Abstract: The present invention pertains to interferon-beta (IFN-beta) compositions comprising interferon-beta and a grafted poly(glutamic acid) polymer having an average molecular weight between 26,000 and 40,000 g/mol, grafted with alpha-tocopherol substituents, the average molar grafting ratio being 4.5-5.5 moles %, the weight/weight ratio between said grafted poly(glutamic acid) polymer and IFN-beta being between 24 and 125. The present invention also pertains to the preparation methods of such compositions and their application to obtain therapeutic compositions in dosage unit form delivering IFN-beta over an extended period of time.

Abstract: The present invention pertains to interferon-beta (IFN-beta) compositions comprising interferon-beta and a grafted poly(glutamic acid) polymer having an average molecular weight between 26,000 and 40,000 g/mol, grafted with alpha-tocopherol substituents, the average molar grafting ratio being 4.5-5.5 moles %, the weight/weight ratio between said grafted poly(glutamic acid) polymer and IFN-beta being between 24 and 125. The present invention also pertains to the preparation methods of such compositions and their application to obtain therapeutic compositions in dosage unit form delivering IFN-beta over an extended period of time.

Abstract: The present invention relates to a novel solid composition, useful for treating hepatitis, in particular hepatitis C, comprising at least one interferon alpha and at least one grafted poly(glutamic acid) having an average molar mass ranging from 26,000 to 40,000 g/mol, preferably approximately 33,000 g/mol and carrying grafts of alpha-tocopherol at an average molar grafting rate ranging from 4.5 to 5.5%, preferably approximately 5%, the interferon alpha and said grafted poly(glutamic acid) being present in a grafted poly(glutamic acid)/interferon alpha weight ratio ranging from 21 to 125. It also relates to the use of such a solid composition for the preparation of a liquid composition by the addition of an aqueous liquid.

Abstract: Provided are pharmaceutical compositions and methods for preventing or reducing niacin-induced flushing comprising an aspirin component and a niacin component having different release profiles. Also provided are methods and compositions for preventing or reducing niacin-induced flushing comprising niacin, aspirin and a lipid-lowering drug other than niacin.

Abstract: A synthetic particulate vector comprising a non-liquid hydrophilic nucleus which does not have an external lipid layer grafted thereon. A method for preparing a particulate vector by encapsulating an ionizable active principle, vectors obtainable through said method, and pharmaceutical, cosmetological or food compositions containing such vectors are also disclosed.

Abstract: The invention pertains to use of a vector of the type comprising a nonliquid hydrophilic core for the preparation of a medication intended for the treatment of cancers and/or viral diseases, the vector being combined in the medication with at least one substance other than an antigen capable of modulating the immune response.

Abstract: A particulate complex including a nucleic acid and a biodegradable cationized polyhydroxylated molecule, wherein said molecule has a charge up to approximately 1.0 meq/g.

Abstract: A synthetic particulate vector comprising a non-liquid hydrophilic nucleus which does not have an external lipid layer grafted thereon. A method for preparing a particulate vector by encapsulating an ionizable active principle, vectors obtainable through said method, and pharmaceutical, cosmetological or food compositions containing such vectors are also disclosed.

Abstract: A particulate complex is provided comprising a particulate complex comprising a nucleic acid and a biodegradable cationized polyhydroxylated molecule, wherein the polyhydroxylated molecule has a charge up to approximately 1.0 meq/g.

Abstract: The invention relates to an ionic conjugate, which is stable in a biological medium, and which is comprised of a particle vector with at least one cationic, nonliquid, hydrophilic nucleus and of polyanionic oligonucleotides. The invention further concerns the pharmaceutical compositions containing these conjugates and the use of a particle vector to carry the oligonucleotides to the cells.

Abstract: A novel method for the mucosal administration of a substance to a mammal is provided. The method comprises contacting a mucosal surface of the mammal with the substance in combination with a Biovector. The Biovector has a core that comprises a natural polymer, or a derivative or a hydrolysate of a natural polymer, or a mixture thereof. A preferred natural polymer is a polysaccharide or an oligosaccharide. The core is optionally coated with an amphiphilic compound, such as a lipid.

Abstract: A novel method for the mucosal administration of a substance to a mammal is provided. The method comprises contacting a mucosal surface of the mammal with the substance in combination with a Biovector. The Biovector has a core that comprises a natural polymer, or a derivative or a hydrolysate of a natural polymer, or a mixture thereof. A preferred natural polymer is a polysaccharide or an oligosaccharide. The core is optionally coated with an amphiphilic compound, such as a lipid.