178 results about "Temozolomide" patented technology

The present invention provides combination compositions comprising Pt based compounds, including satraplatin, along with another chemotherapeutic agent such as temozolomide or lonafarnib. The combinations are useful for the prevention or treatment of cancer. Method of using the combinations to treat or prevent cancer are also provided

The invention discloses a temozolomide freeze-dried preparation. Every 100ml of the preparation comprises 1 to 2,000 mg of temozolomide, 1 to 2,000 mg of solubilizer, 801 to 2,000 mg of polysorbate, 5 to 5,000 mg of mannitol, 1 to 2,000 mg of buffering agent, 0.5 to 1,000 mg of hydrochloric acid and the balance of water. The preparation of the invention overcomes the shortcomings of slow dissolving speed, poor redissolution, fussy operation and unqualified solution clarity of the freeze-dried preparation, has the technical effects that: the preparation of the invention has high redissolution; solid is completely dissolved to be clear and colorless by adding water into the freeze-dried preparation and shaking slightly; purity is over 99.5 percent and single impurity content is below 0.3 percent by detecting the purity and the content by using HPLC; through stability experimental investigation, relative substances and content of the preparation are not changed remarkably; and quality is stable.

The present invention provides a process for preparing highly pure Temozolomide base which includes recovery from the purification mother liquors by using an anionic exchange resin. By treating Temozolomide hydrochloride with a mixture of an organic acid, a water miscible organic solvent, and water, Temozolomide free base is obtained in an acidic medium. Due to the high sensitivity of Temozolomide to basic pH values the recovery-including process is especially advantageous because it enables obtaining high yields of highly pure Temozolomide base in acidic conditions. The process for producing Temozolomide base includes hydrolysis of the starting material 8-cyano-3-methyl-[3H]-imidazo[5,1-d]-tetrazin-4-one in acidic medium to obtain highly pure Temozolomide hydrochloride in high yield.

The use of dianhydrogalactitol provides a novel therapeutic modality for the treatment of glioblastoma multiforme. Dianhydrogalactitol acts as an alkylating agent on DNA that creates N⁷ methylation. Dianhydrogalactitol is effective in suppressing the growth of cancer stem cells and is active against tumors that are refractory to temozolomide; the drug acts independently of the MGMT repair mechanism.

Provided are Breast Cancer Resistance Protein (BCRP) inhibitors, P-glycoprotein (P-gp) inhibitors and chemotherapeutic agents for use in the treatment of cancer by combination therapy of the BCRP inhibitor and/or P-gp inhibitor with the chemotherapeutic agent. The chemotherapeutic agent is an imidazotetrazine, e.g. temozolomide.

The present invention relates to a process for preparing temozolomide.

The present invention relates to a parenteral formulation of Temozolomide comprising an excipient selected from the group consisting of bulking agents, buffers, pH adjusting agents, with the proviso that the formulation is free of dissolution enhancing agents.

The invention discloses a lifetime predicting system for a patient with glioblastoma multiforme. The predicting system comprises an input module, an analyzing module and an output module; the analyzing module can establish a survival probability alignment chart based on variables input by a variable input module and calculate the total risk score, wherein the total risk score is a cumulative sum of Karnofsky performance score, tumour excision degree, MGMT gene promoter methylating state, IDH gene state and risk score of a temozolomide treatment policy; and the input module calculates a lifetime predicted value of the patient with glioblastoma multiforme according to the total risk score; the output module is used for outputting the lifetime predicted value of the patient with glioblastoma multiforme. The lifetime predicting system for the patient with glioblastoma multiforme, disclosed by the invention, integrates variables which are easily acquired clinically, and the five variables are input to quickly and accurately acquire a predicted result of the lifetime of the patient with glioblastoma multiforme, so that the time and vigor of a user are saved.

Embodiments of the disclosure include compositions and methods useful for treating cancers that are sensitive to a chemotherapy, such as temozolomide. The methods allow effective cell immunotherapy to be used with chemotherapy when the cell immunotherapy is susceptible to being rendered ineffective by the chemotherapy. In specific aspects, the cancer is being treated by temozolomide (TMZ) and tumor antigen-specific T-cells that are resistant to TMZ.

This invention relates to a novel process for the synthesis of Temozolomide, an antitumor compound, and analogs, and to intermediates useful in this novel process.

The disclosed method rapidly identifies with desired accuracy AML patients, including elderly AML patients, likely to respond to treatment with a combination of a farnesyltransferase inhibitor and one or more of etoposide, teniposide, tamoxifen, sorafenib, paclitaxel, temozolomide, topotecan, trastuzumab and cisplatinum. In an embodiment, the improvements include the use of whole blood rather than the customary bone marrow sample, thus making the assay more accurate, rapid, less intrusive, less expensive as well as less painful. The method includes evaluation of a two-gene expression ratio (RASGRP1:APTX), which with a corresponding threshold, provides sufficient accuracy for predicting the response to the combination treatment. In the preferred embodiment the combination treatment combines tipifarnib (R115777, ZARNESTRA®) with etoposide. Further, the elderly AML patients identified as being likely responsive to the combination treatment with tipinifarb and etoposide have a complete recovery rate comparable to the best therapy available for younger patients.

The invention belongs to the technical field of pharmaceutical preparations and specifically relates to a temozolomide lyophilized powder preparation. The temozolomide lyophilized powder preparation comprises an active ingredient of temozolomide or a pharmaceutically acceptable salt thereof, and a solution before lyophilization further contains an excipient, a wetting agent, a buffer agent, an osmotic pressure regulating agent, a pH regulating agent, water for injection and an organic solvent, wherein the organic solvent is selected from one or any combination of ethanol, acetone, isopropanol, n-propanol, butanone, sec-butyl alcohol and methanol, and is preferably ethanol. The temozolomide lyophilized powder preparation provided by the invention has the advantages of stable quality, high re-dissolution speed and a small residual amount of the organic solvent. The invention further provides a method for preparing the preparation. The process provided by the invention is simple and convenient in preparation process and easy to control production links, the organic solvent accounts for a relatively small part of total volume of material liquid, the pollution to production equipment and environment caused by the organic solvent is reduced, and thus the method is suitable for large-scale production.

There is disclosed a method for treating advanced cancer in patients in need of such treating. Temozolomide and alpha interferon are administered in combination in amounts sufficient to achieve a clinical response.

The present invention discloses a slow release system of Temozolomide as local slow release medicine and biodegraded polymer for treating malignant brain tumor, and the slow release system is implanted into operated area of excising malignant brain tumor for local slow release treatment of malignant brain tumor and prolonging the survival period of the patient. The present invention consists of Temozolomide and biodegraded polymer material in the weight ratio of 1.5 to 10. Temozolomide is fused into biodegraded polymer, and through the corrosion of the polymer and hydrolysis of the polymer, the medicine is released slowly, continuously and stably to act. The polymer is PLA, PGA, PLGA, PFAD-SA and/or the copolymer of p-carboxyl phenoxyl propane and sebasic acid.