| Description | H3B-8800 is an SF3B1 modulator that can be used to study transfusion-dependent anemia. |
| In vivo | 我们进行了H3B-8800的I期临床试验,这是一种口服小分子化合物,能够结合剪接因子3B1(SF3B1),用于对MDS、CMML或AML患者的研究。在84名参与试验的患者中(42名MDS、4名CMML和38名AML),有62名入组时依赖红细胞(RBC)输血。剂量递增队列检查了两种每日一次给药方案:方案I(5天用药/9天停药,研究剂量范围1-40mg,n=65)和方案II(21天用药/7天停药,7-20mg,n=19);27名患者的治疗时间≥180天。最常见的与治疗相关的出现的不良事件包括腹泻、恶心、疲劳和呕吐。没有观察到完全或部分的响应满足IWG标准;然而,在入组时依赖输血的九名患者中,超过56天的RBC输血自由间隔被观察到(15%)。在15名带有错义SF3B1突变的MDS患者中,有五名经历了RBC输血独立(TI)。在体验RBC TI的MDS患者中观察到,治疗前的剪接靶标跨膜蛋白14C(TMEM14C)表达增高。 |
| molecular weight | 555.71 |
| Molecular formula | C31H45N3O6 |
| CAS | 1825302-42-8 |
| Storage | store at low temperature|Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| References | 1. Rioux N, et al. Metabolic disposition of H3B-8800, an orally available small-molecule splicing modulator, in rats, monkeys, and humans. Xenobiotica. 2020;50(9):1101-1114. 2. Spinello A, et al. Investigating the Molecular Mechanism of H3B-8800: A Splicing Modulator Inducing Preferential Lethality in Spliceosome-Mutant Cancers. Int J Mol Sci. 2021;22(20):11222. 3. Seiler M, et al. H3B-8800, an orally available small-molecule splicing modulator, induces lethality in spliceosome-mutant cancers. Nat Med. 2018;24(4):497-504. 4. Steensma DP, et al. Phase I First-in-Human Dose Escalation Study of the oral SF3B1 modulator H3B-8800 in myeloid neoplasms. Leukemia. 2021;35(12):3542-3550. |