# COVID-19 Antigen Team for Immunotherapy and Monitoring Patient Immune Response

> **NIH NIH P30** · UNIVERSITY OF NEBRASKA MEDICAL CENTER · 2020 · $381,250

## Abstract

Coronaviruses (CoVs) are one of the major viral pathogens that primarily target the human respiratory
system. Previous outbreaks include the severe acute respiratory syndrome (SARS)-CoV and the
Middle East respiratory syndrome (MERS)-CoV which were characterized as agents that are a great
public health threat. In December 2019, the novel SARS-CoV-2 that causes COVID-19 emerged to
become a worldwide pandemic. By April 10th, 2020 COVID-19 caused serious illness in more than 1.7
million individuals and more than 100,000 deaths (https://www.worldometers.info/coronavirus/).
Furthermore, it is noteworthy that immunocompromised individuals, such as cancer patients, are
particularly vulnerable to COVID-19. There is currently no specific drug or vaccine to treat the COVID-19 infection, only supportive care is being given to the infected individuals around the world.
The speed with which the current COVID-19 pandemic has expanded across the globe underscores
the urgent need to develop a rapid-response capability to produce anti-viral therapies that could
mitigate the impact of this disease, as well as future diseases 1. To address this need, the University of
Nebraska Medical Center (UNMC) and SAb Biotherapeutics (SAb) propose to utilize transchromosomic
bovine (Tc bovine) technology to rapidly produce human anti-SARS-CoV-2 polyclonal IgG antibodies
for use as an immunotherapeutic for COVID-19 patients. The basis of this approach is the unique Tc
bovine technology in which the genes encoding the IgG antibodies produced by these animals are
replaced with their human counterparts. Thus, the vaccination of these animals with antigen results in
the large-scale production of antigen-specific human polyclonal antibodies directed to that antigen. To
rapidly develop such polyclonal antibodies, our COVID-19 antigen team is producing purified SARS-CoV-2 antigens for vaccinations to generate highly specific human polyclonal antibodies that will then
be purified and used for therapeutic and/or prophylactic purposes in the fight against COVID-19. Our
approach is similar to the use of convalescent serum from patients who have recovered from COVID-
19 to treat active cases of the disease 2-4 but our approach will be more powerful in that it can be
effectively applied broadly to a large patient population. Importantly, this approach has already proven
successful in preventing MERS-CoV 5 and Ebola 6 in animal studies. In fact, SAb has already put a
human anti-MERS-CoV polyclonal antibody product through Phase 1 clinical trials 7. It is noteworthy
that during the Ebola outbreak researchers observed in survivors early and increasing levels of IgG
directed against the nucleoprotein, and other viral proteins, not against the surface glycoprotein 8,9.
Therefore our approach includes several SARS-CoV-2 antigens as well as the spike surface
glycoprotein. Once the human polyclonal Abs are generated, UNMC will conduct in vitro and in vivo
efficacy studies and will seek FDA approval...

## Key facts

- **NIH application ID:** 10164340
- **Project number:** 3P30CA036727-33S1
- **Recipient organization:** UNIVERSITY OF NEBRASKA MEDICAL CENTER
- **Principal Investigator:** KENNETH H. COWAN
- **Activity code:** P30 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2020
- **Award amount:** $381,250
- **Award type:** 3
- **Project period:** 1997-09-05 → 2021-07-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10164340

## Citation

> US National Institutes of Health, RePORTER application 10164340, COVID-19 Antigen Team for Immunotherapy and Monitoring Patient Immune Response (3P30CA036727-33S1). Retrieved via AI Analytics 2026-05-22 from https://api.ai-analytics.org/grant/nih/10164340. Licensed CC0.

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