Pharmacyclics® Triggers Significant Milestone Payment and Provides Clinical Program Update

Pharmacyclics, Inc. PCYC announced today that the international Phase III randomized, multicenter, open-label clinical trial, RESONATE™ (PCYC-1112), of ibrutinib versus ofatumumab for patients with relapsed or refractory chronic lymphocytic leukemia or small lymphocytic lymphoma (CLL/SLL) initiated by Pharmacyclics has enrolled its fifth patient. The enrollment of the fifth patient has subsequently triggered a $50 million milestone payment obligation from Janssen Biotech, Inc. (Janssen), one of the Janssen Pharmaceutical Companies of Johnson & Johnson and the worldwide collaborator on ibrutinib in oncology. As Pharmacyclics or Janssen initiate further Phase III trials in specific indications and enroll the 5th patient, additional milestone payments of $50 million may be triggered up to a total of $250 million. We anticipate an additional Phase III trial milestone payment during calendar 2013.