Pharmaceutical composition as solid dosage form and method for manufacturing thereof

Abstract

The present invention relates to a novel pharmaceutical composition as a solid dosage form comprising desmopressin as a therapeutically active ingredient, and to a method for manufacturing thereof. The invention relates to a pharmaceutical composition as a solid dosage form comprising desmopressin, or a pharmaceutically acceptable salt thereof, as a therapeutically active ingredient together with a pharmaceutically acceptable excipient, diluent or carrier, or mixture thereof, wherein at least one of said excipient, diluent and carrier is a substance selected from a monosaccharide, disaccharide, oligosaccharide and a polysaccharide, wherein the said substance has an average particle size in the range of from 60 to 1,000 μm. A method according to the present invention provides an improved production of solid dosage forms of desmopressin.

Description

CROSS REFERENCE TO RELATED APPLICATION [0001] This application is a continuation of U.S. patent application Ser. No. 10 / 425,993, filed Apr. 30, 2003, the contents of which are incorporated herein by reference.FIELD OF THE INVENTION [0002] The present invention relates to a novel pharmaceutical composition as a solid dosage form comprising desmopressin as a therapeutically active ingredient, and to a method for manufacturing thereof. TECHNICAL BACKGROUND [0003] Desmopressin, also known as dDAVP, is the therapeutically active ingredient (as its acetate salt) in the pharmaceutical product Minirin®, which is marketed inter alia as a nasal spray and a tablet formulation. Desmopressin is primarily used in the treatment of primary nocturnal enuresis, i.e. bedwetting, in children, but it is approved also for the treatment of nocturia and diabetes insipidus. The first market introduction of the tablet formulation was in Sweden in 1987. [0004] In short, a solid dosage form such as a tablet fo...

AI Technical Summary

Benefits of technology

[0007] It has now been discovered that a certain dimension of the excipient particles unexpectedly provides a substantial improvement on the speed of the manufacturing process, while both machine wear and tablet quality remain substantially unaltered compared to the industrial manufacturing process hitherto used. In essence, the dimension in question seems to affect the flowability of particles and granulate in such a manner that it provides an improved overall capacity, and hence speed, in the manufacturing process for the desmopressin tablet formulation.

[0013] In the marketed tablet resulting from the hitherto used manufacturing process, the lactose particles (Pharmatose 150M provided by DMV, the Netherlands) have an average size of about 50 μm, as determined by an air jet sieve (provided by Alpine GmbH, DE). That particle size does not provide a granulate that allows a compressing speed exceeding about 170,000 tablets per hour (h). In contrast thereto, the process according to the present invention allows a compressing speed of up to about 250,000 tablets / h with the desired tablet quality and retained low level of wear on the tabletting machinery.

Problems solved by technology

It has now been discovered that a certain dimension of the excipient particles unexpectedly provides a substantial improvement on the speed of the manufacturing process, while both machine wear and tablet quality remain substantially unaltered compared to the industrial manufacturing process hitherto used.