Biojector 2000 Open-Label Safety Study (BOSS) to Evaluate Signs and Symptoms Associated With a Needle-free Injection Device for Administration of Fuzeon to Patients With HIV-1 Infection

This study will evaluate the signs and symptoms associated with Fuzeon injection (90mg sc) using the B2000 needle-free injection device, in HIV-1 positive patients experienced to Fuzeon treatment, but having difficulty tolerating long-term (>4 weeks) administration of Fuzeon with the standard needle and syringe. Patients will be randomized to the B2000 device or the standard needle and syringe for 4 weeks; all patients will use the B2000 device for the next 4 weeks. The anticipated time on study treatment is <3 months, and the target sample size is 100-500 individuals.