UBP Greater China Holdings Limited

To assess the impact of UB-421 and chidamide in changing HIV-1 viral reservoir profile among HIV-1 suppressed patients who undergo short-term ART interruption.
To evaluate the safety and tolerability of UB-421 combined with chidamide among HIV-1 suppressed patients who undergo short-term ART interruption.

The purpose of the study is to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and immunogenicity of a single dose of UB-221 in healthy volunteers.

This is a Phase II, randomized, open-label, multi-center, active-controlled study to assess the safety, tolerability, and efficacy of UB-421 administered as an add-on to the standard ART in ART-treated HIV-1 subjects with stably suppressed HIV-1 plasma VL. The study will be conducted at multiple study centers, designated AIDS hospitals in China.