Biogen Idec 2Q10 2Q Revenues: $1.2 billion (+11%) 2Q Earnings: $294 million (+103%) YTD Revenues: $2.3 billion (+9%) YTD Earnings: $515 million (+31%) Comments: Avonex revenues grew 6% in 2Q10 and YTD to $628 million and $1.2 billion, respectively. Tysabri revenues were up 17% to $219 million in the quarter, and 24% to $438 million for the year. The company estimates that 52,700 patients worldwide are on commercial or clinical Tysabri. R&D expenses dropped 20% in 2Q10 to $332 ...