Peptide/protein suspending formulations
First Claim
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1. A beneficial agent formulation for use in a device which delivers the formulation over an extended delivery period, the formulation comprising:
- (a) at least 5% by weight beneficial agent in the form of solid particles, the beneficial agent particle size being 0.3 to 50 microns; and
(b) a liquid suspension vehicle for suspending the particles in the formulation, wherein the liquid suspension formulation viscosity is sufficient to prevent settling of the agent in the liquid suspension formulation in the device over the extended delivery period.
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Abstract
The present invention provides improved compositions for improving the chemical and physical stability of peptides and proteins. The invention provides a liquid beneficial agent formulation containing a liquid suspension comprising at least 5% by weight beneficial agent and having a viscosity and beneficial agent size which minimizes settling of the agent in suspension over the extended delivery period.
192 Citations
14 Claims
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1. A beneficial agent formulation for use in a device which delivers the formulation over an extended delivery period, the formulation comprising:
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(a) at least 5% by weight beneficial agent in the form of solid particles, the beneficial agent particle size being 0.3 to 50 microns; and (b) a liquid suspension vehicle for suspending the particles in the formulation, wherein the liquid suspension formulation viscosity is sufficient to prevent settling of the agent in the liquid suspension formulation in the device over the extended delivery period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A formulation for sustained controlled delivery from a delivery device over an extended delivery period, the formulation comprising:
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(a) 0.5 to 70% by weight beneficial agent in the form of solid particles having a particle size of 0.3 to 50 microns; and (b) a non-aqueous liquid suspension vehicle comprising a non-aqueous vehicle for suspending the particles in the formulation, polyethylene glycol with a molecular weight of 200 to 1000, and a thickening agent, which is characterized by a formulation viscosity of 100 to 100,000 poise at 37°
C. wherein said formulation viscosity is sufficient to prevent settling of the agent in the suspension formulation in the delivery device over the period of extended delivery. - View Dependent Claims (14)
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Specification