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Getting to Goal: Strategies for Diabetes Management Amy M. Egras, Pharm.D., BCPS JFMA Grand Rounds September 1, 2010 Objectives Discuss strategies to get patients with diabetes to their A1c goal. Discuss strategies to get patients with diabetes to their BP goal. Discuss strategies to get patients with diabetes to their LDL goal. Diabetes Goals HgA1c < 7% BP goal of < 130/80 mmHg 63% of patients are NOT at goal 64.2% of patients are NOT at goal LDL goal of < 100 mg/dL 48.2% of patients are NOT at their cholesterol goal of < 200 mg/dL HMO data: 71.2% of DM patients NOT at LDL goal FHS data: 50 yo: 76.9% of patients NOT at LDL goal 60 yo: 60% of patients NOT at LDL goal JAMA. 2004;291:335-342. J Manag Care Pharm. 2007;13:652-663. Circulation. 2009;120:212-220. Cardiovascular Risks ↑ 2-3 fold risk for CVD Heart disease & stroke rates are 2-4 times higher 68% of diabetes-related deaths due to heart disease 16% of diabetes-related deaths due to stroke Circulation. 2009;120:212-220. www.cdc.gov/diabetes/pubs/estimates07.htm Goals & Prevention of CVD Glycemic control Blood pressure control Long term follow-up suggests long-term reduction in macrovascular complications Reduces risk of CVD by 33-50% LDL cholesterol control Reduce CVD complications 20-50% Diabetes Care. 2009;32:187-192. www.cdc.gov/diabetes/pubs/estimates07.htm Glycemic Control http://www.freediabetestestsupplies.com/wp-content/uploads/diabetes-treatment-medications.jpg Therapeutic Options Metformin Sulfonylureas TZDs Insulin DPP-4 inhibitors Glinides α-glucosidase inhibitors Incretin mimetics Dipeptidyl Peptidase-4 Inhibitors Agents & dosing Place in therapy Sitagliptin (Januvia®) 100 mg po daily Saxagliptin (Onglyza®) 2.5 – 5 mg po daily Add on therapy for type 2 diabetes patients ↓ A1C 0.7-1% Adverse effects: GI upset, headache, URI, peripheral edema (more common with saxagliptin), hypoglycemia (more common with saxagliptin and insulin secretagogues) Glinides: Short-Acting Insulin Secretagogues Agents & dosing Nateglinide (Starlix®) 60-120 mg with each meal Repaglinide (Prandin®) 0.5-2 mg with each meal Place in therapy: Add on therapy for postprandial glucose control ↓ A1C 0.5-1% Glinides: Short-Acting Insulin Secretagogues Adverse effects: Hypoglycemia, weight gain Comments Can be used in patients with renal insufficiency Rapidly absorbed with a short duration of action If a meal is skipped, the medication should NOT be taken Do NOT use in combination with a sulfonylureas Alpha-glucosidase Inhibitors Agents & dosing Place in therapy: Acarbose (Precose®) 25-100 mg po TID with first bite of each meal Miglitol (Glyset®) 25-200 mg po TID with first bite of each meal Add on therapy for postprandial glucose control ↓ A1C 0.5-1% Adverse effects: Hypoglycemia, flatulence, abdominal discomfort, bloating, diarrhea, ↑ LFTs (rarely) Alpha-glucosidase Inhibitors Contraindicated in: Short bowel syndrome Inflammatory bowel disease Renal impairment (SCr > 2.0) Comments Hypoglycemia must be treated with GLUCOSE, not sucrose If a meal is skipped, the medication should be skipped as well Incretin Mimetics Agent & dosing Exenatide (Byetta®) 5-10 mcg SQ BID Liraglutide (Victoza®) 1.2-1.8 mg SQ daily Place in therapy Patients who are taking: Sulfonylurea Metformin Combination of sulfonylurea & metformin ↓ A1C 0.5-1% Incretin Mimetics Adverse effects: Nausea, vomiting, diarrhea, dyspepsia, hypoglycemia, weight loss, acute pancreatitis Precautions Gastroparesis ESRD or ClCr < 30 mL/min (exenatide only) Incretin Mimetics Comments Administer within 0-60 minutes before the morning and evening meals (exenatide) Dose may be titrated Exenatide: increase to 10 mcg BID after one month of therapy Liraglutide: start with 0.6 mg for 1 week, then increase to 1.2 mg daily; if glycemic response is not optimal, may increase to 1.8 mg daily May need to decrease dose of insulin secretagogue to reduce the risk of hypoglycemia Incretin Mimetics Comments Store in refrigerator Available in prefilled syringes Patient education for pen use and medication administration Pen needles are NOT included Achieving BP Goal http://todaysseniorsnetwork.com/Blood%20Pressure%20Measurement.jpg Blood Pressure Goals Most patients will likely need at least 3 medications to get their BP to goal 2005-2006 NHANES found 64% of patients with treated HTN achieved their BP goal NCHS Data Brief. 2008 Jan;(3):1-8. Pharmacological Treatment Initial therapy should include: ACE-inhibitor, OR ARB If still not at goal, add a thiazide diuretic CrCl > 30 mL/min Synergy with ACE-I or ARB Monitor: potassium, kidney function Diabetes Care. 2010;33:Supplement 1. Other Agents ß-blockers Benefit in those with CAD or HF Monitor heart rate Calcium channel blockers Non-dihydropyridines (verapamil, diltiazem) Kidney protective effects Caution: use with ß-blockers, monitor heart rate, constipation Dihydropyridines (amlodipine, nifedipine, felodipine) ACCOMPLISH trial showed decrease in CV events Caution: peripheral edema Other Agents Clonidine Anticholinergic side effects Rebound HTN with abrupt withdrawal Use extreme caution with ß-blockers!! Aldosterone antagonists (spironolactone) Beware of hyperkalemia especially if used with an ACE-I or ARB Gynecomastia; do not use in CrCl < 30 mL/min or SCr > 2.5 mg/dL Resistant Hypertension Definition: BP remains above goal with the concurrent use of 3 antihypertensive medications of different classes Medications at optimal doses 1 medication is a diuretic Consider an evaluation for secondary hypertension Remember… Lifestyle modifications Reduce sodium intake Weight loss Increase fruits, vegetables, and low-fat dairy Avoid excessive alcohol consumption Increase physical activity Smoking cessation Combination products Achieving LDL Goal http://www.koupoukis.gr/wp-content/uploads/HLIC/calmainefoods.com//hdl-ldl.jpg Statins Pts with CVD or > 40 yo with CVD risk factors should be started on a statin that lowers LDL 30-40% regardless of baseline LDL Statin Dose (mg/day) LDL-C reduction (%) Atorvastatin 10 39 Fluvastatin 80 35 Lovastatin 40 31 Pravastatin 40 34 Rosuvastatin 5-10 39-45 Simvastatin 20-40 35-41 Diabetes Care. 2010;33:Supplement 1. Determine % LDL Reduction % reduction in LDL needed = (Current LDL- LDL goal) X 100 Current LDL % reduction in LDL needed = (191- 100) X 100 191 Patient needs a 48% decrease in LDL Potency of Statins Statin Approximate Equivalent Dose Percent Change from Baseline LDL Initial dosing Atorvastatin 10 mg Lovastatin 40 mg Pravastatin 40 mg Simvastatin 20 mg -31 to -38% For a 30-40% reduction in LDL-C Atorvastatin 20 mg Lovastatin 80 mg Rosuvastatin 5 mg Simvastatin 40 mg -45 to -48% For a 45-50% reduction in LDL-C Atorvastatin 40 mg Rosuvastatin 10 mg Simvastatin 80 mg -46 to -48% For a 50% reduction in LDL-C Atorvastatin 80 mg Rosuvastatin 20 mg -51 to -52% For > 50% reduction in LDL-C (but will likely need to add additional therapy) NOTE: Ratio of simvastatin to atorvastatin is 2:1; ratio of atorvastatin to rosuvastatin is 4:1; ratio of simvastatin to rosuvastatin is 8:1 Am J Cardiol. 1998;81(5):582-7. Am J Cardiol. 2003;92(2):152-60. Adjusting Doses Recheck FLP in 6 weeks Not at goal? Double the dose: produces an additional 6% ↓ in LDL from baseline or an additional 10 mg/dL LDL drop Switch to a more potent statin Add another agent Other Agents to Consider Bile acid sequestrants Ezetimibe Fibrate Niacin Statin + BAS Products Cholestyramine (Questran®) Colestipol (Colestid®) Colesevelam (WelChol®) Studies have shown an additional 7-20% reduction in LDL J Fam Pract. 2006;55:70-2. Statin + BAS For BAS: Contraindications: GI obstruction, dysphagia, TG > 300 mg/dL SEs: Constipation, GI upset Drug interactions Can directly bind other drugs and ↓ absorption Should be administered 1 hour before or 4-6 hours after other drugs Start low and go slow! Statin + Ezetimibe Zetia® Additional 12-21% decrease in LDL Clinical pearls Very well tolerated Increase in hepatic transaminases J Fam Pract. 2006;55:70-2. Statin + Fibrate Products Gemfibrozil (Lopid®) Fenofibrate (Tricor®, Triglide®, Lofibra®, Antara®) Results in: 40% decrease in LDL > 50% decrease in triglycerides 20% increase in HDL J Fam Pract. 2006;55:70-2. Statin + Fibrate Increased risk of myopathy in combination (greater with gemfibrozil) For fibrates: Contraindications: Active liver disease, gallbladder disease, CrCl < 30 mL/min SEs: GI upset, cholelithiasis, hepatotoxicity (rare), ↑ CPK Statin + Niacin Products Immediate release (IR) Sustained release (Slo-Niacin®, Nicobid®) Extended release (Niaspan®) Results in: > 40% decrease in LDL > 40% decrease in triglycerides > 30% increase in HDL Clin Cardiol. 2003;26:112-8. Arch Intern Med. 2004;64:1121-7. Statin + Niacin Increased risk of myopathy in combination For niacin: Contraindications: Active liver disease, active peptic ulcer disease, active gout Caution: poorly controlled diabetes SEs: GI upset, flushing, itching, hepatotoxicity (highest with sustained release) Dosing considerations Take aspirin 325 mg before each dose Take with food Start low and titrate up the dose slowly Avoid dosing with warm beverages Combination Products Ezetimibe with simvastatin (Vytorin®) Extended-release niacin with simvastatin (Simcor®) Extended-release niacin with lovastatin (Advicor®) Atorvastatin with amlodipine (Caduet®) Remember… Lifestyle modifications Decrease saturated fat, trans fat, and cholesterol Increase omega-3-fatty acids, viscous fiber, and plant stanols/sterols Weight loss Increase physical activity Smoking cessation Back to Basics http://diabetesindia.org/images/know_diabetes_ABC.jpg