Ticagrelor With Aspirin or Alone in High-Risk Patients After Coronary Intervention (TWILIGHT)
![]() |
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT02270242 |
Recruitment Status :
Completed
First Posted : October 21, 2014
Results First Posted : August 19, 2020
Last Update Posted : January 13, 2021
|
- Study Details
- Tabular View
- Study Results
- Disclaimer
- How to Read a Study Record
The purpose of this study is to compare the use of ticagrelor alone versus ticagrelor and aspirin together. Both ticagrelor and aspirin stop platelets from sticking together and forming a blood clot that could block blood flow to the heart. This study will look to determine the effectiveness and safety of ticagrelor alone, compared to ticagrelor plus aspirin in reducing clinically relevant bleeding and in reducing ischemic adverse events among high-risk patients who have had a percutaneous intervention with at least one drug-eluting stent. A patient is considered high-risk if they meet certain clinical and/or anatomic criteria.
Up to 9000 subjects will be enrolled at the time of their index PCI. Subjects meeting randomization eligibility criteria at 3 months post enrollment will be randomized to either ticagrelor plus aspirin or ticagrelor plus placebo for an additional 12 months. Follow-up clinic visits will be performed at 3 months, 9 months and 15 months post enrollment.
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Cardiovascular Disease Interventional Cardiology | Drug: Aspirin Drug: Placebo Drug: ticagrelor | Phase 4 |
This is a multicenter, prospective, blinded dual-arm study. Up to 9000 high-risk patients who have undergone successful PCI with at least one locally approved drug eluting stent discharged on DAPT with aspirin and ticagrelor of at least 3 months intended duration from centers still to be determined in the U.S., Canada, Europe and Asia. The primary objective of this study is to determine the impact of antiplatelet monotherapy with ticagrelor alone versus DAPT with ticagrelor plus aspirin for 12 months in reducing clinically relevant bleeding (efficacy) among high-risk patients undergoing PCI who have completed a 3-month course of aspirin plus ticagrelor. The secondary objective of this study is to determine the impact of antiplatelet monotherapy with ticagrelor alone versus DAPT with ticagrelor plus aspirin for 12 months in reducing major ischemic adverse events (safety) among high-risk patients undergoing PCI who have completed a 3-month course of aspirin plus ticagrelor.
Exploratory objectives include assessing the comparative safety and efficacy of the different DAPT regimens for individual components of the primary efficacy and secondary safety objectives.
The primary analysis for TWILIGHT will be performed independently by the London School of Hygiene and Tropical Medicine
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 9006 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Supportive Care |
Official Title: | Ticagrelor With Aspirin or Alone in High-Risk Patients After Coronary Intervention |
Study Start Date : | July 2015 |
Actual Primary Completion Date : | July 10, 2019 |
Actual Study Completion Date : | July 10, 2019 |

Arm | Intervention/treatment |
---|---|
Active Comparator: Aspirin + Ticagrelor
enteric coated aspirin 81mg-100mg daily p.o. for 12 months and ticagrelor 90mg tablet bid for 12 months
|
Drug: Aspirin
Other Name: Ecotrin Drug: ticagrelor Other Names:
|
Placebo Comparator: Placebo + Ticagrelor
placebo pill daily p.o. for 12 months - match for enteric coated aspirin 81mg-100mg and ticagrelor 90mg tablet bid for 12 months
|
Drug: Placebo Drug: ticagrelor Other Names:
|
- Number of Participants With BARC Type 2, 3, or 5 [ Time Frame: 12 months after randomization ]Number of participants with first occurrence of clinically relevant bleeding episode, defined as Bleeding Academic Research Consortium (BARC) Types 2, 3 or 5 bleeding. BARC bleeding types range from 0 (no bleeding) to 5 (fatal bleeding).
- Number of Participants With Ischemic Episode [ Time Frame: 12 months after randomization ]Number of participants with first occurrence of confirmed all-cause death, non-fatal myocardial infarction or stroke.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- High-risk patients who have undergone successful PCI with at least one locally approved drug eluting stent discharged on DAPT with aspirin and ticagrelor of at least 3 months intended duration will be eligible for the TWILIGHT study.
- Enrollment into the study will require meeting at least one clinical inclusion, one angiographic inclusion and none of the exclusion criteria.
Clinical Inclusion Criteria:
- Adult patients ≥ 65 years of age
- Female gender
- Troponin Positive acute coronary syndrome
- Established vascular disease defined as previous MI, documented PAD or CAD/PAD revascularization
- Diabetes mellitus treated with medications (oral hypoglycemic, subcutaneous injection of insulin)
- Chronic kidney disease defined as an estimated glomerular filtration rate (eGFR) < 60 ml/min/1.73m2 or creatinine clearance (CrCl) < 60 ml/min
Angiographic Inclusion Criteria:
- Multivessel coronary artery disease
- Target lesion requiring total stent length >30 mm
- Thrombotic target lesion(s)
- Bifurcation lesions with Medina X,1,1 classification requiring at least 2 stents
- Left main (≥50%) or proximal LAD (≥70%) lesion
- Calcified target lesion(s) requiring atherectomy
Exclusion Criteria:
- Under 18 years of age
- Contraindication to aspirin
- Contraindication to ticagrelor
- Planned surgery within 90 days
- Planned coronary revascularization (surgical or percutaneous) within 90 days
- Need for chronic oral anticoagulation
- Prior stroke
- Dialysis-dependent renal failure
- Active bleeding or extreme-risk for major bleeding (e.g. active peptic ulcer disease, gastrointestinal pathology with a raised risk for bleeding, malignancies with a raised risk for bleeding)
- Salvage PCI or STEMI presentation.
- Liver cirrhosis
- Life expectancy < 1 year
- Unable or unwilling to provide informed consent
- Women of child bearing potential. Defined: a woman is considered potential (WOBCP) following menarche and until becoming post-menopausal unless permanently sterile. Permanent sterilization methods include hysterectomy, bilateral salpingectomy and bilateral oophorectomy. a postmenopausal state is defined as no menses for 12 months without an alternative medical cause.
- Fibrinolytic therapy within 24 hours of index PCI
- Concomitant therapy with a strong cytochrome P-450 3A inhibitor or inducer
- Platelet count < 100,000 mm3
- Requiring ongoing treatment with aspirin ≥ 325 mg daily

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02270242
United States, New York | |
Icahn School of Medicine at Mount Sinai | |
New York, New York, United States, 10029 |
Principal Investigator: | Roxana Mehran, MD | Icahn School of Medicine at Mount Sinai | |
Study Director: | Usman Baber, MD | Icahn School of Medicine at Mount Sinai | |
Study Chair: | Roxana Mehran, MD | Icahn School of Medicine at Mount Sinai |
Documents provided by Roxana Mehran, Icahn School of Medicine at Mount Sinai:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Roxana Mehran, Professor, Icahn School of Medicine at Mount Sinai |
ClinicalTrials.gov Identifier: | NCT02270242 |
Other Study ID Numbers: |
GCO 14-1383 |
First Posted: | October 21, 2014 Key Record Dates |
Results First Posted: | August 19, 2020 |
Last Update Posted: | January 13, 2021 |
Last Verified: | December 2020 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
PCI DAPT ticagrelor aspirin |
Cardiovascular Diseases Aspirin Ticagrelor Anti-Inflammatory Agents, Non-Steroidal Analgesics, Non-Narcotic Analgesics Sensory System Agents Peripheral Nervous System Agents Physiological Effects of Drugs Anti-Inflammatory Agents Antirheumatic Agents Fibrinolytic Agents |
Fibrin Modulating Agents Molecular Mechanisms of Pharmacological Action Platelet Aggregation Inhibitors Cyclooxygenase Inhibitors Enzyme Inhibitors Antipyretics Purinergic P2Y Receptor Antagonists Purinergic P2 Receptor Antagonists Purinergic Antagonists Purinergic Agents Neurotransmitter Agents |