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Leyden Laboratories BV

Therapeutics
Leyden Laboratories B.V. is a clinical-stage biotechnology company based in the Netherlands, specializing in the development of nasal sprays designed to provide broad protection against respiratory viruses. Utilizing its Mucosal Protection Platform, Leyden Labs aims to deliver antibody-based nasal sprays that offer immediate protection by targeting the respiratory mucosa, effectively blocking viruses at their point of entry. This innovative approach is particularly beneficial for vulnerable populations, such as the elderly and immunocompromised, and remains effective even as viruses mutate. The company's lead product candidate, CR9114, is a human monoclonal antibody licensed from Janssen Pharmaceuticals, demonstrating promising protection against influenza in preclinical models.

Leadership & Board

Currently, no data available

Latest Estimated Valuation

Estimated Valuation―
Estimated Valuation―
Total Amount Raised$30M
Total Amount Raised$30M
Total Funding Rounds1
Total Funding Rounds1
Latest Funding Amount$30M
Latest Funding Amount$30M
Latest Funding RoundInvestment
Latest Funding RoundInvestment
Post-Money Valuation―
Post-Money Valuation―

Funding Round

Funding Date
Funding Round
Amount Raised
Post-Money Valuation
Oct 08, 2025
Investment
$30.00M
―

Investors

Investor Name
Funding Round
European Innovation Council Fund
Investment
Invest-NL
Investment

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