** U.S.-listed shares of China-based co Zai Lab Ltd
9688.HK ZLAB.O rise 2.9% to $27.22; while U.S.-listed shares
of Netherlands-based biopharma co Argenx SE ARGX.O rise 1.1%
to $387.13
** Zai Lab and partner Argenx SE ARGX.BR announce China's
National Medical Products Administration has approved Vyvgart as
an add-on to standard therapy for the treatment of adult
patients with generalized myasthenia gravis
** Generalized myasthenia gravis is a chronic neuromuscular
disease caused by an abnormal immune reaction that weakens the
muscles in different parts of the body
** Zai Lab to seek national reimbursement drug list
inclusion for the drug
** Earlier in June, the U.S. FDA approved an under-the-skin
version of the drug with the brand name Vyvgart Hytrulo
** U.S.-listed ZLAB stock down ~12% YTD, while ARGX stock up
~2.3% YTD
(Reporting by Sriparna Roy in Bengaluru)
((Sriparna.Roy@thomsonreuters.com;))