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The sponsor should conduct in vitro assessments of the drug release from the drug product using media with various alcohol concentrations on the lowest and highest strengths of the MR drug product. The following points should be considered during the evaluation of the in vitro,alcohol-induced, dose dumping of MR drug products: ÉêÇëÕßÓ¦¶ÔMRÒ©Æ·£¨¸ÄÁ¼Ò©Æ·°üÀ¨£¬»º¿ØÊÍÆ¬ºÍ³ÙÊÍÆ¬£©ÔÚ²»Í¬¾Æ¾«Å¨¶ÈµÄÈܳö½éÖÊÖеÄÊͷŽøÐÐÌåÍâÆÀ¹À¡£¼´ÆÀ¹ÀMRÒ©Æ·µÄÌåÍâ¾Æ¾«ÓÕµ¼µÄ¼ÁÁ¿ÇãкʵÑ飬¹ý³ÌÖÐÓ¦¿¼ÂÇÒÔϼ¸µã£º Dissolution testing should be conducted using the optimal apparatus and agitation speed. Dissolution data should be generated from twelve dosage units (n=12) at multiple time points to obtain a complete dissolution profile. Èܳö¶È²âÊÔÓ¦ÔÚ×î¼ÑµÄ×°ÖúͽÁ°èËٶȽøÐС£Èܳö¶È²âÊÔÓ¦²ÉÓÃÊ®¶þ¸ö¼ÁÁ¿µ¥Î»£¨n = 12£©£¬²¢ÉèÖöà¸öʱ¼äµãÈ¡Ñù£¬×îÖÕÒÔ»ñµÃÍêÕûµÄÈܳö¶ÈÇúÏß¡£ The following alcohol concentrations are recommended for the in vitro dissolution studies: 0, 5, 10, 20, and 40 percent. ½¨ÒéÔÚÌåÍâÈܳö¶ÈÑо¿ÖÐʹÓÃÒÔϾƾ«Å¨¶È£º0£¥£¬5£¥£¬10£¥£¬20£¥ºÍ40£¥¡£ The general considerations for selecting the media are as follows: Èܳö½éÖÊÑ¡ÔñµÄ×¢ÒâÊÂÏîÈçÏ£º -If the optimal dissolution medium is 0.1N HCl: Dissolution profiles in 0.1 N HCl (pH 1.2) containing the above range of alcohol concentrations are sufficient. -Èç¹û×î¼ÑÈܽâ½éÖÊΪ0.1N HCl£¬ÔòÔÚÉÏÊö¾Æ¾«Å¨¶È·¶Î§ÄÚµÄ0.1 N HCl£¨pH 1.2£©ÖвâÊÔÈܽâÇúÏß¾Í×ã¹»ÁË¡£ -If the optimal dissolution medium is not 0.1N HCl: Dissolution profiles using the above range of alcohol concentrations in 0.1N HCl and in the optimal dissolution medium are recommended. -Èç¹û×î¼ÑÈܽâ½éÖʲ»ÊÇ0.1N HCl£º½¨ÒéʹÓÃÉÏÊöŨ¶ÈµÄ¾Æ¾«ÔÚ0.1N HClºÍ×î¼ÑÈܽâ½éÖÊÖзֱð²âÊÔÈܽâÇúÏß¡£ -If the optimal dissolution medium has not been identifie d: Dissolution profiles using the above range of alcohol concentrations in three physiologically relevant pH media (i.e. pH 1.2, 4.5, and 6.8) are recommended. -Èç¹ûÉÐδȷ¶¨×î¼ÑµÄÈܳö½éÖÊ£¬Ôò½¨ÒéÔÚÈýÖÖÉúÀíÏà¹ØµÄpH½éÖÊ£¨¼´pH 1.2¡¢4.5ºÍ6.8£©ÖÐʹÓÃÉÏÊö¾Æ¾«Å¨¶È²âÊÔÈܳöÇúÏß¡£ -If the dissolution is pH-independent: Dissolution data in 0.1N HCl with the above range of alcohol concentrations are sufficient. Èç¹ûÈܳö¶ÈÓëpHÎ޹أºÔÚÉÏÊöŨ¶ÈµÄ¾Æ¾«Å¨¶È·¶Î§ÄÚµÄ0.1N HClÖвâÊÔÈܽâ¶ÈÊý¾Ý¾Í×ã¹»ÁË¡£ -For a delayed-release (enteric-coated) product: Dissolution data in 0.1N HCl with the above range of alcohol concentrations are sufficient. -¶ÔÓÚÑÓ³ÙÊÍ·Å£¨³¦ÈÜÒ£©²úÆ·£ºÔÚÉÏÊöŨ¶ÈµÄ¾Æ¾«Å¨¶È·¶Î§ÄÚµÄ0.1N HClÖеÄÈܽâÊý¾ÝÒÑ×ã¹»¡£ The shape of the dissolution profiles should be compared to determine if the modified release characteristics are maintained, especially in the first 2 hours. Ó¦¸Ã±È½ÏÈܳöÇúÏßµÄÐÎ×´£¬ÒÔÈ·¶¨ÊÇ·ñά³Ö¸ÄÁ¼µÄÊÍ·ÅÌØÐÔ£¬ÓÈÆäÊÇÔÚ×î³õµÄ2СʱÄÚ¡£ The f2 values assessing the similarity (or lack thereof) between the dissolution profiles should be estimated (using 0 percent alcohol as the reference). Ó¦ÆÀ¹Àf2Öµ£¬ÒÔÆÀ¹ÀÈܳöÇúÏßÖ®¼äµÄÏàËÆÐÔ£¨»òȱ·¦ÏàËÆÐÔ£©£¨ÒÔ0£¥µÄ¾Æ¾«Îª²Î¿¼£©¡£ The report should include complete data (i.e., individual, mean, standard deviation, comparison plots, f2 values, etc.) collected during the evaluation of the in vitro, alcohol- induced, dose-dumping study. ¸Ã±¨¸æÓ¦°üÀ¨ÔÚÌåÍ⣬¾Æ¾«ÓÕµ¼µÄ¼ÁÁ¿ÇãÏúÑо¿ÆÀ¹ÀÆÚ¼äÊÕ¼¯µÄÍêÕûÊý¾Ý£¨¼´µ¥¸öÊý¾Ý£¬Æ½¾ùÖµ£¬±ê×¼²î£¬±È½Ïͼ£¬f2ÖµµÈ£©¡£ Based on the results of the in vitro assessments, an in vivo BA study of the drug product when administered with alcohol may be needed. ¸ù¾ÝÌåÍâÆÀ¹ÀµÄ½á¹û£¬¿ÉÄÜÐèÒª¶ÔÒ©ÎïÓë¾Æ¾«Ò»Æð½øÐÐÌåÄÚBAÑо¿¡£ Sample Text |
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