ACCREDITATION STATEMENT Current Strategies for Postprandial

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ACCREDITATION STATEMENT Current Strategies for Postprandial Glucose Control Jennifer Trujillo, PharmD, BCPS, CDE, BC-ADM University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences University of Colorado Health Endocrinology, Metabolism & Diabetes Clinic Postgraduate Healthcare Education, LLC, is accredited by the Accreditation Council for Pharmacy Education (ACPE) as a provider of continuing pharmacy education. UAN: 0430-0000-16-010-L01-P Credits: 1.0 hour (0.10 ceu) TYPE OF ACTIVITY: Knowledge This activity is sponsored by Postgraduate Healthcare Education, LLC (PHE) and supported by an educational grant from Sanofi US DISCLAIMER The opinions expressed in the educational activity are those of the faculty and do not necessarily represent the views of Postgraduate Healthcare Education, LLC and Sanofi US. All participants in this continuing education activity should properly evaluate all of the information and opinions presented prior to integrating any part of this activity into their clinical practice. No decisions regarding medical care or treatment should be made solely on the basis of information provided during this live presentation. Disclosure Speaker Jennifer Trujillo, PharmD, BCPS, CDE, BC-ADM, has indicated the following relevant affiliation or financial relationship with a commercial interest: consultant for Sanofi US. Program Chair Dhiren K. Patel, PharmD, CDE, BC-ADM, BCACP, states the following relevant affiliations or financial relationships with a commercial interest related to the content of this activity: consultant for AstraZeneca; Advisory Board for AstraZeneca, Novo Nordisk and Sanofi US; member of the speaker's bureau for Merck, Novo Nordisk and Sanofi US. Reviewer Michael Gabay, PharmD, JD, BCPS declares no conflicts of interest, real or apparent, and no financial interests in any company, product, or service mentioned in this program. 1

Percent (%) 5/5/2016 Objectives Describe the pathophysiology of diabetes. Describe the use of both fasting and post-prandial glucose levels to assess glucose control. Explain the risks of uncontrolled post-prandial hyperglycemia. Identify medications that can be used to decrease postprandial glucose levels per the ADA guidelines. Discuss basic characteristics of currently available postprandial medications including mechanism of action, administration, common adverse effects, advantages, and disadvantages. Design an evidence-based medication regimen for a patient with post-prandial hyperglycemia. The Scope of Diabetes In 2014, 29.1 million American adults had diabetes 90-95% have type 2 diabetes 5% have type 1 diabetes Increases risk of heart disease, stroke, retinopathy, kidney failure, amputation All patients with type 1 diabetes need insulin, but treatment of type 2 diabetes varies 14.7 Treatment of Diabetes Among US Adults (%) 14 No Medication Orals + Insulin 14.4 56.9 Oral Agents Only Insulin Only CDC. http://www.cdc.gov/diabetes/pubs/statsreport14/national-diabetes-report-web.pdf. Accessed February 23, 2015. 60 50 40 30 20 10 Trends in Glycemic Control: NHANES 2010 A1C < 7% Clinical Inertia in Type 2 Diabetes Retrospective cohort study of 81,573 people with type 2 diabetes Median time to intensification with insulin was > 6 years for patients on 2 or 3 OADs with A1C 7.5% 2 OADs with A1C 7.5% = 7.2 years 2 OADs with A1C 8%= 6.9 years 3 OADs with A1C 7.5% = 6.1 years 3 OADs with A1C 8% = 6.0 years 0 1988-1994 1999-2002 2003-2006 2007-2010 Adapted from Stark-Casagrande S, et al. Diabetes Care. 2013;36:2271-2279. Khunti K, et al. Diabetes Care. 2013;36:3411-3417. OAD=oral antidiabetes drug. 2

Treatment Options T2DM Treatment Options T2DM Medications Approved before 2000 Exogenous insulin (human and analogs) Sulfonylureas Biguanides (metformin) Alpha-glucosidase inhibitors (AGIs) Meglitinides Thiazolidinediones (TZDs) Medications Approved since 2005! Amylin analogues (pramlintide) Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) Dipeptidyl peptidase-4 inhibitors (DPP-4 inhibitors) Bile acid sequestrant (colesevelam) Dopamine agonist (bromocriptine) Sodium-glucose cotransporter-2 inhibitors (SGLT-2 inhibitors) Stein SA, et al. Expert Opin Drug Saf. 2013; Fowler MJ. Clin Diabetes. 2010. Stein SA, et al. Expert Opin Drug Saf. 2013; Fowler MJ. Clin Diabetes. 2010. Pathophysiology of Type 2 Diabetes Natural History of T2D: ß-cell function Insulin Secretion sulfonylureas HYPERGLYCEMIA Hepatic Glucose Output Insulin Resistance metformin thiazolidinediones Holman RR. Diabetes Res Clin Pract. 1998;40:S21-25. 3

First Phase Insulin Response Pathophysiology of T2D Gerich JE. Horm Metab Res. 1996;28(9):404-412. Schwartz SS, et al. Diabetes Care 2016;39:179-186. Post-prandial Glucose in T2D Glucose levels after eating Depend on a variety of factors Carbohydrate absorption Insulin and glucagon secretion Glucose metabolism Timing, quantity, and composition of meal Often overlooked in the management of T2D Strong association between elevated PPG and cardiovascular outcomes, cardiovascular mortality, and microvascular complications PPG may be a better predictor of poor diabetes-related outcomes than FPG Relative Contribution to Hyperglycemia American Diabetes Association. Diabetes Care. 2001;24(4):775-778. Tibaldi J. South Med J. 2009;102(1):60-66. IDF. http://www.idf.org/sites/default/files/postmeal%20glucose%20guidelines.pdf. Accessed April 15, 2015. Monnier L, et al. Diabetes Care 2003;26:881-5. 4

Goals for Glycemic Control ADA Management of Hyperglycemia in Type 2 Diabetes Guideline A1C FPG (mg/dl) PPG (mg/dl) ADA < 7% 80-130 < 180 1-2 hrs after meal AACE < 6.5% < 110 < 140 2 hrs after meal ADA. Diabetes Care. 2016;39(Suppl.1):S1-S112. Handelsman Y, et al. Endocrine Practice. 2016;21(Suppl.1):1-87. American Diabetes Association. Diabetes Care 2015;38:1140-149. Pathophysiologic Approach to Treating T2D Targeting Post-prandial Glucose in T2D American Diabetes Association (ADA) Treatment approach based on patient and treatment-specific factors PPG testing recommended for patients who have pre-meal glucose values within target but have A1C values above target If basal insulin has been titrated to acceptable fasting glucose levels, consider advancing to combination therapy to cover PPG American Association of Clinical Endocrinologists (AACE) Treatment based on metabolic effects of treatments and patient-specific factors PPG testing recommended in addition to FPG; no distinction or prioritization made Schwartz SS, et al. Diabetes Care 2016;39:179-186. ADA. Diabetes Care. 2016;39(Suppl.1):S1-S112. Handelsman Y, et al. Endocrine Practice. 2016;21(Suppl.1):1-87. 5

Dietary Considerations Quantity and type of carbohydrate influences PPG Replace refined carbs and added sugars with whole grains, legumes, vegetables, and fruits Avoid sugar-sweetened and low-fat or non-fat products with high amounts of added sugars Intensive insulin regimens: match insulin administration with carb intake Targeting the Glucose Profile Targets Fasting Glucose Targets Post-Prandial Glucose Targets both Handelsman Y et al. Endocr Pract 2015;21(Suppl 1):1-87. Metformin Basal insulin TZDs Meglitinides Alpha-glucosidase inhibitors GLP-1 agonists (short acting) Prandial insulin DPP-4 inhibitors Sulfonylureas SGLT-2 inhibitors GLP-1 agonists (long acting) Meglitinides Repaglinide (Prandin ), nateglinide (Starlix ) Increase insulin secretion Faster onset and shorter duration than SUs Advantages Dosing flexibility Disadvantages Hypoglycemia Weight gain Frequent dosing schedule Cost Moderate American Diabetes Association. Diabetes Care. 2016;39(1):S55-56. Garber AJ. Endocr Pract 2016;22(1):84-113. Alpha-glucosidase inhibitors (AGIs) Acarbose (Precose ), miglitol (Glyset ) Slows intestinal carbohydrate ingestion/absorption Advantages Low hypoglycemia risk Non-systemic No weight gain Disadvantages Modest A1C effect GI side effects Frequent dosing schedule Cost Moderate American Diabetes Association. Diabetes Care. 2016;39(1):S55-56. Garber AJ. Endocr Pract 2016;22(1):84-113. 6

GLP-1 RAs: Actions on Target Tissues GLP-1 Receptor Agonists Food Gut GLP-1 t 1/2 =1 2 min Inactive GLP-1 DPP-4 Pancreas Stomach Brain Glucose-dependent insulin secretion Glucose-dependent glucagon secretion Gastric emptying Satiety Glucose Weight Exenatide (Byetta, Bydureon ), liraglutide (Victoza ), albiglutide (Tanzeum ), dulaglutide (Trulicity ) Increases glucose-dependent insulin secretion, decreases inappropriate glucagon secretion, slows gastric emptying, increases satiety Advantages Low hypoglycemia risk Reduces weight Disadvantages GI side effects Injectable Cost High American Diabetes Association. Diabetes Care. 2016;39(1):S55-56. Garber AJ. Endocr Pract 2016;22(1):84-113. ADA Management of Hyperglycemia in Type 2 Diabetes GLP-1 RAs: Comparisons Short-Acting GLP-1 RAs Long-Acting GLP-1 RAs Generic (Brand) Name Exenatide (Byetta) Lixisenatide (Lyxumia) Liraglutide (Victoza) Exenatide XR (Bydureon) Albiglutide (Tanzeum) Dulaglutide (Trulicity) FDA approval 2005 Pending 2010 2012 2014 2014 Glucose profile target PPG PPG FPG/PPG FPG/PPG FPG/PPG FPG/PPG Dose 5-10 mcg 10-20 mcg 0.6-1.8 mg 2 mg 30-50 mg 0.75-1.5 mg Admin Twice daily Once daily Once daily Once weekly Once weekly Once weekly Delivery Renal dosing Multi-use pen <30 not rec; 30 50 use caution Multi-use pen None Multi-use pen None Single-use pen* <30 not rec; 30 50 use caution Single-use pen* None Single-use pen None American Diabetes Association. Diabetes Care 2015;38:1140-149. *Requires reconstitution 7

Comparison of Phase 3 Studies GLP-1 RAs + Basal Insulin Phase 3 Clinical Trials Back-ground Therapy A1C lowering (%)* Exenatide (Byetta ) Lixisenatide (Lyxumia ) Liraglutide (Victoza ) Exenatide XR (Bydureon ) Albiglutide (Tanzeum ) Dulaglutide (Trulicity ) AMIGO GetGoal LEAD DURATION HARMONY AWARD Drug naïve Metformin SU Drug naïve, metformin, SU, TZD, Basal insulin Drug naïve, metformin, SU, TZD Drug naïve, metformin, SU, TZD Drug naïve, metformin, SU, TZD, basal insulin Drug naïve metformin, SU, TZD, bolus insulin -0.4 to -1.36-0.7 to -1.0-0.6 to -1.48-1.3 to -1.9-0.55 to -0.90-0.62 to -1.51 GLP-1 Agonists Fasting and postprandial glycemic control Weight reduction Low hypoglycemic risk GI adverse effects Basal Insulin Fasting glycemic control Individualized dosing Hypoglycemic risk Weight gain Weight lowering -0.9 to -3.1-0.2 to -2.96-0.6 to -6.7-2.0 to -3.7 +0.28 to -1.21 +0.2 to -3.03 *Includes all doses studied GLP-1 RAs + Basal Insulin GLP-1 RAs vs. Bolus Insulin Meta-analysis: 15 studies included GLP-1 RA + basal insulin vs. other treatments Variety of background therapies and active comparators Results Improved mean reduction in A1C of -0.44% (95% CI, -0.60 to -0.29) No increased relative risk of hypoglycemia (HR 0.99; 95% CI, 0.76 1.29) Mean reduction in weight of -3.22 kg (95% CI, -4.90 to - 1.54) Clinical Trial (Duration) Diamant (30 weeks) Rosenstock (26 weeks) Mathieu (28 weeks) Roy-Duval (26 weeks) Background Therapy Glargine + metformin Glargine ± metformin, pioglitazone, or both Degludec + metformin Glargine ± metformin #Met noninferiority criteria. *p<0.05. Comparator Arms Change in Change in A1C (%) weight (kg) Exenatide -1.13 # -2.5* Lispro with each meal -1.10 +2.1 Albiglutide -0.82 # -0.73* Lispro with each meal -0.66 +0.81 Liraglutide -0.74* -2.8* Aspart with largest meal -0.39 +0.9 Lixisenatide -1.34 # -0.7* Aspart with one meal -1.28 +0.9 Aspart with each meal -1.55 +1.3 Eng C. Lancet 2014;384:2228-34. Diamant M. Diabetes Care 2014;37:2763-73; Rosenstock J. Diabetes Care 2014;37:2317-25; Mathieu C. Diabetes Obes Metab 2014;16:636-44. Roy-Duval C. Diabetologia 2015;58(Suppl 1):S39. 8

GLP-1 RAs vs. Bolus Insulin Better patient satisfaction ADA Management of Hyperglycemia in Type 2 Diabetes More GI adverse effects Less hypoglycemia Diamant M. Diabetes Care 2014;37:2763-73; Rosenstock J. Diabetes Care 2014;37:2317-25; Mathieu C. Diabetes Obes Metab 2014;16:636-44. American Diabetes Association. Diabetes Care 2015;38:1140-149. DPP4 inhibitors: Actions on Target Tissues DPP-4 Inhibitors Food Gut GLP-1 t 1/2 =1 2 min Inactive GLP-1 DPP-4 Pancreas Stomach Brain Glucose-dependent insulin secretion Glucose-dependent glucagon secretion Gastric emptying Satiety Glucose Weight Sitagliptin (Januvia ), saxagliptin (Onglyza ), linagliptin (Tradjenta ), alogliptin (Nesina ) Increase insulin secretion, decrease glucagon secretion Advantages Low hypoglycemia risk No weight gain Well tolerated Disadvantages Modest A1C effect Concern for heart failure hospitalizations with saxagliptin, alogliptin Cost High American Diabetes Association. Diabetes Care. 2016;39(1):S55-56. Garber AJ. Endocr Pract 2016;22(1):84-113. 9

Change in A1C from baseline Liraglutide Liraglutide Exenatide QW Exenatide QW Albiglutide Albiglutide Dulaglutide 5/5/2016 DPP-4 Inhibitors: Comparisons DPP-4 Inhibitors vs. GLP-1 RAs: Efficacy sitagliptin saxagliptin linagliptin alogliptin Dose/ frequency Efficacy (A1C lowering): monotherapy Efficacy (A1C lowering): combination therapy Renal dosing 100 mg once daily 5 mg once daily 5 mg once daily 25 mg once daily 0.6% 0.7% 0.4% 0.8% 0.7% 1.2% 0.7% 0.9% 50 mg daily (moderate) 25 mg daily (severe) 2.5 mg daily (moderatesevere) **No dose adjustment necessary 12.5 mg daily (moderate) 6.25 mg daily (severe) 0-0.2-0.4-0.6-0.8-1 -1.2-1.4-1.6-1.8 Pratley -1.5-0.9 Charbonel -1.3-1.4 Bergenstal Russell-Jones Ahren (DURATION 2) (DURATION 4) (HARMONY 3) -0.3-0.6-0.9-1.15-1.5-1.53 GLP-1 DPP-4 Leiter Nauck (AWARD (HARMONY 8) 5) -0.39-0.52-0.83-1.1 Baetta R. Drugs 2011;71:1441-1467. Pratley RE, et al. Lancet. 2010; Charbonnel B, et al. Diabetologia. 2013; Bergenstal RM, et al. Lancet. 2010; Russell-Jones D, et al. Diabetes Care. 2012; Ahrén B, et al. Diabetes Care. 2014; Leiter LA, et al. Diabetes. 2013; Nauck M, et al. Diabetes Care 2014. ADA Management of Hyperglycemia in Type 2 Diabetes Renal Glucose Handling American Diabetes Association. Diabetes Care 2015;38:1140-149. Chao EC. Nat Rev Drug Discov 2010;9:551-9. 10

Plasma Insulin Levels 5/5/2016 Normal Glycosuria BG > 180 mg/dl SGLT-2 Inhibitors SGLT2-I Glycosuria BG > 80 mg/dl Canagliflozin (Invokana), dapagliflozin (Farxiga), empagliflozin (Jardiance) Inhibit glucose reabsorption Lower renal glucose threshold Increase urinary glucose excretion Do not specifically target FPG or PPG; lower glucose indiscriminately when elevated Glucose loss 80 100 g/day 320 400 kcal/day Lowers weight, lowers BP Low risk of hypoglycemia Most common AE genital mycotic infections Insulin Meal-time insulin Human regular insulin (Humulin R, Novolin R ) Rapid-acting insulin analog (insulin aspart [Novolog ], insulin lispro [Humalog ], insulin glulisine [Apidra ]) Biphasic pre-mixed insulin (several types) Inhaled insulin (Afrezza ) Advantages Nearly universal response Theoretically unlimited efficacy Disadvantages Hypoglycemia Weight gain Injectable (except for inhaled) Training requirements American Diabetes Association. Diabetes Care. 2016;39(1):S55-56. Garber AJ. Endocr Pract 2016;22(1):84-113. Approximate PK Profiles of Insulin Types Inhaled insulin Aspart, Lispro, Glulisine Regular Intermediate (NPH insulin) Long (Insulin detemir) Long (Insulin glargine; Insulin glargine equivalent) 4 6 8 10 2 14 18 22 0 12 16 20 24 Time (hours) Ultralong (U300 glargine; Insulin degludec) 26 28 30 32 34 36 PK = pharmacokinetic; NPH = neutral protamine Hagedorn. Adapted from Hirsh IB. NEJM. 2005;352:174-183. Flood TM. J Fam Pract. 2007;56(suppl 1):S1-S12. Becker RH, et al. Diabetes Care. 2014;pii:DC_140006. http://www.pdr.net/full-prescribinginformation/afrezza?druglabelid=3540. Accessed April 5, 2015. Insulin therapy in T1D Intensive insulin (MDI or insulin pump) ~ 50% basal + 50% bolus (prandial) Goal of prandial insulin therapy is to reduce PPG by trying to mimic the endogenous insulin secretion pattern Minimize the quick rise in glucose Avoid late postprandial hypoglycemia Dosing is patient specific Matching the dose of prandial insulin to estimated carb intake should be considered Tibaldi J. South Med J. 2009;102(1):60-66. 11

PD of Current SC Prandial Insulins Onset (min) Peak (min) Duration (min) Insulin Aspart 41 94-104 264 Insulin Lispro 35-46 85-198 184-313 Insulin Glulisine 31-34 98-196 218-238 Regular Human Insulin Adapted from Heinemann L, et al. J Diabetes Sci Technol. 2012;6(4):728-742. 43-61 156-193 306-415 After a mixed meal, endogenous insulin has an onset of 16-18 minutes and peaks within 30-45 minutes. Rapid-Acting Insulin Analogs vs. Regular Insulin 2010 meta-analysis of 50 studies in T1D and 30 studies in T2D RAIAs better than regular insulin at reducing A1C and nocturnal hypoglycemia in T1D Benefits not as pronounced or consistent in T2D ADA and AACE recommend RAIAs over regular insulin Better PPG control and less hypoglycemia RAIA=rapid-acting insulin analog Canadian Agency for Drugs and Technologies in Health. CADTH Technol Overv. 2010;1(1):e0110. American Diabetes Association. Diabetes Care. 2016;39(1):S55-56. Garber AJ. Endocr Pract 2016;22(1):84-113. ADA Management of Hyperglycemia in Type 2 Diabetes ADA: Starting and Adjusting Insulin in T2D # Injections 1 Basal Insulin (usually with metformin +/- other non-insulin agent) Complexity low Start: 10U/day or 0.1-0.2 U/kg/day Adjust: 10-15% or 2-4 U once-twice weekly to reach FBG target. For hypo: Determine & address cause; ê dose by 4 units or 10-20%. 2 Add 1 rapid insulin* injections before largest meal If not controlled after FBG target is reached (or if dose > 0.5 U/kg/day), treat PPG excursions with meal-time insulin. (Consider initial GLP-1-RA trial.) Change to premixed insulin* twice daily mod. Start: 4U, 0.1 U/kg, or 10% basal dose. If A1c<8%, consider ê basal by same amount. Start: Divide current basal dose into 2/3 AM, 1/3 PM or 1/2 AM, 1/2 PM. Adjust: é dose by 1-2 U or 10-15% oncetwice weekly until SMBG target reached. Adjust: é dose by 1-2 U or 10-15% oncetwice weekly until SMBG target reached. For hypo: Determine and address cause; ê corresponding dose by 2-4 U or 10-20%. For hypo: Determine and address cause; ê corresponding dose by 2-4 U or 10-20%. 3+ If not controlled, consider basalbolus. Add 2 rapid insulin* injections before meals ('basal-bolus ) If not controlled, consider basalbolus. high Start: 4U, 0.1 U/kg, or 10% basal dose/meal. If A1c<8%, consider ê basal by same amount. Adjust: é dose by 1-2 U or 10-15% once-twice weekly to achieve SMBG target. For hypo: Determine and address cause; ê corresponding dose by 2-4 U or 10-20%. American Diabetes Association. Diabetes Care 2015;38:1140-149. Flexibility more flexible Inzucchi S, et al. Diabetes Care. 2015;38:140-149. less flexible 12

Odds Ratio vs Placebo Weight (kg) 5/5/2016 Patient Education: Insulin Administration and timing Injection technique and site rotation Storage and disposal Dosing Self-monitoring of blood glucose (SMBG) Using a glucometer, timing, expected goals, interpreting & using data Hypoglycemia: prevention, detection, treatment Meta-Analysis: Weight Changes with Antihyperglycemic Agents Added to Metformin 5 4 3 2 1 0-1 -2-3 -4-5 3.41 Biphasic Insulin 2.46 TZD 2.17 SU 1.40 1.38 Glinide Basal Insulin DPP-4i 0.23 AGI -1.01 GLP-1 RA -1.66 AGI = ɑ-glucosidase inhibitor; DPP-4i = DPP-4 inhibitor; GLP-1 RA = glucagon-like peptide-1 receptor agonist; SU = sulfonylurea; TZD = thiazolidinedione; SGLT-2i = sodium glucose cotransporter 2 inhibitor. SGLT-2i -3.5 Liu S, et al. Diabetes Obes Metab. 2012;14:810-820. Hypoglycemic Risk of Antihyperglycemic Agents Added to Metformin 25 20 15 10 5 0 17.8 Biphasic Insulin Increased Risk vs Placebo 10.5 Glinide 8.9 4.8 No Increased Risk vs Placebo 1.1 0.9 0.5 0.4 SU Basal DPP-4i GLP-1 TZD Insulin RA AGI 0.6 SGLT-2i Patient Case HPI: Mr. Jenkins is a 60-year-old Caucasian male who was diagnosed with T2D 10 years ago. He is currently being treated with metformin 1000mg twice daily and insulin glargine 62 units once daily. In the past he has tried glyburide which was discontinued due to hypoglycemia and pioglitazone which was discontinued due to edema. He is adherent to his medications and is tolerating them without side effects. Liu S, et al. Diabetes Obes Metab. 2012;14:810-820. 13

Patient Case Patient Case Past Medical History: Type 2 Diabetes x 10 years Dyslipidemia x 12 years Hypertension x 12 years Depression x 5 years Home Medications: HCTZ 12.5mg once daily Insulin glargine 62 units once daily Losartan 100mg once daily Metformin 1000mg twice daily Rosuvastatin 10mg once daily Sertraline 100mg once daily Social and Family History: Divorced, lives alone Previous smoker Works full time at the airport 2 siblings and mother with diabetes Eats out often; does not enjoy cooking; eats pre-made meals at home Walks at work; no other exercise Laboratory Data: Glucose = 203 mg/dl A1C = 8.4% Na = 142 mg/dl K = 4.7 mg/dl SCr = 1.2 mg/dl egfr = 66 ml/min Total chol = 170 mg/dl LDL = 83 mg/dl HDL = 44 mg/dl TG = 172 mg/dl Vital Signs: BP = 136/84 HR = 76 bpm, regular Height = 5 11 Weight = 254 lb BMI = 35.4 kg/m 2 Glucometer Data: (30 days) FPG = 139 mg/dl (88-151) PPG = 246 mg/dl (188-320) Patient Case Questions Considerations Glucose Profile and A1C Non-drug therapy changes Basal insulin dose Past diabetes medications Contraindications/adverse effects Cost, ease of use, patient collaboration 14

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