0.31

Leg lean (g) 15836±713 16533±804 0.52

Total lean (g) 50341±2262 53100±2226 0.39

Total BMC (g) 2879±93 3209±119 0.036

Total BMD (g/cm2) 1.202±0.012 1.258±0.022 0.04

Visceral adipose tissue (L) 2.73±0 2.86±0 0.80

Hepatic fat fraction (%) 1.40±0 1.67±0 0.30

24 hour mean SBP (mm of Hg)24 hour mean DBP (mm of Hg)24 hour mean pulse (mm of Hg)24 hour mean MAP (mm of Hg)

24 hour SBP > 140 (%)24 hour DBP > 90 (%)

120.3±1.171.9±1.277±3.287±0.98.9±1.63.9±0.8

132.5±377.9±1.476.3±2.296.4±234.3±5.715.6±2.9

0.0010.0080.86

0.00040.00050.0013

Hemoglobin A1C (%)(mmol/mol)

7.7±0.2 7.95±0.2 0.32

Frucosamine (umol/L) 307±10 315±8 0.54

Total insulin dose (units)Basal insulin dose (units)Bolus insulin dose (units)

57.81±6.133.44±3.38624.37±3.87

66.09±6.338.68±3.3430.53±2.726

0.350.280.26

Total insulin dose (units/Kg)Basal insulin dose (units/Kg)Bolus insulin dose (units/Kg)

0.64±0.050.38±0.030.26±0.03

0.69±0.060.41±0.040.32±0.04

0.50.530.20

Average daily carbohydrate intake (g)Average daily carbohydrate helpings (meals/day)

151.94±22.83.78±0.35

137.1±15.23.115±0.3

0.590.15

Average daily glucose (mg/dl)Average fasting glucose (mg/dl)

% time spent <55% time spent 55‐70%time spent 70‐160%time spent 160‐240%time spent >240

174±8161±103±14±137±231±219±2

181±5174±83±13±043±333±125±2

0.480.330.880.130.100.420.08

No statistically significant difference in the following baseline characteristics:

AgeMean age at Type‐1 diabetes diagnosisGenderWeight/ BMIC‐peptide antibody GAD‐65 antibody positivityBody fat distributionVisceral adipose tissueHepatic fat fractionHemoglobin A1CFructosamineInsulin dose (Total, basal and bolus)Carbohydrate intake and number of helpingsDaily average glycemic variability

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Change in Weight, BMI, HbA1C and Fructosamine

ParametersChange over 12 

weeksChange over 26 weeks

Change from 12 to 26 weeks

Groups Placebo Drug P Placebo Drug p Placebo Drug p

Weight (lb) ‐1.11±2.1 ‐9.35±1.5 0.003 +0.02±1.9 ‐10.25±1.8 0.0004 +1.13±1.2 ‐0.91±1.2 0.28

BMI ‐0.24±0.3 ‐1.48±0.3 0.006 +0.02±0.3 ‐1.62±0.3 0.0006 +0.26±0.2 ‐0.13±0.2 0.2

Hemoglobin A1C (%)(mmol/mol)

+0.1±0.1 ‐0.38±0.1 0.01 +0.2±0.2 ‐0.29±0.2 0.1 +0.1±0.1 +0.09±0.1 0.88

Fructosamine (umol/L) +14±9 +6.24±7 0.5 +2±11 +7±11 0.76 ‐12±7 +0.76±10 0.32

Weight and BMI: Significant difference in weight reduction in placebo vs drug group in first 12 weeks, over 26 weeks. However, the effect seems to have stabilized between 12 to 26 weeks.

Hemoglobin A1C: Increased in placebo group while decreased in drug group in first 12 weeks, statistically significant. Effect plateaued and no difference from 12 to 26 weeks and overall in 26 weeks.

Fructosamine: No significant difference in change in fructosaminebetween two groups.

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Change in Weight, BMI, HbA1C and Fructosamine

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Change in body fat distribution

ParametersChange over 12 

weeksChange over 26 weeks

Change from 12 to 26 weeks

Groups Placebo Drug p Placebo Drug p Placebo Drug p

Arm fat (g) NA NA NA ‐37±28 ‐231±146 0.32 NA NA NA

Leg fat (g) NA NA NA ‐91±206 ‐629±389 0.23 NA NA NA

Trunk fat (g) NA NA NA ‐9±534 ‐2371±748 0.014 NA NA NA

Total fat (g) NA NA NA ‐128±756 ‐3263±705 0.005 NA NA NA

Arm lean (g) NA NA NA +44±87 ‐28±104 0.59 NA NA NA

Leg lean (g) NA NA NA +6±206 ‐356±227 0.24 NA NA NA

Total lean (g) NA NA NA ‐13±455 ‐963±279 0.08 NA NA NA

Total BMC (g) NA NA NA +11±24 +61±117 0.67 NA NA NA

Total BMD (g/cm2) NA NA NA 0±0 0±0 0.5 NA NA NA

Visceral adipose tissue (L)

NA NA NA +0.15±0.26 ‐0.29±0.14 0.15 NA NA NA

Hepatic fat fraction (%)

NA NA NA +0.54±0.17 +0.14±0.18 0.12 NA NA NA

Significant difference between placebo and drug group in reduction in total fat and trunk fat over 26 weeks.

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Change in body fat distribution

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Change in 24 hour blood pressure parameters

ParametersChange over 12 

weeksChange over 26 

weeksChange from 12 to 26 

weeksGroups Placebo Drug p Placebo Drug p Placebo Drug p

24 hour mean SBP (mm Hg) +9.8±3.4 ‐6.1±3.9 0.01 +9.2±2.6 ‐1.7±3 0.02 ‐0.6±2.4 +4.4±3.3 0.23

24 hour mean DBP (mm Hg) +0.9±1.1 ‐0.7±1.4 0.43 +2.5±1.2 ‐0.6±1.6 0.13 +1.6±1 +0.1±1.2 0.41

24 hour mean pulse (mm Hg) ‐0.8±2.9 +4±2.1 0.18 ‐2.2±2.2 +1.9±2.8 0.33 ‐1.5±2.2 ‐2.1±1.7 0.9

24 hour mean MAP (mm Hg) +4.5±2.2 ‐2.3±2.3 0.06 +5.8±2 ‐1.4±2.2 0.03 +1.31±1.35 +0.91±2 0.87

24 hour SBP > 140 (%) +18.5±6.4‐6.02±7.41 0.03 +20.4±5.9 ‐1.46±5.24 0.013 +1.87±6.28 +4.56±4.69 0.72

24 hour DBP > 90 (%) +0.86±1.3 ‐3.17±2.45 0.16+2.73±1.2

5‐3.51±3.18 0.08 +1.88±1.64 ‐0.34±2.29 0.43

24 hour mean SBP and % time > 140 mm Hg: Increased in Placebo group and decreased in drug group over 12 and 26 weeks with statistically significant difference. 

24 hour mean DBP and % time >90 mm Hg: Decrease in drug group and increase in placebo group over 12 and 26 weeks, but not statistically significant difference.

Mean Arterial pressure: Significant reduction in drug group over 26 weeks.

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Change in 24 hour blood pressure parameters

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Change in insulin requirementParameters Change over 12 weeks Change over 26 weeks Change from 12 to 26 weeks

Groups Placebo Drug p Placebo Drug p Placebo Drug p

Total insulin dose (units)

‐7.27±4.6 ‐8.65±3.7 0.81 ‐3.75±3.5 ‐3.69±3.6 0.99 +3.53±5.76 +4.96±2.49 0.82

Total insulin dose (units/Kg)

‐0.06±0.04 ‐0.06±0.04 0.9 ‐3.75±3.5 ‐3.7±3.6 0.9 +0.02±0.05 +0.06±0.03 0.53

Basal insulin dose (units)

‐2.61±1.8 +3.6±2.29 0.74 ‐1.31±2.8 +0.34±1.37 0.6 +1.3±3.34 +3.94±1.8 0.49

Basal insulin dose (units/Kg)

‐0.03±0.02 ‐0.02±0.02 0.9 ‐1.3±2.8 +0.34±1.4 0.6 +0.01±0.03 +0.04±0.02 0.3

Bolus insulin dose (units)

‐5.44±3.53 ‐8.15±2.17 0.52 ‐1.92±1.97 ‐7.1±2.73 0.13 +3.53±2.7 +1.05±1.9 0.46

Bolus insulin dose (units/Kg)

‐0.05±0.03 ‐0.07±0.02 0.5 ‐1.9±1.9 ‐7.1±2.7 0.13 +0.03±0.02 +0.01±0.02 0.55

No significant difference in change in total, basal or bolus insulin dose requirement in drug or placebo groups.

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Change in carbohydrate intake and Glycemic indicesParameters Change over 12 weeks Change over 26 weeks Change from 12 to 26 weeks

Groups Placebo Drug p Placebo Drug p Placebo Drug pAverage daily 

carbohydrate intake (g)‐15±19.7 +5.83±13.18 0.38 ‐9.38±14.54 +0.45±15.5 0.64 +5.65±14.5 ‐5.38±12.8 0.57

Average daily carbohydrate helpings 

(meals/day)‐0.01±0.18 ‐0.12±0.22 0.69 ‐0.448±0.3 ‐0.16±0.23 0.45 ‐0.44±0.3 ‐0.035±0.16 0.25

Average daily glucose (mg/dl)

NA NA NA +1±8 ‐4±9 0.67 NA NA NA

Average fasting glucose (mg/dl)

NA NA NA +3±8 ‐15±13 0.24 NA NA NA

% time spent <55 NA NA NA +3±1 ‐1±1 0.12 NA NA NA% time spent 55‐70 NA NA NA +5±2 ‐2±0 0.10 NA NA NA%time spent 70‐160 NA NA NA ‐1±2 ‐1±3 0.95 NA NA NA%time spent 160‐240 NA NA NA ‐6±3 ‐4±2 0.61 NA NA NA

%time spent >240 NA NA NA ‐1±2 0±4 0.76 NA NA NA

Carbohydrate intake and helpings: Increased in drug group over 12 weeks and 26 weeks while decreased in placebo group, but not significant change.

Glycemic Indices: Decrease in average daily glucose, average fasting glucose and time spent in hypoglycemia in drug group while these parameters increased in placebo group. No significant difference in this change. 

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Conclusion Encouraging results with regard to HbA1c, weight/BMI, body fat distribution and blood pressure.We plan to recruit more patients in this study to increase the power.If this drug is shown to be consistently effective, it will provide a major advance in the treatment of hyperglycemia and unpredictable alterations in glucose concentrations in type 1 diabetes, a disease that is newly diagnosed in 15000 children per year in the US and currently affects 3 million Americans.

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Acknowledgement

Dr. Nitesh Kuhadiya Dr. Paresh Dandona Dr. Henri Woodman

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Thank you!