| E.1 Medical condition or disease under investigation |
| E.1.1 | Medical condition(s) being investigated |
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| E.1.1.1 | Medical condition in easily understood language |
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| E.1.1.2 | Therapeutic area | Diseases [C] - Cardiovascular Diseases [C14] |
| MedDRA Classification |
| E.1.2 Medical condition or disease under investigation |
| E.1.2 | Version | 20.0 |
| E.1.2 | Level | PT |
| E.1.2 | Classification code | 10051592 |
| E.1.2 | Term | Acute coronary syndrome |
| E.1.2 | System Organ Class | 10007541 - Cardiac disorders |
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| E.1.3 | Condition being studied is a rare disease | No |
| E.2 Objective of the trial |
| E.2.1 | Main objective of the trial |
| The aim of this study is to identify patients with a recent heart attack (acute coronary syndrome), who despite standard treatment with dual antiplatelet therapy, demonstrate on a research blood test, that they have a propensity to form lasting clots (impaired endogenous fibrinolysis). We then aim to assess whether low dose rivaroxaban (in addition to dual antiplatelet therapy) can reduce the chance of clot formation (as shown on a research blood test). This would mean we can target this additional treatment to all patients who are shown to be more at risk of further clots, to reduce their future chance of a heart attack. |
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| E.2.2 | Secondary objectives of the trial |
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| E.2.3 | Trial contains a sub-study | No |
| E.3 | Principal inclusion criteria |
1. Male and female patients aged 18 years or over 2. Have a diagnosis of acute coronary syndrome requiring treatment with dual antiplatelet therapy 3. Be willing and able to understand the Participant Information Sheet and provide informed consent 4. Agree to comply with the drawing of blood samples for the assessments 5. Not meet any of the exclusion criteria below |
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| E.4 | Principal exclusion criteria |
1. Male and female participants aged < 18 years of age. 2. Patient unwilling or unable to give informed consent 3. Patients who might be pregnant or are breast-feeding 4. Active clinically significant bleeding 5. Patient who, in the opinion of the investigator, has condition considered to be a significant risk for major bleeding (such as current or recent gastrointestinal ulceration, presence of malignant neoplasm at high risk of bleeding, recent brain or spinal injury, recent brain, spinal or ophthalmic surgery, recent intracranial haemorrhage, known or suspected oesophageal varices, arteriovenous malformations, vascular aneurysms or major intraspinal or intracerebral vascular abnormalities) 6. Hepatic disease associated with coagulopathy and clinically relevant bleeding risk including cirrhotic patients with Child Pugh B and C 7. Patient with any contraindications to use of antiplatelet agents or anticoagulants 8. Hypersensitivity to the active substance or to any of the excipients listed in section 6.1 of Summary of Product Characteristics (SmPC) of Rivaroxaban 9. Concomitant treatment with any other anticoagulants e.g. unfractionated heparin (UFH), low molecular weight heparins (enoxaparin, dalteparin, etc.), heparin derivatives (fondaparinux, etc.), oral anticoagulants (warfarin, dabigatran etexilate, apixaban etc.) except under specific circumstances of switching anticoagulant therapy or when UFH is given at doses necessary to maintain an open central venous or arterial catheter 10. Concomitant treatment of ACS with antiplatelet therapy in patients with a prior stroke or a transient ischaemic attack (TIA) 11. Patient with ongoing active alcohol or substance abuse or demonstrates signs or clinical features of active substance abuse. 12. Patient with any major bleeding diathesis or blood dyscrasia at baseline (platelets<70 x 109/l, Hb<80 g/l, INR>1.4, APTT> x 2UNL, leucocyte count< 3.5x 109/l, neutrophil count<1x 109/l) 13. Patient currently enrolled in an investigational drug trial |
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| E.5 End points |
| E.5.1 | Primary end point(s) |
| The change in Lysis Time (LT) in the three treatment groups assessed using the GTT from admission to follow-up at 4 weeks. |
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| E.5.1.1 | Timepoint(s) of evaluation of this end point |
| Repeated measures ANOVA will be undertaken to evaluate LT across the 3 groups and across the 3 time points (2 weeks, 4 weeks and 8 weeks). Paired comparisons focussing on low dose rivaroxaban (Group 2) will also be performed. |
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| E.5.2 | Secondary end point(s) |
| Clinical events including re-intervention (further angioplasty), major adverse cardiac events (composite of heart attack, stroke or death) and bleeding events. |
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| E.5.2.1 | Timepoint(s) of evaluation of this end point |
| Clinical events will be evaluated at all follow up visits (2, 4, 8 weeks and 6 months post randomisation) |
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| E.6 and E.7 Scope of the trial |
| E.6 | Scope of the trial |
| E.6.1 | Diagnosis | No |
| E.6.2 | Prophylaxis | No |
| E.6.3 | Therapy | No |
| E.6.4 | Safety | No |
| E.6.5 | Efficacy | Yes |
| E.6.6 | Pharmacokinetic | No |
| E.6.7 | Pharmacodynamic | No |
| E.6.8 | Bioequivalence | No |
| E.6.9 | Dose response | No |
| E.6.10 | Pharmacogenetic | No |
| E.6.11 | Pharmacogenomic | No |
| E.6.12 | Pharmacoeconomic | No |
| E.6.13 | Others | No |
| E.7 | Trial type and phase |
| E.7.1 | Human pharmacology (Phase I) | No |
| E.7.1.1 | First administration to humans | No |
| E.7.1.2 | Bioequivalence study | No |
| E.7.1.3 | Other | No |
| E.7.1.3.1 | Other trial type description | |
| E.7.2 | Therapeutic exploratory (Phase II) | No |
| E.7.3 | Therapeutic confirmatory (Phase III) | No |
| E.7.4 | Therapeutic use (Phase IV) | Yes |
| E.8 Design of the trial |
| E.8.1 | Controlled | Yes |
| E.8.1.1 | Randomised | Yes |
| E.8.1.2 | Open | Yes |
| E.8.1.3 | Single blind | No |
| E.8.1.4 | Double blind | No |
| E.8.1.5 | Parallel group | No |
| E.8.1.6 | Cross over | No |
| E.8.1.7 | Other | No |
| E.8.2 | Comparator of controlled trial |
| E.8.2.1 | Other medicinal product(s) | Yes |
| E.8.2.2 | Placebo | No |
| E.8.2.3 | Other | No |
| E.8.2.3.1 | Comparator description |
| Clopidogrel and Ticegrelor |
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| E.8.2.4 | Number of treatment arms in the trial | 3 |
| E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
| E.8.4 | The trial involves multiple sites in the Member State concerned | No |
| E.8.4.1 | Number of sites anticipated in Member State concerned | 1 |
| E.8.5 | The trial involves multiple Member States | No |
| E.8.5.1 | Number of sites anticipated in the EEA | 0 |
| E.8.6 Trial involving sites outside the EEA |
| E.8.6.1 | Trial being conducted both within and outside the EEA | No |
| E.8.6.2 | Trial being conducted completely outside of the EEA | No |
| E.8.7 | Trial has a data monitoring committee | Yes |
| E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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| LVLS (telephonic or mail) at 6 months. |
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| E.8.9 Initial estimate of the duration of the trial |
| E.8.9.1 | In the Member State concerned years | 3 |
| E.8.9.1 | In the Member State concerned months | 0 |
| E.8.9.1 | In the Member State concerned days | 1 |
| E.8.9.2 | In all countries concerned by the trial years | 3 |
| E.8.9.2 | In all countries concerned by the trial months | 0 |
| E.8.9.2 | In all countries concerned by the trial days | 1 |