Protagonist Therapeutics, Inc. announced the closing of the worldwide collaboration and license agreement for rusfertide with Takeda, a leading values-based, R&D-driven biopharmaceutical company, disclosed on January 31, 2024. Closing of the transaction was contingent on completion of review under the Hart-Scott-Rodino (HSR) Antitrust Improvements Act of 1976 in the United States. Protagonist will receive the $300 million upfront payment associated with the transaction in the second quarter of 2024.