Relief, NeuroRx say emergency treatment with RLF-100 helps critically ill Covid patients

TEL AVIV (Reuters) - Critically ill COVID-19 patients recovered rapidly from respiratory failure after three days of treatment with RLF-100, a therapy granted fast-track designation in the United States, two drug companies said on Sunday.

Geneva-based Relief Therapeutics Holdings AG has a patent for RLF-100, or aviptadil, a synthetic form of a natural peptide that protects the lung. U.S.-Israeli NeuroRx Inc partnered with Relief to develop the drug in the United States.