Selling, general and administrative expenses decreased to $76.7 million for the quarter ended March 31, 2010 from $87.6 million for the same period in 2009. The decrease primarily reflects lower sales force spending and the Company's reduced cost structure, partially offset by pre-launch expenses associated with BYDUREON.

Research and development expenses decreased to $41.8 million for the quarter ended March 31, 2010 from $46.7 million for the same period in 2009. The decrease primarily reflects lower development expenses for the Company's obesity programs. This reduction reflects development expense cost-sharing with Takeda Pharmaceutical Company Limited through the Company's obesity collaboration agreement and lower clinical trial expenses from trials that were completed in 2009.  

Collaborative profit sharing, which represents Lilly's share of the gross margin for BYETTA, was $67.9 million for the quarter ended March 31, 2010, compared to $73.0 million for the same period in 2009.

Non-GAAP operating loss was $3.8 million for the quarter ended March 31, 2010, compared to $19.9 million for the same period in 2009. GAAP net loss for the quarter ended March 31, 2010 was $38.2 million, or $0.27 per share, compared to $47.0 million, or $0.34 per share, for the same period in 2009.

SOURCE Amylin Pharmaceuticals, Inc.