5. LICENSE, RESEARCH AND DEVELOPMENT AGREEMENTS (Tables)

12 Months Ended

Apr. 30, 2013

License Research And Development Agreements

Licensing agreements relating to bavituximab program

Licensor	Agreement Date	Total Milestone Obligations Expensed To Date		Potential Future Milestone Obligations (1)
UTSWMC	August 2001	$	98,000	$	375,000
UTSWMC	August 2005		85,000		375,000
Lonza	March 2005		64,000		–(2	)
Avanir	December 2003		50,000		1,050,000
Genentech, Inc.	November 2003		500,000		5,000,000
Total		$	797,000	$	6,800,000