目前正在进行临床开发的27个抗 HIV 药物中的大多数处于临床试验的第Ⅱ阶段或更早阶段;虽然 HIV 研发产品势头强劲,但要在2009年或2010年之前在治疗药物上取得重大进展似乎不太可能。事实上,两个开发进展较快的药物 tipranavir 和 ca-pravine 有可能仅被用作“过渡性药物”。多年来,HIV 治疗市场的增长速度一直相对较 Most of the 27 anti-HIV drugs currently under clinical development are in Phase II or earlier of clinical trials; although HIV research and development products are gaining momentum, significant progress has been made on therapies by 2009 or 2010 It seems unlikely. In fact, two of the fastest-developing drugs tipranavir and ca-pravine may only be used as “transitional drugs.” Over the years, the HIV treatment market has been growing at a relatively fast pace