104 results about "Rosiglitazone" patented technology

Rosiglitazone is a drug used to treat type 2 diabetes. Methods for the formation of amorphous rosiglitazone and formulations comprising the amorphous rosiglitazone are described. Other formulations include pulsed-release formulations and formulations for retention in the stomach and upper gastrointestinal tract. Controlled-release dosage form include those wherein the maximum plasma concentration of rosiglitazone occurs greater than one hour after administration to a human and / or wherein less than 75 percent by weight of the rosiglitazone is released at 1 hour after immersion in simulated gastric fluid.

There is provided a pharmaceutical composition that is adapted for pulmonary administration by inhalation, which composition comprises a glitazone, such as pioglitazone or rosiglitazone, and one or more pharmaceutically acceptable carriers and / or excipients, and wherein the glitazone content of the composition consists of at least 95% by weight of the 5R enantiomer and less than 5% by weight of the 5S enantiomer. There is also provided a use and kit.

Co-therapy of an anti-obesity agent, a statin, and a glitazone is disclosed along with fixed combinations thereof. Atorvastatin, rosiglitazone, and orlistat are preferred as the various components. Non-glitazone antidiabetic agents may be optionally added to the therapy and / or to the fixed combination product.

The invention relates to the technical field of medical science, in particular to new application of a ferroptosis inhibitor. The ferroptosis inhibitor is prepared from Liproxstatin-1, Ferrostatin-1,rosiglitazone, pioglitazone, troglitazone and Zileuton. The new application refers to that the inhibitor is applied to treating radiation-induced pulmonary injury diseases. The application has the advantages that (1) radioactive rays trigger radiation-induced pulmonary injury by mediating pulmonary alveoli epithelial cells to have ferroptosis, the ferroptosis specificity inhibitor can be used to prevent and treat radiation-induced pulmonary injury, and has the important meaning on development of new drug for preventing and treating radiation-induced pulmonary injury; and (2) it is found that radioactive rays can cause cell death through the mode of ferroptosis, and application of the ferroptosis inhibitor also has the significant theoretical meaning on guiding research for guiding radioactive rays to treat cancer mechanism.

The invention also provides methods, apparatuses and reagents useful for predicting future atherosclerosis based on expression levels of genes selected from the set of 68 genes with differential expression in response to pioglitazone and rosiglitazone. The invention also discloses reagent sets and biomarkers for predicting progression of atherosclerosis induced by anti-diabetic therapy in a subject. In one particular embodiment the invention provides a method for predict whether a compound will induce atherosclerosis using gene expression data from sub-acute treatments.

The invention provides a method for identifying whether a blood-glucose-lowering traditional Chinese medicine contains pioglitazone or rosiglitazone or not. The method comprises the following steps: carrying out thin layer chromatography on a blood-glucose-lowering traditional Chinese medicine to be detected; finding a suspected spot at a corresponding Rf value part of the pioglitazone and the rosiglitazone. The method is characterized by further comprising the following three steps: 1, collecting a series of one-dimensional surface enhanced Raman spectrums of the suspected spot to obtain a dynamic spectrum pattern of the blood-glucose-lowering traditional Chinese medicine to be detected; 2, pre-treating the dynamic spectrum pattern and drawing to obtain a two-dimensional correlation surface enhanced Raman spectrum of the blood-glucose-lowering traditional Chinese medicine to be detected; 3, judging whether the blood-glucose-lowering traditional Chinese medicine contains the pioglitazone or the rosiglitazone or not according to the two-dimensional correlation surface enhanced Raman spectrum of the blood-glucose-lowering traditional Chinese medicine to be detected. According to the technical scheme provided by the invention, whether the blood-glucose-lowering traditional Chinese medicine contains the pioglitazone or the rosiglitazone or not can be identified rapidly; the detection result is accurate and reliable, the cost is low and the operation is convenient.

The present invention relates to rosiglitazone and its pharmaceutically acceptable salts free of at least one of the process related impurities, in particular the dehydro and the succinic acid impurities of rosiglitazone, wherein said impurities are present in an amount of about 05 mg to not more than about 15 mg, and processes for their preparation.

There is provided a pharmaceutical composition that is adapted for pulmonary administration by inhalation, which composition comprises a glitazone, such as pioglitazone or rosiglitazone, and one or more pharmaceutically acceptable carriers and / or excipients, and wherein the glitazone content of the composition consists of at least 95% by weight of the 5R enantiomer and less than 5% by weight of the 5S enantiomer. There is also provided a use and kit.

The present invention relates to a kind of slow released preparation containing metformin hydrochloride and rosiglitazone and its preparation process. The preparation consists of slow released metformin hydrochloride and quickly released rosiglitazone. The extracorporeal leaching test shows that rosiglitazone is released in over 75 % in 30 min. The metformin hydrochloride is released in 15-40 % in the first 1 hr, 50-70 % in the first 4 hr, and over 75 % in the first 8 hr. The slow released preparation containing metformin hydrochloride and rosiglitazone has mild and lasting blood sugar reduction, capacity of avoiding hypoglycemia, gastrointestinal discomfort and other untoward reaction, decreased medicine taking times and raised compliance. The present invention also discloses the extracorporeal slow releasing characteristic and preparation process of the slow released preparation.

A novel process for the preparation of a compound of the formula (II), which is useful as intermediate compound for the preparation of thiazolidinedione derivatives, such as rosiglitazone, pioglitazone, troglitazone and ciglitazone, is disclosed. The novel process comprising reacting a compound of the formula (III) with a compound of the formula (IV) in a mixture of a non-polar water immiscible organic solvent and water (two phase system) with an alkali metal hydroxide or an alkali metal carbonate as a base in the presence of a phase transfer catalyst. In the first aspect of the present invention comprising reacting 2-(N-methyl-N-(2- pyridyl) ethanol with 4-fluorobenzaldehyde in the mixture of a non-polar water immiscible organic solvent, preferably toluene, and water with an alkali metal hydroxide or an alkali metal carbonate as a base, preferably potassium hydroxide, in the presence of a phase transfer catalyst, e.g. tetra n-butylammonium hydrogensulphate or benzyltriethylammonium chloride, to obtain 4-[2-(N-methyl-N-(2- pyridyl)amino)ethoxy]benzaldehyde, which is the key intermediate for preparing rosiglitazone and its salts, e.g. maleate salt or phosphate salt, useful in the treatment of Type II diabetes.

The invention relates to a sustained-release preparation of compound metformin hydrochloride rosiglitazone and a preparation method thereof; wherein, rosiglitazone and metformin hydrochloride have slow releasing characteristic in an in-vitro dissolution test, the rosiglitazone is released by 10-30 percent for a first hour, and is released by 60-80 percent for a fourth hour, and is released by morethan 80 percent for an eighth hour; the metformin hydrochloride is released by 15-40 percent for a first hour, is released by 50-70 percent for a fourth hour, and is released by more than 75 percentfor an eighth hour. The formula is mild and has prolonged action of glucose reduction, so as to avoid adverse reaction such as hypoglycemia and gastrointestine malaise, reduce taking times (one or twotimes each day), and improve compliance of a patient. The invention discloses the in-vitro drug-releasing characteristic of the sustained-release preparation and the preparation method thereof.

The present invention provides a compound of the formula (I): wherein A represents a ring group connected to the oxygen atom by a C1 to C6 hydrocarbon chain, R is hydrogen or a C1-C4 alkyl, and Q is hydrogen, or an amine protecting group such as acetyl, trifluoroacetyl, benzoyl, benzyl, or trityl, is useful in making thiazolidinedione derivatives (formula (II)), such as pioglitazone, rosiglitazone and troglitazone.

A composite medicine for treating polycystic kidney disease contains the epoxidase 2(COX-2) specific depressant and the thiazolidbione-type medicine.