Core Viewpoint - The Hang Seng Healthcare Index has declined by 3.3% this week, underperforming the market, with a slight decrease in domestic investors' holdings of pharmaceutical stocks through the Hong Kong Stock Connect since the fourth quarter of last year, while foreign investment has increased [1] Group 1: Market Performance - The Hang Seng Healthcare Index has experienced a cumulative drop of 3.3% this week [1] - Domestic investors' holdings of pharmaceutical stocks via the Hong Kong Stock Connect have slightly decreased [1] - Foreign investment in the sector has increased, particularly in innovative drugs and leading CXO companies benefiting from demand recovery [1] Group 2: Investment Recommendations - The company suggests focusing on differentiated platforms such as small nucleic acids, long-acting formulations, invivo CAR-T, and new generation ADC/XDC in the pharmaceutical business development this year [1] - The sector is expected to maintain a stable upward trend this year, although short-term volatility may occur [1] - Investors are advised to examine company fundamentals and valuations to identify undervalued stocks, such as 3SBio (01530), Hutchison China MediTech (00013), and Genscript Biotech (02595) [1] - CXO segment leaders like WuXi AppTec (02268) may benefit from a favorable downstream environment and improved financing conditions [1] - Sub-sectors such as hospitals, medical devices, and diagnostics may see regulatory uncertainties easing along with positive policy expectations [1]

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]