On January 17, 2012, the Company announced that it had acquired certain U.S. rights to a portfolio of antihypertensive products from Servier. The portfolio includes ACEON (perindopril erbumine), a currently marketed angiotensin converting enzyme ("ACE") inhibitor, and three FDC product candidates where a form of proprietary perindopril (perindopril arginine) is combined with another active ingredient(s), such as a calcium channel blocker. The Company assumed commercialization activities for ACEON in January 2012 following the transfer from Servier's previous licensee.  In late February 2012, the Company initiated enrollment in a Phase 3 trial for perindopril arginine and amlodipine besylate, the first FDC product candidate ("FDC1"). The trial, named PATH (Perindopril Amlodipine for the Treatment of Hypertension), is expected to enroll approximately 816 patients with hypertension to determine the safety and efficacy of FDC1 versus either perindopril or amlodipine alone. Based on regulatory interaction to date, if the trial generates positive results, it is expected to be the only efficacy trial needed to complement existing clinical data and will support the submission of an application to the FDA seeking approval for FDC1. Partial funding for the PATH trial was provided by Servier; the balance of study expenses, consisting primarily of costs generated by the Company's contract research organization, are expected to be paid over time from the profits generated by the Company's ACEON sales.

In connection with the original agreement, the Company paid a $1.5 million license fee to Servier in the third quarter of 2010. The Company also is required to pay a royalty on ACEON sales at a rate that is tiered based on sales levels and ranges from a mid-single digit to a mid-teen percentage rate. If approved, the Company also will pay a royalty on sales of the FDC product candidates in the mid-teen percentage rate. The FDC royalty rate is subject to reduction in the event of generic competition or if other intellectual property rights are required. The Company may be required to pay the following milestones: development milestones aggregating $8.5 million (assuming the Company exercises its options on the additional FDC product candidates) and sales milestones of up to an aggregate $15.1 million, in each case for all of the FDC product candidates. The Company also may be required to make certain additional payments if the FDC product candidates receive FDA approval but certain minimum sales levels are not reached. The Company generally will be responsible for its development and commercialization expenses, but Servier has agreed to partially fund development of FDC1.