On November 29, 2022 Zymeworks Inc. (NYSE: ZYME), a clinical-stage biopharmaceutical company developing multifunctional biotherapeutics, reported that the waiting period under the Hart-Scott-Rodino (HSR) Antitrust Improvements Act of 1976, as amended, for the previously announced license agreement of zanidatamab, a HER2-targeted bispecific antibody, with Jazz Pharmaceuticals has expired (Press release, Zymeworks, NOV 29, 2022, View Source [SID1234624559]).

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The expiration or termination of the HSR waiting period was a condition to Zymeworks’ receipt of a $50.0 million non-refundable upfront payment from Jazz as part of the agreement. Zymeworks anticipates providing Jazz top-line clinical data from Zymeworks’ HERIZON-BTC-01 study before the end of 2022. Should Jazz decide to continue the collaboration following the data readout, a second, one-time payment of $325.0 million to Zymeworks will be due and payable, which Zymeworks expects to receive before the end of 2022.