** Shares of Sage Therapeutics SAGE.O up 13.1% at $14.65
premarket
** Partner Biogen BIIB.O reports $12 mln in Q1 revenue
from post-partum depression pill Zurzuvae
** At least three analysts say that sales of Zurzuvae came
in ahead of their expectations
** Jefferies analyst Michael Yee says that Zurzuvae's sales
beat suggest that the drug's launch could potentially be better
than expected
** The pill was approved to treat postpartum depression
(PPD) in adults in August last year
** BIIB also posts Q1 profit above estimates, records $19
mln in global sales of its Alzheimer's drug Leqembi for which it
partners with Japanese drugmaker Eisai 4523.T
** As of last close, BIIB shares were down 25.4% and SAGE
was down 40% YTD
(Reporting by Bhanvi Satija in Bengaluru)
((Bhanvi.Satija@thomsonreuters.com; Outside U.S. +91
9873062788;))