To provide an amorphous composition for nasal administration or for administration by adhering to oral mucosa in which absorption property and chemical and physical stabilities of (2R)-N-(1-benzylpiperidin-4-yl)-3-cyclohexylmethylthio-2-[(4R)-3-tert-butoxycarbonylthiazolidin-4-ylcarbonylamino]propanamide which is useful as an N type calcium channel inhibitor are improved.
A preparation comprising the amorphous composition of the present invention has been found to be excellent in physical stability and chemical stability and to be useful as a nasal preparation or a preparation for adhering to the oral mucosa. As a result, the resulting preparation has a high BA value and is useful for prevention and/or the treatment of a disease mediated by the N type calcium channel including pain (such as neuropathic pain, cancerous pain, intractable pain, postoperative pain, acute pain, chronic pain, neuralgia and infectious pain).
提供一种用于鼻腔给药或粘附在口腔粘膜上给药的无定形组合物,该组合物改善了作为 N 型
钙通道
抑制剂的 (2R)-N-(
1-苄基哌啶-4-基)-3-环己基甲基
硫-2-[(4R)-3-叔丁氧羰基
噻唑烷-4-基羰基
氨基]丙酰胺的吸收性能和
化学及物理稳定性。
研究发现,包含本发明无定形组合物的制剂具有优异的物理稳定性和
化学稳定性,可用作鼻腔制剂或粘附在口腔粘膜上的制剂。因此,本发明制剂具有很高的 BA 值,可用于预防和/或治疗由 N 型
钙通道介导的疾病,包括疼痛(如神经性疼痛、癌痛、难治性疼痛、术后疼痛、急性疼痛、慢性疼痛、神经痛和感染性疼痛)。