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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 4INTERVENTIONAL

Effects of Low-dose Ticagrelor vs. Clopidogrel in Stable Patients Undergoing Elective Percutaneous Coronary Intervention

Pharmacodynamic Effects of Low-dose Ticagrelor vs. Clopidogrel in Stable Patients Undergoing Elective Percutaneous Coronary Intervention Who Are At Risk of Peri-PCI Myocardial Infarction Using a Precision Medicine Tool

Effects of Low-dose Ticagrelor vs. Clopidogrel in Stable Patients Undergoing Elective Percutaneous Coronary Intervention (NCT06228456) is a Phase 4 interventional studying Coronary Artery Disease, sponsored by University of Florida. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

The proposed study aims to assess the antiplatelet effects of more potent oral P2Y12 inhibition with low-dose ticagrelor (60 mg bid) compared with standard of care clopidogrel in patients with a high ABCD-GENE score (≥10). We hypothesize that ticagrelor is associated with better pharmacodynamic effects (i.e., lower platelet reactivity and high platelet reactivity rates) compared with clopidogrel in stable coronary artery disease patients undergoing percutaneous coronary intervention with a high ABCD-GENE score.

What Stage of Research Is This?

Phase 4 studies happen after a treatment has been approved by the FDA. They monitor long-term safety, real-world effectiveness, and any rare side effects that only emerge in larger populations over longer periods. Phase 4 results sometimes lead to label changes, additional warnings, or — rarely — withdrawal of approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

Target enrollment of 50 participants puts this in the typical range for a Phase 2-style efficacy study or a moderate Phase 3 trial in a focused Coronary Artery Disease subpopulation. At this scale, the study has enough statistical power to detect a clear treatment effect but is not the largest cohort in the field.

Who May Be Eligible (Plain English)

Who May Qualify: 1. Stable CAD undergoing elective PCI; 2. Male or females, Age ≥ 18 years old; 3. Troponin negative before coronary angiography; 4. On treatment with low-dose aspirin (81mg od) and clopidogrel for at least 24 hours after index PCI; 5. ABCD-GENE score greater or equal than 10. Troponin negative is defined as hs-cTn below the URL for the laboratory (Male \< 22 ng/L; Female \< 14 ng/L) or modestly positive hs-cTn (Male: 22-99 ng/L; Female: 14-99 ng/L) flat or decreasing from hour 0 to 3. Who Should NOT Join This Trial: 1. Myocardial infarction at the time of index PCI; 2. On treatment with prasugrel or ticagrelor; 3. Documented hypersensitivity to clopidogrel; 4. Use of an intravenous antiplatelet therapy (i.e., cangrelor or GPI) in the prior 24 hours; 5. Concomitant therapy with strong CYP3A4 inhibitors or CYP3A4 substrates; 6. Use of oral anticoagulant therapy; 7. History of previous intracerebral bleed at any time; 8. Active pathological bleeding; 9. Documented hypersensitivity to ticagrelor; 10. Increased risk of bradycardic events (e.g., known sick sinus syndrome, second or third degree AV block or previous documented syncope suspected to be due to bradycardia) unless treated with a pacemaker; 11. Known severe liver disease; 12. Known platelet count \<80x106/mL; 13. Known hemoglobin \<9 g/dL; 14. Women of child-bearing potential (i.e., those who are not chemically or surgically sterilized or who are not post-menopause) who are not willing to use a medically accepted method of contraception that is considered reliable in the judgment of the investigator OR who have a positive pregnancy test at enrollment or randomization OR women who are breast-feeding. 15. Inability to provide written willing to sign a consent form. Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: 1. Stable CAD undergoing elective PCI; 2. Male or females, Age ≥ 18 years old; 3. Troponin negative before coronary angiography; 4. On treatment with low-dose aspirin (81mg od) and clopidogrel for at least 24 hours after index PCI; 5. ABCD-GENE score greater or equal than 10. Troponin negative is defined as hs-cTn below the URL for the laboratory (Male \< 22 ng/L; Female \< 14 ng/L) or modestly positive hs-cTn (Male: 22-99 ng/L; Female: 14-99 ng/L) flat or decreasing from hour 0 to 3. Exclusion Criteria: 1. Myocardial infarction at the time of index PCI; 2. On treatment with prasugrel or ticagrelor; 3. Documented hypersensitivity to clopidogrel; 4. Use of an intravenous antiplatelet therapy (i.e., cangrelor or GPI) in the prior 24 hours; 5. Concomitant therapy with strong CYP3A4 inhibitors or CYP3A4 substrates; 6. Use of oral anticoagulant therapy; 7. History of previous intracerebral bleed at any time; 8. Active pathological bleeding; 9. Documented hypersensitivity to ticagrelor; 10. Increased risk of bradycardic events (e.g., known sick sinus syndrome, second or third degree AV block or previous documented syncope suspected to be due to bradycardia) unless treated with a pacemaker; 11. Known severe liver disease; 12. Known platelet count \<80x106/mL; 13. Known hemoglobin \<9 g/dL; 14. Women of child-bearing potential (i.e., those who are not chemically or surgically sterilized or who are not post-menopause) who are not willing to use a medically accepted method of contraception that is considered reliable in the judgment of the investigator OR who have a positive pregnancy test at enrollment or randomization OR women who are breast-feeding. 15. Inability to provide written informed consent.

Treatments Being Tested

DRUG

Ticagrelor 60mg

Patients in the ticagrelor arm will receive a 180 mg loading dose of ticagrelor followed by ticagrelor 60 mg bid maintenance dose for 30±5 days. Patients will maintain aspirin 81 mg once daily for the duration of the study.

DRUG

Clopidogrel

Patients in the clopidogrel arm will continue to receive clopidogrel 75 mg/daily for 30±5 days. Patients will maintain aspirin 81 mg once daily for the duration of the study.

Locations (1)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

University of Florida Jacksonville
Jacksonville, Florida, United States

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT06228456), the sponsor (University of Florida), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT06228456 clinical trial studying?

The proposed study aims to assess the antiplatelet effects of more potent oral P2Y12 inhibition with low-dose ticagrelor (60 mg bid) compared with standard of care clopidogrel in patients with a high ABCD-GENE score (≥10). We hypothesize that ticagrelor is associated with better pharmacodynamic effects (i.e., lower platelet reactivity and high platelet reactivity rates) compared with clopidogrel in stable coronary artery disease patients undergoing percutaneous coronary intervention with a high ABCD-GENE score. The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT06228456?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT06228456?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT06228456. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT06228456. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.