Anti-C5a antibody (vilobelimab) therapy for critically ill, invasively mechanically ventilated patients with COVID-19 (PANAMO): a multicentre, double-blind, randomised, placebo-controlled, phase 3 trial

BACKGROUND

Vilobelimab, an anti-C5a monoclonal antibody, was shown to be safe in a phase 2 trial of invasively mechanically ventilated patients with COVID-19. Here, we aimed to determine whether vilobelimab in addition to standard of care improves survival outcomes in this patient population.

METHODS

This randomised, double-blind, placebo-controlled, multicentre phase 3 trial was performed at 46 hospitals in the Netherlands, Germany, France, Belgium, Russia, Brazil, Peru, Mexico, and South Africa. Participants aged 18 years or older who were receiving invasive mechanical ventilation, but not more than 48 h after intubation at time of first infusion, had a PaO2/FiO2 ratio of 60-200 mm Hg, and a confirmed SARS-CoV-2 infection with any variant in the past 14 days were eligible for this study. Eligible patients were randomly assigned (1:1) to receive standard of care and vilobelimab at a dose of 800 mg intravenously for a maximum of six doses (days 1, 2, 4, 8, 15, and 22) or standard of care and a matching placebo using permuted block randomisation. Treatment was not continued after hospital discharge. Participants, caregivers, and assessors were masked to group assignment. The primary outcome was defined as all-cause mortality at 28 days in the full analysis set (defined as all randomly assigned participants regardless of whether a patient started treatment, excluding patients randomly assigned in error) and measured using Kaplan-Meier analysis. Safety analyses included all patients who had received at least one infusion of either vilobelimab or placebo. This study is registered with ClinicalTrials.gov, NCT04333420.

FINDINGS

From Oct 1, 2020, to Oct 4, 2021, we included 368 patients in the ITT analysis (full analysis set; 177 in the vilobelimab group and 191 in the placebo group). One patient in the vilobelimab group was excluded from the primary analysis due to random assignment in error without treatment. At least one dose of study treatment was given to 364 (99%) patients (safety analysis set). 54 patients (31%) of 177 in the vilobelimab group and 77 patients (40%) of 191 in the placebo group died in the first 28 days. The all-cause mortality rate at 28 days was 32% (95% CI 25-39) in the vilobelimab group and 42% (35-49) in the placebo group (hazard ratio 0·73, 95% CI 0·50-1·06; p=0·094). In the predefined analysis without site-stratification, vilobelimab significantly reduced all-cause mortality at 28 days (HR 0·67, 95% CI 0·48-0·96; p=0·027). The most common TEAEs were acute kidney injury (35 [20%] of 175 in the vilobelimab group vs 40 [21%] of 189 in the placebo), pneumonia (38 [22%] vs 26 [14%]), and septic shock (24 [14%] vs 31 [16%]). Serious treatment-emergent adverse events were reported in 103 (59%) of 175 patients in the vilobelimab group versus 120 (63%) of 189 in the placebo group.

INTERPRETATION

In addition to standard of care, vilobelimab improves survival of invasive mechanically ventilated patients with COVID-19 and leads to a significant decrease in mortality. Vilobelimab could be considered as an additional therapy for patients in this setting and further research is needed on the role of vilobelimab and C5a in other acute respiratory distress syndrome-causing viral infections.

FUNDING

InflaRx and the German Federal Government.

P5310College students under stress have elevated cardiovascular risk factors associated to eating disorders

Background

High prevalence of cardiovascular diseases in the global adult population refers to the need for prevention. Tracking phenomenon studies have inferred that since childhood, risk and protection factors can be identified, thus supporting public health policies.

Purpose

To evaluate the prevalence of stress and the cardiovascular risk factor in Brazilian students.

Methods

A cross-sectional study was carried out in our city with 3,471 students, both sexes, from 7 to 13 years old, 51.7% of whom were non-Caucasian, aiming to analyze 31 variables: a) biological markers for cardiovascular risk (weight, height, waist circumference, systolic blood pressure, diastolic blood pressure, heart rate, HDL cholesterol, LDL cholesterol, total cholesterol, triglycerides, use of medications); b) health-related behavioural variables (ingestion of fruits, vegetables, meats, fish, dairy products, sweets, sugary drinks, fast food, snacks, lunch at home or at school, daily study hours, physical activity at school and out of school, means of transport to go to school, screen time); c) emotional variables (perceived stress at school and at home); d) socio-demographic data (sex, age, ethnicity). Data were collected in schools and tabulated; Network analysis considered 16 composite variables.

Results

A total of 17.5% of obesity and 16.2% of overweight verified at the studied population. Children and adolescents, under stress, are shown to have higher cholesterol levels, followed by increased use of medications or supplements, and increased physical activity, higher ratios for boys and non-white ethnicity individuals. Eating lunch provided by the school and being a female served as a protective factor for cardiovascular risk.

Conclusion

Considering the already known impact of stress on children's physical and psychological development and cardiovascular risk, it is urgent to establish public policies aimed at preventing these conditions, which have been severely perceived in very young, non-white and resident of a periphery of metropolises individuals.

P6368Blood pressure control in a registry of clinical practice, PINNACLE-BRAZIL REGISTRY

Introduction

The prevalence of hypertension is estimated to be nearly 50% among Brazilian adults. Achieving an adequate control of this CVD risk factor is challenging but truly relevant on a public health perspective, as this is the top-ranking cause of all deaths globally.

Purpose

We aimed to describe crude and simple metrics of blood pressure management (including its control), as based on current guideline-derived recommendations, after one year of the clinical practice registry

Methods

Patients with documented Hypertension were included by using electronic case report form based on the ACC PINNACLE Registry. The registry has been enrolling patients from general practitioners and specialists. The main goal of the PINNACLE program is to improve the quality of care in “real world” clinical practice. Patients data were evaluated after 01 year of follow-up on regular clinical appointments and the differences on clinical practice were evaluated

Results

Currently, PINNACLE-Brazil has enrolled 7598 patients, with 87% of diagnosed hypertension. Percentage of patients with a diagnosis of hypertension who had a blood pressure measurement <140/90 mmHg was 47.9% (baseline) and 57.3% (follow-up). Percentage of patients who had a blood pressure <140/90 mm Hg, or who had a blood pressure ≥140/90 mm Hg and were prescribed ≥2 antihypertensive medications were 67.1% on baseline and 71.2% after 1 year.

Conclusion

The preliminary data of PINNACLE Registry in Brazil shows that a significant proportion of hypertensive patients (nearly half) have not presented with adequate control of blood pressure levels and, moreover, a large proportion have not been treated with recommended combination of 02 or more antihypertensive medications to reach targeted BP levels the quality of care was improving after 01 year of registry.

Acknowledgement/Funding

ACC Foundation

P6444Cardiovascular secondary prevention setting and lipid controlu, update data from PINNACLE BRAZIL REGISTRY

Introduction

Lipid control is highly effective and improves clinical outcomes in coronary artery disease (CAD) patients, thus is one of the pillars of the cardiovascular secondary prevention.

Purpose

The aim of this preliminary analysis was to describe the lipid management in CAD patients in Brazil after one year of the clinical practice registry.

Methods

Patients with documented CAD were included by using electronic case report form based on the ACC PINNACLE Registry. The registry has been enrolling patients from general practitioners and specialists. Patients data were evaluated after 01 year of follow-up on regular clinical appointments and the differences on clinical practice were evaluated

Results

Currently, PINNACLE-Brazil enrolled individuals, with 2234 (29.4%) patients with CAD. Prescription of statin therapy was identified in 85.6% baseline and 78.3% follow-up. CAD patients with LDL-c <100 mg/dL were 47.3% baseline and 38.5% follow-up and at least one lipid profile assessment occurred in 60.9% baseline and 51.2% follow-up. CAD patients who have an LDL-c result <100 mg/dL, or >100 mg/dL with a documented plan to achieve LDL-c <100 mg/dL, were 48.1% (baseline) and 38.5% (follow-up).

Conclusion

The preliminary results of PINNACLE-Brazil show that, despite the relatively high prescription rate of statin therapy, LDL-c targeted level for CVD secondary prevention has not been achieved in the majority of patients after 01 year of follow-up. Nationwide knowledge translation initiatives are needed to improve the CVD burden in Brazil

Acknowledgement/Funding

ACC Foundation