Switching From DAPT to Dual Pathway Inhibition With Low-dose Rivaroxaban in Adjunct to Aspirin in Patients With Coronary Artery Disease (SWAP-AC)

April 25, 2023 updated by: University of Florida

Switching From Standard of Care Dual Antiplatelet Treatment (DAPT) Regimens With Aspirin Plus a P2Y12 Inhibitor to Dual Pathway Inhibition (DPI) With Low-dose Rivaroxaban in Adjunct to Aspirin in Patients With Coronary Artery Disease: The Switching Anti-Platelet and Anti-Coagulant Therapy (SWAP-AC) Study

Recent studies indicate that anti-factor-Xa inhibition with low-dose rivaroxaban may have a role in the reduction of ischemic recurrences in patients with atherosclerotic disease manifestations. The objectives of this investigation are to assess the feasibility of switching from a DAPT to DPI regimen and to compare the pharmacodynamic profiles of these treatment regimens. This will be a prospective study conducted in cohorts of patients with CAD on treatment per standard of care with DAPT. Patients will be randomized to either maintain DAPT or to DPI. DPI consists in treatment with aspirin (81mg/qd) plus rivaroxaban (2.5mg/bid).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Recent studies indicate that anti-factor-Xa inhibition with low-dose rivaroxaban may have a role in the reduction of ischemic recurrences in patients with atherosclerotic disease manifestations. In the COMPASS trial, patients with stable coronary or peripheral artery disease and no indication for oral anticoagulation or dual antiplatelet therapy (DAPT) were randomized to rivaroxaban 2.5 mg bid in combination with aspirin, rivaroxaban 5 mg bid monotherapy or aspirin monotherapy. The study showed a significant 24% relative reduction in ischemic outcomes with rivaroxaban 2.5 mg bid plus aspirin combination strategy compared with aspirin alone. These observations have raised practical considerations on how to implement the results of the COMPASS trial in clinical practice particularly for patients who are completing a minimum duration of DAPT and contemplating between continuing with a DAPT regimen versus switching to a dual pathway inhibition (DPI) regimen with aspirin plus rivaroxaban. Therefore, the objectives of this investigation are to assess the feasibility of switching from a DAPT to DPI regimen and to compare the pharmacodynamic profiles of these treatment regimens. This will be a prospective study conducted in cohorts of patients with CAD on treatment per standard of care with DAPT. Patients will be randomized to either maintain DAPT or to DPI. DPI consists in treatment with aspirin (81mg/qd) plus rivaroxaban (2.5mg/bid).

Study Type

Interventional

Enrollment (Actual)

90

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Florida
      • Jacksonville, Florida, United States, 32209
        • University of Florida

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion criteria:

  • Willing and able to provide written informed consent
  • Above 18 years of age
  • Have known CAD and have completed their required duration of standard of care DAPT (aspirin in combination with either clopidogrel, prasugrel, or ticagrelor) and still be on treatment:

    • ≥ 6 months after an elective PCI
    • ≥ 12 months after experiencing an ACS (irrespective of revascularization at the time of ACS; thus patients treated by PCI, CABG, or medically managed can be considered)

Exclusion criteria:

  • Deemed to be at high risk of bleeding, active bleeding or history of major bleeding Stroke within 1 month or any history of hemorrhagic or lacunar stroke
  • Estimated glomerular filtration rate <15 mL/min by MDRD equation
  • Need for dual antiplatelet therapy, other non-aspirin antiplatelet therapy, or oral anticoagulant therapy
  • Known non-cardiovascular disease that is associated with poor prognosis (e.g., metastatic cancer) or that increases the risk of an adverse reaction to study interventions.
  • History of hypersensitivity or known contraindication for rivaroxaban.
  • Systemic treatment with strong inhibitors of both CYP 3A4 and p-glycoprotein (e.g., systemic azole antimycotics, such as ketoconazole, and human immunodeficiency virus [HIV]-protease inhibitors, such as ritonavir), or strong inducers of CYP 3A4, i.e.

rifampicin, rifabutin, phenobarbital, phenytoin, and carbamazepine

  • Any known hepatic disease associated with coagulopathy
  • Subjects who are pregnant, breastfeeding, or are of childbearing potential, and sexually active and not practicing an effective method of birth control (e.g. surgically sterile, prescription oral contraceptives, contraceptive injections, intrauterine device, double barrier method, contraceptive patch, male partner sterilization)
  • Concomitant participation in another study with investigational drug
  • Known contraindication to any study related procedures
  • Hemoglobin ≤9 mg/dL
  • Platelet count <80x106/mL

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Aspirin and clopidogrel
aspirin 81 mg/qd plus clopidogrel 75mg/qd for 30 days
Patients on aspirin and plavix will be randomized to either continue with aspirin and plavix or to switch to aspirin and rivaroxaban
Other Names:
  • Plavix
all patients will remain on aspirin
Experimental: Aspirin and rivaroxaban from aspirin and clopidogrel
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days
all patients will remain on aspirin
Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Other Names:
  • xarelto
Active Comparator: Aspirin and prasugrel
aspirin 81 mg/qd plus prasugrel 10mg/qd for 30 days
all patients will remain on aspirin
Patients on aspirin and prasugrel will be randomized to either continue with aspirin and prasugrel or to switch to aspirin and rivaroxaban
Other Names:
  • Effient
Experimental: Aspirin and rivaroxaban from aspirin and prasugrel
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days
all patients will remain on aspirin
Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Other Names:
  • xarelto
Active Comparator: Aspirin and ticagrelor
aspirin 81 mg/qd plus ticagrelor 60mg/bid for 30 days
all patients will remain on aspirin
Patients on aspirin and ticagrelor will be randomized to either continue with aspirin and ticagrelor or to switch to aspirin and rivaroxaban
Other Names:
  • brilinta
Experimental: Aspirin and rivaroxaban from aspirin and ticagrelor
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days
all patients will remain on aspirin
Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Other Names:
  • xarelto

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Maximal Platelet Aggregation (MPA%) by Light Transmittance Aggregometry (LTA)
Time Frame: 30 days
The primary end point of this study will be the comparison of MPA% measured by LTA using the CATF cocktail as agonist between DAPT and low-dose rivaroxaban plus aspirin for each DAPT regimen
30 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Collaborators

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 6, 2019

Primary Completion (Actual)

January 31, 2022

Study Completion (Actual)

May 16, 2022

Study Registration Dates

First Submitted

June 25, 2019

First Submitted That Met QC Criteria

July 1, 2019

First Posted (Actual)

July 5, 2019

Study Record Updates

Last Update Posted (Actual)

April 26, 2023

Last Update Submitted That Met QC Criteria

April 25, 2023

Last Verified

April 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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