Patent application number | Description | Published |
20090036389 | Polymeric Micelle Formulations of Hydrophobic Compounds and Methods - Provided are cosolvent evaporation methods and compositions for improving the solubility of hydrophobic compounds, including therapeutic agents such as anticancer drugs, polyene antibiotics, antilipidemic agents, and hydrophobic compounds used in various industries, and/or for reducing the toxicity of certain hydrophobic therapeutic agents, especially polyene antibiotics, in particular, Amphotericin B (AmB), and therapeutics such as paclitaxel, tamoxifen, an acylated prodrug or an acylated cis-platin, by incorporating these agents within micelles comprising an amphiphilic block-forming copolymer. | 02-05-2009 |
20090148509 | ENCAPSULATION AND DEAGGREGATION OF POLYENE ANTIBIOTICS USING POLY(ETHYLENE GLYCOL)-PHOSPHOLIPID MICELLES - Amphotericin B (or other hydrophobic compound) is encapsulated in a deaggregated form in micelles of monomethoxy poly(ethylene glycol)-phospholipid (as specifically exemplified, the phospholipid is 1,2 di-stearoyl-sn-glycero-3-phosphatidyl ethanolamine) formed by solvent evaporation. Advantageously, the hydration of the dried drug-polymer film is carried at between about 25° C. and about 80° C. The micelles can be reconstituted with the Amphotericin B (or other hydrophobic compound) in a deaggregated state and safely used in therapy for fungal infections of humans or animals, especially for systemic fungal infections, or other desired application. The polyene micellar formulations described herein are reduced in toxicity as compared with those polyene formulations in which there is significant occurrence of aggregated polyenes. | 06-11-2009 |
20090232762 | COMPOSITIONS FOR DELIVERY OF THERAPEUTIC AGENTS - The invention provides a polyamide compounds and compositions, in addition to methods for their preparation and methods for their use. The invention also provides micelle compositions that include encapsulated therapeutic agents, for example, nucleic acids or prodrugs, and methods for their preparation. The invention further provides methods of delivering therapeutic agents to cells and methods of activating therapeutic prodrugs. | 09-17-2009 |
20100119529 | ELASTIN-LIKE POLYMER DELIVERY VEHICLES - In invention concerns elastin-like polymer (ELP) drug delivery compositions and methods for the use thereof. In some aspects ELP delivery vehicles may be used to deliver therapeutic drugs such as Hsp90 antagonists. Furthermore, embodiments of the invention concern in vivo delivery with ELP compositions directed to target sites by the application of local hyperthermia therapy. Methods of the invention may have particular utility in the delivery of geldanamycin and related drugs. | 05-13-2010 |
20100203114 | MICELLE ENCAPSULATION OF THERAPEUTIC AGENTS - The invention provides 17 AAG encapsulated in micelle particles. The micelles can be comprised of safe poly(ethylene glycol)-block-poly(lactic acid) (PEG-PLA). A significant advantage of PEG-PLA as a carrier is that it is less toxic than Cremophor® EL or DMSO. Additionally, PEG-PLA micelles are easier to handle than DMSO and they do not possess foul odors, which is a problem associated with 17-AAG formulations currently in clinical trials. The invention also provides methods of preparing active agents encapsulated micelles and therapeutic methods of using the micelles and their corresponding formulations, such as for the inhibition of Hsp 90, and/or for the treatment of cancer. | 08-12-2010 |
20100210575 | STRUCTURING EFFECT OF CHOLESTEROL IN PEG-PHOSPHOLIPID MICELLES, DRUG DELIVERY OF AMPHOTERICIN B, AND COMBINATION ANTIFUNGALS - The disclosure herein relates to embodiments of compositions and methods in connection with polymeric micelles including PEG-phospholipids. Embodiments also relate to the controlled release of pharmaceutical agents in the context of drug delivery. Further disclosed are embodiments of PEG-DSPE/Cholesterol micelle formulations prepared with an antifungal agent, Amphotericin B, with capabilities including slow release of the agent in a deaggregated state. In embodiments, micellar preparations with Amphotericin B are compatible with solubility in aqueous salt solutions, thus allowing for concurrent co-administration of other pharmaceutical agents and/or sodium supplementation. In embodiments, polymeric micelle compositions are employed in combination antifungal therapeutic approaches such as Amphotericin B and other antifungal agents. Also disclosed herein are compositions and methods relating to combinations including AmB:PEG-DSPE, rapamycin:PEG-DSPE, and/or 5-fluorocytosine. | 08-19-2010 |
20110076308 | MICELLE ENCAPSULATION OF THERAPEUTIC AGENTS - The invention provides active agents, such as paclitaxel, rapamycin, or 17-AAG, encapsulated by safe poly(ethylene glycol)-block-poly(lactic acid) (“PEG-b-PLA”) micelles. The compositions provide effective solubilization of drug combinations, such as paclitaxel, rapamycin, and 17-AAG, as well as others described herein. A significant advantage of PEG-b-PLA as a carrier is that it is less toxic than Cremophor® EL or DMSO, which are used in currently known compositions. Additionally, PEG-b-PLA micelles are easier to handle than DMSO and they do not possess a foul odor, which is a problem with formulations currently in clinical trials. Accordingly, the invention provides stable and biocompatible drug formulations that improve bioavailabilty without causing toxicity. It was also found that larger doses of individual drugs in micelle formulations can be administered compared to non-micelle formulations. | 03-31-2011 |
20120276171 | MICELLE ENCAPSULATION OF THERAPEUTIC AGENTS - The invention provides active agents, such as paclitaxel, rapamycin, or 17-AAG, encapsulated by safe poly(ethylene glycol)-block-poly(lactic acid) (“PEG-b-PLA”) micelles. The compositions provide effective solubilization of drug combinations, such as paclitaxel, rapamycin, and 17-AAG, as well as others described herein. A significant advantage of PEG-b-PLA as a carrier is that it is less toxic than Cremophor® EL or DMSO, which are used in currently known compositions. Additionally, PEG-b-PLA micelles are easier to handle than DMSO and they do not possess a foul odor, which is a problem with formulations currently in clinical trials. Accordingly, the invention provides stable and biocompatible drug formulations that improve bioavailability without causing toxicity. It was also found that larger doses of individual drugs in micelle formulations can be administered compared to non-micelle formulations. | 11-01-2012 |
20120309780 | MICELLE COMPOSITION OF POLYMER AND PASSENGER DRUG - Hydrophobic drugs become more practical for treatments by being encapsulated in micelle compositions for increasing solubility. Micelle compositions may include an excipient tocopherol and/or prodrug formulations of the drug. Micelles extend the time period the drug remains in the micelles to improve drug circulation time and thereby drug delivery. Hydrophobic drugs for micelle encapsulation may include rapamycin, geldanamycin, and paclitaxel. Administration of these micelle compositions does not require Cremophor EL or Tween 80, avoiding serious side effects associated with these products which would previously accompany such drug administration. | 12-06-2012 |
20120321715 | MICELLES FOR THE SOLUBILIZATION OF GOSSYPOL - The invention provides biocompatible micelles loaded with one or more active agents. The micelles can encapsulate anticancer drugs such as gossypol, and combinations of drugs, such as gossypol and paclitaxel, gossypol and 17-AAG, gossypol and cyclopamine, gossypol, paclitaxel, and 17-AAG, and gossypol, paclitaxel, and cyclopamine. The micelle compositions provide effective solubilization of difficult to solubilize drug combinations without the need for additional surfactants that can be toxic to patients. Thus, the invention provides stable and biocompatible drug formulations that improve bioavailability without causing toxicity. | 12-20-2012 |
20130171207 | MICELLE ENCAPSULATION OF A COMBINATION OF THERAPEUTIC AGENTS - The invention provides active agents, such as paclitaxel, rapamycin, or 17-DMAG, encapsulated by safe poly(ethylene glycol)-block-poly(lactic acid) (“PEG-b-PLA”) micelles. The compositions provide effective solubilization of drug combinations, such as paclitaxel, rapamycin, and 17-DMAG, as well as others described herein. A significant advantage of PEG-b-PLA as a carrier is that it is less toxic than Cremophor® EL or DMSO, which are used in currently known compositions. Additionally, PEG-b-PLA micelles are easier to handle than DMSO and they do not possess a foul odor, which is a problem with formulations currently in clinical trials. Accordingly, the invention provides stable and biocompatible drug formulations that improve bioavailability without causing toxicity. It was also found that larger doses of individual drugs in micelle formulations can be administered compared to non-micelle formulations. | 07-04-2013 |
Patent application number | Description | Published |
20140072602 | MICELLE ENCAPSULATION OF A COMBINATION OF THERAPEUTIC AGENTS - The invention provides active agents, such as paclitaxel, rapamycin, or 17-DMAG, encapsulated by safe poly(ethylene glycol)-block-poly(lactic acid) (“PEG-b-PLA”) micelles. The compositions provide effective solubilization of drug combinations, such as paclitaxel, rapamycin, and 17-DMAG, as well as others described herein. A significant advantage of PEG-b-PLA as a carrier is that it is less toxic than Cremophor® EL or DMSO, which are used in currently known compositions. Additionally, PEG-b-PLA micelles are easier to handle than DMSO and they do not possess a foul odor, which is a problem with formulations currently in clinical trials. Accordingly, the invention provides stable and biocompatible drug formulations that improve bioavailability without causing toxicity. It was also found that larger doses of individual drugs in micelle formulations can be administered compared to non-micelle formulations. | 03-13-2014 |
20150025106 | THERMOGEL FORMULATION FOR COMBINATION DRUG DELIVERY - The invention provides a drug delivery system for a combination of therapeutic agents. The system includes a water soluble biodegradable ABA-type triblock copolymer that possesses thermosensitive gelation properties. The system can form a stable thermogel that includes a combination of therapeutic agents including, for example, rapamycin, paclitaxel, and 17-AAG. After administration to a subject, the drugs are released at a controlled rate from the thermogel, which biodegrades into non-toxic components. The polymer system can also function to increase the solubility and stability of drugs in the composition. | 01-22-2015 |