To assess long term safety and tolerability of subjects who discontinue for any reason from UK-453,061 studies. The study will also assess efficacy of the subsequent regimens in these patients. The trial was terminated prematurely on January 29, 2013, due to the decision of the sponsor to discontinue development of lersivirine. The decision to terminate the trial was not based on any safety or efficacy concerns.
The purpose of the protocol is to assess long-term safety and tolerability of subjects who discontinue for any reason from UK-453,061 qualifying studies.