** Brokerage Oppenheimer says there is an opportunity for
competition given a cautious uptake of Merck's MRK.N therapy,
Winrevair, for a rare lung condition
** Early trends of Merck's therapy indicate the sickest
patients being prioritized - brokerage
** U.S. FDA approved the therapy for treating pulmonary
arterial hypertension in March this year
** As of Sept. 30, FDA's adverse event reporting system
lists 254 cases, with 103 serious, including 8 reported deaths,
believed to be related to MRK's therapy
** Doctors exercise heightened caution when recommending it
to patients with a history of bleeding risks
** As the safety profile continues to emerge, there is an
opportunity for potentially safer treatments that could be used
in earlier lines, says brokerage
** There is potential for Keros Therapeutics' KROS.O
cibotercept for higher dosing compared to Winrevair, says
Oppenheimer
** Gossamer Bio's GOSS.O seralutinib stands out with a
clean long-term safety and efficacy profile
(Reporting by Sriparna Roy in Bengaluru)
((Sriparna.Roy@thomsonreuters.com;))