Ottimizzare la terapia del diabete mellito tipo 2 Emanuele Bosi Professore Ordinario e Direttore Scuola di Specializzazione in Medicina Interna Università Vita Salute San Raffaele e ospedale San Raffaele Seminario ai Medici di Medicina Generale 14 Ottobre 2021 - ore 19.30 Incontri di formazione e confronto - Seminario ai Medici di Medicina Generale & Scuola di Specializzazione in Medicina Interna, Università vita Salute San Raffaele Webinar, 14 Ottobre 2021 - ore 19.30
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Ottimizzare la terapia del diabete
mellito tipo 2
Emanuele BosiProfessore Ordinario e Direttore Scuola di Specializzazione in Medicina Interna
Università Vita Salute San Raffaele e ospedale San Raffaele
Seminario ai Medici di Medicina Generale
14 Ottobre 2021 - ore 19.30
Incontri di formazione e confronto - Seminario ai Medici di Medicina Generale& Scuola di Specializzazione in Medicina Interna, Università vita Salute San Raffaele
Webinar, 14 Ottobre 2021 - ore 19.30
Due determinanti sono alla base della patogenesi del diabete
di tipo 2: insulino-resistenza e insulino-deficienza
Adapted from Inzucchi SE. JAMA 2002;287:360–72
INSULIN RESISTANCE
Increased
glucose
production
Decreased
glucose
uptake/
utilisation
Increased
lipolysis
Increased
free fatty acids
ISLET CELL
DYSFUNCTION
-cell dysfunction
α-cell dysfunction
Hyperglycaemia
Lipotoxicity Lipotoxicity
2
IFG=impaired fasting glucose; IGT=impaired glucose tolerance; NGT=normal glucose tolerance. Adapted from International Diabetes Center Adapted from Type 2 Diabetes BASICS. Minneapolis, Minn: International Diabetes Center; 2000
3
Complications
Blo
od
glu
co
se
Time
InsulinRisk of diabetes
Impaired islet cell function
Insulin resistance
Pro
po
rtio
na
l a
mou
nt o
f
insu
lin in r
ela
tio
n to
no
rma
l (%
)
Postprandial glucose
Fasting glucose
DiabetesPrediabetes
(IFG/IGT)NGT
Il diabete di tipo 2 è una malattia cronica e progressiva,
caratterizzata da insorgenza precoce delle complicanze
3
Il diabete di tipo 2 è associato a complicanze croniche a carico di
numerosi organi e tessuti
4
Microvascular Macrovascular
Brain(stroke, TIA)
Eye(retinopathy, cataracts,
glaucoma)
Kidney(nephropathy, ESRD)
Nerves(neuropathy,
peripheral and
autonomic)
Heart (angina, MI, CHF)
Extremities(peripheral vascular
disease, gangrene,
amputation)
CHF=congestive heart failure; ESRD=end-stage renal disease; MI=myocardial infarction; TIA=transient ischaemic attackAdapted from Cavender MA et al. Am J Cardiovasc Drugs 2010;10:209–16
Le malattie cardiovascolari sono la causa prima dell’eccesso di mortalità associato al diabete di tipo 2
The Emerging Risk Factors Collaboration. N Engl J Med 2011;364:829-841.
Il diabete come equivalente cardiovascolare
Haffner SM, et al. N Engl J Med. 1998;339:229-34.
DM=diabetes mellitus; MI=myocardial infarction
7-y
ear in
cid
en
ce
rate
of
MI (
%)
0
20
No DMNo MI
50
40
No DMMI
DMNo MI
DMMI
30
10
p<0.001
45.0
p<0.001
18.8 20.2
3.5
Non-diabetic(n=1373)
Diabetic(n=1059)
Incidenza dell’infarto acuto del miocardio in USA 1990-2010
Adapted from Gregg EW, et al. N Engl J Med 2014;370:1514–1523.
Il diabete come fattore di rischio della malattia cardiovascolare
• Le malattie cardiovascolari sono la causa principale di mortalità e di morbilità dei soggetti diabetici;
• Il controllo della glicemia risulta efficace nella prevenzione, alla condizione di essere perseguito precocemente e senza incorrere in ipoglicemia.
• Benché l’incidenza delle complicanze del diabete si sia ridotta nel corso degli ultimi 20 anni, un eccesso di mortalità (rischio residuo) per malattie cardiovascolari persiste;
• La riduzione del rischio cardiovascolare rimane pertanto come obiettivo primario del diabete di tipo 2.
The De Fronzo’s Ominous Octet
Difetti multipli contribuiscono all’iperglicemia nel
diabete di tipo 2
Adapted from De Fronzo RA. Diabetes. 2009;58:773-95.
Hyperglycaemia
DecreasedInsulin
Secretion
IncreasedGlucagonSecretion
NeurotransmitterDysfunction
DecreasedIncretin Effect
IncreasedHGP Decreased
Glucose Uptake
IncreasedGlucose
Reabsorption
IncreasedLipolysis
Islet-a cell
Trattamenti anti-diabete
1. Stili di vita (empiricamente dall’epoca pre-insulina)
2. Insulina (1922)
3. Sulfoniluree (1955)
4. Metformina (1957)
5. Acarbose (1995)
6. Glitazoni (1997)
7. GLP-1 agonisti (2005)
8. DPP-4 inibitori (2006)
9. SGLT-2 inibitori (2012)
Pharmacologic targets of current drugs used in
the treatment of T2DM
11
Glitazones
Decrease lipolysis in adipose
tissue, increase glucose uptake
in skeletal muscle and decrease
glucose production in liver
DPP-4 inhibitors
Prolong GLP-1 action leading
to improved pancreatic
islet glucose sensingGLP-1 receptor agonists
Improve pancreatic islet
glucose sensing, slow gastric
emptying, improve satiety
Glinides
Increase insulin secretion
from pancreatic -cells
a-glucosidase inhibitors
Delay intestinal
carbohydrate absorption
Sulphonylureas
Increase insulin secretion
from pancreatic -cells
Adapted from Cheng AY, Fantus IG. CMAJ 2005;172:213–26. Adapted from Ahrén B, Foley JE. Int J Clin Pract 2008;62:8–14. Adapted from Kim Y, Babu AR.
Diabetes Metab Syndr Obes. 2012;5:313–27
SGLT-2 inhibitors
Lower the renal glucose threshold to
increase urinary glucose excretion
Pathogenetic site of action of oral anti-diabetic agents
Hyperglycaemia
DecreasedInsulin
Secretion
IncreasedGlucagonSecretion
NeurotransmitterDysfunction
DecreasedIncretin Effect
IncreasedHGP Decreased
Glucose Uptake
IncreasedGlucose
Reabsorption
IncreasedLipolysis
Islet-a cell
Metformin
Adapted from De Fronzo RA. Diabetes. 2009;58:773-95
Targeting insulin resistance
Pathogenetic site of action of oral anti-diabetic agents
Hyperglycaemia
DecreasedInsulin
Secretion
IncreasedGlucagonSecretion
NeurotransmitterDysfunction
DecreasedIncretin Effect
IncreasedHGP Decreased
Glucose Uptake
IncreasedGlucose
Reabsorption
IncreasedLipolysis
Islet-a cell
Sulphonylureas
Glinides
Adapted from De Fronzo RA. Diabetes. 2009;58:773-95
Targeting islet dysfunction
Hyperglycaemia
DecreasedInsulin
Secretion
IncreasedGlucagonSecretion
NeurotransmitterDysfunction
DecreasedIncretin Effect
IncreasedHGP Decreased
Glucose Uptake
IncreasedGlucose
Reabsorption
IncreasedLipolysis
Islet-a cell
Pathogenetic site of action of oral anti-diabetic agents
Adapted from De Fronzo RA. Diabetes. 2009;58:773-95
Pioglitazone
Targeting insulin resistance
Hyperglycaemia
DecreasedInsulin
Secretion
IncreasedGlucagonSecretion
NeurotransmitterDysfunction
DecreasedIncretin Effect
IncreasedHGP Decreased
Glucose Uptake
IncreasedGlucose
Reabsorption
IncreasedLipolysis
Islet-a cell
GLP-1 &
DPP4-inhibitors
Pathogenetic site of action of oral anti-diabetic agents
Adapted from De Fronzo RA. Diabetes. 2009;58:773-95
Targeting islet dysfunction
Hyperglycaemia
DecreasedInsulin
Secretion
IncreasedGlucagonSecretion
NeurotransmitterDysfunction
DecreasedIncretin Effect
IncreasedHGP Decreased
Glucose Uptake
IncreasedGlucose
Reabsorption
IncreasedLipolysis
Islet-a cell
SGLT2-inhibitors
Pathogenetic site of action of oral anti-diabetic agents
Adapted from De Fronzo RA. Diabetes. 2009;58:773-95
Insulin independent action
The usual paradigm:
Before UKPDS (1998): Sulfonylureas, ± Metformin → Insulin(Basal, Mix, Basal-bolus)
After UKPDS (1998): Metformin first, when possible, thenSulfonylureas and/or Insulin (Basal, Mix, Basal-bolus)
Management of hyperglycemia in type 2 diabetes: before 2006 no clear pathway of therapy to follow
2006
The first proposal
of an algorithm
Algorithm for the metabolic management of type 2 diabetes.
David M. Nathan et al. Diabetes Care 2006;29:1963-1972
2008
Update warning on
thiazolidinediones
Algorithm for the metabolic management of type 2 diabetes.
David M. Nathan et al. Diabetes Care 2008;31:173-175
2009
Introduction of GLP-1
receptor agonists
Algorithm for the metabolic management of type 2 diabetes; Reinforce lifestyle interventions at
every visit and check A1C every 3 months until A1C is <7% and then at least every 6 months.
David M. Nathan et al. Diabetes Care 2009;32:193-203
2012
Concept of patient-centered approach
Introduction of DPP-4 inhibitors
Antihyperglycemic therapy in type 2 diabetes: general recommendations.
Inzucchi SE et al. Diabetes Care 2012;35:1364-1379
Sequential Insulin Strategies in T2DM Inzucchi SE et al. Diabetes Care 2012;35:1364-1379
Guidelines for Glycemic, BP, & Lipid Control American Diabetes Assoc. Goals
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§
or
or
or
or
Thiazolidine-dione
+ SU
DPP-4-i
GLP-1-RA
Insulin§
TZD
DPP-4-i
or
or
or
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 +
or
or
or
or
SGLT2-i
or
or
or
SGLT2-i
Mono- therapy
Efficacy* Hypo risk
Weight
Side effects
Costs
Dual therapy†
Efficacy* Hypo risk
Weight
Side effects
Costs
Triple therapy
or
or
DPP-4 Inhibitor
+ SU
TZD
Insulin§
SGLT2-i
or
or
or
SGLT2-i
or
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. Anti-hyperglycemic therapy in T2DM: General recommendations Diabetes Care 2015;38:140-149; Diabetologia 2015;58:429-442
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§
or
or
or
or
Thiazolidine-dione
+ SU
DPP-4-i
GLP-1-RA
Insulin§
TZD
DPP-4-i
or
or
or
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 +
or
or
or
or
SGLT2-i
or
or
or
SGLT2-i
Mono- therapy
Efficacy* Hypo risk
Weight
Side effects
Costs
Dual therapy†
Efficacy* Hypo risk
Weight
Side effects
Costs
Triple therapy
or
or
DPP-4 Inhibitor
+ SU
TZD
Insulin§
SGLT2-i
or
or
or
SGLT2-i
or
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. Anti-hyperglycemic therapy in T2DM: General recommendations Diabetes Care 2015;38:140-149; Diabetologia 2015;58:429-442
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§
or
or
or
or
Thiazolidine-dione
+ SU
DPP-4-i
GLP-1-RA
Insulin§
TZD
DPP-4-i
or
or
or
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 +
or
or
or
or
SGLT2-i
or
or
or
SGLT2-i
Mono- therapy
Efficacy* Hypo risk
Weight
Side effects
Costs
Dual therapy†
Efficacy* Hypo risk
Weight
Side effects
Costs
Triple therapy
or
or
DPP-4 Inhibitor
+ SU
TZD
Insulin§
SGLT2-i
or
or
or
SGLT2-i
or
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. Anti-hyperglycemic therapy in T2DM: General recommendations Diabetes Care 2015;38:140-149; Diabetologia 2015;58:429-442
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§
or
or
or
or
Thiazolidine-dione
+ SU
DPP-4-i
GLP-1-RA
Insulin§
TZD
DPP-4-i
or
or
or
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 +
or
or
or
or
SGLT2-i
or
or
or
SGLT2-i
Mono- therapy
Efficacy* Hypo risk
Weight
Side effects
Costs
Dual therapy†
Efficacy* Hypo risk
Weight
Side effects
Costs
Triple therapy
or
or
DPP-4 Inhibitor
+ SU
TZD
Insulin§
SGLT2-i
or
or
or
SGLT2-i
or
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;58:429-442
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§
or
or
or
or
Thiazolidine-dione
+ SU
DPP-4-i
GLP-1-RA
Insulin§
TZD
DPP-4-i
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 +
or
or
or
or
SGLT2-i
or
or
or
SGLT2-i
Mono- therapy
Efficacy* Hypo risk
Weight
Side effects
Costs
Dual therapy†
Efficacy* Hypo risk
Weight
Side effects
Costs
Triple therapy
or
or
DPP-4 Inhibitor
+ SU
TZD
Insulin§
SGLT2-i
or
or
or
SGLT2-i
or
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
or
or
or
Insulin (basal)
+
Figure 2A. Anti-hyperglycemic therapy in T2DM: Avoidance of hypoglycemia Diabetes Care 2015;38:140-149; Diabetologia 2015;58:429-442
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§
or
or
or
or
Thiazolidine-dione
+ SU
DPP-4-i
GLP-1-RA
Insulin§
TZD
DPP-4-i
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 +
or
or
or
or
SGLT2-i
or
or
or
SGLT2-i
Mono- therapy
Efficacy* Hypo risk
Weight
Side effects
Costs
Dual therapy†
Efficacy* Hypo risk
Weight
Side effects
Costs
Triple therapy
or
or
DPP-4 Inhibitor
+ SU
TZD
Insulin§
SGLT2-i
or
or
or
SGLT2-i
or
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)
+
or
or
or
Diabetes Care 2015;38:140-149; Diabetologia 2015;58:429-442
Figure 2B. Anti-hyperglycemic therapy in T2DM: Avoidance of weight gain
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§
or
or
or
or
Thiazolidine-dione
+ SU
DPP-4-i
GLP-1-RA
Insulin§
TZD
DPP-4-i
or
or
or
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 +
or
or
or
or
SGLT2-i
or
or
or
SGLT2-i
Mono- therapy
Efficacy* Hypo risk
Weight
Side effects
Costs
Dual therapy†
Efficacy* Hypo risk
Weight
Side effects
Costs
Triple therapy
or
or
DPP-4 Inhibitor
+ SU
TZD
Insulin§
SGLT2-i
or
or
or
SGLT2-i
or
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 2C. Anti-hyperglycemic therapy in T2DM: Minimization of costs Diabetes Care 2015;38:140-149; Diabetologia 2015;58:429-442
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§
or
or
or
or
Thiazolidine-dione
+ SU
DPP-4-i
GLP-1-RA
Insulin§
TZD
DPP-4-i
or
or
or
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 +
or
or
or
or
SGLT2-i
or
or
or
SGLT2-i
Mono- therapy
Efficacy* Hypo risk
Weight
Side effects
Costs
Dual therapy†
Efficacy* Hypo risk
Weight
Side effects
Costs
Triple therapy
or
or
DPP-4 Inhibitor
+ SU
TZD
Insulin§
SGLT2-i
or
or
or
SGLT2-i
or
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;58:429-442
2018in type 2 diabetes, established CVD is a compelling indication
for treatment with a GLP-1 receptor agonist or SGLT2
inhibitor;
in patients with HF, SGLT2 inhibitors are recommended
The 2008 FDA Revolution
38
FDA requirements for CV outcome for new
antidiabetic agents
39
2013 2014 2015 2016 2017 2018 2019 2020
SGLT2i
GLP-1
DPP-4
Source: ClinicalTrials.gov. ‘Completion date’ is the estimated completion date for the primary outcomes measure. *Also known as C-SCADE-8.
TECOS(Sitagliptin, DPP-4i)
n=14,671; follow-up ~3 yrsQ1 2015 - RESULTS
CARMELINA(Linagliptin, DPP-4i)
n= 8,300; duration ~4 yrs completion Q1 2018
CAROLINA(Linagliptin, DPP-4i vs SU)n= 6,000; duration ~8 yrs
be considered in patients with T2D without established CVD, but with indicators of high risk;
Further recommendation for SGLT-2 inhibitors in HF and CKD
Consider initial combination therapy in new-onset T2D
Choosing glucose-lowering medication in those with indicators of high-risk or established atherosclerotic cardiovascular disease (ASCVD), chronic kidney disease (CKD), or heart failure (HF).
Buse JB. et al. Diabetes Care 2020;43:487-493
Come ottimizzare la terapia dl diabete di tipo 2: conclusioni
• L’armamentario terapeutico dei farmaci contro il diabete di tipo 2 si è molto arricchito nel corso degli ultimi 20 anni;
• Il controllo della glicemia rimane l’obiettivo centrale per ridurre il rischio cardiovascolare associato, prima causa di morte nel diabete di tipo 2;
• La normoglicemia deve essere perseguita sin dalle prime fasi di malattia, evitando l’ipoglicemia che rappresenta a propria volta un rischio per morbilità e mortalità;
• Alcuni farmaci (GLP-1 agonisti e SGLT-2 inibitori) hanno dimostrato, in aggiunta alla azione anti-iperglicemizzante, un effetto di protezione cardiovascolare significativo;
• La valutazione del rischio cardiovascolare è oggi incorporata nei criteri alla base delle scelte della terapia anti-diabete
Ottimizzare la terapia del diabete
mellito tipo 2
Grazie
Incontri di formazione e confronto - Seminario ai Medici di Medicina Generale& Scuola di Specializzazione in Medicina Interna, Università vita Salute San Raffaele