Patent application number | Description | Published |
20090011028 | Self-precipitating pharmaceutical formulations for the moified release of an active principle - The present invention relates to novel pharmaceutical formulations for the release of an active principle (AP) over a sustained period of time of several days, or even several weeks. | 01-08-2009 |
20090011039 | Modified-release particles of polyelectrolytes and pharmaceutical formulations thereof - The present invention relates to novel particles comprising polyelectrolyte polymers which are transporters of active principle (AP), in particular protein and peptide active principle, and to novel modified-release pharmaceutical formulations comprising said AP microparticles. | 01-08-2009 |
20090012028 | Polyglutamic acids functionalized by cationic groups and hydrophobic groups and applications thereof, in particular therapeutic applications thereof - The present invention relates to novel biodegradable materials based on modified polyamino acids that are useful in particular in the vectorization of active principle(s) (APs). The invention is also directed to novel pharmaceutical, cosmetic, health-food or plant-protection compositions based on these polyamino acids. | 01-08-2009 |
20100034886 | Polyglutamic Acids Functionalised by Histidine Derivatives and Hydrophobic Groups and the Uses Thereof, in Particular for Therapeutic Purposes - The invention relates to novel biodegradable materials based on modified polyamino acids and suitable, in particular, for vectoring active substance(s) (AS). Said invention also relates to novel pharmaceutical, cosmetic, dietary or plant protective compositions which are based on said polyamino acids. | 02-11-2010 |
20100048735 | POLYAMINOACIDS FUNCTIONALIZED WTIH ALPHA-TOCOPHEROL, AND USES THEREOF, ESPECIALLY THERAPEUTIC USES - The invention concerns novel biodegradable polyaminoacid materials, useful in particular for vectoring active principles(s). The invention also concerns novel pharmaceutical, cosmetic dietetic or phytosanitary compositions based on said polyaminoacids. The invention aims at providing a novel polymer raw material, capable of being used for vectoring active principles and enabling optimal fulfillment of all specified requirements: biocompatibility, biodegradability, easy and inexpensive transformation into particles vectoring active principles, said particles being themselves capable of forming colloidal suspensions, of being easily associated with numerous active principles, and of releasing said active principles in vivo. Therefor, the present invention concerns first of all amphiphilic polyaminoacids comprising aspartic acid units and/or glutamic acid units, characterized in that at least part of said units carry grafts, including at least one alphα-tocopherol motif, for example (polyglutamate or polyaspartate grafted with alphα-tocopherol of synthetic or natural origin). | 02-25-2010 |
20100098656 | Polyamino acids functionalized by hydrophobic grafts bearing an anionic charge and applications thereof, such as therapeutic applications - The present invention relates to novel materials based on biodegradable polyamino acids that are useful especially for the vectorization of active principle(s) (AP). The invention further relates to novel pharmaceutical, cosmetic, dietetic or phytosanitary compositions based on these polyamino acids. The object of the invention is to provide a novel polymer starting material that is capable of being used for the vectorization of AP and makes it possible on the one hand to achieve high polymer/AP ratios, and on the other hand optimally to satisfy all the specifications required in the case in point: biocompatibility, biodegradability, ability to associate easily with numerous active principles or to solubilize them, and ability to release these active principles in vivo. This object is achieved by the present invention, which relates first and foremost to linear polyamino acids comprising aspartic units or glutamic units and having hydrophobic grafts comprising hydrophobic groups containing from 8 to 30 carbon atoms, at least one of these hydrophobic grafts having at least one anionic charge and/or one or more mutually identical or different ionizable groups each capable of giving rise to at least one anionic charge. These polymers are amphiphilic and anionic and are capable of being converted easily and economically to particles for the vectorization of active principles, these particles themselves being capable of forming stable aqueous colloidal suspensions. | 04-22-2010 |
20100178337 | Composition comprising an active agent with low aqueous solubility - The present invention relates to a composition comprising at least one active ingredient with low aqueous solubility, said active ingredient being present therein in a form noncovalently associated with nanoparticles formed by at least one POM polymer of formula (I), and in which said active ingredient is present in a proportion of at least 5 μmol/g of POM. | 07-15-2010 |
20110129540 | Polymer of acrylic or methacrylic type comprising alpha-tocopherol grafts - The present invention relates to a novel family of polymers of acrylic and/or methacrylic type, comprising alpha-tocopherol grafts, capable of forming nanoparticles in an aqueous medium at a neutral pH. | 06-02-2011 |