Convalescent Plasma and Placebo for the Treatment of COVID-19 Severe Pneumonia (PLASM-AR)

Hospital Italiano de Buenos Aires

Status

Completed

Conditions

COVID-19

SARS-CoV-2

SARS Virus

Treatments

Other: Convalescent SARS COVID-19 plasma

Other: Placebo

Study type

Interventional

Funder types

Other

Identifiers

NCT04383535

5565

Details and patient eligibility

About

A multicenter randomized, double-blind, placebo-controlled clinical trial of Convalescent SARS COVID-19 plasma versus Placebo to evaluate the effect between arms on an ordinal score of six mutually exclusive categories of clinical status at day 30 after study initiation.

Full description

Introduction

The use of convalescent plasma in the treatment of infectious diseases has been empirically performed for more than a century. It is based upon the assumption that providing exogenous neutralizing antibodies may provide protection while affected patients mount their own immune response. This therapeutic approach appears of particular interest in the context of the current pandemic, in which there is no specific vaccine available nor adequately proven effective pharmacological treatments.

Study purpose, hypothesis and general design

Purpose of the study: evaluate the effectiveness and safety of convalescent plasma in the treatment of SARS-CoV-2 pneumonia (Covid-19) Hypothesis: Convalescent plasma significantly improves the clinical outcome in patients with Covid-19 pneumonia and severity criteria.

Multicenter randomized, double-blind, placebo.controlled clinical trial. Placebo will be a saline solution.

Methodological sustain for including a control arm with placebo Quality evidence about the effectiveness of convalescent plasma in the treatment of Covid-19 pneumonia is not yet available. Although case series and anecdotal reports appear encouraging, the implementation of its use in routine clinical practice requires the validation through controlled clinical trials. In addition the collection, administration and control of plasma is technically demanding and needs a clear support before broadly recommending it. Different scientific institutions and international organisms had clearly suggested to prioritize the application of novel therapeutic techniques with yet unproven efficacy within the context of clinical studies over its empirical use.

On the other hand, for the present study, intervention strategy is proposed in "add-on" modality over the antiviral treatment that each participant may be already receiving, since they represent completely different therapeutic approaches. As such, participation in the present study will not condition the possibility of the participants to receive other treatments, either in intervention or control arms.

Study objectives Primary objective Analyze the difference between arms on an ordinal score of six mutually exclusive categories at day 30 after study initiation. This score includes the following categories

Enrollment

333 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Confirmed diagnosis of Covid-19 through qualitative polymerase-reverse transcriptase (qRT-PCR -GeneDX Co, Ltd o similar).
Imagining-diagnosed pneumonia (Rx or CT scan).
MSOFA score (Modified SOFA) of 2 or more (modified organic failure assessment)
Informed consent.

Exclusion criteria

Pregnant women
Women at reproductive age not willing to avoid unprotected sexual intercourse up to Day 30 after study initiation.
Women in the breastfeeding period
Patients receiving experimental treatments under development within 30 days prior to study initiation.
Patients with a previous history of allergic reactions to blood or blood-components transfusion.
Diagnosis or clinical suspicion of an alternative microbiological cause for pneumonia besides COVID-19
Use of systemic corticosteroids within 15 days prior to entering the study.