Different Dosage of Domestic and Imported Clopidogrel on the Platelet Inhibition Ratio in Patients Undergoing PCI

Phase 4

• Conditions: Coronary Heart Disease
• Interventions: Drug: Clopidogrel

• Registration Number: NCT03006835
• Lead Sponsor: Xijing Hospital

Brief Summary

This is a single-center, randomized, single-blind, investigator-initiated, pharmacological study with a parallel design. Patients with non-ACS undergoing primary percutaneous coronary intervention will be randomized after informed consent, in a 1:1:1:1 ratio to the following treatment groups:

Group Α: Domestic Clopidogrel 300mg as a loading dose before PCI, followed by 75mg per day.

Group B: Domestic Clopidogrel 600mg as a loading dose before PCI, followed by 75mg per day.

Group B: Imported Clopidogrel 300mg as a loading dose before PCI, followed by 75mg per day.

Group D: Imported Clopidogrel 600mg as a loading dose before PCI, followed by 75mg per day.

Platelet inhibition ratio assessment by thrombelastogram will be performed，2 hours after the loading dose(Day 0)， 6 hours after thrombelastogram (Day 0), 30 day after thrombelastogram. Documentation of major adverse cardiac events (death, myocardial infarction, stroke, revascularization procedure with PCI or CABG) and serious adverse events (bleeding, other adverse events)will be performed until Day 30.

Detailed Description

Not available

Study Timeline

• Status Verified: 2016-12
• Study First Submitted: 2016-12-27
• Study First Submitted QC: 2016-12-27
• Last Update Submitted: 2016-12-27
• Study First Posted: 2016-12-30
• Last Update Posted: 2016-12-30
• Study Start: 2017-01
• Primary Completion: 2017-12
• Study Completion: 2017-12

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 120

Inclusion Criteria

1. The patient is scheduled to undergo non-urgent PCI
2. The patient is between 18 and 75 years of age (inclusive) and willing to comply with the protocol
3. The patient or legally acceptable representative is able to read and give written informed consent and has signed an informed consent form approved by the Investigator's IRB/IEC

Exclusion Criteria

1. Estimated or measured weight < 55 kg
2. Acute non-ST-segment elevation myocardial infarction (NSTEMI) or ST-segment elevation myocardial infarction (STEMI) within 7 days prior to PCI
3. Uncontrolled hypertension at the time of initial study drug administration defined as measured systolic blood pressure > 190 mm Hg or diastolic blood pressure > 108 mm Hg
4. Patient has received a clopidogrel loading dose (≥300 mg) within 30 days prior to randomization; patients on maintenance clopidogrel may be enrolled
5. Administration of thrombolytic agents, fondaparinux, or oral anticoagulants (e.g., warfarin) within the 7 days prior to PCI
6. Estimated creatinine clearance (e.g. Cockcroft-Gault) < 45 mL/min
7. Anemia with hemoglobin level < 10 g/dL
8. Thrombocytopenia (platelet count < 100,000/mm3)
9. ALT and/or AST > 2.5 x the ULN or other indication of clinically significant hepatic dysfunction
10. Facial or head trauma within the last 30 days
11. Intraocular hemorrhage within the last 30 days
12. Gastrointestinal bleeding within the last 30 days
13. Active bleeding, or history of a bleeding disorder or known intracranial vascular malformation
14. Known allergy or contraindication to aspirin, heparin, clopidogrel, or to any contrast media
15. Participation in any investigational drug study within 30 days prior to enrollment.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Domestic Clopidogrel 300mg	Clopidogrel	Domestic Clopidogrel 300mg
Imported Clopidogrel 600mg	Clopidogrel	Imported Clopidogrel 600mg
Domestic Clopidogrel 600mg	Clopidogrel	Domestic Clopidogrel 600mg
Imported Clopidogrel 300mg	Clopidogrel	Imported Clopidogrel 300mg

Primary Outcome Measures

Name	Time	Method
ADP- induced platelet inhibition rate	30 days after the loading dose

Secondary Outcome Measures

Name	Time	Method
R value (min)	2 hours after the loading dose