Evaluation of Early CRRT InTerventions in Patients With ECMO(ELITE)
NCT ID: NCT03549923
Last Updated: 2024-04-24
Study Results
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Basic Information
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COMPLETED
PHASE4
131 participants
INTERVENTIONAL
2018-12-18
2023-05-01
Brief Summary
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Plasma catecholamine levels can be very high in patients under VA-ECMO, which maybe toxic to the cardiac myocardium. Beta-blockers can antagonize the effects of catecholamine. In patients with VA-ECMO, the protective effect of beta-blocker may improve the patients' outcome. This hypothesis also need to be tested in RCT.
ELITE (Evaluation of Early CRRT and Beta-blocker InTerventions in Patients with ECMO) study is a factorial designed RCT with the purpose to test the benefit of early CRRT and beta-blocker in patients treated with V-A ECMO. In the CRRT arm, patients will be randomized to simultaneous CRRT (not late than 24 hours after the initiation of ECMO) or routine therapy (CRRT when indicated). In the beta-blocker arm, patients will be randomized to beta-blocker treatment with a heart rate target of 75±5 bpm or routine therapy. The primary outcome is all-cause mortality at 30 days. Patients discharged alive will be followed for 1 year. Data of mortality and quality of life which are secondary outcomes of this study, will be collected.
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Detailed Description
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Extracorporeal membrane oxygenation (ECMO) is of great value in supporting patients with severe cardiopulmonary failure, but the mortality rate is still high.
Acute kidney injury (AKI) and fluid overload (FO) are the leading causes of death in patients under Veno-arterial (VA) ECMO. Continuous renal replacement therapy (CRRT) is an effective way to remove toxic substances and provide fluid management. According to current guidelines, CRRT is withhold until at least one of the following criteria is met: severe hyperkalemia (\> 6.5 mmol/L), metabolic acidosis (pH \< 7.2), pulmonary edema, blood urea nitrogen level \> 112 mg/dL, or oliguria (urine output \< 200 mL/12h) for more than 72 hours. However, fluid overload and metabolic disorders may cause irreversible damage to the patient and therefore increase mortality. The hypothesis of ELITE study is that simultaneous CRRT may provide better fluid management and avoid metabolic disorders, and bring survival benefit in VA-ECMO patients.
Patients under VA-ECMO are critically ill with high plasma catecholamine levels and treatment of various inotropic agents, which are toxic to the failed myocardium. Beta-blockers can antagonize the effects of endogenous and exogenous catecholamines. The hypothesis of ELITE study is that beta-blocker may protect the failing heart function and reduce 30-day mortality.
Study design:
ELITE study is a prospective, multi-centered, open, 2×2 factorial randomized controlled clinical trial.
In the simultaneous CRRT versus conventional-indication CRRT arm, patients under VA-ECMO will be randomized to the following 2 groups:
1. Simultaneous CRRT group: CRRT is initiated simultaneously (not late than 24 hours from the initiation of ECMO treatment), regardless of presentation of conventional indication of CRRT. CRRT lasts for 12 hours or more is recommended.The physician can decide when to withdraw CRRT based on the patient's condition.
2. Conventional-indication CRRT group: CRRT is not initiated unless conventional indication of CRRT is presented. The conventional indication of CRRT is as follow: KDIGO stage 3 AKI and one of the following criteria is met: severe hyperkalemia (\> 6.5 mmol/L), metabolic acidosis (pH \< 7.2), pulmonary edema, blood urea nitrogen level \>112 mg/dL, or oliguria (urine output \< 200 mL/12 h) for more than 72 hours.
In the Beta-blocker versus routine therapy arm, patients with a maintaining dosage of dopamine/dobutamine \<5 μg/kg/min, and with neither epinephrine nor norepinephrine will be randomized to the following 2 groups:
1. Esmolol group: Patients will receive a continuous esmolol infusion in addition to routine management. The esmolol infusion commences at 25 mg/h and increases by 25 mg/h every 20-minute until the maximal tolerate dosage is reached or the heart rate reduced to 75±5 bpm, or an upper dose limit of 2000 mg/h is reached. Continue infusing esmolol to maintain the heart rate threshold or at the discretion of the physician until either ICU discharge or death. Oral beta-blockers should be considered before the withdrawal of esmolol.
2. Control group: All beta-blockers, including esmolol, should not be used during ICU treatment, unless the doctor thinks there's a strong indication.
Primary outcome: All-cause mortality at 30 days.
Secondary outcomes:
1. All-cause mortality at 365 days
2. Proportion of patients with long-term RRT indicated
3. Success rate of weaning from ECMO: defined as survive \> 24 hours after weaning
4. Any serious adverse events (SAEs), including bleeding, severe arrhythmias, ventilator associated pneumonia, hemorrhagic infection, surgical site infection, any reason induced limb ischemia, stroke and any adverse events that the physician regards as serious.
5. EQ-5D score at 365 days
6. Duration stay at ICU and hospital.
7. Unplanned readmission to hospital.
8. Cause-specific mortality
Sample size consideration:
The sample size calculations are based on the following hypothesis: (a) an estimate 30-day mortality of 70% in the control group; (b) a 20% relative risk reduction for each intervention alone (simultaneous CRRT and beta-blocker); (c) no loss to follow-up; (d) no interaction of the two interventions.
For each intervention, we calculated that a sample size of 496 patients would be required, 248 patients for the treatment group and 248 patients for the control group. In the 2 × 2 factorial design, patients will be randomized to one of four arms, the sample size of each would be 124 patients. With a crossover rate of 10%, the study will randomize 548 patients, 137 patients per arm.
Conditions
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Study Design
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RANDOMIZED
FACTORIAL
TREATMENT
NONE
Study Groups
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Simultaneous CRRT group
CRRT is initiated simultaneously (not late than 24 hours from the initiation of ECMO treatment), regardless of presentation of conventional indication of CRRT. CRRT lasts for 12 hours or more is recommended.The physician can decide when to withdraw CRRT based on the patient's condition.
Simultaneous CRRT
The patients in the simultaneous CRRT group will receive CRRT within 24 hours after the initiation of ECMO support.
Conventional-indication CRRT group
CRRT is not initiated unless conventional indication of CRRT is presented. The conventional indication of CRRT is as follow: KDIGO stage 3 AKI and one of the following criteria is met: severe hyperkalemia (\> 6.5 mmol/L), metabolic acidosis (pH \< 7.2), pulmonary edema, blood urea nitrogen level \>112 mg/dL, or oliguria (urine output \< 200 mL/12 h) for more than 72 hours.
Conventional-indication CRRT
The patients in the conventional-indication group will not receive CRRT until the patient demonstrates AKI and fulfills any one of the criteria of the conventional CRRT indication.
Esmolol group
Patients will receive a continuous esmolol infusion in addition to routine management. The esmolol infusion commences at 25 mg/h and increases by 25 mg/h every 20-minute until the maximal tolerate dosage is reached or the heart rate reduced to 75±5 bpm, or an upper dose limit of 2000 mg/h is reached. Continue infusing esmolol to maintain the heart rate threshold or at the discretion of the physician until either ICU discharge or death. Oral beta-blockers should be considered before the withdrawal of esmolol.
Esmolol
The patients in esmolol group will receive a continuous esmolol infusion in addition to the standard care.
Control group
All beta-blockers, including esmolol, should not be used during ICU treatment, unless the doctor thinks there's a strong indication.
Standard care
The patients in control group will not receive any beta-blockers, including esmolol, unless the doctor thinks there's a strong indication.
Interventions
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Simultaneous CRRT
The patients in the simultaneous CRRT group will receive CRRT within 24 hours after the initiation of ECMO support.
Conventional-indication CRRT
The patients in the conventional-indication group will not receive CRRT until the patient demonstrates AKI and fulfills any one of the criteria of the conventional CRRT indication.
Esmolol
The patients in esmolol group will receive a continuous esmolol infusion in addition to the standard care.
Standard care
The patients in control group will not receive any beta-blockers, including esmolol, unless the doctor thinks there's a strong indication.
Eligibility Criteria
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Inclusion Criteria
2. Provision of informed consent
1. Patients receiving VA-ECMO support for any reason.
2. Dopamine/dobutamine \<5 μg/kg/min, no administration of adrenaline or norepinephrine.
3. Within 7 days after initiation of VA-ECMO
Exclusion Criteria
2. Patients with convention indication of CRRT: AKI prior to enrollment caused by any reason, at least one of the following criteria is met: severe hyperkalemia (\> 6.5 mmol/L), metabolic acidosis (pH \< 7.2), pulmonary edema, blood urea nitrogen level \> 112 mg/dL, or oliguria (urine output \< 200 mL/12h) for more than 72 hours.
3. CKD with estimated GFR\<30 mL/min
4. Have already initiated CRRT
5. Active hemorrhage/thrombotic thrombocytopenic purpura
6. Respiratory failure has already initiated VV-ECMO or extracorporeal carbon dioxide removal device before the initiation of VA-ECMO of this time.
7. Prepared for heart transplant or patients received heart transplant.
1. Age \< 18 years
2. Contraindications or intolerance to beta-blockers
* Moderate or severe bronchial asthma attack or history of bronchial asthma
* Sinus bradycardia (heart rate \< 60 bpm)
* Type II second-degree or third-degree AVB
* Allergy to esmolol
3. For women at child bearing age, pregnant or positive pregnancy test.
4. Respiratory failure has already initiated VV-ECMO or extracorporeal carbon dioxide removal device before the initiation of VA-ECMO of this time
5. Have been on beta-blocker treatment after initiation of ECMO
6. Prepared for heart transplant or patients received heart transplant.
18 Years
ALL
No
Sponsors
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The First Affiliated Hospital of Zhengzhou University
OTHER
Beijing Anzhen Hospital
OTHER
Responsible Party
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Jianzeng Dong
Director of Heart Failure Center
Principal Investigators
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Jianzeng Dong, PhD., Md.
Role: PRINCIPAL_INVESTIGATOR
Beijing Anzhen Hospital
Locations
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Beijing Anzhen Hospital
Beijing, , China
Countries
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References
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Other Identifiers
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2016YFC1301000
Identifier Type: -
Identifier Source: org_study_id
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