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Fatty acid formulations for oral delivery of proteins and peptides, and uses thereof

  • US 7,605,123 B2
  • Filed: 07/19/2005
  • Issued: 10/20/2009
  • Est. Priority Date: 07/19/2004
  • Status: Active Grant
First Claim
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1. A water soluble solid pharmaceutical composition formulated for oral administration by ingestion, comprising:

  • (a) from about 5 to about 65% w/w of a salt of a fatty acid component, where the salt of a fatty acid component comprises saturated or unsaturated C4, C5, C6, C7, C8, C9, C10, C11, or C12 fatty acids; and

    (b) an insulin compound conjugate comprising an insulin protein coupled to a modifying moiety having a formula;




    X—

    R1

    Y-PAG-Z-R2



    (Formula VI)where,X, Y and Z are independently selected linking groups and each is optionally present, and X, when present, is coupled to the insulin compound by a covalent bond, wherein the linking group is selected from —

    C(O)—

    , —

    O—

    , —

    S—

    , —

    C— and



    N—

    ,R1, if present, is a lower alkyl and may optionally include a carbonyl group;

    R2 is selected from the group consisting of a lower alkyl, optionally including a carbonyl group, and a capping group selected from the group consisting of —

    CH3, —

    H, tosylate, branched or linear C1-6 and an activating group, wherein when R1 present, R2 is a member of the capping group; and

    PAG is a linear or branched carbon chain incorporating one or more polyethylene glycol moieties, and optionally incorporating one or more additional moieties selected from the group consisting of —

    S—

    , —

    O—

    , —

    N—

    , and —

    C(O)—

    ; and

    an enteric coating material for coating of the water soluble solid composition fabricated into a solid form to survive passage through the stomach without substantial loss of the insulin protein.

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