Pharmaceutical compositions for topical use containing hyaluronic acid and its derivatives

Abstract

The present invention is drawn to a pharmaceutical composition, comprising a pharmaceutically effective amount of an acidic polysaccharide and/or a derivative thereof, a gaseous vehicle, and a pharmaceutically acceptable carrier or excipient. Said acidic polysaccharide or derivative thereof can be hyaluronic acid, a pharmaceutically acceptable salt of hyaluronic acid, a partial or total ester of hyaluronic acid with an alcohol, a partial or total intermolecular ester of hyaluronic acid, a partial or total intramolecular ester of hyaluronic acid, a cross-linked ester of hyaluronic acid, an alginic acid ester, an ester of carboxymethylcellulose, an ester of carboxymethylchitin, an ester of carboxymethyl starch, a gellan ester, a cross-linked gellan ester, a pectic acid ester, and a pectinic acid ester. The composition can contain one or more topical drugs, and can be in the form of an aerosol or liquid spray, a foam, or a dry spray. The composition is useful in the treatment of a variety of pathological situations requiring the acceleration of tissue repair, for example in the treatment of burns, sores, ulcerations, and wounds. Also provided is a therapeutic method, comprising topically administering a pharmaceutical composition comprising a pharmaceutically effective amount of an acidic polysaccharide and/or a derivative thereof in association with a gaseous vehicle and a pharmacologically acceptable excipient, and optionally, one or more topical drugs.