NCT02327624

Brief Summary

The principal hypothesis of this study is that two different maintenance regimens of ticagrelor are safe, tolerable and associated with significant inhibition of erythrocyte adenosine reuptake compared to clopidogrel in patients undergoing elective Percutaneous Coronary Intervention (PCI) for stable Coronary artery disease (CAD).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
180

participants targeted

Target at P50-P75 for phase_4 coronary-artery-disease

Timeline
Completed

Started Jun 2015

Typical duration for phase_4 coronary-artery-disease

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 10, 2014

Completed
20 days until next milestone

First Posted

Study publicly available on registry

December 30, 2014

Completed
5 months until next milestone

Study Start

First participant enrolled

June 1, 2015

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2018

Completed
Last Updated

January 23, 2019

Status Verified

January 1, 2019

Enrollment Period

3 years

First QC Date

December 10, 2014

Last Update Submit

January 21, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Platelet function in the three treatment groups

    2 years

Secondary Outcomes (2)

  • Rates of myocardial infarction following PCI

    2 years

  • Plasma adenosine concentration in the three treatment groups

    2 years

Study Arms (3)

Clopidogrel

ACTIVE COMPARATOR

The standard antiplatelet treatment for patients is pretreatment with aspirin and clopidogrel. In this trial patients will be randomised in clopidogrel orTicagrelor of two doses

Drug: Clopidogrel

Ticagrelor 60

EXPERIMENTAL

Ticagrelor 60 is a new dosage to be tried in this trial.

Drug: Ticagrelor 60

Ticagrelor 90

EXPERIMENTAL

Ticagrelor 90 is used following clopidogrel as maintenance therapy with aspirin 75 mg daily and clopidogrel 75 mg daily following PCI for at least 1 month.

Drug: Ticagrelor 90

Interventions

Compare Clopidogrel to two doses of Ticagrelor 60 and 90

Clopidogrel

Compare Clopidogrel to two doses of Ticagrelor 60 and 90

Ticagrelor 60

Compare Clopidogrel to two doses of Ticagrelor 60 and 90

Ticagrelor 90

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Provision of informed consent prior to any study specific procedures
  • Male or female aged greater than 18 years
  • Previous invasive coronary angiography with plan for PCI with coronary stent implantation for stable coronary artery disease

You may not qualify if:

  • Requirement for a chronic total occlusion to be crossed in order for any stent implantation to proceed
  • Plan for coronary angiography with a view to PCI if appropriate (i.e. current coronary anatomy not known)
  • Intention to use platelet function tests or genotyping to guide antiplatelet therapy
  • Known allergy to or intolerance of aspirin, clopidogrel or ticagrelor
  • Treatment with antiplatelet medication apart from aspirin or clopidogrel that cannot be stopped 10 days prior to PCI (e.g. ticagrelor, prasugrel, dipyridamole, ticlopidine, abciximab, tirofiban), for example because of continuing indication
  • Planned treatment or consideration of treatment with oral antiplatelet medication other than aspirin or clopidogrel following PCI
  • Planned use of a glycoprotein IIb/IIIa antagonist for the PCI procedure
  • Myocardial infarction within the past 12 months
  • Current or planned use of an oral anticoagulant (e.g. warfarin, dabigatran, rivaroxaban, apixaban)
  • Previous history of intracranial haemorrhage or other intracranial pathology associated with increased bleeding risk
  • Haemoglobin \< 100 g/L or other evidence of active bleeding
  • Peptic ulceration documented by endoscopy within the last 3 months unless healing proven by repeat endoscopy
  • History of acute or chronic liver disease (e.g. cirrhosis)
  • Treatment in the last 10 days or requirement for ongoing treatment with a strong CYP3A4 inhibitor or inducer (see section 5.6.8)
  • Requirement for ongoing treatment with simvastatin or lovastatin at a dose greater than 40 mg per day
  • +6 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sheffield Teaching Hospitals NHS FT

Sheffield, United Kingdom

Location

Related Publications (1)

  • Orme RC, Parker WAE, Thomas MR, Judge HM, Baster K, Sumaya W, Morgan KP, McMellon HC, Richardson JD, Grech ED, Wheeldon NM, Hall IR, Iqbal J, Barmby D, Gunn JP, Storey RF. Study of Two Dose Regimens of Ticagrelor Compared With Clopidogrel in Patients Undergoing Percutaneous Coronary Intervention for Stable Coronary Artery Disease. Circulation. 2018 Sep 25;138(13):1290-1300. doi: 10.1161/CIRCULATIONAHA.118.034790. Epub 2018 Jul 24.

MeSH Terms

Conditions

Coronary Artery Disease

Interventions

Clopidogrel

Condition Hierarchy (Ancestors)

Coronary DiseaseMyocardial IschemiaHeart DiseasesCardiovascular DiseasesArteriosclerosisArterial Occlusive DiseasesVascular Diseases

Intervention Hierarchy (Ancestors)

TiclopidineThienopyridinesThiophenesSulfur CompoundsOrganic ChemicalsPyridinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 10, 2014

First Posted

December 30, 2014

Study Start

June 1, 2015

Primary Completion

May 31, 2018

Study Completion

May 31, 2018

Last Updated

January 23, 2019

Record last verified: 2019-01

Locations