** Shares of drug developer OS Therapies OSTX.A rise 31.1%
to $2.61 in morning trade
** Co says it is starting commercial production of its
experimental therapy, OST-HER2 to treat a type of bone cancer
called osteosarcoma
** OSTX says OST-HER2 has received "rare pediatric disease",
"fast-track" and "orphan drug" designations from the U.S. FDA
** Co says it anticipates submitting an application for
potential approval to the FDA for OST-HER2 in osteosarcoma in
2025
** OSTX adds if the therapy is approved, it would be
eligible to receive a priority review voucher that it could then
sell
** Stock fell 20.7% since its debut
(Reporting by Padmanabhan Ananthan)
((Padmanabhan.Ananthan@thomsonreuters.com;))