Polyrizon Submits Pre-Request for Designation to FDA for PL-16 Viral Blocker Designed to Reduce the Exposure to Influenza and Cold Viruses
Polyrizon Ltd. - Ordinary Shares (PLRZ)
Company Research
Source: GlobeNewswire
The PL-16 Viral Blocker has shown over 90% success in protection of cells against viruses Raanana, Israel, Dec. 19, 2025 (GLOBE NEWSWIRE) -- Polyrizon Ltd., a pre-clinical-stage biotechnology company developing intranasal protective solutions, announced today that it has submitted a Pre-Request for Designation (Pre-RFD) to the U.S. Food and Drug Administration (FDA) for its PL-16 Viral Blocker, a non-pharmacological intranasal product designed to reduce exposure to airborne respiratory viruses, including influenza and cold viruses, by forming a temporary physical barrier on the nasal mucosa. The Pre-RFD submission initiates a formal regulatory dialogue with the FDA regarding the appropriate regulatory pathway for PL-16 Viral Blocker, based on its formulation and physical mode of action. This step comes at a time when seasonal respiratory infections remain a significant public health challenge. According to preliminary model-based estimates from the CDC, the 2025–2026 flu season h
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PLRZ
Sec Filings
- 2/6/26 - Form 6-K
- 2/4/26 - Form 6-K
- 1/22/26 - Form 6-K
- PLRZ's page on the SEC website