Swiss group ROCHE has invested EUR 1.3 billion in Japan in order to take control of CHUGAI PHARMACEUTICALS. With this move, ROCHE rises to among the ten largest medicine companies worldwide with a turnover of EUR 7 billion in pharmaceuticals. The acquisition will take the form of a public bid for purchase on 10% of the share capital of the Japanese company, allowing it to control 50.1% of the capital of the company renamed CHUGAI PHARMACEUTICALS CO LTD.