Jefferies Downgrades Tesaro Following 108% Stock Move


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Jefferies has downgraded TESARO Inc (NASDAQ: TSRO) to Hold from Buy after the stock climbed 108 percent Wednesday on positive Phase3 NOVA data for niraparib in ovarian cancer.

"We move to Hold as we await full data & competitor data in 2H16-2017. Risks to our downgrade include (1) potential take-out; (2) competitor data not as good as niraparib; & (3) expansion of niraparib indications," analyst Eun Yang wrote in a note.

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Yang said the stock could gain if AstraZeneca plc (ADR) (NYSE: AZN)'s olaparib data in 2L ovarian cancer maintenance not as good as niraparib. The data is expected in the second half of 2016.

Another risk to the downgrade includes greater-than-expected niraparib sales. Yang expects about $1.4 billion in peak sales.

The upcoming events include:

  • (1) "Phase 2 niraparib data in >4L ovarian cancer treatment (QUADRA) in 2016";
  • (2) "initiation of Ph1 trial of TSR-022 (anti-TIM-3 Ab) in ~mid-2016";
  • (3) "identification of dose & schedule in Ph1 trial of TSR-042 (anti-PD-1 Ab) by YE16";
  • (4)" selection of >1 bispecific Ab I/O candidate by YE16"; and
  • (5) "NDA/MAA filings for niraparib in >2L ovarian cancer maintenance in 4Q16."

Yang also raised price target to $75 from $53, driven by increased probability of niraparib success in ovarian cancer.

At time of writing, shares of Tesaro rose 5.50 percent to $81.66.


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