48 results about "Goserelin" patented technology

The invention discloses a Goserelin release microsphere preparation, wherein the Goserelin microsphere contains Goserelin or salt thereof which is 0.1% to 40% of the weight of the microsphere, high molecular material which is biodegradable and biocompatible, has the molecular weight ranged from 5000 to 100,000 daltons and is 60% to 99.9% of the weight of the microsphere, and other medical acceptable auxiliary materials which are 0% to 15% of the weight of the microsphere. The Goserelin or salt thereof is packed or embedded in the high molecular material. The size of the microsphere is 1 to 10 microns and the average size is 5 to 50 microns. The invention further discloses a preparation method and a detecting method for the Goserelin release microsphere preparation. The Goserelin release microsphere preparation of the invention can work for days, weeks, even months by just injecting for one time so the injection times is reduced, the compliance of patient is promoted, and the clinical use is convenient. Furthermore, the patient is convenient to take medicine.

The invention belongs to the field of the synthesis of medicines, which particularly relates to a novel method for synthesizing goserelin by a pure liquid-phase fragment method. In the method for synthesizing the goserelin, the goserelin Pyr-His-Trp-Ser-Tyr-D-Ser(Tbu)-Leu-Arg-Pro-AZgly-NH2 is formed by condensing a pentapeptide fragment Pyr-His-Trp-Ser-Tyr-OH and a tetrapeptide fragment D-Ser(Tbu)-Leu-Arg-Pro-AZgly-NH2 under the existence of a condensing agent. The invention adopts a 5+4 fragment synthesis method and can directly condense the pentapeptide fragment Pyr-His-Trp-Ser-Tyr-OH and the tetrapeptide fragment D-Ser(Tbu)-Leu-Arg-Pro-AZgly-NH2 into the goserelin under the existence of the condensing agent. The method shortens the synthesis period, avoids rigorous reaction conditions in the traditional method, has high yield, good product purity, low cost and mild reaction condition and is suitable for industrialized production.

A pharmaceutical composition has a therapeutically effective amount of at least one of: a pharmaceutically active nasal peptide, its pharmaceutically acceptable salt and its peptidic fragment. The composition also contains an absorbefacient effective amount of THAM in a pharmaceutically acceptable, aqueous liquid diluent or carrier. The composition is provided in a convenient form for nasal administration. In one embodiment, the peptidic fragment may be selected physiologically active lymphokines and monokines, peptidic enzymes, proteic vaccines, peptidic toxoids and personalized proteins derived from genoma. In another embodiment, the peptidic fragment may be selected from the peptide hormones and hormone antagonists buserelin, desmopressin, vasopressin, angiotensin, felypressin, octreotide, somatropin, thyrotropin (TSH), somatostatin, gosereline, thryptorelin and insulin selected from the group consisting of cow and pig, synthetic and recombinant.

The invention discloses a goserelin slow release microsphere preparation and a preparation method thereof. The slow release microsphere preparation comprises, based on the weight of microspheres, 0.5% to 30% (w/w) of goserelin or a salt thereof, 70% to 99.5% of a biodegradable and biocompatible high-molecular material with a molecular weight of 5, 000 to 300, 000 Dalton and 0.1% to 10% of other pharmaceutically acceptable accessories. The slow release microspheres in the invention have an average particle size of 5 to 40 mu m and an entrapment rate of greater than 80%. The slow release microspheres have a slow release period as long as a plurality of days or months, obviously reduce usage frequency of the preparation, improve bioavailability of goserelin, reduce toxic and side effects of the preparation and benefit clinical treatment.

The invention relates to a solid phase synthesis method of goserelin. The method consists of: first reacting RinkAmide MBHA Resin with carbonyldiimidazole (CDI) to obtain an intermediate product, which then reacts with Fmoc-NH-NH2 to obtain Fmoc-NH-NH-CO-NH-Resin, then conducting a programmed reaction, carrying out a condensation reaction in order to connect corresponding amino acids, thus obtaining goserelin resin; performing cutting with a low concentration trifluoroacetic acid solution so as to obtain a crude peptide solution, conducting purification to obtain the goserelin. According to the invention, by reacting a high-activity reactant carbonyldiimidazole with Fmoc-NH-NH2 and Rink Amide MBHA Resin to obtain Fmoc-NH-NH-CO-NH-Resin, the reaction efficiency is greatly improved, so that the reaction can be completed rapidly and efficiently, thus completely solving the problem of difficult synthesis of Fmoc-NH-NH-CO-NH-Resin, and improving the reaction efficiency and yield effectively.

The invention relates to a synthesis method of goserelin. The synthesis method comprises the following steps: respectively synthesizing 1st to 5th pentapeptide fragments by adopting solid phases, and then inducing D-Ser(tBu), thus forming 1st to 6th hexapeptide fragments; synthesizing 7th to 9th tripeptide fragments by using a solid phase or a liquid phase; inducing semicarbazide in the 7th to 9th tripeptide fragments in a liquid phase; coupling the 1st to 6th hexapeptide fragments and the 7th to 9th tripeptide fragments into the goserelin in the liquid phase, thus obtaining a goserelin crude product. According to the synthesis method disclosed by the invention, the yield and the purity of the goserelin are remarkably increased, catalytic reduction is not needed, the synthesis method just involves the technologies of condensation and deprotection of amino acid, the reaction is simple and controllable, and the synthesis method is suitable for industrial production.

An anticarcinogenic slow release formulation carrying an anticancer drug and a synergist is a slow release injection or a slow release implant, and the slow release injection is made from slow release microspheres and a dissolvant. The slow release microspheres comprise anticancer active components and a slow adjuvant, and the dissolvant is a special dissolvant containing a suspending agent which is selected from sodium carboxymethyl cellulose and the like, and the viscosity of the suspending agent is 80cp-3,000cp (at room temperature). The anticancer active components are alkylating agents such as melphalan, ifosfamide and the like, purine analogues such as O6-BG and the like, and/or hormones anticancer drugs selected from triptorelin, goserelin, leuprorelin and a composition selected from epothilone (A-F) and derivatives thereof; the slow release adjuvant is chosen from one of or the copolymer or the mixture of polylactic acid and a copolymer thereof, polifeprosan and the copolymer or the mixture of polylactic acid and sebacic acid copolymer; the slow release implant and the slow release injection are injected or put in tumors or around the tumors, which is beneficial to diffusing the drug in the solid tumors, maintaining high concentration, reducing drug tolerance, being capable of mutual synergy and enhancing curative effects of chemotherapy and/or radiotherapy.

The invention relates to a temperature-controlled sustained-release injection containing a hormone anti-cancer drug, which comprises the anti-cancer drug, an amphiphilic block copolymer, a solvent and a certain amount of drug release regulator, wherein, the mixture of the amphiphilic block copolymer and a solvent without organic solvent has the temperature-sensitive gelatinization feature, which is flowable liquid in the environment that is lower than the body temperature and can be automatically converted to the water-insoluble gel that can not flow and be biodegradable for absorption in an endotherm, and the water-insoluble gel can allow the contained hormone anti-cancer drug to have the local sustained release in a tumor and maintain the effective drug concentration for a plurality of weeks to a plurality of months; the viscosity of the temperature-controlled sustained-release injection is 10cp to 3000cp ( at 5 DEG C to 30 DEG C ), and the gelatinization temperature is 35 DEG C to 37 DEG C. The sustained-release injection can be injected in the tumor or the tumor periphery or be arranged in the postoperative tumor cavity, thus significantly reducing the systemic reaction of the drug, selectively strengthening the treatment effects of chemotherapy, radiotherapy and other non-surgical therapies, and being used for the treatment of the tumors in different stages. The anti-cancer drug can be triptorelin, goserelin, leuprorelin, anastrozole, idoxifene, tamoxifen and other hormone anti-cancer drugs.

The invention discloses a method for synthesizing goserelin with a fragment method. According to the technical scheme, the method includes the following steps that firstly, a first fragment H-Arg-Pro-Azagly-NH2 and a second fragment Pyr-His-Trp-Ser-Tyr-D-Ser(tBu)-Leu-OH are synthesized respectively, then, the first fragment and the second fragment are coupled under the coupling agent condition toobtain crude goserelin, and purification and lyophilization are carried out to obtain pure goserelin. The method has the advantages of simple reaction operation, convenient post-treatment, no catalytic reduction, high yield, low cost and the like, has considerable practical application prospects, and is applicable to industrial production.

This invention relates to the treatment of breast cancer in a subject, for example a female subject. Including methods of: treating metastatic breast cancer; refractory breast cancer; AR-positive breast cancer; AR-positive refractory breast cancer; AR-positive metastatic breast cancer; AR-positive and ER-positive breast cancer; triple negative breast cancer; advanced breast cancer; breast cancer that has failed selective estrogen receptor modulator (SERM) (tamoxifen, toremifene, raloxifene), gonadotropin-releasing hormone (GnRH) agonist (goserelin), aromatase inhibitor (AI) (letrozole, anastrozole, exemestane), cyclin-dependent kinase 4/6 (CDK 4/6) inhibitor (palbociclib (Ibrance), ribociclib (Kisqali), abemaciclib (Vorzenio)), mTOR inhibitor (everolimus), trastuzumab (Herceptin, ado-trastuzumab emtansine), pertuzumab (Perjeta), lapatinib, neratinib (Nerlynx), olaparib (Lynparza) (an inhibitor of the enzyme poly ADP ribose polymerase (PARP)), bevacizumab (Avastin), and/or fulvestrant treatments; metastasis in a subject suffering from breast cancer; HER2-positive; and/or treating a subject suffering from ER mutant expressing breast cancer, comprising administering to the subject a therapeutically effective amount of a selective androgen receptor modulator (SARM) compound.

The invention relates to freeze-dried powder, in particular to goserelin sustained release microsphere freeze-dried powder and a preparation method thereof in the technical field of water-soluble polypeptide drug sustained release long-acting injections. Each microsphere in the freeze-dried powder comprises a shell, each shell wraps a core, each core is temperature-sensitive gel, when the temperature of the temperature-sensitive gel is lower than the body temperature of human bodies, the mobility of the temperature-sensitive gel is good, after the temperature of the temperature-sensitive gel is increased to be equal to the body temperature of the human bodies, the mobility is reduced, then the temperature-sensitive gel is gelatinized to form a gel core, and each shell is a biodegradable material. The goserelin sustained release microsphere freeze-dried powder has the advantages that the encapsulation efficiency reaches 90% or above, drug release is jointly controlled by the internal temperature-sensitive gel cores and external biodegradable sustained release framework materials, and the goserelin sustained release microsphere freeze-dried powder is a double-layered drug release system.

A slowly-release anticancer medicine in the form of injection or implant is disclosed. Said slowly-release injection is composed of a special solvent containing suspending aid and the slowly-release microballs consisting anticance medicine, iterstitial hydrolyte and slowly-releasing auxiliary. Said anticancer medicine is chosen from 5-FU, vincristine, etc. Said interstitial hydrolyte is chosen from collagenase, relaxin, etc. Said slowly-releasing auxiliary is chosen from polylactic acid, FAD, polyethanediol, etc.

The invention provides a synthesis method of goserelin. The synthesis method comprises the following steps: generating pGlu-His (Trt)-Trp (Boc)-Ser (tBu)-Tyr (tBu)-OH and Fmoc-D-Ser (tBu)-Leu-Arg (NO2)-Pro-OH by virtue of a solid-phase synthesis method; carrying out Fmoc removal on the generated Fmoc-D-Ser (tBu)-Leu-Arg (NO2)-Pro-OH, so as to generate NH2-D-Ser (tBu)-Leu-Arg (NO2)-Pro-AzaGly-NH2; carrying out liquid phase coupling on two fragments, namely pGlu-His (Trt)-Trp (Boc)-Ser (tBu)-Tyr (tBu)-OH and NH2-D-Ser (tBu)-Leu-Arg (NO2)-Pro-AzaGly-NH2, and then removing an-NO2 protecting group, so as to obtain a goserelin crude product; and preparing a refined goserelin product through RP-HPLC (Reverse Phase-High Performance Liquid Chromatography) purification and freeze-drying. The method has the beneficial effects that the problem that the synthesis yield is low when a conventional Fmoc/tBu solid-phase reaction system is adopted is solved, the production period is shortened, the method is more suitable for large-scale production. Meanwhile, the production cost is also greatly reduced.