Pharmaceutical formulations and systems for improved absorption and multistage release of active agents
First Claim
1. A pharmaceutical formulation, comprising:
- (a) fenofibrate having a first fraction and a second fraction, wherein the first fraction is comprised of a plurality of solid particles; and
(b) a pharmaceutically acceptable vehicle comprising at least one compound selected front the group consisting of a hydrophilic surfactant, a lipophilic surfactant, a triglyceride and a solubilizer, wherein said formulation is encapsulated in an exterior capsule and the first fraction and the second fraction are segregated the first fraction of the fenofibrate is suspended in the vehicle and the second fraction of the fenobibrate is solubilized in the vehicle, said first fraction representing about 5 wt. % to about 80 wt. % of the total fenofibrate and said second fraction representing about 20 wt. % to about 95 wt. % of the total fenofibrate.
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Abstract
The present invention pertains to pharmaceutical formulations and systems for delivery of active agents, wherein a first fraction of an active agent is suspended in a vehicle and a second fraction of active agent is solubilized in the vehicle, with the suspended fraction representing about 5 wt. % to about 80 wt. % of the active agent and the second fraction representing about 20 wt. % to about 95 wt. % of the active agent. One or more additional active agents, which may be fully solubilized, partially solubilized, or suspended, may also be present. The first and second fractions of the active agent may or may not have different release profiles. Generally, a significant fraction of the solubilized drug will release rapidly, providing for rapid onset, while the suspended drug may be formulated for delayed and/or sustained release.
256 Citations
86 Claims
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1. A pharmaceutical formulation, comprising:
- (a) fenofibrate having a first fraction and a second fraction, wherein the first fraction is comprised of a plurality of solid particles; and
(b) a pharmaceutically acceptable vehicle comprising at least one compound selected front the group consisting of a hydrophilic surfactant, a lipophilic surfactant, a triglyceride and a solubilizer, wherein said formulation is encapsulated in an exterior capsule and the first fraction and the second fraction are segregated the first fraction of the fenofibrate is suspended in the vehicle and the second fraction of the fenobibrate is solubilized in the vehicle, said first fraction representing about 5 wt. % to about 80 wt. % of the total fenofibrate and said second fraction representing about 20 wt. % to about 95 wt. % of the total fenofibrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
- (a) fenofibrate having a first fraction and a second fraction, wherein the first fraction is comprised of a plurality of solid particles; and
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46. A pharmaceutical system for administration of an fenofibrate, comprising:
- (a) fenofibrate; and
(b) a pharmaceutically acceptable vehicle comprising at least one compound selected from the group consisting of a hydrophilic surfactant, a lipophilic surfactant, a triglyceride and a sohtbilizer, wherein the relative amounts of the fenofibrate and the vehicle are such that upon admixture thereof, a first fraction of the fenofibrate is suspended in the vehicle, and a second fraction of the fenofibrate is solubilized in the vehicle, wherein said first and second fractions of are encapsulated in an exterior capsule and the first fraction and the second fraction are segregated, and wherein the second fraction represents about 20 wt. % to about 95 wt. % of the total fenofibrate in the formulation. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86)
- (a) fenofibrate; and
Specification