The study investigates the addition of ticagrelor to low-dose aspirin in patients with a history of myocardial infarction (MI) to assess its impact on cardiovascular events. Findings indicate that ticagrelor significantly reduces the risk of cardiovascular death, MI, or stroke, while increasing the risk of TIMI major bleeding. Both dosages of ticagrelor displayed comparable efficacy, with the lower dose associated with fewer bleeding incidents.

1. Prevention of Cardiovascular Events
in Patients With Prior Heart Attack Using
Ticagrelor Compared to Placebo on a
Background of Aspirin
Marc S. Sabatine, MD, MPH
on behalf of the PEGASUS-TIMI 54
Executive & Steering Committees and Investigators
NCT00526474

2. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Background
• Current guidelines recommend adding a P2Y12
receptor antagonist to aspirin only for the first year
after an acute coronary syndrome (ACS)
• However, several lines of evidence suggest more
prolonged therapy may be beneficial in Pts w/ prior MI
– Landmark analyses from 1-year ACS trials of P2Y12 antag
– Post-hoc MI subgroup analysis from CHARISMA
• Ticagrelor is a potent, reversibly-binding, direct-
acting P2Y12 antagonist with established efficacy for
the first year after an ACS

3. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Hypothesis
The addition of ticagrelor to standard therapy
(including low-dose aspirin) would reduce the
incidence of major adverse cardiovascular
events during long-term follow-up
in patients with a history of MI

4. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Trial Organization
TIMI Study Group
Eugene Braunwald (Chair) Marc S. Sabatine (PI)
Marc P. Bonaca (Co-PI) Stephen D. Wiviott (CEC Chair)
S Morin & P Fish (Operations) SA Murphy & Kelly Im (Statistics)
Executive Cmte
Eugene Braunwald (Chair) Marc S. Sabatine
Deepak L. Bhatt Marc Cohen
Ph. Gabriel Steg Robert Storey
Sponsor: AstraZeneca
Peter Held Eva Jensen
Per Johanson Ann Maxe Ahlbom
Barbro Boberg Olof Bengtsson
Independent Data Monitoring Cmte
Jeffrey L. Anderson (Chair) Terje R. Pedersen
Freek W.A.Verheugt Harvey D. White
David L. DeMets

5. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Argentina Germany Russia
R. Diaz/E Paolasso C Hamm M Ruda
Australia Hungary S. Africa
P Aylward R Kiss A Dalby
Belgium Italy S. Korea
F Van der Werf D Ardissino K Seung
Brazil Japan Slovakia
J Nicolau S Goto G Kamensky
Bulgaria Netherlands Spain
A Goudev T Oude Ophuis J Lopez-Sendon
Canada Norway Sweden
P Theroux F Kontny M Dellborg
Chile Peru Turkey
R Corbalan F Medina S Guneri
China Philippines UK
D Hu MT Abola R Storey
Colombia Poland Ukraine
D Isaza A Budaj A Parkhomenko
Czech Republic Romania USA
J Spinar D Dimulescu Bonaca/Bhatt/Cohen
France
G Montalescot/PG Steg
Steering Committee

6. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Stable pts with history of MI 1-3 yrs prior
+ ≥1 additional atherothrombosis risk factor
Ticagrelor
90 mg bid
Placebo
RANDOMIZED
DOUBLE BLIND
Follow-up Visits
Q4 mos for 1st yr, then Q6 mos
Planned treatment with ASA 75 – 150 mg/d &
Standard background care
Minimum 1 year follow-up
Event-driven trial
Ticagrelor
60 mg bid
Trial Design
Bonaca MP et al. Am Heart J 2014;167:437-44

7. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Key Inclusion & Exclusion Criteria
KEY INCLUSION
• Age ≥50 years
• At least 1 of the following:
– Age ≥65 years
– Diabetes requiring medication
– 2nd prior MI (>1 year ago)
– Multivessel CAD
– CrCl <60 mL/min
• Tolerating ASA and able to be
dosed at 75-150 mg/d
KEY EXCLUSION
• Planned use of P2Y12 antagonist,
dipyridamole, cilostazol, or anticoag
• Bleeding disorder
• History of ischemic stroke, ICH, CNS
tumor or vascular abnormality
• Recent GI bleed or major surgery
• At risk for bradycardia
• Dialysis or severe liver disease
Bonaca MP et al. Am Heart J 2014;167:437-44

8. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Endpoints
• Efficacy: hierarchical testing
– Primary: cardiovascular (CV) death, MI, or stroke
– Secondary: CV death; all-cause mortality
– Prespecified exploratory: substituting coronary for CV death;
other individual coronary and cerebrovascular ischemic
outcomes; pooling ticagrelor doses
• Safety
– Primary: TIMI Major Bleeding
– Other: intracranial hemorrhage (ICH), fatal bleeding
– AEs/SAEs
• TIMI Clinical Events Committee (CEC)
– Adjudicated all efficacy endpoints & bleeding events
– Members unaware of treatment assignments
Bonaca MP et al. Am Heart J 2014;167:437-44

9. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Poland: 1399
Sweden: 507
Canada:
1306
United States
2601
U.K.: 647
Netherlands: 1560
Belgium: 431
Germany: 924
France: 333
Spain: 535
Czech Rep: 870
Italy: 392
South Africa:
473
Australia: 327
Japan: 903
Hungary: 831
Bulgaria: 447
China: 383
S Korea: 506
Philippines: 250
Colombia: 528
Chile: 322
Argentina: 499
Brazil: 864
Peru: 245
Romania: 404
Slovakia: 475
Russia: 1061
Ukraine: 623
Turkey: 180
Norway: 336
21,162 patients randomized at 1161 sites in 31 countries between 10/2010 – 5/2013
Global Enrollment

10. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Randomized 21,162 patients
Ticagrelor
90 mg bid
(N=7050)
Placebo
(N=7067)
Ticagrelor
60 mg bid
(N=7045)
Follow-Up
Premature perm.
drug discontinuation
12%/yr 11%/yr 8%/yr
Withdrew consent 0.7% total 0.7% total 0.7% total
Lost to follow-up 3 patients 6 patients 1 patient
Follow-up median 33 months (IQR 28-37)
Minimum 16 months, maximum 47 months
Ascertainment for primary endpoint was complete
for 99% of potential patient-years of follow up

11. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Baseline Characteristics
Characteristic Value
Age – yr, mean (SD) 65 (8)
Female 24
Hypertension 78
Hypercholesterolemia 77
Current smoker 17
Diabetes mellitus 32
Estimated GFR <60 mL/min/1.73m2 23
History of PCI 83
Multivessel coronary disease 59
History of more than 1 prior MI 17
No difference between treatment arms.
Values for categorical variables are %.

12. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Baseline Characteristics
Characteristic Value
Qualifying Event
Years from MI – median (IQR) 1.7 (1.2 – 2.3)
History of STEMI 53
History of NSTEMI 41
MI type unknown 6
No difference between treatment arms.
Values for categorical variables are %.
0
10
20
30
40
50
<3 3-4 4-5 5-6 >6
%
of
patients
Years from qualifying MI to end of follow-up

13. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Baseline Characteristics
Characteristic Value
Qualifying Event
Years from MI – median (IQR) 1.7 (1.2 – 2.3)
History of STEMI 53
History of NSTEMI 41
MI type unknown 6
Medications at enrollment
Aspirin (any dose) 99.9
Dose 75-100 mg/d 97.3
Statin 93
Beta-blocker 82
ACEI or ARB 80
No difference between treatment arms.
Values for categorical variables are %.

14. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Months from Randomization
Ticagrelor 60 mg
HR 0.84 (95% CI 0.74 – 0.95)
P=0.004
CV
Death,
MI,
or
Stroke
(%)
3 6 9 12
0 15 18 21 24 27 30 33 36
Ticagrelor 90 mg
HR 0.85 (95% CI 0.75 – 0.96)
P=0.008
Placebo (9.0%)
Ticagrelor 90 (7.8%)
Ticagrelor 60 (7.8%)
Primary Endpoint
6
5
4
3
10
9
8
7
2
1
0
N = 21,162
Median follow-up 33 months

15. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Components of Primary Endpoint
0.85 (0.75-0.96) 0.008
0.84 (0.74-0.95) 0.004
0.84 (0.76-0.94) 0.001
CV Death, MI, or Stroke
(1558 events)
HR (95% CI) P value
1
0.8
0.6
0.4 1.25 1.67
Ticagrelor better Placebo better
Endpoint
Ticagrelor 60 mg
Ticagrelor 90 mg
Pooled
CV Death
(566 events)
0.87 (0.71-1.06) 0.15
0.83 (0.68-1.01) 0.07
0.85 (0.71-1.00) 0.06
Myocardial Infarction
(898 events)
0.81 (0.69-0.95) 0.01
0.84 (0.72-0.98) 0.03
0.83 (0.72-0.95) 0.005
Stroke
(313 events)
0.82 (0.63-1.07) 0.14
0.75 (0.57-0.98) 0.03
0.78 (0.62-0.98) 0.03

16. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Other Efficacy Outcomes
Outcome
Ticagrelor
90 mg bid
(N=7050)
Ticagrelor
60 mg bid
(N=7045)
Placebo
(N=7067)
Ticagrelor 90
vs Placebo
p-value
Ticagrelor 60
vs Placebo
p-value
Coronary Death,
MI, or Stroke
7.0 7.1 8.3
HR 0.82
P=0.002
HR 0.83
P=0.003
Coronary Death
or MI
5.6 5.8 6.7
HR 0.81
P=0.004
HR 0.84
P=0.01
Coronary Death 1.5 1.7 2.1
HR 0.73
P=0.02
HR 0.80
P=0.09
Death from any
cause
5.2 4.7 5.2
HR 1.00
P=0.99
HR 0.89
P=0.14
3-yr KM rate (%)

17. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Subgroup Pts
All Patients 21,162
Age at Randomization
Age < 75 18,079
Age ≥ 75 3,083
Sex
Female 5,060
Male 16,102
Qualifying MI
NSTEMI 8,583
STEMI 11,329
Unknown 1,223
Time from Qualifying MI
< 2 years 12,980
≥ 2 years 8,155
Region
North America 3,907
South America 2,458
Europe 12,428
Asia 2,369
Efficacy for 1° EP in Subgroups
Placebo better
0.4 0.5 0.85 1 1.5 2.0 2.5
Hazard Ratio (95% CI)
Ticagrelor 90 mg vs Placebo
Hazard Ratio (95% CI)
Ticagrelor 60 mg vs Placebo
Ticagrelor 90 mg better
All P values for heterogeneity >0.05 0.4 0.5 0.84 1 1.5 2.0 2.5
Placebo better
Ticagrelor 60 mg better

18. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Bleeding
2.6
1.3
0.6 0.6
0.1
2.3
1.2
0.7 0.6
0.3
1.1
0.4
0.6 0.5
0.3
0
1
2
3
4
5
TIMI Major TIMI Minor Fatal bleeding or
ICH
ICH Fatal Bleeding
3-Year
KM
Event
Rate
(%)
Ticagrelor 90 mg
Ticagrelor 60 mg
Placebo
P<0.001
P<0.001
P=NS P=NS P=NS
Ticag 60: HR 2.32 (1.68-3.21)
Ticag 90: HR 2.69 (1.96-3.70)

19. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Other Adverse Events
Adverse Event
Ticagrelor
90 mg bid
(N=6988)
Ticagrelor
60 mg bid
(N=6958)
Placebo
(N=6996)
Ticagrelor 90
vs Placebo
p-value
Ticagrelor 60
vs Placebo
p-value
Dyspnea AE 18.9 15.8 6.4 P<0.001 P<0.001
Leading to
study drug d/c
6.5 4.6 0.8 P<0.001 P<0.001
Severe 1.2 0.6 0.2 P<0.001 P<0.001
Bradyarrhythmia 2.0 2.3 2.0 P=0.31 P=0.10
Gout 2.3 2.0 1.5 P<0.001 P=0.01
3-yr KM rate (%)

20. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Summary
• Adding ticagrelor to low-dose aspirin in stable
patients with a history of MI reduced the risk of CV
death, MI or stroke
• The benefit of ticagrelor was consistent
– For both fatal & non-fatal components of primary endpoint
– Over the duration of treatment
– Among major clinical subgroups
• Ticagrelor increased the risk of TIMI major bleeding,
but not fatal bleeding or ICH
• The two doses of ticagrelor had similar overall
efficacy, but bleeding and other side effects tended
to be less frequent with 60 mg bid dose

21. An Academic Research Organization of
Brigham and Women’s Hospital and Harvard Medical School
Conclusion
Long-term dual antiplatelet therapy with
low-dose aspirin and ticagrelor should
be considered in appropriate patients
with a myocardial infarction.