Assess the Downregulation of HIV-1 When Raltegravir is Added to a Virologically Suppressed HAART Regimen

A Pilot Study to Assess the Downregulation of HIV-1 Associated Chronic Inflammation in Patients With Limited Immunologic Responses When Raltegravir is Added to a Virologically Suppressed HAART Regimen

The purpose of this study is to determine whether or not adding Raltegravir to a fully suppressive antiretroviral regimen will assist in reducing HIV-1 associated chronic inflammation and increase the t-lymphocyte memory cell pool.

Inclusion Criteria:

1. At least 18 years of age
2. HIV-positive by Western blot or viral load
3. Viral load < 400 copies/ml
4. CD4+ T-lymphocyte count less than 350 cells/mm3 or change in CD4+ T-lymphocyte count < 100 cells/mm3 for at least one year on stable HAART with viral load < 400 copies/ml for the same period of time

Exclusion Criteria:

1. CD4+ T-lymphocyte count greater than or equal to 350 cells/mm3 or rise in CD4+ T-lymphocyte count greater than or equal to 100 cells/mm3 within one year of study entry
2. Viral load > 400 copies/ml
3. Allergy or resistance to raltegravir