Rx License-Rx

TAB-3468

Identification and Use of Niclosamide Analogs as Inhibitors of SARS-CoV-2 Infection

This technology includes the identification and use of niclosamide analogs and prodrugs for the treatment of SARS-CoV-2 infection. In-vitro studies have found niclosamide, an old anthelminthic drug, to be potent and effective against Covid-19. But the broad antiviral effect of niclosamide is offset by the low solubility of the drug, leading to poor oral absorption. The niclosamide analogs and prodrugs included in this technology have better in vitro physicochemical properties. Also, these analogs were comparable to niclosamide in the in-vitro 3D models of SARS-CoV-2 infection. Pharmacokinetic studies of a prodrug conducted in mice and hamsters has shown better absorbtion of the active niclosamide, with higher concentrations of niclosamide in both plasma and lungs (the primary site of COVID-19 disease manifestation). The oral bio-availability of niclosamide is greatly enhanced with this prodrug. Commercial applications: Further...

Intelligence Memo

Owner: National Institutes of Health

Core category: Therapeutics

Therapeutic area: Infectious Disease

Indication: COVID-19

Modality: Small Molecule

Focus tags: Infectious Disease

Technology tags: Small Molecule

Mechanism:

Development stage: Preclinical

Patent status: Abandoned; Expired

Availability: Available for license

Plain-English Licensing Breakdown

This is a license opportunity for a therapeutic asset or drug-enabling technology in Infectious Disease. In plain English, the buyer would be licensing science that could become a treatment program, usually after more validation. The current package appears to be preclinical and is associated with National Institutes of Health. The practical first use case is COVID-19. Public description: This technology includes the identification and use of niclosamide analogs and prodrugs for the treatment of SARS-CoV-2 infection. In-vitro studies have found niclosamide, an old anthelminthic drug, to be potent and effective against.

What is exciting

Already past pure discovery: Preclinical validation gives a buyer something concrete to reproduce, optimize, or package into an IND-enabling plan.

The License-Rx pivot is the real unlock: The exciting version is not just the university pitch; it is the focused path: Target a resistant-pathogen niche with regulatory pull instead of a broad anti-infective launch

Negatives / diligence concerns

Translation still unproven: Animal or lab data may not predict human performance; tox, PK/PD, CMC, and indication selection still need diligence.

Risk Flags

  • Human validation and clinical path require diligence.
  • Patent scope and remaining exclusivity need review with counsel.
  • Inventor readiness and licensing terms are not yet verified.

Strategic Pharma Attractiveness

Large pharma would care if this becomes more than an interesting university-originated technology: it needs a crisp Infectious Disease wedge, a measurable value inflection, and a diligence package that makes the first deal feel like an option on upside rather than a blind research bet.

Most logical pharma targets GSK — Vaccines and anti-infective infrastructure. Pfizer — Hospital, anti-infective, and vaccine commercial reach. Johnson & Johnson — Pathogen-focused development and global health channels.

Development Strategy to Increase PoS

First indication: COVID-19

Study design: One decisive preclinical or analytical validation package with a hard go/no-go threshold.

Key experiments Validate the AI-optimized pivot: Target a resistant-pathogen niche with regulatory pull instead of a broad anti-infective launch Run independent replication of the core claim with pre-specified success criteria Generate a partner-facing risk register that separates solved, testable, and unresolved risks

Final Recommendation

Proceed with repositioning: Worth a short exclusive option if diligence confirms IP scope and inventor data quality. The most investable version is: Target a resistant-pathogen niche with regulatory pull instead of a broad anti-infective launch

Best next experiment: Run the smallest independent study that validates: Run pathogen-panel susceptibility, resistance mapping, and one translational model before any broad tox spend.

Best licensing timing: Begin BD conversations after the next validation package; pursue a license, option, or asset sale once the first value inflection is visible.