Acute Coronary SyndromeHOPEmultiPFANCT02699008
High On-treatment Platelet Reactivity Identified by Multiple Platelet Function Assay
A study testing Clopidogrel and Ticagrelor in people with Acute Coronary Syndrome, run by Wuhan Asia Heart Hospital at 1 site in China.
Trial summary
High on-treatment platelet reactivity to adenosine diphosphate was a important reason to cause ischemic events in antiplatelet therapy. Using single testing to definite HPR may miss the "true HPR" or over estimate HPR, which may lead to randomized trials failed. Read more about this study
- Who is it for?
- Ages 18 to 120 years
- Conditions the study is for
- Acute Coronary Syndrome
- What is being tested?
- Clopidogrel and Ticagrelor
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 477 participants
- Where
- 1 siteChina
- Study dates
- Jan 2014to Oct 2015
- Phase
- Interventional
- 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 120 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- ACS patients（UAP;USTEMI,STEMI）
- Undergoing PCI
- Oral antiplatelet therapy
Who cannot join
- Stable CAD
Trial locations and contacts
1 site in 1 country.
About this study
Official title: High On-treatment Platelet Reactivity to Adenosine Diphosphate Identified by Multiple Platelet Function Assay Guide to Modify Anti-platelet Strategy in Patients Undergoing Percutaneous Coronary Intervention
High on-treatment platelet reactivity to adenosine diphosphate was a important reason to cause ischemic events in antiplatelet therapy. Using single testing to definite HPR may miss the "true HPR" or over estimate HPR, which may lead to randomized trials failed. It is not known whether combined multiple platelet function testing could assist to ensure"ture"HPR and improve clinical outcomes.
Read the detailed description
This was a single-center, randomized, prospective study. ACS patients undergoing PCI treated with clopidogrel and aspirin were included. in the 3-5th day after prescription of clopidogrel, platelet function were tested simultaneously by three methods: MPAADP by Light transmittance aggregometry（LTA）, MAADP by Thrombelastography (TEG) ,and CTP2Y by Innovance PFA-200 . According to three result（Two of three or all three results higher than cutoff value was identified as HPR, MPALTA>50%;MAADP>47mm;CTP2Y<106s）.Patients was defined as HPR(n=125) or unHPR(n=232), HPR patients were divided into HPR-Ticagrelor(HPR-T)and HPR-Clopidogrel(HPR-C) randomized. HPR-T group(n=77) patients' antiplatelet agents changed to ticagrelor, both unHPR and HPR-C groups keep unchanged(Clopidogrel). The major adverse cardiovascular events (MACE) were recorded during 1 year Follow-up.
- Conditions
- Acute Coronary Syndrome
- Being tested
- Clopidogrel, Ticagrelor
- Keywords
- clopidogrel；antiplatelet therapy
- Medical subject headings
- Acute Coronary Syndrome
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ClopidogrelDrug
Antiplatelet agent
TicagrelorDrug
New P2Y12 receptor inhibitor antiplatelet agent
| Study group | Role | What they receive |
|---|---|---|
| HPR-Ticagrelor row | Active comparator | ACS patients aftergoing PCI treated with clopidogrel and aspirin were included. in the 3-5th day after prescription of clopidogrel, platelet function were tested simultaneously by three methods: Light transmittance aggregometry（LTA）, Thrombelastography (TEG) ,Innovance PFA-200 . According to three method results（Two of three or all three results higher than cutoff value was identified as HPR, MPALTA>50%;MAADP>47mm;CTP2Y<106s）.Patients was defined as HPR and unHPR, HPR patients were randomized divided into HPR-Ticagrelor(HPR-T) and HPR-Clopidogrel(HPR-C) Receives: Drug: Ticagrelor |
| HPR-Clopidogrel row | Active comparator | Thrombelastography (TEG) ,Innovance PFA-200 . According to three method results（Two of three or all three results higher than cutoff value was identified as HPR, MPALTA>50%;MAADP>47mm;CTP2Y<106s）.Patients was defined as HPR and unHPR, HPR patients were randomized divided into HPR-Ticagrelor(HPR-T) and HPR-Clopidogrel(HPR-C) Receives: Drug: Clopidogrel |
| unHPR row | Active comparator | Thrombelastography (TEG) ,Innovance PFA-200 . According to three method results（Two of three or all three results higher than cutoff value was identified as HPR, MPALTA>50%;MAADP>47mm;CTP2Y<106s）.Patients was defined as HPR and unHPR, HPR patients were randomized divided into HPR-Ticagrelor(HPR-T) and HPR-Clopidogrel(HPR-C) Receives: Drug: Clopidogrel |
What is being measured
The primary outcome is the main question the study is designed to answer.
Major adverse cardiovascular events
stent thrombosis；ACS；all cause Death；stroke；
Measured: 1 year
Secondary outcomes (1)
Bleeding events
gastrointestinal bleeding；gastrointestinal bleeding；other bleeding need RBC transfusion
Measured: 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted4 Mar 2016 (estimated)
- Study startJan 2014
- Primary completionAug 2015
- Study completionOct 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Acute Coronary SyndromeStudies 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 N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 477 participants (actual)
Sponsor and investigators
- Lead sponsor
- Wuhan Asia Heart Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Zhou xin, MD, Study chair, Wuhan Asia Heart Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02699008
- Sponsor's protocol ID
- PFT-2015-01
- Acronym
- HOPEmultiPFA
- Status last verified
- Feb 2016
- First submitted
- 30 Oct 2015
- Last updated
- 4 Mar 2016
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 4 Mar 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- High On-treatment Platelet Reactivity to Adenosine Diphosphate Identified by Multiple Platelet Function Assay Guide to Modify Anti-platelet Strategy in Patients Undergoing Percutaneous Coronary Intervention
- ClinicalTrials.gov ID
- NCT02699008
- Acronym / sponsor ID
- HOPEmultiPFA / PFT-2015-01
- Conditions
- Acute Coronary Syndrome
- Keywords
- clopidogrel；antiplatelet therapy
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 477 participants (actual)
- Lead sponsor
- Wuhan Asia Heart HospitalUniversity, hospital or other
- Study start
- Jan 2014
- Primary completion
- Aug 2015 (actual)
- Study completion
- Oct 2015 (actual)
- First posted
- 4 Mar 2016 (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.
High on-treatment platelet reactivity to adenosine diphosphate was a important reason to cause ischemic events in antiplatelet therapy. Using single testing to definite HPR may miss the "true HPR" or over estimate HPR, which may lead to randomized trials failed. It is not known whether combined multiple platelet function testing could assist to ensure"ture"HPR and improve clinical outcomes.
Detailed description
This was a single-center, randomized, prospective study. ACS patients undergoing PCI treated with clopidogrel and aspirin were included. in the 3-5th day after prescription of clopidogrel, platelet function were tested simultaneously by three methods: MPAADP by Light transmittance aggregometry（LTA）, MAADP by Thrombelastography (TEG) ,and CTP2Y by Innovance PFA-200 . According to three result（Two of three or all three results higher than cutoff value was identified as HPR, MPALTA>50%;MAADP>47mm;CTP2Y<106s）.Patients was defined as HPR(n=125) or unHPR(n=232), HPR patients were divided into HPR-Ticagrelor(HPR-T)and HPR-Clopidogrel(HPR-C) randomized. HPR-T group(n=77) patients' antiplatelet agents changed to ticagrelor, both unHPR and HPR-C groups keep unchanged(Clopidogrel). The major adverse cardiovascular events (MACE) were recorded during 1 year Follow-up.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| HPR-Ticagrelor row | Active comparator | Drug: TicagrelorACS patients aftergoing PCI treated with clopidogrel and aspirin were included. in the 3-5th day after prescription of clopidogrel, platelet function were tested simultaneously by three methods: Light transmittance aggregometry（LTA）, Thrombelastography (TEG) ,Innovance PFA-200 . According to three method results（Two of three or all three results higher than cutoff value was identified as HPR, MPALTA>50%;MAADP>47mm;CTP2Y<106s）.Patients was defined as HPR and unHPR, HPR patients were randomized divided into HPR-Ticagrelor(HPR-T) and HPR-Clopidogrel(HPR-C) |
| HPR-Clopidogrel row | Active comparator | Drug: ClopidogrelThrombelastography (TEG) ,Innovance PFA-200 . According to three method results（Two of three or all three results higher than cutoff value was identified as HPR, MPALTA>50%;MAADP>47mm;CTP2Y<106s）.Patients was defined as HPR and unHPR, HPR patients were randomized divided into HPR-Ticagrelor(HPR-T) and HPR-Clopidogrel(HPR-C) |
| unHPR row | Active comparator | Drug: ClopidogrelThrombelastography (TEG) ,Innovance PFA-200 . According to three method results（Two of three or all three results higher than cutoff value was identified as HPR, MPALTA>50%;MAADP>47mm;CTP2Y<106s）.Patients was defined as HPR and unHPR, HPR patients were randomized divided into HPR-Ticagrelor(HPR-T) and HPR-Clopidogrel(HPR-C) |
Who may qualify
- Ages
- 18 to 120 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- ACS patients（UAP;USTEMI,STEMI）
- Undergoing PCI
- Oral antiplatelet therapy
Key exclusion criteria (1 listed)
- Stable CAD
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 |
|---|---|---|
| ClopidogrelAntiplatelet agent | Drug | HPR-Clopidogrel row, unHPR row |
| TicagrelorNew P2Y12 receptor inhibitor antiplatelet agent | Drug | HPR-Ticagrelor row |
Primary outcome
Major adverse cardiovascular events
Time frame: 1 year
stent thrombosis；ACS；all cause Death；stroke；
1 secondary outcome
Bleeding events
Time frame: 1 year
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 4 Mar 2016.
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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.
Zhou xin, MD study chair
Wuhan Asia Heart Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Clopidogrel and Ticagrelor in people with Acute Coronary Syndrome, run by Wuhan Asia Heart Hospital at 1 site in China.
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 1 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 4 Mar 2016. 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 China. 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.
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?
Major adverse cardiovascular events (time frame: 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 4 Mar 2016.