Centre National De La Recherche Scientifique

Universite Claude Bernard – Lyon1

Centre Hospitalier Universitaire Vaudois

Antia Therapeutics S.a.

Université Claude Bernard Lyon I

Eric Doelker

Olivier Jordan

Yves Chevalier

Gert Andersen

Nathalie Boulens

Pierre Bize

Alban Denys

Géraldine Agusti

Coralie Nyffenegger

Hatem Fessi

David Quintanar

Eric Allemann

Geraldine Agusti

The invention relates to chemoembolization compositions for anti-angiogenic agent delivery. The invention further relates to a method of preparing chemoembolization compositions and to the use of chemoembolization compositions in the method for treating solid tumour cancers.

Chemoembolization composition comprising anti-angiogenic agents

The invention relates to chemoembolization composition for anti-angiogenic agent delivery. The invention further relates to a method of preparing chemoembolization composition and to the use of chemoembolization composition in the method for treating solid tumor cancers.

A method of embolizing an area of treatment includes providing a composition that includes a radiopaque, non-biodegradable, water-insoluble iodinated benzyl ether of poly(vinyl alcohol) consisting of a poly(vinyl alcohol) (PVA) having covalently grafted thereon iodinated benzyl groups comprising from 1 to 4 iodine atoms per benzyl group as the only substituents wherein a grafted repeating unit has formula (I) wherein n is from 1 to 4: and introducing the composition into the area of treatment.

Method of embolization using a radiopaque, non-biodegradable, water-insoluble iodinated benzyl ether of polyl(vinyl alcohol)

The invention concerns a radiopaque, non-biodegradable, water-insoluble iodinated benzyl ether of poly(vinyl alcohol) consisting of a PVA having covalently grafted thereon iodinated benzyl groups comprising 1-4 iodine atoms per benzyl group, a process for preparing the same comprising reacting a 0-100% hydrolyzed PVA with a iodinated benzyl derivative comprising 1-4 iodine atoms per benzyl group in a polar aprotic solvent in the presence of a base in anhydrous conditions. Said iodo-benzylether-PVA is particularly useful as embolic agent in an injectable embolizing composition. The invention also concerns an injectable embolizing composition comprising said iodo-benzylether-PVA and capable of forming a cohesive mass upon contact with a body fluid by precipitation of the iodo-benzylether-PVA. Said injectable embolizing composition is particularly useful for forming in-situ a cohesive mass in a blood vessel or into a tumor. The invention further concerns a coating composition containing said iodo-benzylether-PVA and capable of forming a radiopaque coating on a medical device. The invention further concerns particles formed of said iodo-benzylether-PVA.

Radiopaque, non-biodegradable, water-insoluble iodinated benzyl ethers of poly(vinyl alcohol), preparation method thereof, injectable embolizing compositions containing thereof and use thereof

A process for the preparation of nanoparticles for the encapsulation of active constituents, the nanocapsules prepared being dispersible in aqueous phase in colloidal form, non-toxic, biocompatible, stable in colloidal suspension and economical. In the process, two non-oily solvents as used, together with a third, oily solvent.

Method for preparing vesicular nanocapsules

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Conches, Switzerland

Eric Doelker