Trial Outcomes & Findings for Switching From DAPT to Dual Pathway Inhibition With Low-dose Rivaroxaban in Adjunct to Aspirin in Patients With Coronary Artery Disease (NCT NCT04006288)

NCT ID: NCT04006288

Last Updated: 2023-04-26

Results Overview

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

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

90 participants

Primary outcome timeframe

30 days

Results posted on

2023-04-26

Participant Flow

Patients treated with either aspirin (81mg/qd) plus clopidogrel, aspirin (81mg/qd) plus ticagrelor (90mg/bid), or aspirin (81mg/qd) plus prasugrel (10mg/bid) were identified. Each cohort was randomized 1:1 to either maintain DAPT or to DPI. DPI consists in treatment with aspirin (81mg/qd) plus rivaroxaban (2.5mg/bid). Patients randomized to DAPT will continue their guideline recommended DAPT regimens.

Participant milestones

Participant milestones
Measure
Aspirin and Clopidogrel
aspirin 81 mg/qd plus clopidogrel 75mg/qd for 30 days Clopidogrel: Patients on aspirin and plavix will be randomized to either continue with aspirin and plavix or to switch to aspirin and rivaroxaban aspirin: all patients will remain on aspirin
Aspirin and Rivaroxaban From Aspirin and Clopidogrel
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days aspirin: all patients will remain on aspirin rivaroxaban: Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Aspirin and Prasugrel
aspirin 81 mg/qd plus prasugrel 10mg/qd for 30 days Prasugrel: Patients on aspirin and prasugrel will be randomized to either continue with aspirin and prasugrel or to switch to aspirin and rivaroxaban aspirin: all patients will remain on aspirin
Aspirin and Rivaroxaban From Aspirin and Prasugrel
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days aspirin: all patients will remain on aspirin rivaroxaban: Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Aspirin and Ticagrelor
aspirin 81 mg/qd plus ticagrelor 60mg/bid for 30 days ticagrelor: Patients on aspirin and ticagrelor will be randomized to either continue with aspirin and ticagrelor or to switch to aspirin and rivaroxaban aspirin: all patients will remain on aspirin
Aspirin and Rivaroxaban From Aspirin and Ticagrelor
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days aspirin: all patients will remain on aspirin rivaroxaban: Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Overall Study
STARTED
15
15
15
15
15
15
Overall Study
COMPLETED
14
14
15
15
15
15
Overall Study
NOT COMPLETED
1
1
0
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

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

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Aspirin and Clopidogrel
n=15 Participants
aspirin 81 mg/qd plus clopidogrel 75mg/qd for 30 days Clopidogrel: Patients on aspirin and plavix will be randomized to either continue with aspirin and plavix or to switch to aspirin and rivaroxaban aspirin: all patients will remain on aspirin
Aspirin and Rivaroxaban From Aspirin and Clopidogrel
n=15 Participants
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days aspirin: all patients will remain on aspirin rivaroxaban: Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Aspirin and Prasugrel
n=15 Participants
aspirin 81 mg/qd plus prasugrel 10mg/qd for 30 days Prasugrel: Patients on aspirin and prasugrel will be randomized to either continue with aspirin and prasugrel or to switch to aspirin and rivaroxaban aspirin: all patients will remain on aspirin
Aspirin and Rivaroxaban From Aspirin and Prasugrel
n=15 Participants
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days aspirin: all patients will remain on aspirin rivaroxaban: Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Aspirin and Ticagrelor
n=15 Participants
aspirin 81 mg/qd plus ticagrelor 60mg/bid for 30 days ticagrelor: Patients on aspirin and ticagrelor will be randomized to either continue with aspirin and ticagrelor or to switch to aspirin and rivaroxaban aspirin: all patients will remain on aspirin
Aspirin and Rivaroxaban From Aspirin and Ticagrelor
n=15 Participants
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days aspirin: all patients will remain on aspirin rivaroxaban: Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Total
n=90 Participants
Total of all reporting groups
Age, Continuous
63.4 years
STANDARD_DEVIATION 7.9 • n=5 Participants
64.1 years
STANDARD_DEVIATION 7.2 • n=7 Participants
61.1 years
STANDARD_DEVIATION 6.6 • n=5 Participants
61.1 years
STANDARD_DEVIATION 9.0 • n=4 Participants
56.5 years
STANDARD_DEVIATION 8.8 • n=21 Participants
60.9 years
STANDARD_DEVIATION 9.4 • n=8 Participants
61.3 years
STANDARD_DEVIATION 8.4 • n=8 Participants
Sex: Female, Male
Female
7 Participants
n=5 Participants
10 Participants
n=7 Participants
12 Participants
n=5 Participants
12 Participants
n=4 Participants
8 Participants
n=21 Participants
11 Participants
n=8 Participants
60 Participants
n=8 Participants
Sex: Female, Male
Male
8 Participants
n=5 Participants
5 Participants
n=7 Participants
3 Participants
n=5 Participants
3 Participants
n=4 Participants
7 Participants
n=21 Participants
4 Participants
n=8 Participants
30 Participants
n=8 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
0 Participants
n=8 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
0 Participants
n=8 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
0 Participants
n=8 Participants
Race (NIH/OMB)
Black or African American
6 Participants
n=5 Participants
6 Participants
n=7 Participants
4 Participants
n=5 Participants
3 Participants
n=4 Participants
5 Participants
n=21 Participants
4 Participants
n=8 Participants
28 Participants
n=8 Participants
Race (NIH/OMB)
White
9 Participants
n=5 Participants
9 Participants
n=7 Participants
10 Participants
n=5 Participants
12 Participants
n=4 Participants
10 Participants
n=21 Participants
11 Participants
n=8 Participants
61 Participants
n=8 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
0 Participants
n=8 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
1 Participants
n=8 Participants
Region of Enrollment
United States
15 Participants
n=5 Participants
15 Participants
n=7 Participants
15 Participants
n=5 Participants
15 Participants
n=4 Participants
15 Participants
n=21 Participants
15 Participants
n=8 Participants
90 Participants
n=8 Participants
Diabetes mellitus
11 Participants
n=5 Participants
9 Participants
n=7 Participants
10 Participants
n=5 Participants
5 Participants
n=4 Participants
12 Participants
n=21 Participants
7 Participants
n=8 Participants
54 Participants
n=8 Participants
Previous percutaneous coronary intervention
13 Participants
n=5 Participants
12 Participants
n=7 Participants
15 Participants
n=5 Participants
15 Participants
n=4 Participants
15 Participants
n=21 Participants
15 Participants
n=8 Participants
85 Participants
n=8 Participants

PRIMARY outcome

Timeframe: 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

Outcome measures

Outcome measures
Measure
Aspirin and Clopidogrel
n=14 Participants
aspirin 81 mg/qd plus clopidogrel 75mg/qd for 30 days Clopidogrel: Patients on aspirin and plavix will be randomized to either continue with aspirin and plavix or to switch to aspirin and rivaroxaban aspirin: all patients will remain on aspirin
Aspirin and Rivaroxaban From Aspirin and Clopidogrel
n=14 Participants
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days aspirin: all patients will remain on aspirin rivaroxaban: Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Aspirin and Prasugrel
n=15 Participants
aspirin 81 mg/qd plus prasugrel 10mg/qd for 30 days Prasugrel: Patients on aspirin and prasugrel will be randomized to either continue with aspirin and prasugrel or to switch to aspirin and rivaroxaban aspirin: all patients will remain on aspirin
Aspirin and Rivaroxaban From Aspirin and Prasugrel
n=15 Participants
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days aspirin: all patients will remain on aspirin rivaroxaban: Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Aspirin and Ticagrelor
n=15 Participants
aspirin 81 mg/qd plus ticagrelor 60mg/bid for 30 days ticagrelor: Patients on aspirin and ticagrelor will be randomized to either continue with aspirin and ticagrelor or to switch to aspirin and rivaroxaban aspirin: all patients will remain on aspirin
Aspirin and Rivaroxaban From Aspirin and Ticagrelor
n=15 Participants
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days aspirin: all patients will remain on aspirin rivaroxaban: Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Maximal Platelet Aggregation (MPA%) by Light Transmittance Aggregometry (LTA)
27 percentage of MPA
Interval 17.0 to 50.0
53 percentage of MPA
Interval 43.0 to 66.0
20 percentage of MPA
Interval 4.0 to 37.0
4 percentage of MPA
Interval 0.0 to 17.0
15 percentage of MPA
Interval 1.0 to 33.0
20 percentage of MPA
Interval 6.0 to 50.0

Adverse Events

Aspirin and Clopidogrel

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Aspirin and Rivaroxaban From Aspirin and Clopidogrel

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Aspirin and Prasugrel

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Aspirin and Rivaroxaban From Aspirin and Prasugrel

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Aspirin and Ticagrelor

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Aspirin and Rivaroxaban From Aspirin and Ticagrelor

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Aspirin and Clopidogrel
n=15 participants at risk
aspirin 81 mg/qd plus clopidogrel 75mg/qd for 30 days Clopidogrel: Patients on aspirin and plavix will be randomized to either continue with aspirin and plavix or to switch to aspirin and rivaroxaban aspirin: all patients will remain on aspirin
Aspirin and Rivaroxaban From Aspirin and Clopidogrel
n=15 participants at risk
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days aspirin: all patients will remain on aspirin rivaroxaban: Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Aspirin and Prasugrel
n=15 participants at risk
aspirin 81 mg/qd plus prasugrel 10mg/qd for 30 days Prasugrel: Patients on aspirin and prasugrel will be randomized to either continue with aspirin and prasugrel or to switch to aspirin and rivaroxaban aspirin: all patients will remain on aspirin
Aspirin and Rivaroxaban From Aspirin and Prasugrel
n=15 participants at risk
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days aspirin: all patients will remain on aspirin rivaroxaban: Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Aspirin and Ticagrelor
n=15 participants at risk
aspirin 81 mg/qd plus ticagrelor 60mg/bid for 30 days ticagrelor: Patients on aspirin and ticagrelor will be randomized to either continue with aspirin and ticagrelor or to switch to aspirin and rivaroxaban aspirin: all patients will remain on aspirin
Aspirin and Rivaroxaban From Aspirin and Ticagrelor
n=15 participants at risk
aspirin 81mg/qd plus rivaroxaban 2.5mg/bid for 30 days aspirin: all patients will remain on aspirin rivaroxaban: Patients on DAPT will be randomized to either continue with DAPT or to switch to aspirin and rivaroxaban
Cardiac disorders
Bleeding
0.00%
0/15 • At 30 days.
Ischemic and bleeding according to the Bleeding Academic Research Consortium (BARC) definition.
6.7%
1/15 • Number of events 1 • At 30 days.
Ischemic and bleeding according to the Bleeding Academic Research Consortium (BARC) definition.
0.00%
0/15 • At 30 days.
Ischemic and bleeding according to the Bleeding Academic Research Consortium (BARC) definition.
0.00%
0/15 • At 30 days.
Ischemic and bleeding according to the Bleeding Academic Research Consortium (BARC) definition.
0.00%
0/15 • At 30 days.
Ischemic and bleeding according to the Bleeding Academic Research Consortium (BARC) definition.
0.00%
0/15 • At 30 days.
Ischemic and bleeding according to the Bleeding Academic Research Consortium (BARC) definition.

Additional Information

Dr. Dominick J Angiolillo. Professor of med University of Florida College of Medicine-Jacksonville

University of Florida

Phone: 904-244-3378

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place