Patents Assigned to Astellas Pharma Inc.
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Publication number: 20120059038Abstract: [Problem] Provided is a compound which is useful as an agent for treating trichophytosis, protozoan infection and/or Pneumocystis pneumonia. [Means for Solution] Capnodiaceae strain No. 339855 was collected and a polyketide compound was isolated from the cultural solution thereof It was confirmed that the polyketide compound or a salt thereof has a potent anti-Trichophyton activity and is useful as a pharmaceutical, particularly as an agent for treating trichophytosis, thereby completing the present invention. A cyclic compound of the present invention or a salt thereof may be used as agent for preventing or treating trichophytosis, protozoan infection and/or Pneumocystis pneumonia (formerly: carinii pneumonia).Type: ApplicationFiled: May 13, 2010Publication date: March 8, 2012Applicant: Astellas Pharma Inc.Inventors: Keisuke Ohsumi, Teruhisa Masaki
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Patent number: 8128958Abstract: The present invention provides a sustained-release pharmaceutical composition, characterized in that, there are contained tamsulosin or a pharmaceutically acceptable salt thereof and a carrier for a sustained-release pharmaceutical composition and the ratio (Cmin/Cmax ratio) of the plasma tamsulosin concentration at 24 hours after the administration of the preparation per os (Cmin) to the maximum plasma tamsulosin concentration after the administration (Cmax) is about 0.4 or more.Type: GrantFiled: May 10, 2004Date of Patent: March 6, 2012Assignee: Astellas Pharma Inc.Inventors: Kazuhiro Sako, Toyohiro Sawada, Hiromu Kondo, Keiichi Yoshihara, Hiroyuki Kojima
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Publication number: 20120046285Abstract: The invention provides compositions and methods for treating and/or preventing ocular disorders associated with increased intraocular pressure. In particular, the compounds are bradykinin agonists.Type: ApplicationFiled: August 17, 2011Publication date: February 23, 2012Applicants: ASTELLAS PHARMA INC., ALCON RESEARCH, LTD.Inventors: Keith D. Combrink, Suchismita Mohapatra, Mark R. Hellberg, Najam A. Sharif, Ganesh Prasanna, Iok-Hou Pang, Bryon Severns, Hwang-Hsing Chen, Abdelmoula Namil
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Publication number: 20120046292Abstract: [Problem] A compound which is useful as an anti-obesity agent is provided. [Means for Solution] The present inventors have investigated a compound having a DGAT1 inhibitory action, which is promising as an active ingredient of a pharmaceutical composition for treating obesity, type II diabetes mellitus, fatty liver, and diseases associated with these diseases, and as a result, they have found that the diacylethylenediamine compound of the present invention has an excellent DGAT1 inhibitory action, thereby completing the present invention. That is, the diacylethylenediamine compound of the present invention has a DGAT1 inhibitory action, and can be therefore used as an agent for preventing and/or treating obesity, type II diabetes mellitus, fatty liver, and diseases associated with these diseases.Type: ApplicationFiled: April 19, 2010Publication date: February 23, 2012Applicant: ASTELLAS PHARMA INC.Inventors: Tomoaki Kawano, Yasuhiro Yonetoku, Takeshi Hanazawa, Takahiro Nigawara, Hiroki Fukudome, Hiroshi Moritani
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Publication number: 20120034250Abstract: [Problem] The present invention provides a condensed pyrrolopyridine derivative which is useful as an active ingredient for a pharmaceutical composition, in particular, a pharmaceutical composition for preventing or treating diseases caused by undesirable cytokine signal transduction or diseases caused by abnormal cytokine signal transduction. [Means for Solution] The present inventors have extensively studied a compound having a JAK inhibitory action, and as a result, they have found that a condensed pyrrolopyridine derivative which is the compound of the present invention has an excellent JAK inhibitory action, and is therefore useful as an agent for preventing or treating diseases caused by undesirable cytokine signal transduction or diseases caused by abnormal cytokine signal transduction, thereby completing the present invention.Type: ApplicationFiled: April 13, 2010Publication date: February 9, 2012Applicant: Astellas Pharma Inc.Inventors: Shohei Shirakami, Yutaka Nakajima, Jun Maeda, Hiroaki Tominaga, Hiroaki Yamagishi, Takeshi Hondo, Masamichi Inami, Hiroki Morio, Takayuki Inoue, Tsuyoshi Mizutani, Hiroki Ishioka
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Patent number: 8106190Abstract: To provide a novel and excellent agent for treating or preventing nociceptive pain, neuropathic pain, cancer pain, headache, bladder function disorder and the like, based on the inhibitory action on the capsaicin receptor VR1 activation. The present invention was accomplished by confirming that a benzamide derivative characterized by the possession of a benzene ring in which a single ring is condensed on the nitrogen atom of amido group and possession of a lower alkylamino or an amino group substituted with a ring group at the neighboring position of said amido group has a strong inhibitory action on VR1 activation and excellent pharmacological actions based on this and by finding that it can become an excellent agent for treating or preventing VR1-involved diseases such as nociceptive pain, neuropathic pain, cancer pain, headache, bladder function disorder and the like.Type: GrantFiled: November 29, 2006Date of Patent: January 31, 2012Assignee: Astellas Pharma Inc.Inventors: Takahiro Kuramochi, Ryoji Hirabayashi, Yohei Koganemaru, Ryosuke Munakata, Koichi Yonezawa, Tetsuo Kiso
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Publication number: 20120022271Abstract: [Object] A novel method for producing an optically active pyrrolidine compound, which is useful as a production intermediate of a pharmaceutical, and a production intermediate thereof, is provided. [Means for Solution] According to the production method of the present invention, a chloro compound that is a key intermediate can be produced efficiently industrially by subjecting a mixture of regioisomers obtained by reacting an optically active epoxy compound substituted with aryl, which is easily available, with an amine compound, to chlorination. Furthermore, an optically active pyrrolidine compound can be produced industrially efficiently with the key intermediate.Type: ApplicationFiled: April 13, 2010Publication date: January 26, 2012Applicant: ASTELLAS PHARMA INC.Inventors: Atsushi Ohigashi, Takashi Kikuchi
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Patent number: 8101580Abstract: It was shown that bombesin 2 (BB2) receptor antagonists typified by RC-3095 are therapeutic agents for irritable bowel syndrome (IBS), and show excellent efficacy in treating both an abdominal symptom and bowel movement disorder. Thus, the present invention provides a therapeutic agent for irritable bowel syndrome (IBS) which comprises, as an active ingredient, a bombesin 2 (BB2) receptor antagonist as well as a method for treating IBS.Type: GrantFiled: April 19, 2006Date of Patent: January 24, 2012Assignee: Astellas Pharma Inc.Inventor: Mayumi Yamano
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Patent number: 8097592Abstract: A cocrystal of (1S)-1,5-anhydro-1-[3-(1-benzothien-2-ylmethyl)-4-fluorophenyl]-D-glucitol and L-proline. It is a cocrystal of known compound A, which has a constant quality, is superior in storage stability, has no moisture absorptivity, and is suitable as a crystal of a drug substance used for preparing pharmaceuticals.Type: GrantFiled: April 4, 2007Date of Patent: January 17, 2012Assignees: Astellas Pharma Inc., Kotobuki Pharmaceutical Co. Ltd.Inventors: Masakazu Imamura, Keita Nakanishi, Ryota Shiraki, Kenichi Onda, Daisuke Sasuga, Masamichi Yuda
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Publication number: 20110319385Abstract: [Problem] Provided is a compound which has a PDE9-inhibiting action and is useful as an active ingredient for an agent for treating and/or preventing storage dysfunction, voiding dysfunction, and bladder/urethral diseases, and the like. [Means for Solution] The present inventors have investigated a compound which has a PDE9-inhibiting action and is useful as an active ingredient for an agent for treating and/or preventing storage dysfunction, voiding dysfunction, and bladder/urethral diseases, and the like, and thus, have found that an imidazoquinoxaline compound or a triazoloquinoxaline compound has a PDE9-inhibiting action, thereby completing the present invention. The imidazoquinoxaline compound or the triazoloquinoxaline compound of the present invention has a PDE9-inhibiting action and can be used as an agent for preventing and/or treating storage dysfunction, voiding dysfunction, and bladder/urethral diseases, and the like.Type: ApplicationFiled: March 4, 2010Publication date: December 29, 2011Applicant: Astellas Pharma Inc.Inventors: Hiroyuki Kaizawa, Mari Sugita, Hidenori Azami, Ryushi Seo, Takaho Nomura, Satoshi Yamamoto, Hirofumi Yamamoto, Kazuyuki Tsuchiya, Hideki Kubota, Kazunori Kamijo
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Publication number: 20110303570Abstract: Provided is a package of a solid pharmaceutical preparation capable of preventing an unpleasant odor and coloring due to hydrolysis progressing during storage of a solid pharmaceutical preparation containing 1-{[(?-isobutanoyloxyethoxy)carbonyl]aminomethyl}-1-cyclohexane acetic acid. A package of a solid pharmaceutical preparation housing a solid pharmaceutical preparation containing 1-{[(?-isobutanoyloxyethoxy)carbonyl]aminomethyl}-1-cyclohexane acetic acid includes a PTP package, an adsorbent, and an outer packaging material. The PTP package includes the solid pharmaceutical preparation, a container sheet for housing the solid pharmaceutical preparation, and a cover sheet having gas permeability sealing the solid pharmaceutical preparation. The adsorbent includes at least zeolite. The outer packaging material includes a gastight material to house and seal the adsorbent and the PTP package.Type: ApplicationFiled: March 1, 2010Publication date: December 15, 2011Applicant: Astellas Pharma Inc.Inventors: Tomohiro Yoshita, Fumi Izumi, Hiroshi Ohi
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Patent number: 8076348Abstract: [Problem] To provide a compound which can be used in the prevention and/or treatment of diseases in which 5-HT2B receptor and 5-HT7 receptor are concerned, particularly in the treatment of irritable bowel syndrome (IBS) and/or prevention of migraine. [Means for Resolution] It was found that an acylguanidine derivative having a tricyclic structure or a pharmaceutically acceptable salt thereof has a strong antagonism to 5-HT2B receptor and 5-HT7 receptor. In addition, the compound of the present invention having antagonism to both of the receptors showed superior pharmacological action in comparison with the case of the single use of an antagonist selective for either one of the receptors. Based on the above, the compound of the present invention is useful in preventing and/or treating diseases in which 5-HT2B receptor and 5-HT7 receptor are concerned, particularly in treating irritable bowel syndrome (IBS) and/or preventing migraine.Type: GrantFiled: August 7, 2006Date of Patent: December 13, 2011Assignee: Astellas Pharma Inc.Inventors: Hiroyoshi Yamada, Hirotsune Itahana, Ayako Moritomo, Takaho Matsuzawa, Eisuke Nozawa, Shinobu Akuzawa, Koichiro Harada
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Patent number: 8076367Abstract: Compounds useful as GnRH receptor antagonists are provided. The present inventors have further examined propane-1,3-dione derivatives and confirmed as a result that a propane-1,3-dione having 2-(1,3-dihydro-2H-benzimidazol-2-ylidene), or a compound which has benzene or thiophene ring substituted with a group derived from 1-hydroxymethyl, shows excellent availability, in addition to its excellent GnRH receptor antagonism, thereby accomplishing the invention. Since the compound of the invention shows excellent availability, in addition to its strong GnRH receptor antagonism, it can be expected that it exerts superior drug effect in the living body, and it is useful for the treatment of sex hormone dependent diseases such as prostate cancer, breast cancer, endometriosis, uterine leiomyoma, benign prostatic hypertrophy and the like.Type: GrantFiled: March 18, 2010Date of Patent: December 13, 2011Assignee: Astellas Pharma Inc.Inventors: Masaaki Hirano, Eiji Kawaminami, Isao Kinoyama, Shunichiro Matsumoto, Kei Ohnuki, Kazuyoshi Obitsu, Toshiyuki Kusayama
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Publication number: 20110294749Abstract: A compound which may be used for the prevention or treatment of respiratory diseases in which STAT 6 is concerned, particularly asthma, chronic obstructive pulmonary disease and the like is provided. A pyrimidine derivative or a salt thereof, which has an arylamino or arylethylamino group which may be substituted with a specified substituent, at the 2-position, amino group substituted with benzyl group or the like, at the 4-position, and carbamoyl group which may be substituted, at the 5-position, is provided.Type: ApplicationFiled: June 28, 2011Publication date: December 1, 2011Applicant: Astellas Pharma Inc.Inventors: Shinya Nagashima, Hiroshi Nagata, Masahiro Iwata, Masaki Yokota, Hiroyuki Moritomo, Eiichi Nakai, Sadao Kuromitsu, Keiko Ohga, Makoto Takeuchi
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Patent number: 8067586Abstract: The present invention provides a pharmaceutical composition which is useful as a phosphatidylinositol 3 kinase (PI3K) inhibitor and an antitumor agent, and it provides a novel bicyclic or tricyclic fused heteroaryl derivative or a salt thereof which possesses an excellent PI3K inhibiting activity and cancer cell growth inhibiting activity.Type: GrantFiled: January 15, 2010Date of Patent: November 29, 2011Assignees: Astellas Pharma Inc., Ludwig Institute for Cancer Research, Imperial Cancer Research Technology Ltd.Inventors: Masahiko Hayakawa, Hiroyuki Kaizawa, Hiroyuki Moritomo, Ken-Ichi Kawaguchi, Tomonobu Koizumi, Mayumi Yamano, Koyo Matsuda, Minoru Okada, Mitsuaki Ohta
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Patent number: 8067446Abstract: A method for treating a digestive ulcer of the small intestine or stomach is disclosed with a non-purine xanthine oxidase inhibitor that is a carboxylic acid compound, wherein the non-purine xanthine oxidase inhibitor is a carboxylic acid compound of formula (I) or its salt and wherein the terms of formula (I) are herein defined:Type: GrantFiled: February 22, 2007Date of Patent: November 29, 2011Assignee: Astellas Pharma Inc.Inventors: Masakatsu Kawakami, Yoshihiro Keto, Ken Ikeda, Mari Fukuda, Junji Sato
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Publication number: 20110288118Abstract: Disclosed is a pharmaceutical composition comprising a complex between solifenacin or a pharmaceutically acceptable salt thereof and an ion exchange resin, and an acrylic based polymer.Type: ApplicationFiled: May 18, 2011Publication date: November 24, 2011Applicant: Astellas Pharma Inc.Inventors: Tatsunobu YOSHIOKA, Makoto Murai, Hiroaki Tasaki
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Publication number: 20110281919Abstract: An object of the present invention is to provide an agent for treating or preventing digestive ulcer that is effective even to ulcer of small intestine and others, for which gastric acid secretion inhibitors such as proton pump inhibitors are ineffective, and is superior to allopurinol in the efficaciousness and the safety. The pharmaceutical composition of the present invention comprising a non-purine xanthine oxidase inhibitor as the active ingredient is useful as an agent for treating or preventing ulcer that forms in digestive tracts by the attack of gastric acid, pepsin, stress, Helicobacter pylori bacteria, NSAID, etc. In particular, it is useful as an ulcer remedy heretofore unknown in the art as it is effective even for ulcer in small intestine for which gastric/duodenal ulcer remedies that inhibit gastric acid secretion such as proton pump inhibitors are ineffective.Type: ApplicationFiled: July 22, 2011Publication date: November 17, 2011Applicant: Astellas Pharma Inc.Inventors: Masakatsu Kawakami, Yoshihiro Keto, Ken Ikeda, Mari Fukuda, Junji Sato
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Publication number: 20110281906Abstract: A sustained release pharmaceutical composition for tacrolimus, comprising a solid dispersion containing tacrolimus or a pharmaceutically acceptable salt thereof, and a carrier for a sustained release pharmaceutical composition, wherein a dissolution rate of tacrolimus after 4 hours from the beginning of a dissolution test is less than 35%, is disclosed.Type: ApplicationFiled: August 2, 2011Publication date: November 17, 2011Applicant: ASTELLAS PHARMA INC.Inventors: Hiromu Kondo, Hiroyuki Kojima, Keiichi Yoshihara, Yuko Taketani, Takuya Ishii
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Publication number: 20110269744Abstract: [Problem] Provided is a compound which is useful as an agent for treating or preventing 5-HT2C receptor-related diseases, particularly incontinence such as stress urinary incontinence, urge urinary incontinence, mixed urinary incontinence, and the like, sexual dysfunction such as erectile dysfunction syndrome and the like, obesity, and the like. [Means for Solution] The present inventors have investigated compounds having a 5-HT2C receptor agonist activity, which is promising as an active ingredient of a pharmaceutical composition for treating or preventing incontinence such as stress urinary incontinence, urge urinary incontinence, mixed urinary incontinence, and the like, sexual dysfunction such as erectile dysfunction syndrome and the like, obesity, and the like, and have found that the benzazepine compounds of the present invention have an excellent 5-HT2C receptor agonist activity, thereby completing the present invention.Type: ApplicationFiled: March 9, 2011Publication date: November 3, 2011Applicant: ASTELLAS PHARMA INC.Inventors: Hiroyuki KOSHIO, Norio ASAI, Taisuke TAKAHASHI, Takafumi SHIMIZU, Yasuhito NAGAI, Keiko KAWABATA, Karl Bruce THOR