[INVESTIGATION NO. 337-TA-1466] ISSUES NOTICE: CERTAIN ANTIBODY DRUG CONJUGATES AND COMPONENTS THEREOF AND PRODUCTS CONTAINING THE SAME; INSTITUTION OF INVESTIGATION

WASHINGTON, Dec. 22 -- [Investigation No. 337-TA-1466] has issued a notice called: Certain Antibody Drug Conjugates and Components Thereof and Products Containing the Same; Institution of Investigation.

The notice was published in the Federal Register on Dec. 22 by Lisa Barton, Secretary to the Commission.

Summary: Notice is hereby given that a complaint filed with the U.S. International Trade Commission on November 18, 2025, under section 337 of the Tariff Act of 1930, as amended, on behalf of AbbVie Inc. of North Chicago, Illinois; ImmunoGen, Inc. of Waltham, Massachusetts; and ImmunoGen Switzerland GmbH. A letter supplementing the complaint was filed on December 10, 2025. The complaint alleges violations of section 337 based upon the i...