Pharmaceutical formulations
First Claim
1. A water-in-oil pharmaceutical formulation for oral or rectal administration comprising a hydrophilic phase dispersed in a lipophilic phase to form an emulsion,wherein said hydrophilic phase comprises (a) water, (b) a biologically active material and (c) in association with the biologically active material, lecithin or a lecithin precursor,wherein said lipophilic phase comprises (a) one or more oils, (b) a phospholipid and (c) a lipophilic surfactant,and wherein an emulsion is formed from said hydrophilic phase dispersed in said lipophilic phase.
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Abstract
A Pharmaceutical formulation comprises a biologically active material such as insulin, erythropoietin, calcitonin and growth hormone, and, associated with it, a phospholipid for forming a material which participates in the alpha-glycerol or other pathways for the formation of lecithins which are found in the intestinal epithelial cell. Biologically active protein orally administered in such a formulation are bioavailable and bioactive.
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Citations
46 Claims
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1. A water-in-oil pharmaceutical formulation for oral or rectal administration comprising a hydrophilic phase dispersed in a lipophilic phase to form an emulsion,
wherein said hydrophilic phase comprises (a) water, (b) a biologically active material and (c) in association with the biologically active material, lecithin or a lecithin precursor, wherein said lipophilic phase comprises (a) one or more oils, (b) a phospholipid and (c) a lipophilic surfactant, and wherein an emulsion is formed from said hydrophilic phase dispersed in said lipophilic phase.
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20. A water-in-oil pharmaceutical formulation for oral or rectal administration comprising a hydrophilic phase dispersed in a lipophilic phase to form an emulsion,
wherein said hydrophilic phase comprises (a) water, (b) a biologically active material and (c) in association with the biologically active material lecithin or a lecithin precursor, wherein said lipophilic phase comprises (a) materials that can be used to form a chylomicron matrix, (b) a phospholipid and (c) a lipophilic surfactant, and wherein an emulsion is formed from said hydrophilic phase dispersed in said lipophilic phase.
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40. A water-in-oil pharmaceutical formulation for oral or rectal administration comprising a hydrophilic phase dispersed in a lipophilic phase to form an emulsion,
wherein said hydrophilic phase comprises (a) water, (b) a biologically active material and (c) in association with the biologically active material, lecithin or a lecithin precursor comprising a phospholipid, wherein said lipophilic phase comprises (a) one or more oils, (b) a phospholipid and (c) a lipophilic surfactant, and wherein an emulsion is formed from said hydrophilic phase dispersed in said lipophilic phase.
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41. A water-in-oil pharmaceutical formulation for oral or rectal administration comprising a hydrophilic phase dispersed in a lipophilic phase to form an emulsion,
wherein said hydrophilic phase comprises (a) water, (b) a biologically active material and (c) in association with the biologically active material, a phospholipid, wherein said phospholipid has the general formula: - ##STR4## and wherein each of R1 and R2 independently represents an acyl group and X represents a hydrogen atom or a phospholipid headgroup,
wherein said lipophilic phase comprises (a) one or more oils, (b) a phospholipid and (c) a lipophilic surfactant, and wherein an emulsion is formed from said hydrophilic phase dispersed in said lipophilic phase.
- ##STR4## and wherein each of R1 and R2 independently represents an acyl group and X represents a hydrogen atom or a phospholipid headgroup,
Specification