NCT04913779

Brief Summary

The aims of this study is to analyze the efficacy and safety of a passive immunotherapy strategy using hyperimmune equine serum known as Anti-SARS-CoV-2 elaborated by the National Institute for the Production of Biologicals (ANLIS-Malbrán) as an addition to the standard therapeutic approach for hospitalized patients with COVID-19, in patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection aged 18 to 80 years.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
200

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Jun 2021

Shorter than P25 for phase_2

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 1, 2021

Completed
Same day until next milestone

Study Start

First participant enrolled

June 1, 2021

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 4, 2021

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2021

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2021

Completed
Last Updated

September 17, 2021

Status Verified

September 1, 2021

Enrollment Period

6 months

First QC Date

June 1, 2021

Last Update Submit

September 11, 2021

Conditions

Keywords

Anti-SARS-CoV-2Purified F(ab')2 FragmentsPassive immunotherapyEquine Serum

Outcome Measures

Primary Outcomes (1)

  • Change in time needed to clinical improvement

    In subjects admitted to the general ward for active infection by SARS-CoV-2 and a clinical picture of pneumonia who receive supportive treatment recommended by the guidelines of the Ministry of Health of the Argentine Nation (Population), if slow intravenous administration of Anti SARS-CoV-2 in two doses 48 hours apart (Intervention) added to supportive treatment, compared to supportive treatment alone (patients will receive slow intravenous administration of a placebo solution in two doses 48 hours apart to maintain the "blind" as Comparator), changes the time needed to clinical improvement (Outcome), during 28 days after the assignment (Time).

    Reached each day between day 1 and 28 post-inclusion in the study

Secondary Outcomes (14)

  • Change in the number of patients in each World Health Organization (WHO) Ordinal Scale Category (0 to 8 being 0 better and 8 worse)

    days 7, 14 and 21 post-inclusion

  • Change in Mortality rate

    28 days post-inclusion

  • Change in Mechanical Ventilation Requirement rate

    28 days post-inclusion

  • Change in duration of oxygen treatment requirement

    28 days post-inclusion

  • Change in Length of Hospitalization

    28 days post-inclusion

  • +9 more secondary outcomes

Study Arms (2)

Anti-SARS-CoV-2

ACTIVE COMPARATOR

Administration of 10 ml of a concentrated equine hyperimmune serum solution with neutralizing activity of SARS-CoV-2 not less than1/5120, administered in slow intravenous infusion (10 ml diluted in100 ml of physiological solution, administered over 50 to 60 minutes in slow drip), produced by ANLIS-Malbrán, administered twice (time 0 when incorporated into the study -initial dose- and at 48 hours -second dose-).

Drug: Anti-SARS-CoV-2

Placebo

PLACEBO COMPARATOR

Administration of 10 ml of a control-solution with no-neutralizing activity of SARS-CoV-2, administered in slow intravenous infusion (10ml diluted in 100 ml of physiological solution, administered over 50 to60 minutes in slow drip), produced by ANLIS-Malbrán, administered twice (time 0when incorporated into the study -initial dose- and at 48 hours -second dose-).

Drug: Placebo

Interventions

Purified F(ab')2 Fragments of Equine hyperimmune Serum with anti-SARS-CoV-2 neutralizing activity (titer 1/5120 or higher)

Also known as: Purified F(ab')2 Fragments of Equine hyperimmune Serum, F(ab')2 Fragments, Passive Immunotherapy, Equine F(ab')2 Fragments, Hyperimmune Equine Serum, Treatment Group
Anti-SARS-CoV-2

Administration of 10 ml of a control-solution without neutralizing activity against SARS-CoV-2, administered in slow intravenous infusion (10 ml diluted in 100 ml of saline solution, administered over 50 to 60 minutes in slow drip), produced by ANLIS-Malbrán, administered twice (time 0 when incorporated into the study -initial dose- and at 48 hours -second dose-).

Also known as: Control Group
Placebo

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subjects over 18 years old and under 80 years old.
  • Positive results by RT-PCR for SARS CoV-2
  • Clinical picture compatible with respiratory compromise in the form of pneumonia attributed to COVID-19 (Stage 3, 4 or 5 according to the WHO scale), lasting up to 72 hours from the onset of symptoms to their evaluation to be incorporated into the study.
  • Patient with good disposition towards the study and that signs the informed consent.

You may not qualify if:

  • Patients with clinical disease corresponding to mild / asymptomatic forms (Absence of radiological infiltrate and risk factors, with normal auscultation and arterial saturation of oxygen (SatO2) greater than 95%)
  • Patients with clinical disease corresponding to severe forms (Severe pneumonia: presence of severity criteria (ATS / IDSA), one of two major or three minor criteria.)
  • Patients who have received other therapeutic strategies in the framework of an experimental study that make it difficult to evaluate the results obtained, including (but not limited to): convalescent plasma, lopinavir / ritonavir, hydroxychloroquine, and azithromycin.
  • Pregnant or lactating women.
  • Women of childbearing potential not using an effective contraceptive method (withdrawal, intrauterine device, or oral contraceptives).
  • History of severe anaphylactic reaction with the administration of equine plasma.
  • Patients with comorbidities that justify a risk of high mortality from causes independent of SARS-CoV-2 infection (eg, stage IV cancer)
  • Patient who does not consent to participate.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital General de Agudos Donación Francisco J. Santojanni

Buenos Aires, 1408, Argentina

RECRUITING

MeSH Terms

Conditions

COVID-19

Interventions

Immunization, PassiveControl Groups

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

ImmunizationImmunotherapyImmunomodulationBiological TherapyTherapeuticsImmunologic TechniquesInvestigative TechniquesEpidemiologic Research DesignEpidemiologic MethodsResearch DesignMethods

Study Officials

  • Guillermo A Keller, PhD

    INPB - ANLIS Malbrán

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Guillermo A Keller, MD PhD

CONTACT

Claudio Bonel, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This is an adaptive phase 2/3, randomized, blinded, placebo-controlled study. 200 total patients (ratio 1:1) will be included with intermediate evaluations when reaching the initial 20 patients (initial analysis of safety and pharmacokinetics), 100 (analysis of safety and efficacy) and 200 (final analysis).
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Physician. Specialist in internal medicine and clinical pharmacology

Study Record Dates

First Submitted

June 1, 2021

First Posted

June 4, 2021

Study Start

June 1, 2021

Primary Completion

November 30, 2021

Study Completion

December 31, 2021

Last Updated

September 17, 2021

Record last verified: 2021-09

Data Sharing

IPD Sharing
Will share

Publication of the results of all data obtained is planned.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
Time Frame
After completion of the study.
Access Criteria
By request to the Principal Investigator

Locations