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Clopidogrel Only Before Percutaneous Coronary Intervention or Before Every Coronarography?

Clopidogrel Loading Dose for ad-Hoc Percutaneous Coronary Intervention Immediately Following Elective Coronary Angiography: Randomized Multicenter Trial Comparing Pre-Treatment > 6 Hours Before Every Angiography vs. Cath-Lab Administration After Angiography (Just Before Intervention): the PRAGUE-8 Trial.

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00432120
Enrollment
Unknown
Registered
2007-02-07
Start date
2006-03-31
Completion date
2007-07-31
Last updated
2008-01-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ischemic Heart Disease

Brief summary

Clopidogrel pre-treatment before planned percutaneous coronary intervention was proved to reduce periprocedural complications. However, the vast majority of patients in the current interventional cardiology practice do not undergo planned PCI, but rather ad-hoc PCI performed immediately after coronary angiography . Whether clopidogrel should be administered as pre-treatment to all patients undergoing elective CAG with the aim to ensure therapeutic levels at the time of possible ad-hoc PCI is not known.

Interventions

DRUGclopidogrel

To compare two different clopidogrel regimens on the outcomes of patients undergoing elective coronary angiography ± ad-hoc percutaneous coronary intervention

Sponsors

Charles University, Czech Republic
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum

Inclusion criteria

1. Age ≥ 18 years 2. Elective CAG for suspected or proven coronary artery disease (stable forms or fully stabilized acute coronary syndrome) 3. Signed written informed consent

Exclusion criteria

1. Thienopyridine treatment in previous two weeks 2. Contraindication for clopidogrel 3. CAG scheduled less than 6 hours after potential randomization 4. Clinically significant bleeding (i.e. with hemoglobin fall by \> 50 g/l and/or requiring transfusions or surgery) in previous 3 months.

Design outcomes

Primary

MeasureTime frame
Primary end point was the first clinical occurrence of any of the following: death / periprocedural myocardial infarction / stroke or transient ischemic attack / re-interventionwithin 7 days

Secondary

MeasureTime frame
Secondary end-points were periprocedural troponin elevation (> 3x ULN), TIMI-flow after PCI, bleeding complications and each individual component of the combined primary endpointwithin 7 day

Countries

Czechia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026