Japanese biotech firm to test mRNA treatment for knee arthritis

Phase 1 trials to start as soon as September with aim to market shot in the 2030s

20250807N mRNA

The work done by University of Osaka professor Keiji Itaka and his research team led to the clinical trials. (Photo provided by Keiji Itaka)

SATOSHI KAWAHARA

TOKYO -- Japanese biotechnology company PrimRNA will launch clinical trials for a treatment using messenger RNA to repair osteoarthritis of the knee, a condition that afflicts many older adults. 

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