In one of the largest single-drug collaboration deals ever, Nektar
will receive $1 billion in cash upfront and Bristol-Myers will
purchase about 8.28 million Nektar shares at $102.60 per share, or
an equity stake of just under 5 percent of the company. Nektar
shares closed at $75.66 on Nasdaq on Tuesday.
The partnership is built around the Nektar drug, NKTR-214, which
will be tested in combination with Bristol's immuno-oncology (IO)
drugs Opdivo and Opdivo and Yervoy in 20 cancer indications across
nine different tumor types, including melanoma, kidney and lung
cancers, following "very encouraging" early data from clinical
trials.
"We've been in a clinical collaboration with Nektar since 2016. This
partnership was a natural next step," Paul Biondi, head of business
development for Bristol-Myers, said in a telephone interview.
The combination therapies could become "potentially a new backbone
in the IO space," he added.
Early immunotherapy leader Bristol-Myers has been viewed by
investors as having fallen behind Merck & Co in the burgeoning
field, especially in the most lucrative lung cancer space.
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NKTR-214, an interleukin-2 (IL-2) agonist, is designed to increase
the number and activation state of cancer-fighting T cells in the
tumor microenvironment, while limiting IL-2 toxicity, with the hope
of improving and lengthening patient responses.
Under the deal terms, Nektar is also eligible to receive an
additional $1.78 billion in milestone payments, of which $1.43
billion are development and regulatory milestones and the remainder
are sales milestones.
Following approvals, Nektar will book revenue for worldwide sales of
NKTR-214 and the companies will split the global profits, with
Nektar receiving 65 percent and Bristol-Myers 35 percent, they said.
Bristol-Myers will retain 100 percent of product revenues for its
own medicines.
The transaction is expected to be completed in the second quarter of
2018, the companies said.
(Reporting by Bill Berkrot, Editing by Rosalba O'Brien)
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