Pathogenesis of Type 2 Diabetes Abnormalities in T2DM pancreatic - - PDF document

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Pathogenesis of Type 2 Diabetes Abnormalities in T2DM pancreatic - - PDF document

9/23/2015 Multiple, Complex Pathophysiological Pathogenesis of Type 2 Diabetes Abnormalities in T2DM pancreatic insulin incretin Normal secretion effect pancreatic glucagon Insulin Resistance secretion Environment Genes ? gut


slide-1
SLIDE 1

9/23/2015 1

+ ‐ ‐

peripheral glucose uptake hepatic glucose production pancreatic insulin secretion pancreatic glucagon secretion gut carbohydrate delivery & absorption incretin effect

HYPERGLYCEMIA HYPERGLYCEMIA

?

Adapted from: Inzucchi SE, Sherwin RS in: Cecil Medicine 2011

Multiple, Complex Pathophysiological Abnormalities in T2DM

Pathogenesis of Type 2 Diabetes

Genes Environment

Normal Insulin Resistance Decreased Insulin Secretion

Type 2 Diabetes

CR Kahn Diabetes 43:1066-1084, 1994

UKPDS: Progressive Hyperglycemia Secondary to Beta-Cell Failure

UKPDS 16. Diabetes 1995;44:1249-58.

HbA1c (%) 1 2 3 4 5 6 6 7 8 9 Years from Randomization 3 6 9 12 15 20 40 60 80 100

Conventional Sulfonylurea Metformin

Beta- Cell Functio n (%)

Conventional “Intensive” Monotherapy

Lancet 1998;352:837-53. 13

NOT your fault!

+ ‐ ‐

peripheral glucose uptake hepatic glucose production pancreatic insulin secretion pancreatic glucagon secretion gut carbohydrate delivery & absorption incretin effect

HYPERGLYCEMIA HYPERGLYCEMIA

?

Adapted from: Inzucchi SE, Sherwin RS in: Cecil Medicine 2011

DPP-4 inhibitors

GLP-1R agonists

Insulin

Incretins and Insulin: Management of T2DM

slide-2
SLIDE 2

9/23/2015 2 The Holy Grail is to mimic Physiologic Serum Insulin Secretion Profile

Polonsky KS et al, N Engl J Med 1996.

Plasma Insulin (U/mL)

75 50 25

Time

4:00 8:00 12:00 16:00 20:00 24:00 28:00 32:00 Breakfast Lunch Dinner

Doesn’t seem that hard….

Insulin Therapy in Type 2 DM

Take home points:

  • Insulin controls blood glucose
  • Insulin is not a penalty
  • Using basal insulin is simple and

safe

  • Complex regimens are demanding

for the patient and the provider

Plasma Insulin (U/mL) Time

4:00 8:00 12:00 16:00 20:00 24:00 4:00 8:00 Breakfast Lunch Dinner

Ideal Basal/Bolus Insulin Absorption Pattern:

Multiple daily injections or insulin pump

75 50 25 Glucose Bolus Insulin Basal Insulin

Skyler J, Kelley’s Textbook of Internal Medicine 2000.

4:00 16:00 20:00 24:00 4:00 Breakfast Lunch Dinner 12:00 8:00 Time Plasma Insulin 50% NPH 50% 4:00 16:00 20:00 24:00 4:00 Breakfast Lunch Supper 12:00 8:00 Time Plasma Insulin 50% 50% Glargine or Detemir Immediate Insulin 4:00 16:00 20:00 24:00 4:00 Breakfast Lunch Dinner 12:00 8:00 Time Plasma Insulin 50% NPH 50% Prandial Insulin 4:00 16:00 20:00 24:00 4:00 Breakfast Lunch Dinner 12:00 8:00 Time Plasma Insulin 50% NPH 50% Prandial Insulin

Many insulin regimens are effective SMBG is based on regimen

slide-3
SLIDE 3

9/23/2015 3

https://www.google.com/search?q=insulin+pump&biw=1440&bih=752&source

Is there another way?

Glucagon Like Peptide receptor agonists GLP1 RA

Pancreatic Islet Morphology: Normal Glucose Tolerance and T2DM

Adapted from Rhodes CJ. Science. 2005; 307:380–384.

α-Cells

(glucagon)

NGT T2DM

β-Cells (insulin)

T2DM = type 2 diabetes mellitus

Adapted from Muller WA, et al. N Engl J Med. 1970;283:109–115.

Insufficient Insulin and Elevated Glucagon in T2DM ( Insulin/Glucagon Ratio)

T2DM = type 2 diabetes mellitus; NGT = normal glucose tolerance; CHO=carbohydrate

Insulin

75 100 125 150

  • 60

60 120 180 240

pg/mL

Glucagon

Time (min) NGT T2DM

50 100 150

 U/mL CHO meal

Glucose

100 200 300 400

mg/dL

slide-4
SLIDE 4

9/23/2015 4

N = 6; Mean (SE); *P0.05 Data from Nauck MA, et al. J Clin Endocrinol Metab. 1986;63:492-498

GLP-1 and DPP4 The Incretin Effect in Healthy Subjects

C-peptide (nmol/L) Time (min) 0.0 0.5 1.0 1.5 2.0 Incretin Effect * * * * * * *

Oral Glucose Intravenous (IV) Glucose

Plasma Glucose (mg/dL) 200 100 Time (min) 60 120 180 60 120 180

GLP-1 Modulates Numerous Functions in Humans

Data from Flint A, et al. J Clin Invest. 1998;101:515-520; Data from Larsson H, et al. Acta Physiol Scand. 1997;160:413-422 Data from Nauck MA, et al. Diabetologia. 1996;39:1546-1553; Data from Drucker DJ. Diabetes. 1998;47:159-169

Stomach:

Helps regulate gastric emptying Promotes satiety and reduces appetite

Liver:

 Glucagon reduces hepatic glucose output

Beta cells:

Enhances glucose-dependent insulin secretion

Alpha cells:

 Postprandial glucagon secretion

GLP-1: Secreted upon the ingestion of food

GLP-1 ↓ ↓

This is overwhelming

Mrs Jones is here for a 30 minute visit

slide-5
SLIDE 5

9/23/2015 5

Lifestyle:

Always first line

Relationship of walking to mortality among US adults with diabetes

DESIGN: Prospective cohort study

SUBJECTS: 2896 adults 1990 and 1991 National Health Interview Survey

RESULTS:

CONCLUSIONS: Walking was associated with lower mortality across a diverse spectrum of adults with diabetes. One death per year may be preventable for every 61 people who could be persuaded to walk at least 2 h/wk. Arch Intern Med. 2003 Jun 23;163(12):1440-7

Mortality Inactive 2 hours/wk 3-4 hours/wk All Cause Ref 1.0 39% 54% CV Ref 1.0 34% 53%

more stringent less stringent

Patient attitude and expected treatment efforts

highly motivated, adherent, excellent self-care capacities less motivated, non-adherent, poor self-care capacities

Risks potentially associated with hypoglycemia and

  • ther drug adverse effects

low high

Disease duration

newly diagnosed long-standing

Life expectancy

long short

Important comorbidities

absent severe few / mild

Established vascular complications

absent severe few / mild Readily available limited

Usually not modifiable Potentially modifiable

HbA1c

7%

PATIENT / DISEASE FEATURES

Approach to the management

  • f hyperglycemia

Resources and support system Courtesy of S Inzucchi Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0

Patient Centered:

Diabetes Care 2012;35:1364–1379 Diabetologia 2012;55:1577–1596

Approach to the Management of Hyperglycemia

Risks potentially associated with hypoglycemia,

  • ther drug

adverse effects Low High

more stringent less stringent HbA1c

7% Figure 1. Modula on of the intensiveness

  • f glucose lowering therapy in T2DM

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0

slide-6
SLIDE 6

9/23/2015 6

Diabetes Care 2012;35:1364–1379 Diabetologia 2012;55:1577–1596

Disease duration Newly diagnosed Long-standing

more stringent less stringent HbA1c

7%

Approach to the Management of Hyperglycemia

Figure 1. Modula on of the intensiveness

  • f glucose lowering therapy in T2DM

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0 Diabetes Care 2012;35:1364–1379 Diabetologia 2012;55:1577–1596

Life expectancy Long Short

more stringent less stringent HbA1c

7%

Approach to the Management of Hyperglycemia

Figure 1. Modula on of the intensiveness

  • f glucose lowering therapy in T2DM

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0 Diabetes Care 2012;35:1364–1379 Diabetologia 2012;55:1577–1596

Important comorbidities Absent Severe

more stringent less stringent HbA1c

7% Few / Mild

Approach to the Management of Hyperglycemia

Figure 1. Modula on of the intensiveness

  • f glucose lowering therapy in T2DM

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0 Diabetes Care 2012;35:1364–1379 Diabetologia 2012;55:1577–1596

Established vascular complications Absent Severe

more stringent less stringent HbA1c

7% Few / Mild

Approach to the Management of Hyperglycemia

Figure 1. Modula on of the intensiveness

  • f glucose lowering therapy in T2DM

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0

slide-7
SLIDE 7

9/23/2015 7

Diabetes Care 2012;35:1364–1379 Diabetologia 2012;55:1577–1596

Approach to the Management of Hyperglycemia

Patient attitude & expected treatment efforts Highly motivated, adherent, excellent self-care capacities Less motivated, non-adherent, poor self-care capacities

more stringent less stringent HbA1c

7%

P O T E N T I A L L Y M O D I F I A B L E

Figure 1. Modula on of the intensiveness

  • f glucose lowering therapy in T2DM

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0 Diabetes Care 2012;35:1364–1379 Diabetologia 2012;55:1577–1596

Resources and support systems Readily available Limited

more stringent less stringent HbA1c

7%

Approach to the Management of Hyperglycemia

P O T E N T I A L L Y M O D I F I A B L E

Figure 1. Modula on of the intensiveness

  • f glucose lowering therapy in T2DM

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0

more stringent less stringent

Patient attitude and expected treatment efforts

highly motivated, adherent, excellent self-care capacities less motivated, non-adherent, poor self-care capacities

Risks potentially associated with hypoglycemia and

  • ther drug adverse effects

low high

Disease duration

newly diagnosed long-standing

Life expectancy

long short

Important comorbidities

absent severe few / mild

Established vascular complications

absent severe few / mild Readily available limited

Usually not modifiable Potentially modifiable

HbA1c

7%

PATIENT / DISEASE FEATURES

Approach to the management

  • f hyperglycemia

Resources and support system

Figure 1. Modulation of the intensiveness of glucose lowering therapy in T2DM

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0

more stringent less stringent

Patient attitude and expected treatment efforts

highly motivated, adherent, excellent self-care capacities less motivated, non-adherent, poor self-care capacities

Risks potentially associated with hypoglycemia and

  • ther drug adverse effects

low high

Disease duration

newly diagnosed long-standing

Life expectancy

long short

Important comorbidities

absent severe few / mild

Established vascular complications

absent severe few / mild Readily available limited

Usually not modifiable Potentially modifiable

HbA1c

7%

PATIENT / DISEASE FEATURES

Approach to the management

  • f hyperglycemia

Resources and support system

Figure 1. Modulation of the intensiveness of glucose lowering therapy in T2DM

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0

slide-8
SLIDE 8

9/23/2015 8

more stringent less stringent

Patient attitude and expected treatment efforts

highly motivated, adherent, excellent self-care capacities less motivated, non-adherent, poor self-care capacities

Risks potentially associated with hypoglycemia and

  • ther drug adverse effects

low high

Disease duration

newly diagnosed long-standing

Life expectancy

long short

Important comorbidities

absent severe few / mild

Established vascular complications

absent severe few / mild Readily available limited

Usually not modifiable Potentially modifiable

HbA1c

7%

PATIENT / DISEASE FEATURES

Approach to the management

  • f hyperglycemia

Resources and support system

Figure 1. Modulation of the intensiveness of glucose lowering therapy in T2DM

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0

Management of Hyperglycemia in Type 2 Diabetes, 2015: A Patient-Centered Approach

Update to a Position Statement of the American Diabetes Association (ADA) and the European Association for the Study of Diabetes (EASD)

Diabetes Care 2015;38:140–149 Diabetologia 2015;10.1077/s00125-014-3460-0 Inzucchi SE, Bergenstal RB, Buse JB, Diamant M, Ferrannini E, Nauck M, Peters AL, Tsapas A, Wender R, Matthews DR

Healthy eating, weight control, increased physical activity & diabetes education

Metformin

high low risk neutral/loss GI / lactic acidosis low If HbA1c target not achieved after ~3 months of monotherapy, proceed to 2-drug combination (order not meant to denote any specific preference - choice dependent on a variety of patient- & disease-specific factors): Metformin

+

Metformin

+

Metformin

+

Metformin

+

Metformin

+

high low risk gain edema, HF, fxs low Thiazolidine- dione intermediate low risk neutral rare high DPP-4 inhibitor highest high risk gain hypoglycemia variable Insulin (basal) Metformin

+

Metformin

+

Metformin

+

Metformin

+

Metformin

+

Basal Insulin +

Sulfonylurea

+

TZD DPP-4-i GLP-1-RA Insulin§

  • r
  • r
  • r
  • r

Thiazolidine- dione

+

SU DPP-4-i GLP-1-RA Insulin§ TZD DPP-4-i

  • r
  • r
  • r

GLP-1-RA high low risk loss GI high GLP-1 receptor agonist Sulfonylurea high moderate risk gain hypoglycemia low SGLT2 inhibitor intermediate low risk loss GU, dehydration high SU TZD Insulin§ GLP-1 receptor agonist

+

SGLT-2 Inhibitor

+

SU TZD Insulin§ Metformin

+

Metformin

+

  • r
  • r
  • r
  • r

SGLT2-i

  • r
  • r
  • r

SGLT2-i

Mono- therapy

Efficacy* Hypo risk Weight Side effects Costs

Dual therapy†

Efficacy* Hypo risk Weight Side effects Costs

Triple therapy

  • r
  • r

DPP-4 Inhibitor

+

SU TZD Insulin§ SGLT2-i

  • r
  • r
  • r

SGLT2-i

  • r

DPP-4-i

If HbA1c target not achieved after ~3 months of dual therapy, proceed to 3-drug combination (order not meant to denote any specific preference - choice dependent on a variety of patient- & disease-specific factors): If HbA1c target not achieved after ~3 months of triple therapy and patient (1) on oral combination, move to injectables, (2) on GLP-1 RA, add basal insulin, or (3) on optimally titrated basal insulin, add GLP-1-RA or mealtime insulin. In refractory patients consider adding TZD or SGL T2-i:

Metformin

+

Combination injectable therapy‡

GLP-1-RA Mealtime Insulin Insulin (basal)

+

Figure 2. An ‐hyperglycemic therapy in T2DM: General recommenda ons

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0 Healthy eating, weight control, increased physical activity & diabetes education

Metformin

high low risk neutral/loss GI / lactic acidosis low If HbA1c target not achieved after ~3 months of monotherapy, proceed to 2-drug combination (order not meant to denote any specific preference - choice dependent on a variety of patient- & disease-specific factors): Metformin

+

Metformin

+

Metformin

+

Metformin

+

Metformin

+

high low risk gain edema, HF, fxs low Thiazolidine- dione intermediate low risk neutral rare high DPP-4 inhibitor highest high risk gain hypoglycemia variable Insulin (basal) Metformin

+

Metformin

+

Metformin

+

Metformin

+

Metformin

+

Basal Insulin +

Sulfonylurea

+

TZD DPP-4-i GLP-1-RA Insulin§

  • r
  • r
  • r
  • r

Thiazolidine- dione

+

SU DPP-4-i GLP-1-RA Insulin§ TZD DPP-4-i

  • r
  • r
  • r

GLP-1-RA high low risk loss GI high GLP-1 receptor agonist Sulfonylurea high moderate risk gain hypoglycemia low SGLT2 inhibitor intermediate low risk loss GU, dehydration high SU TZD Insulin§ GLP-1 receptor agonist

+

SGLT-2 Inhibitor

+

SU TZD Insulin§ Metformin

+

Metformin

+

  • r
  • r
  • r
  • r

SGLT2-i

  • r
  • r
  • r

SGLT2-i

Mono- therapy

Efficacy* Hypo risk Weight Side effects Costs

Dual therapy†

Efficacy* Hypo risk Weight Side effects Costs

Triple therapy

  • r
  • r

DPP-4 Inhibitor

+

SU TZD Insulin§ SGLT2-i

  • r
  • r
  • r

SGLT2-i

  • r

DPP-4-i

If HbA1c target not achieved after ~3 months of dual therapy, proceed to 3-drug combination (order not meant to denote any specific preference - choice dependent on a variety of patient- & disease-specific factors): If HbA1c target not achieved after ~3 months of triple therapy and patient (1) on oral combination, move to injectables, (2) on GLP-1 RA, add basal insulin, or (3) on optimally titrated basal insulin, add GLP-1-RA or mealtime insulin. In refractory patients consider adding TZD or SGL T2-i:

Metformin

+

Combination injectable therapy‡

GLP-1-RA Mealtime Insulin Insulin (basal)

+

Figure 2. An ‐hyperglycemic therapy in T2DM: General recommenda ons

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0

slide-9
SLIDE 9

9/23/2015 9

Healthy eating, weight control, increased physical activity & diabetes education

Metformin

high low risk neutral/loss GI / lactic acidosis low If HbA1c target not achieved after ~3 months of monotherapy, proceed to 2-drug combination (order not meant to denote any specific preference - choice dependent on a variety of patient- & disease-specific factors): Metformin

+

Metformin

+

Metformin

+

Metformin

+

Metformin

+

high low risk gain edema, HF, fxs low Thiazolidine- dione intermediate low risk neutral rare high DPP-4 inhibitor highest high risk gain hypoglycemia variable Insulin (basal) Metformin

+

Metformin

+

Metformin

+

Metformin

+

Metformin

+

Basal Insulin +

Sulfonylurea

+

TZD DPP-4-i GLP-1-RA Insulin§

  • r
  • r
  • r
  • r

Thiazolidine- dione

+

SU DPP-4-i GLP-1-RA Insulin§ TZD DPP-4-i

  • r
  • r
  • r

GLP-1-RA high low risk loss GI high GLP-1 receptor agonist Sulfonylurea high moderate risk gain hypoglycemia low SGLT2 inhibitor intermediate low risk loss GU, dehydration high SU TZD Insulin§ GLP-1 receptor agonist

+

SGLT-2 Inhibitor

+

SU TZD Insulin§ Metformin

+

Metformin

+

  • r
  • r
  • r
  • r

SGLT2-i

  • r
  • r
  • r

SGLT2-i

Mono- therapy

Efficacy* Hypo risk Weight Side effects Costs

Dual therapy†

Efficacy* Hypo risk Weight Side effects Costs

Triple therapy

  • r
  • r

DPP-4 Inhibitor

+

SU TZD Insulin§ SGLT2-i

  • r
  • r
  • r

SGLT2-i

  • r

DPP-4-i

If HbA1c target not achieved after ~3 months of dual therapy, proceed to 3-drug combination (order not meant to denote any specific preference - choice dependent on a variety of patient- & disease-specific factors): If HbA1c target not achieved after ~3 months of triple therapy and patient (1) on oral combination, move to injectables, (2) on GLP-1 RA, add basal insulin, or (3) on optimally titrated basal insulin, add GLP-1-RA or mealtime insulin. In refractory patients consider adding TZD or SGL T2-i:

Metformin

+

Combination injectable therapy‡

GLP-1-RA Mealtime Insulin

Figure 2. An ‐hyperglycemic therapy in T2DM: General recommenda ons

Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0 Insulin (basal) + Healthy eating, weight control, increased physical activity & diabetes education

Metformin

high low risk neutral/loss GI / lactic acidosis low If HbA1c target not achieved after ~3 months of monotherapy, proceed to 2-drug combination (order not meant to denote any specific preference - choice dependent on a variety of patient- & disease-specific factors): Metformin

+

Metformin

+

Metformin

+

Metformin

+

Metformin

+

high low risk gain edema, HF, fxs low Thiazolidine- dione intermediate low risk neutral rare high DPP-4 inhibitor highest high risk gain hypoglycemia variable Insulin (basal) Metformin

+

Metformin

+

Metformin

+

Metformin

+

Metformin

+

Basal Insulin +

Sulfonylurea

+

TZD DPP-4-i GLP-1-RA Insulin§

  • r
  • r
  • r
  • r

Thiazolidine- dione

+

SU DPP-4-i GLP-1-RA Insulin§ TZD DPP-4-i

  • r
  • r
  • r

GLP-1-RA high low risk loss GI high GLP-1 receptor agonist Sulfonylurea high moderate risk gain hypoglycemia low SGLT2 inhibitor intermediate low risk loss GU, dehydration high SU TZD Insulin§ GLP-1 receptor agonist

+

SGLT-2 Inhibitor

+

SU TZD Insulin§ Metformin

+

Metformin

+

  • r
  • r
  • r
  • r

SGLT2-i

  • r
  • r
  • r

SGLT2-i

Mono- therapy

Efficacy* Hypo risk Weight Side effects Costs

Dual therapy†

Efficacy* Hypo risk Weight Side effects Costs

Triple therapy

  • r
  • r

DPP-4 Inhibitor

+

SU TZD Insulin§ SGLT2-i

  • r
  • r
  • r

SGLT2-i

  • r

DPP-4-i

If HbA1c target not achieved after ~3 months of dual therapy, proceed to 3-drug combination (order not meant to denote any specific preference - choice dependent on a variety of patient- & disease-specific factors): If HbA1c target not achieved after ~3 months of triple therapy and patient (1) on oral combination, move to injectables, (2) on GLP-1 RA, add basal insulin, or (3) on optimally titrated basal insulin, add GLP-1-RA or mealtime insulin. In refractory patients consider adding TZD or SGL T2-i:

Metformin

+

Combination injectable therapy‡

GLP-1-RA Mealtime Insulin Insulin (basal)

+ Diabetes Care 2015;38:140-149; Diabetologia 2015;10.1077/s00125-014-3460-0

Common themes:

 Diet and physical activity  Patient goals and resources  Start with metformin  If A1c>9% start insulin

The 5 P’s: Consideration in the Design

  • f a Personalized T2DM Treatment Regimen
slide-10
SLIDE 10

9/23/2015 10

http://www.healthquality.va.gov/guidelines/CD/diabetes/DM20 10_FUL-v4e.pdf

Monotherapy

  • Biguanide
  • SU
  • Insulin

Combo Therapy

  • Biguanide+ SU
  • Biguanide+ insulin
  • SU + insulin

$ $

The 5 P’s: Consideration in the Design

  • f a Personalized T2DM Treatment Regimen

6

Pathophysiology informs treatment

slide-11
SLIDE 11

9/23/2015 11

Percentage of Patients Who Reached the Intensive-Treatment Goals at a Mean of 7.8 Years

Glycosylated Hemoglobin <6.5%

Patients (%)

20 30 40 50 60 70 10 80

Cholesterol <175 mg/dl Triglycerides <150 mg/dl Systolic BP <130 mm Hg Diastolic BP <80 mm Hg P=0.06 P<0.001 P=0.19 P=0.001 P=0.21 Intensive therapy Conventional therapy

Gæde P et al. NEJM. 2003;348: 383–393.

Steno-2 Study

Composite End Point of Death from CV Causes, Nonfatal MI, CABG, PCI, Nonfatal Stroke, Amputation, or Surgery for Peripheral Atherosclerotic Artery Disease Primary Composite End Point (%)

36 12 96 60 48 84 72 24 60 30 40 20 10 50

Intensive therapy Conventional Therapy

Months of Follow-up

P=0.007 Gæde P et al. NEJM. 2003;348: 383–393.

Hazard ratio = 0.47 (95 percent c.i., 0.24 to 0.73; P=0.008)