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A Study of the Antiplatelet Effects Comparing Ticagrelor (Ticag. - AZD6140) With Clopidogrel (Clop.) Responder and Non-responders (RESPOND)

AstraZeneca logo

AstraZeneca

Status and phase

Completed
Phase 2

Conditions

Stable Coronary Artery Disease

Treatments

Drug: Aspirin
Drug: Clopidogrel
Drug: Ticagrelor

Study type

Interventional

Funder types

Industry

Identifiers

NCT00642811
D5130C00030

Details and patient eligibility

About

The purpose of this study is to see how Ticagrelor, a new oral reversible anti-platelet medication, affects platelets. Anti-platelet agents are medications that block the formation of blood clots by preventing the clumping of platelets. Blood clots prevent us from bleeding, but when they form inside the arteries their formation is linked to a risk of medical problems such as heart attack and stroke. This study investigated the effect of Ticagrelor on inhibition of platelet aggregation compared with clopidogrel in patients previously identified as non-responsive to clopidogrel.

Enrollment

98 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Patients with documented stable Coronary Artery Disease (CAD) (stable angina, previous MI history, previous history of revascularization)
  • Females of child bearing potential must have a negative pregnancy test prior to receiving study drug and be willing to use a hormonal contraceptive in addition to double barrier contraception

Exclusion criteria

  • History of Acute Coronary Syndromes within 12 months of screening or need for revascularization (angioplasty or coronary artery bypass graft (CABG))
  • Any acute or chronic unstable condition in the past 30 days
  • Have increased bleeding risk, eg, recent gastrointestinal bleed, uncontrolled high blood pressure, low platelet count, recent major trauma
  • History of intolerance or allergy to aspirin or clopidogrel

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Crossover Assignment

Masking

Quadruple Blind

98 participants in 2 patient groups

1
Experimental group
Description:
Aspirin + Ticagrelor
Treatment:
Drug: Ticagrelor
Drug: Aspirin
2
Active Comparator group
Description:
Aspirin + Clopidogrel
Treatment:
Drug: Aspirin
Drug: Clopidogrel

Trial contacts and locations

10

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Data sourced from clinicaltrials.gov

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