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Non-ST or ST Elevation Acute Coronary SyndromesPhase 4HouYiNCT01864005

A Phase IV Study of the Onset and Maintenance of the Antiplatelet Effect of Ticagrelor Compared With Clopidogrel in Chinese Patients With ACS

A Phase 4 study testing Ticagrelor and Clopidogrel in people with Non-ST or ST Elevation Acute Coronary Syndromes, run by AstraZeneca at 3 sites in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to test the hypothesis that the onset of the antiplatelet effect of ticagrelor is more rapid and greater than clopidogrel in Chinese patients with ACS. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Ticagrelor and Clopidogrel
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
3 sitesChina
Study dates
May 2013to Mar 2014
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 1. Provision of informed consent prior to any study specific procedures
  • 2. Female or male aged at least 18 years
  • 3. Females of child-bearing potential must have a negative urine pregnancy test at enrolment and be willing to use reliable contraception
  • 4. Index event of non-ST or ST segment elevation ACS.

Who cannot join

  • 1.Contraindication or other reason that clopidogrel or ticagrelor should not be administered (eg, hypersensitivity, active bleeding, moderate or severe liver disease, history of previous intracranial bleed, GI bleed within the past 6 months, major surgery within 30 days)
  • 2. Oral anticoagulation therapy or GP IIb/IIIa receptor antagonists therapy within 30 days prior to randomisation or cannot be stopped
  • 3. Ticagrelor or clopidogrel or other P2Y12 inhibitors within 14 days prior to randomisation
  • 4. Requires dialysis
  • 5. Nonselective non-steroidal anti-inflammatory drugs (NSAIDs) and prostacyclins (PGI2) therapy that cannot be stopped

Trial locations and contacts

3 sites in 1 country.

China3 sites
  • Research Site

    Beijing

  • Research Site

    Shenyang

  • Research Site

    Tianjin

Other trials in China

About this study

Official title: A Multicentre, Open-label, Randomized, 6-week, Phase IV Study of the Onset and Maintenance of the Antiplatelet Effect of Ticagrelor Compared With Clopidogrel With Aspirin as Background Therapy in Chinese Patients With Non-ST or ST Elevation Acute Coronary Syndromes (ACS)

The purpose of this study is to test the hypothesis that the onset of the antiplatelet effect of ticagrelor is more rapid and greater than clopidogrel in Chinese patients with ACS.

Being tested
Ticagrelor, Clopidogrel
Keywords
Non-ST or ST Elevation Acute Coronary Syndromes, Ticagrelor, Clopidogrel, Antiplatelet Effect

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • TicagrelorDrug

    90mg tablets. loading dose of 180mg ticagrelor tablets (two 90mg tablets) taken orally, followed by 90mg of ticagrelor 12 hours after the first dose. Duration of treatment: 6 weeks.

  • ClopidogrelDrug

    75mg capsule. loading dose of 600mg clopidogrel capsules (eight 75mg capsules) taken orally, follow by 75mg of clopidogrel capsules orally od. Duration of treatment: 6 weeks.

Study groups in NCT01864005
Study groupRoleWhat they receive
TicagrelorExperimentalNot described
Receives: Drug: Ticagrelor
clopidogrelActive comparatorNot described
Receives: Drug: Clopidogrel

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. the Percentage Inhibition of the P2Y12 Receptor

    Note: the primary endpoint was changed per the statistical analysis plan prior database lock.

    Measured: at 2 hours after first dose of study drug

Secondary outcomes (4)
  1. the Percentage Inhibition of the P2Y12 Receptor

    Measured: at 0.5 hour after first dose of study drug

  2. the Percentage Inhibition of the P2Y12 Receptor

    Measured: at 8 hours after first dose of study drug

  3. the Percentage Inhibition of the P2Y12 Receptor

    Measured: at 24 hours after first dose of study drug

  4. the Percentage Inhibition of the P2Y12 Receptor

    Measured: at 6 weeks after first dose of study drug

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 May 2013 (estimated)
  2. Study startMay 2013
  3. Primary completionMar 2014
  4. Study completionMar 2014

Resources

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01864005
Sponsor's protocol ID
D5130L00053
Acronym
HouYi
Status last verified
Apr 2015
First submitted
24 May 2013
Last updated
15 May 2015
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Ticagrelor and Clopidogrel in people with Non-ST or ST Elevation Acute Coronary Syndromes, run by AstraZeneca at 3 sites 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 4 inclusion and 5 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 May 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 2 Mar 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

the Percentage Inhibition of the P2Y12 Receptor (time frame: at 2 hours after first dose of study drug). 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 15 May 2015.

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