CA2238937A1 - Delivery system for localized administration of medicaments to the upper respiratory tract - Google Patents

Delivery system for localized administration of medicaments to the upper respiratory tract

Info

Publication number
CA2238937A1
CA2238937A1 CA002238937A CA2238937A CA2238937A1 CA 2238937 A1 CA2238937 A1 CA 2238937A1 CA 002238937 A CA002238937 A CA 002238937A CA 2238937 A CA2238937 A CA 2238937A CA 2238937 A1 CA2238937 A1 CA 2238937A1
Authority
CA
Canada
Prior art keywords
respiratory tract
upper respiratory
cross
medicament
delivery system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002238937A
Other languages
French (fr)
Other versions
CA2238937C (en
Inventor
Pauline C. Pan
Shan Shan Sheu
Shiuh J. Luo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intercontinental Great Brands LLC
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2238937A1 publication Critical patent/CA2238937A1/en
Application granted granted Critical
Publication of CA2238937C publication Critical patent/CA2238937C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/045Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/445Non condensed piperidines, e.g. piperocaine
    • A61K31/4453Non condensed piperidines, e.g. piperocaine only substituted in position 1, e.g. propipocaine, diperodon
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0012Galenical forms characterised by the site of application
    • A61K9/0053Mouth and digestive tract, i.e. intraoral and peroral administration
    • A61K9/0056Mouth soluble or dispersible forms; Suckable, eatable, chewable coherent forms; Forms rapidly disintegrating in the mouth; Lozenges; Lollipops; Bite capsules; Baked products; Baits or other oral forms for animals
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0012Galenical forms characterised by the site of application
    • A61K9/0053Mouth and digestive tract, i.e. intraoral and peroral administration
    • A61K9/006Oral mucosa, e.g. mucoadhesive forms, sublingual droplets; Buccal patches or films; Buccal sprays
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P11/00Drugs for disorders of the respiratory system
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/36Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2022Organic macromolecular compounds
    • A61K9/205Polysaccharides, e.g. alginate, gums; Cyclodextrin

Abstract

The present invention pertains to delivery systems for the localized administration of a medicament to the upper respiratory tract. The delivery system comprises:
(a) a safe and effective amount of a medicament useful for treating the upper respiratory tract; (b) an ionic polysaccharide; and (c) a cross-linking agent. The present invention provides for the controlled, in situ formation of a thin, bioadhesive film which may bind to the buccal epithelial cells which form the surface of said upper respiratory tract. Said film formation occurs when the delivery system of the present invention comprising a medicament, an ionic polysaccharide and a cross-linking agent, in a pharmaceutically acceptable carrier, is slowly ingested by dissolution through salivation of the pharmaceutically acceptable carrier. By a series of cross-linking reactions, the cross-linking agent polymerizes the ionic polysaccharide to a film in the form of aggregates, which bind to the buccal epithelial cells in the upper respiratory tract. During the in situ cross-linking reaction, the medicament becomes entrapped in the bioadhesive polymer aggregate and thereafter is gradually released, i.e., becomes available through dissolution.
CA002238937A 1996-02-29 1997-01-02 Delivery system for localized administration of medicaments to the upper respiratory tract Expired - Fee Related CA2238937C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US1253996P 1996-02-29 1996-02-29
US60/012,539 1996-02-29
PCT/US1997/000252 WO1997031621A1 (en) 1996-02-29 1997-01-02 Delivery system for localized administration of medicaments to the upper respiratory tract

Publications (2)

Publication Number Publication Date
CA2238937A1 true CA2238937A1 (en) 1997-09-04
CA2238937C CA2238937C (en) 2008-10-14

Family

ID=21755446

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002238937A Expired - Fee Related CA2238937C (en) 1996-02-29 1997-01-02 Delivery system for localized administration of medicaments to the upper respiratory tract

Country Status (5)

Country Link
US (1) US5912007A (en)
EP (1) EP0883400B1 (en)
AU (1) AU1529397A (en)
CA (1) CA2238937C (en)
WO (1) WO1997031621A1 (en)

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Also Published As

Publication number Publication date
US5912007A (en) 1999-06-15
CA2238937C (en) 2008-10-14
EP0883400B1 (en) 2003-12-10
AU1529397A (en) 1997-09-16
EP0883400A1 (en) 1998-12-16
WO1997031621A1 (en) 1997-09-04

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