鸡尾酒疗法
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我国科研人员发现有效抑制“蜱虫病”的抗体组合
Xin Hua She· 2025-11-20 12:14
Core Viewpoint - Nanjing University has developed a novel combination of nano-antibodies that can effectively and broadly inhibit tick-borne disease, with plans to initiate clinical research during the peak season next year [1][2]. Group 1: Research Development - The research team, led by Professor Wu Xilin, has created a cocktail of nano-antibodies targeting the Dabie bandavirus, which causes tick-borne disease, with no current effective treatments available [1][2]. - The team previously isolated the first generation of nano-antibodies from llamas in 2016 and has since focused on enhancing the breadth and efficiency of these antibodies through a "cocktail therapy" approach [2][3]. Group 2: Mechanism and Efficacy - Two specific nano-antibodies, Nb261 and Nb318, have been identified to effectively block the virus by targeting critical sites on the virus protein, thus preventing infection [2][3]. - In animal model experiments using ferrets to simulate the immune response of individuals over 60, the cocktail therapy resulted in no fatalities among infected ferrets, with viral loads dropping to undetectable levels and significant improvements in platelet counts and tissue damage [3]. Group 3: Future Plans - The research team has commenced preclinical studies on the pharmacokinetics, toxicology, and process scaling of the nano-antibodies, aiming to conduct clinical trials during the high incidence period of tick-borne disease next year [3][4].
医药生物行业HIV领域新药追踪:Lenacapavir可能成为艾滋病PrEP新范式
CAITONG SECURITIES· 2025-03-15 13:54
Core Insights - The report maintains a positive outlook on the HIV sector, highlighting Gilead's long-acting therapy, Lenacapavir, as a potential game-changer in HIV treatment and prevention [1][3]. Group 1: HIV Mechanism and Treatment - HIV is a retrovirus that selectively targets CD4+ cells, integrating its genetic material into the host's genome, leading to viral replication [5][7]. - The primary treatment for AIDS is the "cocktail therapy," which combines multiple antiviral drugs to minimize resistance and maximize viral suppression [5][7]. Group 2: Lenacapavir's Impact - Lenacapavir is Gilead's first long-acting HIV capsid inhibitor, showing promising results in clinical trials for treating multi-drug resistant HIV in adults [9][11]. - In the CAPELLA study, 83% of participants using Lenacapavir achieved a viral load of less than 50 copies/mL after 52 weeks, compared to only 11% in the placebo group [13][14]. - Lenacapavir has significant potential in post-exposure prophylaxis (PrEP), with studies indicating a 100% reduction in HIV infection risk among participants receiving biannual injections [20][21]. Group 3: Market Potential and Future Developments - The global HIV infection rate in 2023 was approximately 39.9 million, with a significant portion of the population being women [15][18]. - Lenacapavir's approval for PrEP is anticipated to set a new standard in HIV prevention, potentially generating substantial revenue for Gilead [23]. - Other recent advancements in HIV treatments include Merck's dual-drug therapy achieving positive results in Phase III trials and ViiV Healthcare's long-acting antibody therapy showing good efficacy [24][26].