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Medical device company Boston Scientific Corp. agreed to divest certain assets to Varian Medical Systems to settle Â鶹´«Ã½ Trade Commission charges that Boston Scientific’s proposed $4.2 billion acquisition of medical equipment and pharmaceutical supplier BTG plc would violate federal antitrust law. According to the complaint, Boston Scientific’s acquisition of BTG would harm consumers in the U.S. market for drug eluting beads, or DEBs, which are microscopic beads used to treat certain liver cancers. Interventional radiologists use DEBs, combined with chemotherapy drugs, in a procedure called transarterial chemoembolization. Under the proposed settlement agreement, Boston Scientific was required to divest to Varian its DEB business, as well as its bland bead product line. Bland beads are used in another type of procedure to block the flow of blood to a liver tumor. On Feb. 18, 2022, the Commission announced modifications to the divestiture agreement with Boston Scientific Corp.