SEATTLE, Wash. (

TheStreet

) --The

Genentech

unit of

Roche

ended its partnership with

Seattle Genetics

(SGEN) - Get Report

TheStreet Recommends

for the experimental lymphoma drug SGN-40, the companies announced Friday.

Rights to SGN-40, also known as dacetuzumab, will be returned to Seattle Genetics next June. Genentech made the decision to give up on the drug after a review of its drug pipeline, the company said.

SGN-40 is a humanized monoclonal antibody being studied in non-Hodgkin's lymphoma and multiple myeloma. In October, Seattle Genetics discontinued a phase II study of SGN-40 in B-cell lymphoma after independent trial monitors determined that patients were not benefiting from the drug.

Seattle Genetics' lead drug is brentuximab, or SGN-35, which is enrolling patients in a pivotal phase III study of Hodgkin's lymphoma.

Seattle Genetics' shares closed Thursday at $8.98.

-- Reported by Adam Feuerstein in Boston

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