Lipid nanoparticles for RNA vaccines were used in small quantities a year ago. Now Pfizer and Moderna can’t get enough.
Acuitas Therapeutics, a tiny biotechnology firm in Vancouver, B.C., has just 30 employees and leases its labs from the University of British Columbia. The company doesn’t even have a sign on its building. Until last year, it outsourced production of only small volumes of lipid nanoparticles, fat droplets used to deliver RNA into cells, for research and a single approved treatment for a rare disease.
But now, one of Acuitas’s discoveries has become a precious commodity. A proprietary molecule called an ionizable cationic lipid is a crucial piece of the mRNA vaccine made by Pfizer and its German partner BioNTech, and it is in urgent demand for production of billions of vaccine doses worldwide.
Scaling up production of formerly niche substances such as lipid nanoparticles for a global vaccine drive has been among the most complex challenges facing the Biden administration as it aims to ramp up the frustratingly slow provision of shots across the country, according to interviews with company officials and outside scientists and government reports. Continue reading.