EXHIBIT 10.77 AMENDING AGREEMENT - PDT DERM THIS AGREEMENT entered into on July 22, 2003 but having effect from and as of May 31, 2003 (the "Effective Date"). BETWEEN: NOVARTIS PHARMA AG, Business Unit Ophthalmics, a Swiss corporation having a...Amending Agreement • August 14th, 2003 • QLT Inc/Bc • Pharmaceutical preparations
