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超越青蒿素,克服耐药性!首个非青蒿素抗疟疾药物即将上市
生物世界· 2025-11-16 03:34
Core Viewpoint - The article highlights the significant advancements in malaria treatment, particularly focusing on the development of a new drug, Ganaplacide–Lumefantrine (GanLum), by Novartis, which shows promise against drug-resistant malaria strains [8][10]. Group 1: Historical Context and Current Situation - In 1972, Chinese scientists, led by Tu Youyou, extracted artemisinin from sweet wormwood, significantly reducing malaria mortality rates and earning Tu the Nobel Prize in 2015 [2]. - The compound artemisinin led to the development of artemether-lumefantrine, marketed as Coartem, which became a first-line treatment for malaria and has saved millions of lives since its approval in 1999 [3][5]. - Malaria, caused by Plasmodium parasites transmitted through mosquito bites, infects hundreds of millions globally each year, resulting in nearly 600,000 deaths, primarily among children under five [5]. Group 2: New Drug Development - Novartis announced promising results from Phase 3 clinical trials for GanLum, a new imidazopyridine-based antimalarial drug, which targets the internal protein transport system necessary for the survival of the malaria parasite in human red blood cells [8]. - The clinical trial involved 1,688 malaria patients across 12 African countries, showing GanLum cleared artemisinin-resistant malaria mutations in about 47 hours, compared to 71 hours for artemether-lumefantrine [8]. - GanLum achieved a cure rate of 97.4%, surpassing the 94% cure rate of the standard treatment, with comparable safety profiles [8]. Group 3: Implications and Future Prospects - GanLum is expected to be effective in areas with known artemisinin resistance and can also be used in regions without resistance to slow down the development of drug resistance [10]. - Novartis is currently seeking regulatory approval for GanLum, with expectations for market availability within 12-18 months, marking the first new class of antimalarial drug approved since artemether-lumefantrine [11].