艾滋病（HIV）：关注长效制剂、多重耐药和功能性治愈三大方向

Investment Rating - The report maintains a "Positive" investment rating for the HIV sector [14] Core Insights - The HIV/AIDS sector has significant unmet clinical needs despite advancements in antiretroviral therapy (ART), which has transformed HIV from a fatal disease to a manageable chronic condition. Key areas of focus include long-acting formulations, multi-drug resistance (MDR), and functional cures [4][11][44] Summary by Sections Disease Burden and Unmet Needs - As of the end of 2022, there were approximately 39 million people living with HIV/AIDS globally, with over 1 million new cases annually. In China, over 50,000 new cases are reported each year, with 1.39 million living with HIV as of mid-2025 [9][23] New Drug Development Directions - The report identifies three main directions for new drug development in the HIV field: 1. Long-acting formulations to improve patient adherence and reduce side effects [11][45] 2. Addressing multi-drug resistance, with only three FDA-approved drugs specifically for MDR [11][57] 3. Exploring functional cures, which aim to maintain undetectable viral loads after stopping ART [11][62] Long-Acting Formulations - Long-acting antiretroviral drugs, such as Cabenuva, have shown significant market potential, with projected sales reaching $1.294 billion in 2024. These formulations aim to reduce the burden of daily medication [11][49] Multi-Drug Resistance - The prevalence of multi-drug resistant HIV is increasing, particularly among newly treated patients. The report highlights the need for more effective treatment options as current approved drugs are limited [11][56] Functional Cure Strategies - Functional cure strategies are being explored, including methods to activate and eliminate latent HIV reservoirs. Various approaches such as "Shock and Kill" and immune therapies are under investigation [62][63] UB-421 Development - UB-421, a humanized CD4 monoclonal antibody, is positioned as a leading candidate in China for treating multi-drug resistant HIV and achieving functional cures. It is currently in Phase III clinical trials [12][67]