** Shares of cell and gene therapy company 2seventy bio
TSVT.O fall as much as 16.4% to $1.9, before paring some of
their losses
** Stock last down 5.5% at $2.14
** TSVT says it does not expect to achieve its original 2023
revenue forecast of $470 mln to $570 mln
** Sales of its blood cancer cell therapy Abecma are under
pressure due to competition from rival treatments like Legend
Biotech LEGN.O and Johnson & Johnson's JNJ.N Carvykti, other
JNJ therapies Tecvayli and Talvey and Pfizer's PFE.N Elrexfio
** TSVT's Q3 revenue of $12 mln misses Wall Street estimate
of $31.2 mln - LSEG data
** Sales of Abecma in the quarter also hit due to a planned
manufacturing maintenance in June
** TSVT expects competitive dynamics for Abecma to continue
to impact sales in Q4
** Cash, cash equivalents of $284.3 mln at the end of Q3
** Company says it has sufficient cash to fund current
planned operations for at least 12 months, but did not provide
specific cash runway forecast
** Including session's loss, stock down 77% YTD vs a 9.9%
decline in Nasdaq Biotechnology .NBI index
(Reporting by Puyaan Singh)
((Puyaan.Singh@thomsonreuters.com;))