Coronary Artery DiseasePhase 3EFFICIENTNCT01032668
The EFFect of hIgh Dose ClopIdogrel treatmENT in Patients With Clopidogrel Resistance
A Phase 3 study testing Clopidogrel in people with Coronary Artery Disease, run by Bursa Postgraduate Hospital at 1 site in Turkey (Türkiye).
Trial summary
Continuing high dose clopidogrel treatment after elective PCI decreased adverse cardiac events in patients with clopidogrel resistance Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Coronary Artery Disease
- What is being tested?
- Clopidogrel
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 192 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- Sep 2008to Dec 2009
- Phase
- Phase 3
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- The patients; who have planned elective PCI and have had written informed consent for participation to study.
- Age>18 year-old,
- The native coronary artery;lesion with narrowing >=70%
Who cannot join
- Patients have allergy for ASA, Clopidogrel and heparin
- Patients who performed primary PCI
- Patients with acute coronary syndrome
- Patients with have a history of PCI and use clopidogrel
- Patients on warfarin therapy
- Patients who have bleeding diathesis, or have high risk for bleeding.
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Bursa Yüksek İhtisas Eğitim ve Araştırma Hastanesi
Bursa, 16320
About this study
Continuing high dose clopidogrel treatment after elective PCI decreased adverse cardiac events in patients with clopidogrel resistance
Read the detailed description
Aim:
Primary objective:
- To evaluate the effect of continuing high dose clopidogrel treatment on adverse cardiac events after elective PCI in patients with clopidogrel resistance
Secondary objective:
- To evaluate the effect of continuing high dose clopidogrel treatment on adverse cardiac events after elective PCI
- To evaluate the effect of continuing high dose clopidogrel treatment on bleeding complications after elective PCI
- To evaluate the clinical effect of VerifyNow which use as a clopidogrel resistance kit.
Study central:
Bursa Postgraduate Hospital, Cardiology Clinic
Study population:
we planned to enrol 180 patients. 50% of patients without clopidogrel resistance (control group: 90 patients) 50% have clopidogrel resistance. Than we randomise the patients (with clopidogrel resistance) in two groups (group 1:45 patients (75mg/day), group 2:45 patients (150mg/day))
inclusion criteria:
- The patients; who have planned elective PCI and have had written informed consent for participation to study.
- Age>18 year-old,
- The native coronary artery;lesion with narrowing >=70%
Exclusion criteria:
- Patients have allergy for ASA, Clopidogrel and heparin
- Patients who performed primary PCI
- Patients with acute coronary syndrome
- Patients with have a history of PCI and use clopidogrel
- Patients on warfarin therapy
- Patients who have bleeding diathesis, or have high risk for bleeding.
Study works:
- Write case report form for all patients
- Control for inclusion criteria.
- Evaluate the clopidogrel and ASA resistance with VerifyNow kit. Than randomised the patients.
- Demographic data (age, gender)
- Height, weight, BMI and GFR
- Risk factors
- laboratory data (biochemical and hematologic)
- Medication history
- Echocardiographic data
- Angiographic data
- PCI data(vessel diameter, stent diameter, lesion and stent length, performed PTCA or not, etc)
- Note complication (MACE, bleeding, hematoma etc) 4 weeks later note the first control data and re assess the clopidogrel resistance with VerifyNow kit in patients groups 1 and 2.
Six months later note the second control data.
- Conditions
- Coronary Artery Disease
- Being tested
- Clopidogrel
- Keywords
- percutaneous coronary intervention, clopidogrel resistance, ASA resistance
- Medical subject headings
- Coronary Artery Disease
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ClopidogrelDrug
high dose clopidogrel continuing after percutaneous coronary intervention
| Study group | Role | What they receive |
|---|---|---|
| high dose clopidogrel | Experimental | Not described Receives: Drug: Clopidogrel |
What is being measured
The primary outcome is the main question the study is designed to answer.
Death, MI, TVR revascularization, stroke (MACCE) within 30 days and 6 moths
Measured: 6 months.
Secondary outcomes (1)
Major or minor bleeding according to TIMI criteria 30 days and 6 months To evaluate the clinical effect of VerifyNow which use as a clopidogrel resistance kit 30 days and 6 months.
Measured: 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Dec 2009 (estimated)
- Study startSep 2008
- Primary completionJul 2009
- Study completionDec 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Coronary Artery DiseaseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 192 participants (actual)
Sponsor and investigators
- Lead sponsor
- Bursa Postgraduate Hospital
- Sponsor type
- University, hospital or other
- Investigators
- Hasan ARI, MD, Study director, Bursa Postgraduate Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01032668
- Sponsor's protocol ID
- BYİEAH2
- Acronym
- EFFICIENT
- Status last verified
- Aug 2008
- First submitted
- 14 Dec 2009
- Last updated
- 15 Dec 2009
- Results posted
- No
- Data monitoring committee
- No
Publications
Aleil B, Jacquemin L, De Poli F, Zaehringer M, Collet JP, Montalescot G, Cazenave JP, Dickele MC, Monassier JP, Gachet C. Clopidogrel 150 mg/day to overcome low responsiveness in patients undergoing elective percutaneous coronary intervention: results from the VASP-02 (Vasodilator-Stimulated Phosphoprotein-02) randomized study. JACC Cardiovasc Interv. 2008 Dec;1(6):631-8. doi: 10.1016/j.jcin.2008.09.004.
PubMed 19463377Ari H, Ozkan H, Karacinar A, Ari S, Koca V, Bozat T. The EFFect of hIgh-dose ClopIdogrel treatmENT in patients with clopidogrel resistance (the EFFICIENT trial). Int J Cardiol. 2012 Jun 14;157(3):374-80. doi: 10.1016/j.ijcard.2010.12.083. Epub 2011 Jan 15.
PubMed 21239075
Study at a glance
From the registry record, last updated by the sponsor on 15 Dec 2009. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The EFFect of hIgh Dose ClopIdogrel treatmENT in Patients With Clopidogrel Resistance
- ClinicalTrials.gov ID
- NCT01032668
- Acronym / sponsor ID
- EFFICIENT / BYİEAH2
- Conditions
- Coronary Artery Disease
- Keywords
- percutaneous coronary intervention, clopidogrel resistance, ASA resistance
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 192 participants (actual)
- Lead sponsor
- Bursa Postgraduate HospitalUniversity, hospital or other
- Study start
- Sep 2008
- Primary completion
- Jul 2009 (actual)
- Study completion
- Dec 2009 (actual)
- First posted
- 15 Dec 2009 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Continuing high dose clopidogrel treatment after elective PCI decreased adverse cardiac events in patients with clopidogrel resistance
Detailed description
Aim:
Primary objective:
- To evaluate the effect of continuing high dose clopidogrel treatment on adverse cardiac events after elective PCI in patients with clopidogrel resistance
Secondary objective:
- To evaluate the effect of continuing high dose clopidogrel treatment on adverse cardiac events after elective PCI
- To evaluate the effect of continuing high dose clopidogrel treatment on bleeding complications after elective PCI
- To evaluate the clinical effect of VerifyNow which use as a clopidogrel resistance kit.
Study central:
Bursa Postgraduate Hospital, Cardiology Clinic
Study population:
we planned to enrol 180 patients. 50% of patients without clopidogrel resistance (control group: 90 patients) 50% have clopidogrel resistance. Than we randomise the patients (with clopidogrel resistance) in two groups (group 1:45 patients (75mg/day), group 2:45 patients (150mg/day))
inclusion criteria:
- The patients; who have planned elective PCI and have had written informed consent for participation to study.
- Age>18 year-old,
- The native coronary artery;lesion with narrowing >=70%
Exclusion criteria:
- Patients have allergy for ASA, Clopidogrel and heparin
- Patients who performed primary PCI
- Patients with acute coronary syndrome
- Patients with have a history of PCI and use clopidogrel
- Patients on warfarin therapy
- Patients who have bleeding diathesis, or have high risk for bleeding.
Study works:
- Write case report form for all patients
- Control for inclusion criteria.
- Evaluate the clopidogrel and ASA resistance with VerifyNow kit. Than randomised the patients.
- Demographic data (age, gender)
- Height, weight, BMI and GFR
- Risk factors
- laboratory data (biochemical and hematologic)
- Medication history
- Echocardiographic data
- Angiographic data
- PCI data(vessel diameter, stent diameter, lesion and stent length, performed PTCA or not, etc)
- Note complication (MACE, bleeding, hematoma etc) 4 weeks later note the first control data and re assess the clopidogrel resistance with VerifyNow kit in patients groups 1 and 2.
Six months later note the second control data.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| high dose clopidogrel | Experimental | Drug: Clopidogrel |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- The patients; who have planned elective PCI and have had written informed consent for participation to study.
- Age>18 year-old,
- The native coronary artery;lesion with narrowing >=70%
Key exclusion criteria (6 listed)
- Patients have allergy for ASA, Clopidogrel and heparin
- Patients who performed primary PCI
- Patients with acute coronary syndrome
- Patients with have a history of PCI and use clopidogrel
- Patients on warfarin therapy
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Clopidogrelhigh dose clopidogrel continuing after percutaneous coronary intervention | Drug | high dose clopidogrel |
Primary outcome
Death, MI, TVR revascularization, stroke (MACCE) within 30 days and 6 moths
Time frame: 6 months.
1 secondary outcome
Major or minor bleeding according to TIMI criteria 30 days and 6 months To evaluate the clinical effect of VerifyNow which use as a clopidogrel resistance kit 30 days and 6 months.
Time frame: 6 months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 Dec 2009.
- Background: PubMed 19463377Aleil B, Jacquemin L, De Poli F, Zaehringer M, Collet JP, Montalescot G, Cazenave JP, Dickele MC, Monassier JP, Gachet C. Clopidogrel 150 mg/day to overcome low responsiveness in patients undergoing elective percutaneous coronary intervention: results from the VASP-02 (Vasodilator-Stimulated Phosphoprotein-02) randomized study. JACC Cardiovasc Interv. 2008 Dec;1(6):631-8. doi: 10.1016/j.jcin.2008.09.004.
- Derived from this study: PubMed 21239075Ari H, Ozkan H, Karacinar A, Ari S, Koca V, Bozat T. The EFFect of hIgh-dose ClopIdogrel treatmENT in patients with clopidogrel resistance (the EFFICIENT trial). Int J Cardiol. 2012 Jun 14;157(3):374-80. doi: 10.1016/j.ijcard.2010.12.083. Epub 2011 Jan 15.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Hasan ARI, MD study director
Bursa Postgraduate Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Clopidogrel in people with Coronary Artery Disease, run by Bursa Postgraduate Hospital at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 15 Dec 2009. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Death, MI, TVR revascularization, stroke (MACCE) within 30 days and 6 moths (time frame: 6 months.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01032668, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Dec 2009.