Fidia Advanced Biopolymers S.r.l.

Fidia S.p.a.

Fidia Advanced Bioplymers, Srl

Luca Benedetti

Lanfranco Callegaro

Aurelio Romeo

Paolo Pallado

Marco Morra

Clara Cassinelli

Microspheres, having a size lower than 1&mgr; and comprising a biocompatible polysaccharidic polymer, are prepared with a process comprising the precipitation of polymer induced by means of a supercritical antisolvent (SAS). These microspheres are used as vehicling agents or carriers in the preparation of pharmaceutical compositions administrable by oral, nasal, pulmonary, vaginal or rectal route. These microspheres can also be advantageously used as vehicling agent or carriers in the preparation of pharmaceutical compositions for the treatment of human diseases associated with genic defects, for the preparation of diagnostics and in the agro-alimentary industry.

Nanosheres comprising a biocompatible polysaccharide

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.

Pharmaceutical compositions for topical use containing hyaluronic acid and its derivatives

Process for the coating of objects with hyaluronic acid, derivatives

The present invention is directed to a microsphere for the controlled release of a biologically active molecule which comprises a biologically active molecule and an ester of hyaluronic acid or mixtures of said esters of hyaluronic acids, and wherein said biologically active molecule is surrounded by or adhered to said ester of hyaluronic acid, and wherein said microsphere has a diameter of between 1 .mu.m to 100 .mu.m.

Process for the preparation of microspheres containing biologically

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Vicenza, Italy

Luca Benedetti