Diabetes Update
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  • Lowering HbA 1C Reduces Risk of Complications United Kingdom Prospective Diabetes Study (UKPDS) UKPDS, the largest and longest study of the benefits of tight glycemic control in patients with type 2 diabetes, has demonstrated that improved glucose control in patients with type 2 diabetes reduces the risk of developing retinopathy, nephropathy, and possibly neuropathy. In the UKPDS, newly diagnosed patients with type 2 diabetes were assigned either to conventional or intensive therapy. Conventional therapy began with dietary intervention, with the goal of therapy to maintain fasting plasma glucose below 270 mg/dL. If marked hyperglycemia or symptoms occurred, patients were secondarily randomized to treatment with sulfonylurea or insulin therapy, with the additional option of metformin in overweight patients. For those assigned to intensive therapy, the goal was to maintain a FPG <108 mg/dL. Non-overweight patients were randomly assigned to treatment with a sulfonylurea or insulin. Overweight patients were randomly assigned to one of the above options or metformin. Overall, the risk of any diabetes-related endpoint was reduced by 12% and the microvascular complications rate decreased by 25% in patients receiving intensive therapy. UKPDS. Lancet. 1998;352:837-853. Epidemiologic analysis showed a continuous relationship between the risk of microvascular complications and glycemia, suggesting that for every percentage point decrease in HbA 1c there was a 35% reduction in the risk of microvascular complications. Matthews DR, et al. ADA. 1999, Abstract 0669.
  • Goals of Intensive Diabetes Management glucose hypothesis: people without diabetes do not get diabetic complications achieving euglycemia is a means to and end: The end point of therapy is by normalization of glucose to prevent the occurrence of complications universally accepted due to irrefutable prospective studies studies demonstrated that glycemic control is both attainable and beneficial factors preventing this from being actualized hypoglycemia hyperglycemia DKA quality of life of the individual must be maintained throughout the therapy REF: ADA: Clinical Practice Recommendations, 2001.  
  • Slide Index 00030 DISCUSSION POINTS: Click 1: DCCT and EDIC data in left panel: Left panel shows data from a sub-group of patients who had been in the intensive group during the DCCT and continued in EDIC, a long-term follow-up of the DCCT This sub-group began the DCCT with an average HbA 1c of 9.0% [first bar], and ended the study with a mean of 7.3% [second bar]. After the DCCT ended, patients returned to community-based diabetes management and were followed for an additional 4 [third bar, blue] and 6 [last bar, blue] years. As can be seen by the increasing HbA 1c in the last 2 blue bars, these patients had difficulty sustaining HbA 1c improvements achieved during the DCCT. Click 2: UKPDS data appears in right panel The right panel shows data from the insulin-treated group of the UKPDS. Initial decreases in HbA 1c were not sustained during the 10-year study period. SLIDE BACKGROUND: EDIC: Epidemiology of Diabetes Interventions and Complications 1375 of the 1441 DCCT participants (95%) volunteered to participate in EDIC. 1208 patients were evaluated after 4 years of follow-up in EDIC (605 of these were previously in the DCCT intensive group; N for Year 6 not yet available). Data for DCCT/EDIC on slide are for previous participants in DCCT intensive group. The gap between this group and their counterparts in the conventional group has diminished over time. Data for previous participants in DCCT conventional group are: DCCT time 0 = 9.0% DCCT time 6.5 yrs = 9.0% EDIC + 4 years = 8.2% EDIC + 6 years = 8.1% Data for DCCT/EDIC are means.
  • Relationship Between %BG in Target and HbA1c Level Brewer at the Barbara Davis Center in Denver, Colorado effort to determine the percentage of SMBGs within, above or below target range that result in HbA1c levels within target range = 70 to 180 mg/dl above target range = greater than 180 mg/dl below target range = below 70 mg/dl a slight difference needs to be achieved of BG within target range to achieve a reduction of HbA1c 8.5% to 7%. slight improvements yield large results! Note: at all HbA1c levels the occurrence of hypoglycemic values is in excess of 10%. REF: Brewer K, Chase P, Owen S, Garg S, Diabetes Care 1998, 21:2.
  • Key Points The primary objectives of effective diabetes management are to reduce A1C to as near-normal levels (ie, 4%–6%) as is possible and safe, to lower systolic blood pressure to 75%. 1 Most recently, the Steno-2 Study followed 160 patients with type 2 diabetes and microalbuminuria over 7.8 years to determine the effect of intensive treatment on long-term CV and microvascular outcomes. Researchers found that target-driven, intensive treatment consisting of stepwise diet, exercise, and pharmacotherapy for glycemia, microalbuminuria, lipids, and blood pressure resulted in a decreased risk of CV and microvascular events of about 50%. Control group members received conventional treatment in accordance with national guidelines. However, factors leading to diminished degrees of separation between the intensive treatment and control groups (eg, more than 50% of control group members were referred for specialist treatment during the course of the study) led the authors to estimate that the actual risk reduction associated with intensive versus conventional therapy may be even greater than that observed. 2 References American Diabetes Association. Clinical Practice Recommendations. Implications of the United Kingdom Prospective Diabetes Study. Diabetes Care . 2003;26(suppl 1):S28-S32. Gæde P, Vedel P, Larsen N, Jensen GVH, Parving H-H, Pedersen O. Multifactorial intervention and cardiovascular disease in patients with type 2 diabetes. N Engl J Med . 2003;348:383-393.
  • This is the trend among all insulin injectors based on self reported data.
  • It appears the numbers might be the same when sampling MDs at the ADA.
  • FARAH- FIX INCOME DATA LEGEND Shows patient profiles captured in sample (classification, gender, education) Education – US far more educated than other countries, highly industrialized, serious consequences of the rich lifestyle – obesity & sedentary lifestyles 3 in 10 diabetes patients are overweight and half are obese or morbidly obese (US) – relatively unhealthy compared to all other sampled nations Higher incidence of cardiovascular problems, high cholesterol, numbness/tingling and pain in hands or feet among patients with weight problems Average weight is 200 lbs, average height 5-6

Diabetes Update Presentation Transcript

  • 1. Diabetes Update Bruce Bode, MD, FACE Atlanta Diabetes Associates Facts, Trends and Observations
  • 2. Ultimate Goals Of Diabetes Treatment Sustained Normal Blood Glucose Control Lowest Incidence of Hypoglycemia No Long Term Diabetes Complications No Acute Diabetes Complications = = Best Quality of Life with a Chronic Disease
  • 3. Relative Risk of Progression of Diabetic Complications
            • DCCT Research Group, N Engl J Med 1993, 329:977-986.
    RELATIVE RISK Mean A1C
  • 4.
    • Gain of 15.3 years of complication free living compared to conventional therapy
    • Gain of 5.1 years of life compared to conventional therapy
    Lifetime Benefits of Intensive Therapy (DCCT)
            • DCCT Study Group, JAMA 1996, 276:1409-1415.
  • 5. DCCT
    • 10% reduction in HbA 1c
    • 43% reduced risk of retinopathy progression
    • 18% increased risk of severe hypoglycemia with coma and/or seizure
            • DCCT Research Group, N Engl J Med 1993, 329:977-986.
  • 6. *Percent risk reduction per 0.9% decrease in HbA 1C ; UKPDS. Lancet . 1998;352:837-853. Lowering A1C Reduces Risk of Complications Reduction in risk (%)* p =0.029 p =0.0099 p =0.052 p =0.015 p =0.000054 0 -10 -20 -30 -40 -50 -12 -25 -16 -34 -21 Any diabetes-related endpoint Microvascular endpoint MI Retinopathy Albuminuria at 12 years United Kingdom Prospective Diabetes Study (UKPDS)
  • 7. New Targets of Intensive Diabetes Management
      • Near-normal glycemia
        • A1C less than 6.5%
        • Post-prandial: <140 mg/dl
      • Avoid short-term crisis
        • Hypoglycemia
        • Hyperglycemia
        • DKA
      • Minimize long-term complications
      • Improve QOL
            • ADA: Clinical Practice Recommendations , 2001.
            • AACE and EASD
            • DCCT Research Group, N Engl J Med 1993, 329:977-986 .
  • 8. How Are We Doing?
  • 9. U.S. Diabetes Prevalence
      • Diabetes kills 1 American every 3 minutes
      • New case diagnosed every 40 seconds
      • More deaths than AIDS and breast cancer combined
      • Average life expectancy: 15 years less than non-diabetes population
      • Afflicts over 177 million people worldwide
      • 300 million afflicted by 2025
    18 Million
  • 10. World View
    • 177 million worldwide
    • 4th leading cause of death by disease
    • India 33 million people with diabetes
    • China 23 million people with diabetes
    • Population of diabetes will double to triple by 2025
    • One out of every three Americans born today will develop diabetes
            • Time magazine December 2003; CDC
  • 11. Costs Continue to Increase (U.S.) Diabetes Care 26:917-932, 2003
  • 12. Percentage of Patients With Diabetes Having A1C <7% Harris MI, et al. Diabetes Care . 1999;22:403-408. 0 20 40 60 80 100 Diet alone Oral agents Insulin US Adults With Diagnosed Diabetes in 1988-94 NHANES III 73 38 26 Whole population 45 Percent at goal Therapy used
  • 13. Lessons from the DCCT and UKPDS: Sustained Intensification of Therapy is Difficult DCCT EDIC (Type 1) UKPDS (Type 2), Insulin Group DCCT/EDIC Research Group. New Engl J Med 2000; 342:381-389 Steffes M et al. Diabetes 2001; 50 (suppl 2):A63 UK Prospective Diabetes Study Group (UKPDS) 33 Lancet 1998; 352:837-853 4 6 8 10 9.0 8.1 7.3 7.9 0 6.5 + 4 + 6 yrs DCCT EDIC 0 6 7 8 0 2 4 6 8 10 yrs A1C (%) Normal Baseline A1C (%)
  • 14. Relationship between % BG in Target and A1C Level
            • Brewer K, Chase P, Owen S, Garg S, Diabetes Care 1998, 21:2.
    Within Target Above Target Below Target 33% 18% 49% A1C = 7% A1C = 8.5% 46% 12% 42% A1C = 8% 41% 14% 45%
  • 15. Primary Objectives of Effective Management A1C % SBP mm Hg LDL mg/dL 45 50 55 60 65 70 75 80 85 90 9 Diagnosis 8 7 130 100 145 140 Patient Age Reduction of both micro- and macro- vascular event rates …by 75%! lGæde P, Vedel P, Larsen N, Jensen GVH , Parving H-H, Pedersen O. Multifactorial intervention and cardiovascular disease in patients with type 2 diabetes. N Engl J Med . 2003;348:383-393.
  • 16. How is diabetes currently being treated?
  • 17. Roper Starch Worldwide
    • “ Gold Standard” market research study of diabetes patients 18 years and older
    • Self reported information
    • Conducted annually in the U.S.
    • N= 6,000
    Roper Starch Worldwide, 2002
  • 18. PROGRESSION TO INSULIN USE (US) Among Type 2 diabetic patients sampled Prior Therapy Prior Therapy Prior Therapy 43% no prior therapy 51% exclusive pills 66% no prior therapy 41% exclusive pills 14% insulin 18% diet/no med 5% diet to pills 13% pills to insulin 8% insulin Roper Starch Worldwide, 2002 Average time on pills before moving to insulin = 4.9 years Average time on diet before moving to pills = 3.2 years Average time on pills before moving to insulin = 5.6 years
  • 19. Trends Among Insulin Injectors Intensive Therapy 46% Pump Therapy Multiple Daily Injections 2001 Conventional 54% Intensive Therapy 57% Pump Therapy Multiple Daily Injections 2002 Conventional % Roper Starch Worldwide, 2002 20% 37% 43% 31% 15%
  • 20. ADA Physician Reported Treatment Choices Based on aggregate responses (N=213) 23% Conventional (1-2 shots/day) 57% Intensive(3 or more shots/day) 20% Insulin Pump Therapy Insulin Treated Patients ADA 2003, Physician Survey, Medtronic MiniMed
  • 21. Total Patients Using Insulin Pumps Estimated figures for 2003
  • 22. Other Possible Contributions to Intensive Management PATIENT ATTITUDES AND BEHAVIORS
  • 23. DEMOGRAPHICS (US) By education and income % EDUCATION High School or less College Roper Starch Worldwide, 2002 % INCOME LEVEL < $35K $35K - $75K > $100K
  • 24. HCPs Frequently Visited By Patients TYPE 1 % TYPE 2 % Roper Starch Worldwide, 2002 “ What type of healthcare professional do you normally visit for your diabetes care?”
  • 25. Most Feel That They Are In Good Control Needs improvement Good control Roper Starch Worldwide, 2002 “ Are you satisfied with your diabetes control?” 81 19 US % incidence within total sample
  • 26. Most Patients Are Satisfied With Their Health Roper Starch Worldwide, 2002
  • 27. Self-Reported A1C Results Roper Starch Worldwide, 2002
  • 28. Summary
    • Diabetes prevalence and costs continue to grow
    • Lower treatment targets will likely drive the adoption of more intensive management
    • The use of intensive insulin management continues to grow with a notable increase in insulin pump use
    • A potential barrier to intensive management is patient’s lack of awareness and perception of good control