Home Business Roche wins UK clearance for $4.3 billion Spark takeover as U.S. review... Business Roche wins UK clearance for $4.3 billion Spark takeover as U.S. review continues By Genpie - December 16, 2019 256 0 Facebook Twitter Google+ Pinterest WhatsApp Swiss drugmaker Roche won clearance from Britain’s Competition and Markets Authority for its $4.3 billion takeover of gene therapy company Spark Therapeutics, the London Stock Exchange said on Monday, as a U.S. review continues.