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Francesco Giorgino, Francesco Giorgino, M.DM.D, , Ph.D.Ph.D.
InternalInternal Medicine, Medicine, EndocrinologyEndocrinology and and MetabolicMetabolic DiseasesDiseases
DepartmentDepartment of of EmergencyEmergency and and OrganOrgan TransplantationTransplantation
University of Bari University of Bari SchoolSchool of Medicineof Medicine
Treatment Beyond Lifestyle for the Metabolic SyndromeTreatment Beyond Lifestyle for the Metabolic Syndrome
Prefer Existing Therapies (Prefer Existing Therapies (MetforminMetformin, , OrlistatOrlistat, , PPARPPARγγ Agonists)Agonists)
BerlinBerlin
OctoberOctober 27, 200627, 2006
1st World Congress on1st World Congress on
Controversies in Obesity, Diabetes and HypertensionControversies in Obesity, Diabetes and Hypertension
Issues in Pharmacological Prevention/Treatment of Issues in Pharmacological Prevention/Treatment of
the Metabolic Syndromethe Metabolic Syndrome
•• LimitedLimited informationinformation fromfrom studiesstudies on on patientspatients fullfillingfullfilling
diagnosticdiagnostic criteriacriteria forfor the MS the MS ((e.ge.g., 53% of MS in DPP)., 53% of MS in DPP)
•• EffectsEffects on on preventionprevention of of typetype 2 2 diabetesdiabetes vs. vs. otherother
componentscomponents of the MSof the MS
•• DurabilityDurability of of effectseffects
•• Impact on CV Impact on CV riskrisk factorsfactors and and outcomesoutcomes
•• EffectsEffects of of drugsdrugs independentindependent of of lifestylelifestyle changeschanges
StrategiesStrategies toto ImplementImplement PreventionPrevention ProgramsPrograms forfor
TypeType 2 2 DiabetesDiabetes and the and the MetabolicMetabolic SyndromeSyndrome
•• upup--streamstream strategiesstrategies
directeddirected toto the the generalgeneral populationpopulation –– healthhealth policiespolicies aimingaiming at at
promotingpromoting healthierhealthier lifestyleslifestyles;;
•• midmid--streamstream strategiesstrategies
directeddirected toto specificspecific populationpopulation groupsgroups or or communitiescommunities at at riskrisk ––
aimingaiming at at influencinginfluencing the the diseasedisease riskrisk;;
•• downdown--streamstream strategiesstrategies
directeddirected toto individualsindividuals at high at high riskrisk –– aimingaiming at at reducingreducing the the
diseasedisease convertionconvertion rate through rate through lifestylelifestyle changeschanges ((dietdiet and/or and/or
physicalphysical exerciseexercise) or ) or useuse of of drugsdrugs..
Therapies Potentially Useful to Prevent Type 2 Diabetes (and the Metabolic Syndrome)
•• LifestyleLifestyle changeschanges dietdiet,, physicalphysical activityactivity
•• InsulinInsulin sensitizerssensitizers metforminmetformin, , TZDsTZDs
•• OtherOther OHAsOHAs acarboseacarbose, , SUSU, , glinidesglinides, , insulininsulin, GLP, GLP--11
•• AntiAnti--obesityobesity drugsdrugs orlistatorlistat, , sibutraminesibutramine, , rimonabantrimonabant
•• LipidLipid--loweringlowering drugsdrugs statinsstatins, , fibratesfibrates, , ωω--33
•• AntiAnti--hypertensivehypertensive drugsdrugs ACEACE--inhibitorsinhibitors, ARB, ARB
•• OtherOther drugsdrugs ERTERT
StudiesStudies of of LifestyleLifestyle InterventionIntervention toto Reduce T2 DM Reduce T2 DM IncidenceIncidence
TrialTrial
DPPDPP
DPSDPS
Da Da QingQing
NN
21612161
522522
577577
FollowFollow--upup
YearsYears
2.82.8
3.23.2
66
ReductionReduction
--58%58%
--58%58%
--3131--46%46%
WeightWeight
LossLoss
--55.6.6 kgkg
--44.2.2 kgkg
--00.9.9 kg/mkg/m22
PopulationPopulation
≥≥ 25 25 yearsyears
BMI ≥BMI ≥ 24 kg/m24 kg/m22
IGTIGT
4040--65 65 yearsyears
BMI BMI ≥≥ 25 kg/m25 kg/m22
IGTIGT
> 25 > 25 yearsyears
IGTIGT
AbsoluteAbsolute RiskRisk
Placebo / Placebo / InterventionIntervention
11.0% per 11.0% per yearyear
4.8% per 4.8% per yearyear
7.8% per 7.8% per yearyear
3.2% per3.2% per yearyear
7.8% per 7.8% per yearyear
4.6% per 4.6% per yearyear
Effects of Various Therapeutic Interventions on Effects of Various Therapeutic Interventions on
Components of the Metabolic SyndromeComponents of the Metabolic Syndrome
+
B.P.B.P.
+++±++Weight ControlWeight Control
Physical ExercisePhysical Exercise
CV SystemCV System
InflammationInflammationWeightWeight
LossLoss
LipidsLipidsT2DM T2DM
PreventionPrevention
StudiesStudies of of OralOral DrugsDrugs toto Reduce T2 DM Reduce T2 DM IncidenceIncidence
TrialTrial
DPPDPP
STOPSTOP--NIDDMNIDDM
SartorSartor GG
NN
21552155
14291429
9797
AgentAgent
MetforminMetformin
1700 mg1700 mg
AcarboseAcarbose
300 mg300 mg
TolbutamideTolbutamide
1500 mg1500 mg
FollowFollow--upup
YearsYears
2.82.8
3.33.3
99--1010
ReductionReduction
--31%31%
--25%25%
--18%18%
PopulationPopulation
≥≥ 25 25 yearsyears
BMI BMI ≥≥ 24, IGT24, IGT
4040--70 years70 years
BMI 25BMI 25--40, IGT40, IGT
43 43 yearsyears
IGTIGT
00
44
88
1212
2525--44 (n=1000)44 (n=1000) 4545--59 (n=1586)59 (n=1586) ≥≥ 60 (n=648)60 (n=648)
Cases
Cases/100
/100 person
person-- yryr
LifestyleLifestyleMetforminMetformin
Diabetes Incidence Rates by AgeDiabetes Incidence Rates by Age
Age (years)Age (years)The DPP Research Group, The DPP Research Group, NEJMNEJM, 2002, 2002
PlaceboPlacebo
Diabetes Incidence Rates by BMIDiabetes Incidence Rates by BMI
The DPP Research Group, The DPP Research Group, NEJMNEJM, 2002, 2002 BMI (kg/mBMI (kg/m22))
00
44
88
1212
1616
24 24 –– 29.929.9 30 30 –– 34.934.9 ≥≥ 3535
Cases
Cases/100
/100 person
person-- yryr
LifestyleLifestyleMetforminMetformin
(n=1194)(n=1194)(n=1045)(n=1045) (n=995)(n=995)
PlaceboPlacebo
EffectsEffects of of MetforminMetformin and and LyfestyleLyfestyle InterventionsInterventions on on FastingFasting
and and PostPost--LoadLoad GlucoseGlucose LevelsLevels
00
2020
4040
6060
8080
11
100100
00
2020
4040
6060
8080
PlaceboPlacebo MetforminMetformin LifestyleLifestyle
100100
DPP DPP ResearchResearch GroupGroup, , N N EnglEngl J J MedMed , , 20022002
Participants
ParticipantswithwithNormal
NormalPlasma
Plasma Glucose
Glucose(%)
(%) FastingFasting GlucoseGlucose
PostPost--LoadLoad GlucoseGlucose
22 33 44YearYear
11 22 33 44
P<0.001P<0.001
EffectEffect of of WithdrawalWithdrawal fromfrom MetforminMetformin on the on the
DevelopmentDevelopment of of DiabetesDiabetes in the DPPin the DPP
DPP DPP ResearchResearch GroupGroup, , DiabetesDiabetes Care,Care, 20032003
prewashoutprewashout washoutwashout
00
FastingFasting FastingFasting 22--HourHour
Plasma
Plasma Glucose
Glucose(mg/dl)
(mg/dl)
4040
8080
120120
160160
2020
6060
100100
140140
180180
22--HourHour
PlaceboPlaceboMetforminMetformin
DiabetesDiabetes OddsOdds 95% CI95% CI
DiagnosisDiagnosis RatioRatio
PriorPrior toto washoutwashout 0.66*0.66* 0.540.54--0.820.82
At At washoutwashout 1.491.49 0.930.93--2.382.38
OverallOverall 0.75*0.75* 0.620.62--0.920.92
“… a “… a significantsignificant proportionproportion of the of the abilityability ofof
meforminmeformin toto preventprevent diabetesdiabetes can can bebe
accountedaccounted forfor byby a a pharmacologicalpharmacological effecteffect
of the of the drugdrug thatthat diddid notnot persistpersist whenwhen itit
waswas stoppedstopped.”.”
MetforminMetformin
↓↓ ACCACC
↑↑ FA OxidationFA Oxidation
↓↓ FA & VLDL SynthesisFA & VLDL Synthesis
LiverLiver
↑↑ LiverLiver
Insulin SensitivityInsulin Sensitivity
↓↓ Plasma GlucosePlasma Glucose
((↓↓ Triglycerides)Triglycerides)ShawShaw RJ RJ etet al, al, ScienceScience, 2005, 2005
AMPKAMPK
LKB1LKB1
↓↓ GlucoseGlucose
ProductionProduction
↓↓ PGCPGC--11αα
The DPP Research Group, The DPP Research Group, NEJMNEJM, 2002, 2002
WeightWeight ChangesChanges in the DPPin the DPP
%
% Hypertension
Hypertension
PlaceboPlacebo MetforminMetformin LifestyleLifestyleBaselineBaseline 11
1.21.2
1.41.4
1.61.6
1.81.8
2.02.0
Triglycerides
Triglycerides(mM)
(mM)
11
1.11.1
1.21.2
1.31.3
PlaceboPlacebo MetforminMetformin LifestyleLifestyle
PlaceboPlacebo MetforminMetformin LifestyleLifestyle
HDL (
HDL ( mMl
mMl ))
% LDL
% LDL phenotype
phenotypeBB
PlaceboPlacebo MetforminMetformin LifestyleLifestyle
p < 0.001p < 0.001
3 3 yearsyears
p < 0.001p < 0.001
p = p = nsns p < 0.001p < 0.001
00
1010
2020
3030
4040
5050
00
1010
2020
3030
4040
5050
DPP DPP ResearchResearch GroupGroup, , DiabetesDiabetes Care,Care, 20052005
Impact of Intensive Impact of Intensive LifestyleLifestyle and Metformin and Metformin TherapyTherapy on on
CardiovascularCardiovascular DiseaseDisease RiskRisk FactorsFactors
p p representsrepresents the the pairwisepairwise comparisoncomparison fromfrom generalizedgeneralized estimatingestimating equationequation modelsmodels
Intensive Intensive LifestyleLifestyle InterventionIntervention or or MetforminMetformin
on CRP on CRP LevelsLevels in the DPPin the DPP
00
2020
4040
6060
--2020
--4040
--6060
00
2020
4040
6060
--2020
--4040
--6060
MalesMales
FemalesFemales
PlaceboPlacebo MetforminMetformin LifestyleLifestyle
0.50.5 11 0.50.5 11 0.50.5 11
Perc
ent
Perc
entchange
change
in C
RP
in
CR
P fro
mfr
om
base
line
base
line
YearYear fromfrom randomizationrandomization
DPP DPP ResearchResearch GroupGroup, , DiabetesDiabetes,, 20052005
IncidenceIncidence of of TypeType 2 2 DiabetesDiabetes and of the and of the MetabolicMetabolic
SyndromeSyndrome in the DPPin the DPP
Cumulative
Cumulative Incidence
Incidence
of
of Diabetes
Diabetes(%)
(%)
00
1010
2020
3030
4040LifestyleLifestyle
MetforminMetformin
PlaceboPlacebo
Cumulative
Cumulative Incidence
Incidence
of
of Metabolic
MetabolicSyndrome
Syndrome(%)
(%)
00
1515
3030
4545
6060
7575
OrchardOrchard TJ TJ etet al., al., AnnAnn InternIntern MedMed,, 20052005DPP DPP ReserchReserch GroupGroup, , N N EnglEngl J J MedMed,, 20022002
LifestyleLifestyle
MetforminMetformin
PlaceboPlacebo
New New CasesCases of of TypeType 2 2 DiabetesDiabetes New New CasesCases of of MetabolicMetabolic SyndromeSyndrome
260/490 236/503 201/530260/490 236/503 201/530333/1082 234/1073 145/1079333/1082 234/1073 145/1079
Effects of Various Therapeutic Interventions on Effects of Various Therapeutic Interventions on
Components of the Metabolic SyndromeComponents of the Metabolic Syndrome
-
+
B.P.B.P.
±±±±+±±±±+MetforminMetformin
++++++Weight ControlWeight Control
Physical ExercisePhysical Exercise
CV SystemCV System
InflammationInflammationWeightWeight
LossLoss
LipidsLipidsT2DM T2DM
PreventionPrevention
TrialTrial
XENDOSXENDOS
HeymsfieldHeymsfield etet al.al.
AgentAgent
OrlistatOrlistat
360 mg360 mg
OrlistatOrlistat
360 mg360 mg
FollowFollow--upup
YearsYears
4.04.0
2.02.0
ReductionReduction
--37%37%
--75%75%
PopulationPopulation
3030--60 60 yearsyears
obeseobese
44 44 yearsyears
obeseobese
NN
33053305
642642
StudiesStudies of of AntiAnti--ObesityObesity AgentsAgents toto Reduce T2 DM Reduce T2 DM IncidenceIncidence
Change
Changein body
in body weight
weight (kg)
(kg)
--1212
00
--33
--66
--99
00 5252 104104 156156 208208
p<0.001p<0.001
Placebo + Placebo + lifestylelifestyle -- IGTIGT
OrlistatOrlistat + + lifestylelifestyle -- IGTIGT
OrlistatOrlistat + + lifestylelifestyle -- AllAll
Cumulative
Cumulative incidence
incidence
of
of diabetes
diabetes(%)
(%)
00
55
1010
1515
2020
2525
3030
52522626 7878 104104 130130 156156 182182 208208
--45%45%
--37.3%37.3%
p=0.0024p=0.0024
p=0.0032p=0.0032
Placebo + Placebo + lifestylelifestyle
OrlistatOrlistat + + lifestylelifestyle
WeekWeek
WeekWeek00
EffectsEffects of of OrlistatOrlistat on on DiabetesDiabetes IncidenceIncidence
TorgersonTorgerson JS JS etet al, al, DiabetesDiabetes CareCare, 2004, 2004
Placebo + Placebo + lifestylelifestyle -- AllAll
Effects of Various Therapeutic Interventions on Effects of Various Therapeutic Interventions on
Components of the Metabolic SyndromeComponents of the Metabolic Syndrome
±±±±+-±±±±+MetforminMetformin
±±±±
+
B.P.B.P.
?++++OrlistatOrlistat
++++++Weight ControlWeight Control
Physical ExercisePhysical Exercise
CV SystemCV System
InflammationInflammationWeightWeight
LossLoss
LipidsLipidsT2DM T2DM
PreventionPrevention
StudiesStudies of of TZDsTZDs toto Reduce T2 DM Reduce T2 DM IncidenceIncidence
TrialTrial
TRIPODTRIPOD
DPPDPP
DREAMDREAM
AgentAgent
TroglitazoneTroglitazone
400 mg 400 mg �� PioPio
TroglitazoneTroglitazone
400 mg400 mg
RosiglitazoneRosiglitazone8 mg8 mg
FollowFollow--upupYearsYears
2.52.5
33
33
ReductionReduction
--65%65%
--89%89%
--60%60%
PopulationPopulation
HispanicHispanic ♀♀♀♀♀♀♀♀GDM GDM historyhistory
≥ 25 ≥ 25 yearsyears
BMI > 24, IGTBMI > 24, IGT
≥≥ 30 30 yearsyearsIGT/IFGIGT/IFG
AbsoluteAbsolute riskriskPlacebo / Placebo / InterventionIntervention
12.1% per 12.1% per yearyear
5.4% per 5.4% per yearyear
26.8% over 3 26.8% over 3 yearsyears
2.9% over 3 2.9% over 3 yearsyears
26.0% over 3 26.0% over 3 yearsyears11.6% over 3 11.6% over 3 yearsyears
DREAM StudyDREAM Study
Baseline CharacteristicsBaseline Characteristics
57.957.957.157.157.357.357.757.757.5%57.5%IIGT (%)IIGT (%)
14.014.014.014.014.114.114.014.014.0%14.0%IIFG (%)IIFG (%)
28.128.128.928.928.628.628.428.428.5%28.5%IGT + IFG (%)IGT + IFG (%)
54.854.854.654.654.754.754.754.754.754.7AgeAge
26.8%26.8%
44.6%44.6%
43.5%43.5%
52695269
OverallOverall
45.345.343.943.945.145.144.244.2SmokingSmoking
27.227.226.426.426.526.527.127.1SedentarySedentary
26342634263526352646264626232623NN
43.743.7
PlacPlac
43.343.3
RamiRami
Hypertension Hypertension 44.044.0
RosiRosi
43.043.0
PlacPlac
30.930.9 30.930.930.930.9BMI (kg/mBMI (kg/m22)) 30.830.8 31.031.0
DREAMDREAM
Primary Outcome: Primary Outcome: RosiglitazoneRosiglitazone
HR = 0.40 (0.35HR = 0.40 (0.35--0.46); P<0.00010.46); P<0.0001
YearYear
PlaceboPlacebo
13101310
11481148
217217241424142538253826352635RosiglitaRosiglita
177177215021502470247026342634PlaceboPlacebo
Cu
mu
lative
C
um
ula
tive
Ha
za
rdH
aza
rd
0.0
0.0
0.1
0.1
0.2
0.2
0.3
0.3
0.4
0.4
0.5
0.5
0.6
0.6
00 11 22 33 44
RosiglitazoneRosiglitazone
RosiglitazoneRosiglitazone
PlaceboPlacebo
Weight (Kg)Weight (Kg)
RosiglitazoneRosiglitazone & Weight, Waist, Hip& Weight, Waist, Hip
0.170.17
--0.090.09
PlaceboPlacebo
<0.0001<0.0001
<0.0001<0.0001
pp
0.840.84Hip (cm)Hip (cm)
0.670.67Weight (kg)Weight (kg)
Rosiglitazone Rosiglitazone Change/yr (Slope)Change/yr (Slope)
P < 0.0001P < 0.00018282
8484
8686
8888
9090
00 11 22 33 44 55YearYear
95
99
103
107
111
115
0 1 2 3 4 5Year
P<0.0001P<0.0001
P=NSP=NS
HipHip (cm)(cm)
WaistWaist (cm)(cm)
I. Blot: antiI. Blot: anti--AktAkt
AktAkt
66 303000Time (Time (minmin)) 66 303000
Akt Protein Content and ActivationAkt Protein Content and Activation
in Human Adipose Tissuein Human Adipose Tissue
Arbitrary
ArbitraryUnits
Units
00
5050
100100
150150
200200
250250
SCSC OO
Total AktTotal Akt
SCSCOO
I. Blot: antiI. Blot: anti--PhPh--Akt (Ser473)Akt (Ser473)
SCSC OO
66 303000Time (Time (minmin)) 66 303000
PhPh--AktAkt
66 303000 66 303000Time (Time (minmin))00
40004000* #* #
Arbitrary
ArbitraryUnits
Units
10001000
20002000
30003000
**
**
** p p < 0.05 < 0.05 vsvs 0 0 minmin ((11--way ANOVAway ANOVA))
## pp < 0.05 < 0.05 vsvs SCSC ((t testt test))
PhosphoPhospho--Akt (Ser473)Akt (Ser473)
LaviolaLaviola L L etet al, al, DiabetesDiabetes, 2006, 2006
ResistinResistin7575
5050
4545
3030
1515
00
##
PAIPAI--111212
99
66
33
00
AdiponectinAdiponectin
00
22
44
66
88
1010
SCSC VV
##
DifferentialDifferential ResponsesResponses of of VisceralVisceral andand
SubcutaneousSubcutaneous FatFat DepotsDepots toto NutrientsNutrients
SCSC VV SCSC VV
ILIL--66
00
11
22
33
44
55
SCSC VV
LeptinLeptin
##
00
11
22
33
44
55
66
SCSC VV00
22
44
66
88
TNFTNF--αα
****
**
*#*#
**
*#*#
**
**
*#*#
**
**
*#*#
**
SCSC VV
SalineSaline GlucoseGlucose InsulinInsulin
Einstein et al, Einstein et al, DiabetesDiabetes, , 20052005
0.2 0.4 0.6 0.8 1.0 1.2
Weight<75kg
75-91
91+
BMI<28
28-32
33+
WHR<0.87
0.87-0.94
0.94+
Waist<91.5
91.5-103
103+
Hip<103
103-112
112+Hip 113+ cm
Hip 103-112 cm
Hip < 103 cm
Waist 104+ cm
Waist 91.5-103
Waist < 91.5 cm
WHR 0.95+
WHR 0.81-.94
WHR <0.81
BMI 33+kg/m2
BMI 28-32kg/m2
BMI < 28 kg/m2
Weight 92+ Kg
Weight 75-91 kg
Weight <75 kg
RosiglitazonePlacebo(%/yr)(%/yr)
9.7
8.7
7.2
10.8
8.7
6.1
10.4
9.1
6.2
10.2
8.6
6.5
10.8
8.2
6.4
3.9
3.4
4.1
3.6
3.9
3.9
4.0
3.7
3.7
3.7
3.3
4.2
3.8
3.8
3.8
0.03
0.0002
0.009
0.0004
0.002
RosiglitazoneRosiglitazone Subgroups: PrimarySubgroups: PrimaryP (Heterogeneity)P (Heterogeneity)Overall Overall
FavoursFavours RosiglitazoneRosiglitazone FavoursFavours PlaceboPlacebo
TZDsTZDs
PPARPPARγγ
FatFat
LehrkeLehrke M & M & LazarLazar MA, MA, CellCell, 2005, 2005
↑↑ LPL, FATP, CD36LPL, FATP, CD36
Glycerol Kinase, Aq7Glycerol Kinase, Aq7
↑↑ FFA uptake, FFA uptake,
clearance & recyclingclearance & recyclingPGCPGC--11α,α,mitochondrial mitochondrial
biogenesisbiogenesis
↑↑ FA OxidationFA Oxidation
↑↑ AdiponectinAdiponectin
↓↓ TNFTNF--αα, IL, IL--66
↓↓ Plasma GlucosePlasma Glucose
((↓↓ Triglycerides)Triglycerides)
↑↑ Systemic Systemic
Insulin SensitivityInsulin Sensitivity
12
612
612
812
813
013
013
213
213
413
413
613
613
813
8
SystolicSystolic BPBP
DiastolicDiastolic BPBP
RosiRosi
PlaceboPlacebo
<0.0001<0.000179.8 (10.5)79.8 (10.5)78.4 (10.7)78.4 (10.7)DiastolicDiastolic BP (mm)BP (mm)
0.00010.0001131.1 (17.5)131.1 (17.5)129.4 (17.0)129.4 (17.0)SystolicSystolic BP (mm)BP (mm)
PPPlaceboPlaceboRosiglitazoneRosiglitazoneMeanMean FinalFinal
<0.0001<0.000179.8 (10.5)79.8 (10.5)78.4 (10.7)78.4 (10.7)DiastolicDiastolic BP (mm)BP (mm)
0.00010.0001131.1 (17.5)131.1 (17.5)129.4 (17.0)129.4 (17.0)SystolicSystolic BP (mm)BP (mm)
PPPlaceboPlaceboRosiglitazoneRosiglitazoneMeanMean FinalFinal
76
76
78
78
80
80
82
82
84
84
86
86
BaseBase 22 66 1212 2424 36,36, 4848 EUFEUFBaseBase 2 6 2 6 1212 2424 3636 4848 FinalFinal
P=0P=0.0001.0001
P<0.0001P<0.0001
RosiglitazoneRosiglitazone EffectsEffects on on BloodBlood PressurePressure
Effects of Effects of PioglitazonePioglitazone and and RosiglitazoneRosiglitazone
on Lipids in Type 2 Diabeteson Lipids in Type 2 Diabetes
ChiquetteChiquette E. et al, E. et al, Arch Intern Med, Arch Intern Med, 20042004
•• MetaMeta--analysisanalysis ofof 2323 randomizedrandomized controlledcontrolled trialstrials of of pioglitazonepioglitazone and and
rosiglitazonerosiglitazone in in patientspatients withwith T2DMT2DM
•• PrimaryPrimary analysisanalysis waswas toto compare compare TZDsTZDs withwith placeboplacebo
•• SecondarySecondary analysisanalysis waswas toto identifyidentify whetherwhether treatment treatment withwith pioglitazonepioglitazone
differeddiffered fromfrom rosiglitazonerosiglitazone in in anyany outcomesoutcomes
PioglitazonePioglitazone
RosiglitazoneRosiglitazone
LDLLDL--CC TrygliceridesTryglicerides HDLHDL--CC TotalTotal--CC
--29.7629.76 29.7629.76
--0.370.37
15.2815.28
--123.57123.57 123.57123.57
--39.7139.71
--1.061.06
4.554.55
--10.3910.39 10.3910.39
2.712.71
--39.4639.46 39.4639.46
--0.090.09
21.321.3
mg/mg/dLdL
Thiazolidinediones Effects on CV Risk FactorsThiazolidinediones Effects on CV Risk Factors
•• LipidsLipids ↓↓ triglyceride (pioglitazone), triglyceride (pioglitazone), ↑↑ HDLHDL--C and LDLC and LDL--CC↓↓ LDL oxidation, LDL oxidation, ↑↑ LDL sizeLDL size
•• HemostasisHemostasis ↓↓ PAIPAI--1 and fibrinogen1 and fibrinogen
•• InflammationInflammation ↓↓ PCR, ILPCR, IL--6 and sCD40L6 and sCD40L
•• MicroalbuminuriaMicroalbuminuria ↓↓ AERAER
•• Direct CV effectsDirect CV effects ↓↓ IMT, IMT, ↓↓ BPBPmacrophage modulation, macrophage modulation, ↓↓ VSMC proliferationVSMC proliferation↓↓ CaCa++++ flux flux �� ↑↑ arterial vasodilationarterial vasodilation
PPARPPARγ γ –– Mechanism of ActionMechanism of ActionTranscriptional transrepressionTranscriptional transrepression
NFNF--κκBB--RERE APAP--11--RERE STATSTAT--RERE NFATNFAT--RERE
NF-κB AP-1 STAT NFAT
DNADNA
PPARγγγγ
SUMOSUMO--11
83.883.8
64.864.8
50.150.1
-- ++ -- ++
w.t.w.t. KK107107AA
kDakDa
PPARPPARγγ--SUMOSUMO--11
PPARPPARγγ
Melchiorre M Melchiorre M etet al, al, submittedsubmitted
Effects of Various Therapeutic Interventions on Effects of Various Therapeutic Interventions on
Components of the Metabolic SyndromeComponents of the Metabolic Syndrome
?++-++OrlistatOrlistat
±±±±+-±±±±+MetforminMetformin
+
+
B.P.B.P.
+Weight gain
& Fat
redistribution
+++TZDsTZDs
++++++Weight ControlWeight Control
Physical ExercisePhysical Exercise
CV SystemCV System
InflammationInflammationWeightWeight
LossLoss
LipidsLipidsT2DM T2DM
PreventionPrevention
Effects of Effects of TZDsTZDs and and MetforminMetformin
on CV Risk Factors/Markerson CV Risk Factors/Markers
11Freed MI, Freed MI, et alet al. . Am J Am J CardiolCardiol 2002; 90:9472002; 90:947––952. 952. 22Chu NV, Chu NV, et al. Diabetes Careet al. Diabetes Care 2002; 25:5422002; 25:542––549.549. 33DeFronzo RA. DeFronzo RA. Ann Ann IntInt MedMed 1999; 131:2811999; 131:281––303. 303. 44Viberti GC. Viberti GC. IntInt J J ClinClin PractPract 2003; 57:1282003; 57:128––134. 134. 55Kirpichnikov D, Kirpichnikov D, et al. Ann et al. Ann IntInt MedMed 2002; 137:252002; 137:25––33.33.
66Mather KJ, Mather KJ, et al.et al. J Am J Am CollColl CardiolCardiol 2001; 37:13442001; 37:1344––1350. 1350. 77BakrisBakris G, G, et alet al. . J Hum J Hum HypertensHypertens 2003; 17:72003; 17:7––12.12.8 8 UK Prospective Diabetes Study (UKPDS) Group. UK Prospective Diabetes Study (UKPDS) Group. Lancet Lancet 1998; 352:8541998; 352:854––865. 865.
99Lebovitz HE, Lebovitz HE, et al.et al. J J ClinClin EndocrinolEndocrinol MetabMetab 2001; 86:2802001; 86:280––288. 288. 1010GlaxoSmithKline. GlaxoSmithKline. AvandiaAvandia prescribing information, 2003prescribing information, 2003..
TZDsTZDs MetforminMetformin
SmallSmall/dense LDL /dense LDL 1,21,2 ↓↓↓↓↓↓↓↓ ↔↔↔↔↔↔↔↔
LDLLDL--cholesterolcholesterol 33 ↑↑↑↑↑↑↑↑ +/+/-- or or ↓↓↓↓↓↓↓↓
HDLHDL--cholesterolcholesterol 33 ↑↑↑↑↑↑↑↑ ↑↑↑↑↑↑↑↑ +/+/-- or or ↑↑↑↑↑↑↑↑
TriglyceridesTriglycerides 33 ↓↓↓↓↓↓↓↓ or or ↔↔↔↔↔↔↔↔ ↓↓↓↓↓↓↓↓
FreeFree fattyfatty acidsacids 4,54,5 ↓↓↓↓↓↓↓↓ ↓↓↓↓↓↓↓↓ ↓↓↓↓↓↓↓↓ ↓↓↓↓↓↓↓↓ ↓↓↓↓↓↓↓↓
InsulinInsulin resistanceresistance 4,54,5 ↓↓↓↓↓↓↓↓ ↓↓↓↓↓↓↓↓ ↓↓↓↓↓↓↓↓
BloodBlood pressurepressure 4,54,5 ↓↓↓↓↓↓↓↓ ↔↔↔↔↔↔↔↔
EndothelialEndothelial functionfunction 66 ↑↑↑↑↑↑↑↑ ↑↑↑↑↑↑↑↑ ↔↔↔↔↔↔↔↔
Microalbuminuria Microalbuminuria 7,87,8 ↓↓↓↓↓↓↓↓ ↔↔↔↔↔↔↔↔
PAIPAI--1 1 2,42,4 ↓↓↓↓↓↓↓↓ or or ↓↓↓↓↓↓↓↓ ↓↓↓↓↓↓↓↓ ↓↓↓↓↓↓↓↓ or or ↔↔↔↔↔↔↔↔
CRP CRP 2,42,4 ↓↓↓↓↓↓↓↓ ↓↓↓↓↓↓↓↓ ↓↓↓↓↓↓↓↓
PotentialPotential on on ββ--cellcell 9,39,3 ↑↑↑↑↑↑↑↑ ↔↔↔↔↔↔↔↔
AdverseAdverse effectseffects 9,39,3 WtWt gain, gain, fluidfluid GI, GI, lacticlactic acidacid
Males Females
Ris
k f
or
Dia
gn
osis
of
Dia
bete
s,
%
55
100
NarayanNarayan KMV et al, JAMA, 2003 KMV et al, JAMA, 2003
Cumulative Lifetime Risk for Diagnosis of Diabetes
If an individual is diagnosed at age 40 years, men will lose 11.If an individual is diagnosed at age 40 years, men will lose 11.6 life6 life--years and 18.6 qualityyears and 18.6 quality--adjusted lifeadjusted life--
years and women will lose 14.3 lifeyears and women will lose 14.3 life--years and 22.0 qualityyears and 22.0 quality--adjusted lifeadjusted life--yearsyears
50
45
40
35
30
25
20
15
10
5
0
55
50
45
40
35
30
25
20
15
10
5
0
9080706050403020100 1009080706050403020100
RiskRisk of of TypeType 2 2 DiabetesDiabetes AccordingAccording toto TertilesTertiles ofof
BaselineBaseline InsulinInsulin SensitivitySensitivity and and BaselineBaseline InsulinInsulin
SecretionSecretion in the DPPin the DPP
InsulinInsulin SensitivitySensitivity (1/FL)(1/FL)
InsulinInsulin SecretionSecretion (IGR)(IGR)
LowLowMediumMedium
HighHigh
00
55
1010
1515
2020
2525
3030
LowLowMediumMediumHighHigh
LowLowMediumMedium
HighHighLowLow
MediumMediumHighHigh
Diabetes
Diabeteshazard
hazardrate
rate
(per 100
(per 100 pyrpyr ))
DPP DPP ResearchResearch GroupGroup, , DiabetesDiabetes,, 20052005
PlaceboPlacebo
MetforminMetformin
LifestyleLifestyle
PlaceboPlacebo TroglitazoneTroglitazone
Cumulative
Cumulative Incidence
Incidenceof
of Diabetes
Diabetes(%)
(%)
00
55
1010
1515
2020
2525
PlaceboPlacebo TroglitazoneTroglitazone
8 8 MonthsMonths aafter fter TxTx SospensionSospension
Cumulative
Cumulative Incidence
Incidenceof
of
Diabetes
Diabetes(%) in
(%) in NonNon-- progressor
progressor
After After TxTx forfor 12 12 MonthsMonths
00
22
44
66
88
1010
1212
1414
Cumulative Cumulative IncidenceIncidence of of DiabetesDiabetes in the in the TRIPOD TRIPOD StudyStudy
Buchanan TA et al, Buchanan TA et al, DiabetesDiabetes, 2002 , 2002
PlaceboPlacebo
TroglitazoneTroglitazone
TROG TROG discontinueddiscontinued 4 4 JuneJune 1998 1998
JulyJuly 19961996
MayMay 19981998JuneJune 19981998
MayMay 19991999JuneJune 19991999
MayMay 20002000JuneJune 20002000
JulyJuly 20012001
00
33
66
99
1212
Incid
ence
Incid
ence
(( cases
cases /
100
/100 pp
-- yryr ))
YearsYears sincesince 4 4 JuneJune 19981998
EffectEffect of of WithdrawalWithdrawal fromfrom TroglitazoneTroglitazone on the on the
DevelopmentDevelopment of of DiabetesDiabetes in the DPPin the DPP
KeyKey ClinicalClinical
RecommendationRecommendation
A A lifestylelifestyle interventionintervention aimedaimed at at
inducinginducing 5%5%--7% 7% weightweight lossloss can can preventprevent
typetype 2 2 diabetesdiabetes in in subjectssubjects withwith IGTIGT
TZDsTZDs can help can help toto preventprevent typetype 2 2
diabetesdiabetes in in subjectssubjects withwith IGTIGT
MetforminMetformin can help can help toto preventprevent typetype 2 2
diabetesdiabetes, , especiallyespecially in in youngeryounger, ,
more obesemore obese patientspatients withwith IGTIGT
AcarboseAcarbose can help can help toto preventprevent typetype 22
diabetesdiabetes in in subjectssubjects withwith IGTIGT
OrlistatOrlistat can help can help toto preventprevent typetype 22
diabetesdiabetes in in obeseobese patientspatients withwith IGTIGT
CommentComment
RecommendationRecommendation basedbased on on twotwo
largelarge randomizedrandomized clinicalclinical trialstrials
RecommendationRecommendation basedbased on on threethree
largelarge randomizedrandomized clinicalclinical trialstrials
RecommendationRecommendation basedbased on on oneone
largelarge randomizedrandomized clinicalclinical trialtrial
RecommendationRecommendation basedbased on on oneone
randomizedrandomized clinicalclinical trialtrial
RecommendationRecommendation basedbased on on oneone
randomizedrandomized clinicalclinical trial and trial and oneone
metameta--analysisanalysis of of threethree otherother clinicalclinical trialstrials
StrengthStrength ofof
RecommendationRecommendation
AA
AA
BB
BB
BB
StrategiesStrategies ToTo PreventPrevent TypeType 2 2 DiabetesDiabetes
Effetti dell’Acarbosio sull’Incidenza di Eventi CVEffetti dell’Acarbosio sull’Incidenza di Eventi CV
in Pazienti con Alterata Tolleranza Glicidica (IGT)in Pazienti con Alterata Tolleranza Glicidica (IGT)
STOPSTOP--NIDDM TrialNIDDM Trial
Chiasson JL, Chiasson JL, JAMAJAMA 20032003
--49% (RR)49% (RR)
Pl A
IMA 12 1
Angina 12 5
Riv Mioc 20 11
STUDYSTUDY MeanMean ChangeChange (95% CI)(95% CI)
Ebeling 2001Ebeling 2001 1.3 (1.3 (--11.24.24, 3.83), 3.83)
Haffner (4 mg) 2002Haffner (4 mg) 2002 --3.70 (3.70 (--55.90.90, , --11.50.50))
Haffner (8 mg) 2002Haffner (8 mg) 2002 --33.90.90 ((--44.46.46, , --33.34.34))
Kernan 2003Kernan 2003 --00.14.14 ((--11.31.31, 1.03), 1.03)
Satoh 2003Satoh 2003 --0.40 (0.40 (--0.57, 0.57, --00.23.23))
Sidhu 2003Sidhu 2003 --0.19 (0.19 (--0.23, 0.23, --0.15)0.15)
Choi 2004Choi 2004 --2.08 (2.08 (--2.21, 2.21, --1.95)1.95)
Hallsten 2004Hallsten 2004 0.5 (0.03, 1.03)0.5 (0.03, 1.03)
Natali 2004Natali 2004 0.15 (0.15 (--0.03, 0.33)0.03, 0.33)
Sidhu 2004Sidhu 2004 --0.07 (0.07 (--0.11, 0.11, --0.03)0.03)
Sutinen 2004Sutinen 2004 --0.50 (0.50 (--0.83, 0.83, --0.17)0.17)
Wang 2004Wang 2004 --1.09 (1.09 (--1.41, 1.41, --0.77)0.77)
Mattoo 2005Mattoo 2005 --1.47 (1.47 (--3.05, 0.11)3.05, 0.11)
Wang 2005Wang 2005 --0.94 (0.94 (--1.60, 1.60, --0.28)0.28)
Total (95% CI)Total (95% CI) --0.82 (0.82 (--1.15, 1.15, --00.49.49))
Test for overall effect: Test for overall effect: Z=Z= 4.89 (P<0.00001)4.89 (P<0.00001) Test Test forfor heterogeneityheterogeneity: Chi: Chi22=1120=1120.60.60, df=13 (p<0.00001), df=13 (p<0.00001)
MetaMeta--Analysis of Analysis of ThiazolidinedionesThiazolidinediones EffectsEffects
on Serum Con Serum C--Reactive Protein (CRP) LevelsReactive Protein (CRP) Levels
-4 -2 0 2 4
QayyumQayyum R. et al,R. et al, Am J Am J CardiolCardiol 2006; 97, 6552006; 97, 655--658658