Tengion, Inc. reported unaudited earnings results for the first quarter ended March 31, 2013. For the quarter, the company reported loss from operations of $4,143,000 against $4,259,000 for the same period a year ago. Net loss was $5,774,000 or $2.11 per share basic and diluted against $4,949,000 or $2.09 loss per share basic and diluted for the same period a year ago.

Adjusted net loss was $5,535,000 or $2.02 loss per share against $4,378,000 or $21.85 for the same period a year ago. The increased adjusted net loss for the 2013 period was primarily due to an increase in general and administrative expense of $0.5 million and an increase in interest expense of $1.3 million, offset in part by a decrease in research and development expense of $0.5 million.