EXHIBIT 4.4 AMENDMENT TO THE PREFERRED STOCK AND WARRANT PURCHASE AGREEMENT This Amendment (the "AMENDMENT") to that certain Preferred Stock and Warrant Purchase Agreement (the "AGREEMENT") dated as of February 5, 2003 and amended as of February 11,...Preferred Stock and Warrant Purchase Agreement • May 14th, 2003 • Intrabiotics Pharmaceuticals Inc /De • Pharmaceutical preparations
