E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
ST-elevation myocardial infarction |
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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 | LLT |
E.1.2 | Classification code | 10064345 |
E.1.2 | Term | ST segment elevation myocardial infarction |
E.1.2 | System Organ Class | 100000004849 |
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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 primary objective is to compare the effect of a single injection of two doses of rituximab versus placebo on 6 months left ventricular systolic function, using CMR, in patients who have had an acute anterior STEMI |
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E.2.2 | Secondary objectives of the trial |
The secondary endpoints will be assessed by comparing the effects of rituximab versus placebo on:
• Infarct size by CMRI (using T1-weighted late gadolinium enhancement, LGE) between day 3 and day 7 (52) and at 6 months.
• Edema extension by CMRI (using T2W) between day 3 and day 7 (5±2)
• T2 relaxation time at ischemic region by CMRI (using T2 mapping) between day 3 and day 7 (5±2)
• Microvascular obstruction by CMRI (hypointense areas within LGE) between day 3 and day 7 (5±2)
• NT-pro-BNP at 6 months
• Any adverse event related to treatment
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
• Age 18-75 (women must be either postmenopausal defined as being amenorrhoeic for greater than 2 years with an appropriate clinical profile, e.g. age appropriate (>55 years old), history of vasomotor symptoms) or having documented hysterectomy and/or bilateral oophorectomy) ;
• Clinical evidence at presentation of anterior ST-elevation myocardial infarction (STEMI) defined as symptoms suggestive of acute myocardial ischemia, an electrocardiogram showing ST-segment elevation ≥2 mm in ≥2 contiguous leads in V1 to V4;
• Complete occlusion (i.e. TIMI flow 0-1) of proximal or mid left anterior descending (LAD) coronary artery on urgent angiography interpreted as the infarct-related artery (IRA);
• Onset of worse symptoms within 6 hours before admission;
• Plan to provide primary percutaneous angioplasty (PPCI) for the patient within 2 hours of ECG diagnosis ;
• Ability to start infusion of rituximab within 3 hours of PPCI ;
• Written informed consent. |
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E.4 | Principal exclusion criteria |
• History of previous MI
• Presentation with cardiac arrest
• Cardiogenic shock (defined as systolic blood pressure <90 mmHg for >30minutes, or necessitating vasopressors to achieve a blood pressure ≥90 mmHg)
• Cardiac electrical instability (defined as complete heart block needing temporary pacing or any tachyarrhythmia needing cardioversion)
• Patients with Killip class III heart failure
• History of severe chronic renal failure (define as stage 4 (GFR = 15-29 mL/min) or worse)
• History of hepatitis B, HIV or tuberculosis
• Patient positive for point of care bedside test of Ag HBs
• Current infections
• Presence, or history in ≤ five years, of an ongoing cancer, (except in situ cancer of the cervix or basal cell carcinoma)
• QTcF> 450 msecs in males, > 470msecs in females
• Any oral or intravenous immunosuppressive treatment, immune modulatory monoclonal antibodies or immunodepleting therapy at any time (inhalers and topical creams with corticosteroids are permitted)
• Previous history of major organ transplant including renal transplant
• Known hypersensitivity to the active substance of Mabthera® (rituximab) or to proteins of murine origin, or to any of the other excipients
• Expected need for vaccination with a live attenuated vaccine during the study, including incomplete vaccination courses (in case, life, attenuated vaccine must be administered at least 30 days before inclusion in study)
• Absence of COVID-19 vaccination (at least one dose of COVID-19 vaccination is needed for inclusion at least 4 weeks before inclusion in the study)
• Any obvious contraindications for MRI or conditions which will impede image acquisition
• Known hepatic failure
• Previous history of progressive multifocal leukoencephalopathy
• Inclusion in other interventional drug study within the previous 3 months
• Inability to comply with study procedures |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary endpoint is the left ventricular ejection fraction (LVEF) by CMR at 6 months |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
The secondary endpoints will be assessed by comparing the effects of rituximab versus placebo on:
• Infarct size by CMRI (using T1-weighted late gadolinium enhancement, LGE) between day 3 and day 7 (52) and at 6 months.
• Edema extension by CMRI (using T2W) between day 3 and day 7 (5±2)
• T2 relaxation time at ischemic region by CMRI (using T2 mapping) between day 3 and day 7 (5±2)
• Microvascular obstruction by CMRI (hypointense areas within LGE) between day 3 and day 7 (5±2)
• NT-pro-BNP at 6 months
• Any adverse event related to treatment
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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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 | Yes |
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) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
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) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
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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
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 20 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 10 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Israel |
Germany |
Netherlands |
Spain |
Sweden |
United Kingdom |
Czechia |
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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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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 4 |
E.8.9.1 | In the Member State concerned months | 4 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 4 |
E.8.9.2 | In all countries concerned by the trial months | 4 |