摘要:
The present invention relates to a process of preparing benzisoxazole methane sulfonic acid-chloride (BOS-CI) as an zonisamide intermediate via chlorination of benzisoxazole methane sulfonate. The present invention also disloses a process of preparing zonisamide via amidation of BOS-CI. More particularly, the present invention provides a process of preparing zonisamide, comprising the steps of : a) chlorinating BOS; salts or esters thereof, with SOCl2 in an organic solvent and/or in the presence of a catalyst to form BOS-Cl; and b) amidating BOS-Cl in the presence of ammonia selected from the group consisting of aqueous ammonia in a biphasic system, masked ammonia and dry ammonia to form zonisamide.
摘要:
An oral gastro-retentive delivery device is provided which unfolds rapidly upon contact with gastric juice. The device is configured in a collapsed configuration for oral intake and unfolding for gastric retention for a predetermined period of time and eventually reducing in size for passage through the rest of the GI track.
摘要:
The present invention provides a method for treating a human subject afflicted with multiple sclerosis or a single clinical attack consistent with multiple sclerosis with a pharmaceutical composition comprising glatiramer acetate and a pharmaceutically acceptable carrier, comprising the steps of: (i) determining a genotype of the subject at a location corresponding to the location of one or more single nucleotide polymorphisms (SNPs) selected from the group consisting of: Group 1, (ii) identifying the subject as a predicted responder to glatiramer acetate if the genotype of the subject contains one or more A alleles at the location of Group 2, one or more C alleles at the location of Group 3, one or more G alleles at the location of Group 4, or one or more T alleles at the location of kgp18432055, kgp279772, kgp3991733 or kgp7242489; and (iii) administering the pharmaceutical composition comprising glatiramer acetate and a pharmaceutically acceptable carrier to the subject only if the subject is identified as a predicted responder to glatiramer acetate.
摘要:
The patent provides a process of preparing a pharmaceutical preparation of glatiramer acetate and mannitol in a suitable container comprising the steps of: (i) obtaining an aqueous pharmaceutical solution of glatiramer acetate and mannitol; (ii) filtering the aqueous pharmaceutical solution at a temperature of from above 0°C up to 17.5°C to produce a filtrate; and (iii) filling the suitable container with the filtrate obtained after performing step (ii), so as to thereby prepare the pharmaceutical preparation of glatiramer acetate and mannitol in the suitable container. This patent further provides an aqueous pharmaceutical solution comprising 40mg/ml glatiramer acetate and 40mg/ml mannitol, wherein the aqueous pharmaceutical solution a) has a viscosity in the range of 2.0-3.5 cPa; or b) has an osmolality in the range of 275-325 mosmol/Kg. This patent also provides a prefilled syringe, an automated injector and a method of treatment of a human patient.