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Safety and Efficacy of Anti-SARS-CoV-2 Equine Antibody F(ab')2 Fragments (INOSARS) for Adult Patients With Mild COVID-19

Phase I, Randomized, Placebo-controlled, Double-blind, Study to Evaluate the Safety and Antiviral Efficacy of Three Different Single Doses of Anti-SARS-CoV-2 Equine Antibody F(ab')2 Fragments (INOSARS) in Adult Patients With Mild COVID-19

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04514302
Enrollment
32
Registered
2020-08-14
Start date
2021-12-07
Completion date
2022-08-01
Last updated
2023-01-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19

Keywords

COVID-19, SARS-CoV-2, Immunoglobulin fragments, Hyperimmune equine serum, Passive immunotherapy

Brief summary

This is a randomized, placebo-controlled, double-blind phase I clinical study of anti-SARS-CoV-2 equine immunoglobulin F(ab')2 fragments (INOSARS) to evaluate the safety and antiviral efficacy for the treatment of adult patients with mild COVID-19 and low risk of disease progression.

Interventions

DRUGPlacebo

Placebo of saline solution of equal volume and infusion. Content of the infusion bag and tubing will be concealed with opaque covering.

DRUGAnti-SARS-CoV-2 equine immunoglobulin F(ab')2 fragments (INOSARS)

INOSARS is a polyvalent passive immunization based on anti-SARS-CoV-2 immunoglobulin F(ab')2 fragments from hyperimmune equine serum. Inactive ingredients: water for injection, sodium chloride and less than 10% of total protein content.

Sponsors

Inosan Biopharma
CollaboratorINDUSTRY
TecSalud Investigación Clínica
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Double Blind

Intervention model description

Parallel

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
No

Inclusion criteria

Key Inclusion criteria * Outpatient with a RT-qPCR confirmation of SARS-CoV-2 infection * Body Mass Index (BMI) at screening of 18.0 - 34.9 kg/m\^2 * Presence of at least one symptom consistent with COVID-19 * Mild illness as defined by no requirement of supplementary oxygen or hospitalization criteria are met Key

Exclusion criteria

* Presence of a risk factor for disease progression documented for COVID-19 such as: uncontrolled diabetes, uncontrolled hypertension, cardiovascular disease, pulmonary disease, COPD, asthma, active cancer, immunosuppression, hypercoagulable states, CKD currently under dialysis * Documented allergy to equine serum proteins * Previous hospitalization due to COVID-19 * Supplementary oxygen, invasive ventilation, or mechanical circulatory support requirements * Having received convalescent plasma or intravenous immunoglobulins for the treatment of COVID-19 * Previous vaccination or plans to get vaccinated for COVID-19 * In the opinion of investigator, other health conditions that suppose an increased risk of progression of disease NOTE: Other inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Average change from baseline in viral load as quantified by RT-qPCR from nasopharyngeal swab samplesBaseline to days 2, 4, 7, 14 and 28
Proportion of patients with undetectable viral load as quantified by RT-qPCR from nasopharyngeal swab samplesAt days 2, 4, 7, 14 and 28
Time of viral activityBaseline to 28 daysNumber of days in which viral load remains detectable as quantified by RT-qPCR from nasopharyngeal swab samples

Secondary

MeasureTime frameDescription
Adverse events presented early after infusionBaseline to 24 hrsNumber of adverse events per group presented in the first 24 hours
Adverse events presented later after infusionDay 2 until day 28Number of adverse events per group presented 24 hours past infusion
Incidence of anti-INOSARS antibodiesBaseline and day 28

Countries

Mexico

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026