[EN] PRODRUGS OF NON- STEROID ANTI - INFLAMMATORY AGENTS (NSAIDS)<br/>[FR] PROMÉDICAMENTS D'AGENTS ANTI-INFLAMMATOIRES NON STÉROÏDIENS (AINS)
申请人:SELCH LARSEN CLAUS
公开号:WO2013064153A1
公开(公告)日:2013-05-10
The present invention relates to novel depot formulations (prodrugs) comprising an immobility promoting unit linked via an ester to an active pharmaceutical ingredient, i.a. common NSAIDs. The novel depot formulations are suitable for intra-articular injections and are soluble at slightly acidic pH to facilitate ease of injection, and sparingly soluble at physiological pH thereby precipitating at the site of administration. The precipitate will slowly dissolve and the active drug is released from dissolved depot formulation following esterase mediated cleavage of the ester link between the immobility promoting unit and the active pharmaceutical agent.
本发明涉及一种新型沉积剂配方(前药),其中包括通过酯键连接到活性药物成分(如常见的非甾体类抗炎药)的固定单元。这种新型沉积剂配方适用于关节内注射,在略微酸性pH下可溶解以便于注射,并在生理性pH下溶解度较低,因此在给药部位沉淀。沉淀物将缓慢溶解,活性药物将通过酯酶介导的酯键裂解释放,从溶解的沉积剂配方中释放出来。