Adrecizumab in Cardiogenic Shock

Study Overview
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Brief Summary
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Cardiogenic shock is a serious medical condition with high mortality and morbidity. This trial assesses safety, tolerability and efficacy of Adrecizumab on top of standard of care in patients with cardiogenic shock.

Detailed Description
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Despite optimal treatment the mortality in patients with cardiogenic shock still exceeds 50% and surviving patients mostly suffer from severe heart failure due to an impaired cardiac function.It is hypothesized, that Adrenomedullin is a key player in the (dys)-regulation of vascular integrity. Adrecizumab is the first-in-class humanized monoclonal anti-Adrenomedullin antibody, and acts as a long-lasting plasma Adrenomedullin enhancer stabilizing barrier function at a reasonable safety profile.When the anti-Adrenomedullin antibody Adrecizumab is administered in the blood circulation at high concentrations by far exceeding those of plasma Adrenomedullin, the compartmental distribution of Adrenomedullin is altered. Adrecizumab, an IgG with a molecular weight of more than 150 kDa, is too large to freely diffuse from the blood circulation to the interstitium. With its fast association kinetics Adrecizumab quickly binds to Adrenomedullin in the blood circulation and pulls Adrenomedullin, which has been initially located in the interstitium, from this compartment to the blood circulation. The more Adrecizumab is applied, the stronger is the pulling effect and the higher the resulting concentrations of Adrecizumab-bound Adrenomedullin in the blood circulation. The increase of Adrecizumab-bound Adrenomedullin in the blood circulation occurs within 5-15 minutes after administration of Adrecizumab, since it induces a translocation of preformed Adrenomedullin. As a consequence of this redistribution, the Adrenomedullin concentration in the interstitium decreases, and less Adrenomedullin is able to act on smooth muscle cells to exert its vasodilatative activity. In the progression to cardiogenic shock, when it comes to excessive vasodilation and hypotension, administration of Adrecizumab thus can reduce vasodilation by substracting excessive levels of interstitially located Adrenomedullin.

Official Title
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Investigator-initiated, Placebo-controlled, Double-blind, Multi-center, Randomized Trial to Assess the Efficacy and Safety of Adrecizumab in Subjects With Cardiogenic Shock

Conditions
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Cardiogenic Shock, Endothelial Dysfunction

Intervention / Treatment
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* Biological: Adrecizumab
* Drug: Placebo


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: -Hospitalization for Cardiogenic shock (at the discretion of the local investigator) Cardiogenic shock is usually defined as: Systolic blood pressure < 90 mmHg > 30 min or inotropes required to maintain pressure > 90 mmHg during systole Signs of left heart insufficiency and/ or pulmonary congestion Signs of impaired organ perfusion with at least one of the following: Altered mental status Cold, clammy skin Urine output <30 ml/h Serum lactate >2mmol/l Age above 18 years at time of screening Body weight below 150 kg at time of screening Females/Males who agree to comply with the applicable contraceptive requirements of the protocol Exclusion Criteria: Cardiogenic shock due to significant arrhythmias, which include any of the following: sustained ventricular tachycardia, bradycardia with sustained ventricular rate <35 beats per minute, or atrial fibrillation/ flutter with sustained ventricular response of >160 beats per minute Cardiogenic shock due to left ventricular outflow obstruction, obstructive hypertrophic cardiomyopathy or severe aortic stenosis (i.e., aortic valve area <0.8 cm2 or mean gradient >50 mmHg on prior or current echocardiogram), and severe mitral stenosis Cardiogenic shock due to mechanical cause or severe bleeding Cardiogenic shock due to untreated clinically significant CAD requiring revascularization Resuscitation > 60 minutes Severe pre-existing hepatic disease unrelated to cardiogenic shock Severe pre-existing renal disease (dialysis) unrelated to cardiogenic shock etiology

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Adrecizumab on top of standard of care<br>8 mg/kg body weight Adrecizumab diluted in up to 100 mL saline as single dose infusion | Biological: Adrecizumab<br>* Drip infusion over 60 minutes<br>|
| Placebo Comparator: Placebo on top of standard of care<br>100 mL saline as single dose infusion | Drug: Placebo<br>* Drip infusion over 60 minutes<br>* Other names: Saline;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Need of cardiovascular organ support within the first 30 days | Number of days through day 30 without need for cardiovascular organ support, including vasopressors, or mechanical support (VA-ECMO, Impella) | 30 days | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 30-day-Mortality | All-cause mortality | 30 days | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Cardiogenic Shock, Adrecizumab, Vascular integrity, Endothelial dysfunction