Cerus Corporation (NASDAQ: CERS) today announced financial results for the second quarter ended June 30, 2013. "Successful completion of the INTERCEPT platelet and plasma U.S. PMA submissions in November 2013 and March 2014, respectively, remains a top Cerus priority, and our team continues to deliver on these goals alongside the recent initiation of Phase III European studies for INTERCEPT red cells,“ said William ‘Obi‘ Greenman, Cerus‘ president and chief executive officer. “In Q2, we also achieved $10.2 million in product revenue, providing steady progress toward our projected full year revenue guidance of $41-$43 million.“ Revenue Product revenue for the second quarter of 2013 was $10.2 million, a 10% increase over the second quarter of 2012. Continued growth in certain markets for both INTERCEPT illuminators and disposable kits drove a significant portion of the revenue growth. Product revenue for the first half of 2013 was $19.9 million, and represented an 11% increase from the first half of 2012. The increase in product revenue during the first half of 2013 over 2012 was driven primarily by increased demand for our INTERCEPT products. There was no government grant revenue recognized in the second quarter and first half of 2013, as compared to $0.1 million recognized during the first half of 2012. Gross Margins Gross margins on product sales for the second quarter of 2013 were 43%, compared to 40% for the second quarter of 2012. Gross margins were 45% for the first six months of 2013, compared to 38% for the same period in 2012. The improvement in gross margins on product sales was driven primarily by lower costs for products sold as a result of improved overhead absorption due to higher manufacturing levels. Operating Expenses Total operating expenses for the second quarter of 2013 were $11.5 million, compared to $8.4 million for the second quarter of 2012, and $21.1 million compared to $16.3 million for the six months ended June 30, 2013 and 2012, respectively. The increase in operating expenses was due primarily to regulatory activities for the preparation and submission activities supporting the Company’s PMA submissions for INTERCEPT plasma and platelets, costs for the clinical activities regarding the Company’s red blood cell program and increases in selling, general and administrative expenses in support of the existing European commercial business and in preparatory market research activities for a potential U.S. launch.