PHARMACEUTICAL FORMULATIONS FOR THE SUSTAINED RELEASE OF ACTIVE INGREDIENT(S), AS WELL AS THEIR APPLICATIONS, ESPECIALLY THERAPEUTIC
The present invention concerns new pharmaceutical formulations based on aqueous colloidal suspensions for sustained release of active ingredient(s) -AI - in particular, protein(s) and peptide(s), as well as the applications, especially therapeutic, of these formulations. This formulation comprises a...
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creator | OLIVIER SOULA ALAIN CONSTANCIS CÉCILE BONNET GONNET DAVID CHOGNOT |
description | The present invention concerns new pharmaceutical formulations based on aqueous colloidal suspensions for sustained release of active ingredient(s) -AI - in particular, protein(s) and peptide(s), as well as the applications, especially therapeutic, of these formulations. This formulation comprises an aqueous colloidal suspension with low viscosity based on micrometric particles of amphiphilic polymer PO that is biodegradable, hydrosoluble and carrying hydrophobic groups (HG) - alpha-tocopherol- and ionizable hydrophilic groups (IG) -Glu -, ionized at least in part, said particles being suitable for spontaneously combining non-covalently with an AI at pH = 7.0 under isotonic conditions; and with a size between 0.5 and 100 µm. This suspension contains multivalent ions (Mg++) with a polarity opposite that of IH groups of the PO, the ratio r fulfilling the formula (A) where n is the valence of said multivalent ions, [MI] is the molar of multivalent ions, [IG] is the molar concentration of ionizable groups IG, is between 0.3 and 10. |
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This formulation comprises an aqueous colloidal suspension with low viscosity based on micrometric particles of amphiphilic polymer PO that is biodegradable, hydrosoluble and carrying hydrophobic groups (HG) - alpha-tocopherol- and ionizable hydrophilic groups (IG) -Glu -, ionized at least in part, said particles being suitable for spontaneously combining non-covalently with an AI at pH = 7.0 under isotonic conditions; and with a size between 0.5 and 100 µm. This suspension contains multivalent ions (Mg++) with a polarity opposite that of IH groups of the PO, the ratio r fulfilling the formula (A) where n is the valence of said multivalent ions, [MI] is the molar of multivalent ions, [IG] is the molar concentration of ionizable groups IG, is between 0.3 and 10.</description><language>eng ; por</language><subject>HUMAN NECESSITIES ; HYGIENE ; MEDICAL OR VETERINARY SCIENCE ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES</subject><creationdate>2017</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20171013&DB=EPODOC&CC=PT&NR=2043600T$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20171013&DB=EPODOC&CC=PT&NR=2043600T$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OLIVIER SOULA</creatorcontrib><creatorcontrib>ALAIN CONSTANCIS</creatorcontrib><creatorcontrib>CÉCILE BONNET GONNET</creatorcontrib><creatorcontrib>DAVID CHOGNOT</creatorcontrib><title>PHARMACEUTICAL FORMULATIONS FOR THE SUSTAINED RELEASE OF ACTIVE INGREDIENT(S), AS WELL AS THEIR APPLICATIONS, ESPECIALLY THERAPEUTIC</title><description>The present invention concerns new pharmaceutical formulations based on aqueous colloidal suspensions for sustained release of active ingredient(s) -AI - in particular, protein(s) and peptide(s), as well as the applications, especially therapeutic, of these formulations. 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This formulation comprises an aqueous colloidal suspension with low viscosity based on micrometric particles of amphiphilic polymer PO that is biodegradable, hydrosoluble and carrying hydrophobic groups (HG) - alpha-tocopherol- and ionizable hydrophilic groups (IG) -Glu -, ionized at least in part, said particles being suitable for spontaneously combining non-covalently with an AI at pH = 7.0 under isotonic conditions; and with a size between 0.5 and 100 µm. This suspension contains multivalent ions (Mg++) with a polarity opposite that of IH groups of the PO, the ratio r fulfilling the formula (A) where n is the valence of said multivalent ions, [MI] is the molar of multivalent ions, [IG] is the molar concentration of ionizable groups IG, is between 0.3 and 10.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES |
title | PHARMACEUTICAL FORMULATIONS FOR THE SUSTAINED RELEASE OF ACTIVE INGREDIENT(S), AS WELL AS THEIR APPLICATIONS, ESPECIALLY THERAPEUTIC |
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