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Discover 20,904 clinical trials near Philadelphia, Pennsylvania. Find research studies in your area.
Showing 18321-18340 of 20,904 trials
NCT00644163
This study will evaluate the effectiveness of a risk-reduction program in preventing the transmission of HIV and sexually transmitted diseases among African-American heterosexual couples, with one partner having been previously diagnosed with an HIV infection.
NCT00552240
The aim of this clinical trial is to compare the efficacy and safety of ritonavir (RTV)-boosted atazanavir with nevirapine, each on a background of emtricitabine and tenofovir disoproxil fumarate (DF).