Introduction: Globally, stark inequities exist in access to HIV treatment and prevention. The eastern European and central Asian region is experiencing the sharpest rise in new HIV acquisition and deaths in the world, with low rates of treatment and prevention services, especially for key and vulnerable populations who face a range of human rights-related barriers to HIV prevention and treatment.
Methods: An implementation learning evaluation approach was used to examine the implementation of the Breaking Down Barriers initiative targeting key and vulnerable populations in Ukraine.