# Novel Nasal Formulations Containing EC16 for Minimizing COVID-19-Associated Anosmia

> **NIH NIH R41** · CAMELLIX, LLC · 2022 · $384,971

## Abstract

Project Summary/Abstract
SARS-CoV-2 infection is associated with high mortality and morbidity worldwide. A common sequela
is anosmia, the loss of the sense of smell, which can impact the quality of life severely. This is due to the
robust replication of SARS-CoV-2 in the nasal neuroepithelial cells, leading to acute or chronic olfactory
dysfunction (anosmia). A significant number of patients in the US (up to 1.6 million) are believed to
have lost their sense of smell chronically, and the number is increasing every day. Therefore, a
significant gap in treatment/preventive strategies that needs to be filled is to inhibit SARS-CoV-2
replication in the nasal epithelia, and novel approaches and agents are in urgent need to better protect
patients from this sensory loss. We hypothesize that EGCG-palmitate (EC16), a compound
with broad spectrum of antiviral activities, has potential to become a new drug agent
against SARS-CoV-2 replication in nasal epithelial cells, thereby minimizing post COVID-
19 anosmia. EGCG is a natural antioxidant extracted from green tea leaves. Previously published
research data, including ours, indicate that although EGCG is a potent inhibitor of diverse groups of
viruses, it is not suitable for nasal formulations due to rapid auto-oxidation. We found that EGCG-
palmitate, or EC16 (palmitoylated EGCG) is more effective and stable than EGCG, therefore suitable
for nasal formulations. The current STTR Phase I proposal is designed to test the proof-of-concept that
nasal formulations containing EC16 are able to inhibit coronavirus replication in human nasal epithelial
cells. Camellix, LLC, a biotech company associated with Augusta University, is now using this patented
technology to develop virucidal and sporicidal hand hygiene and disinfectant products, with promising
results. In the current proposal, investigators from Camellix Research Laboratory and Augusta
University will test the in vitro efficacy and suitability of novel nasal formulations containing EC16
against two types of human coronaviruses. The proposed work will lead to novel prototypes containing
EC16 to provide the basis for future development of new medications against post-COVID-19 anosmia.

## Key facts

- **NIH application ID:** 10543912
- **Project number:** 1R41DC020678-01
- **Recipient organization:** CAMELLIX, LLC
- **Principal Investigator:** Stephen Hsu
- **Activity code:** R41 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2022
- **Award amount:** $384,971
- **Award type:** 1
- **Project period:** 2022-07-01 → 2024-10-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10543912

## Citation

> US National Institutes of Health, RePORTER application 10543912, Novel Nasal Formulations Containing EC16 for Minimizing COVID-19-Associated Anosmia (1R41DC020678-01). Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/grant/nih/10543912. Licensed CC0.

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