** Collegium Pharmaceutical Inc's COLL.O shares down
12.52% at $33.12
** Co reports Q1 revenue of $144.90 mln vs LSEG estimate of
$146.90 mln
** Posts Q1 net income of $27.70 mln vs loss of $17.40 mln a
year earlier
** In separate release, co announces Joe Ciaffoni will step
down as CEO, effective May 24
** Board chair Michael Heffernan will serve as interim CEO
** Brokerage Needham cuts rating to 'hold' from 'buy'
** Stock up about 9.5% YTD
(Reporting by Vaibhav Sadhamta)
((Vaibhav.Sadhamta@thomsonreuters.com;))