Gabapentin

PRINCETON, N.J., Oct. 30, 2024 (GLOBE NEWSWIRE) -- Grace Therapeutics, Inc. (Nasdaq: GRCE) (Grace Therapeutics or the Company), a late-stage, biopharma company advancing GTx-104, its novel injectable formulation of nimodipine that addresses high unmet medical needs for a rare disease, aneurysmal subarachnoid hemorrhage (aSAH), today announced it will host a virtual key opinion leader (KOL) event on Wednesday, November 20, 2024 at 2:00 PM ET. To register, click here. The event will feature Abhishek Ray, MD (University Hospitals) and Andrew Webb, PharmD, BCCCP (Massachusetts General Hospital), who will discuss the high unmet medical need and current treatment landscape for patients suffering from aneurysmal Subarachnoid Hemorrhage (aSAH), a rare and life-threatening medical emergency. A live question and answer session will follow the formal presentations. About Abhishek Ray, MD Abhishek Ray, MD, is a fellowship-trained, board-certified neurological surgeon at University Hospitals and Associate Professor of neurological surgery at Case Western Reserve University School of Medicine. He specializes in caring for people with cerebrovascular disease (brain aneurysms, stroke, AVMs), pituitary tumors and meningiomas, and in minimally invasive techniques to treat degenerative spine disease. In neurological surgery, there are often multiple ways to treat a single problem, and Dr. Ray is committed to providing each patient with an individualized care plan to optimize results. In 2021, 2022, 2023, and 2024, he was selected by his peers to be included in Cleveland Magazine’s list of Top Doctors. After completing his undergraduate degree in biological systems engineering at the University of California – Davis, Dr. Ray went back to his hometown to attend medical school at the University of Kansas School of Medicine in Kansas City, Kansas, where he was elected to be an ambassador of the school and was inducted into the Alpha Omega Alpha Honor Medical Society. He then went on to complete neurological surgery residency at University Hospitals/Case Western Reserve University School of Medicine, where he also completed fellowship training in neuro-interventional surgery. Dr. Ray stayed on as faculty at UH/Case Western Reserve University School of Medicine to advance neurosurgical education there. He created a unique and comprehensive neurological surgery elective for second-year medical students, of which he is now the course director. He has been an instructor at national skull base courses for neurosurgical residents and fellows and has served as editor of the neuro-interventional section of CNS Nexus, an online library of neurosurgical cases to better prepare trainees for the operating room. About Andrew Webb, PharmD, BCCCP Andrew Webb, PharmD, BCCCP, is a board-certified neurocritical care clinical pharmacy specialist at Massachusetts General Hospital (MGH) and serves as adjunct clinical faculty at Northeastern University School of Pharmacy and Pharmaceutical Sciences. His clinical and research interests include subarachnoid hemorrhage, status epilepticus, traumatic brain injury, and optimizing the medical management of neurocritically ill patients and his clinical practice is on the multidisciplinary neurocritical care team at MGH’s 22-bed neurosciences intensive care unit. Dr. Webb is originally from Rhode Island and completed his undergraduate studies and Doctor of Pharmacy at the University of Rhode Island. He then completed his pharmacy practice residency at Mayo Clinic in Rochester, MN followed by residency in critical care at Oregon Health & Science University in Portland, OR. Dr. Webb serves on the MGH Comprehensive Stroke Center Quality Taskforce and the MGH Neurology Quality Assurance and Committee on Patient Safety, focusing on improving the quality, safety, and effectiveness of medication therapy in stroke, subarachnoid hemorrhage, and other neurologic conditions. He is active in the Neurocritical Care Society, American College of Clinical Pharmacy, and Society for Critical Care Medicine and serves on several committees within these organizations related to critical care and neurology practice, research, and education. He has lectured regionally and nationally on the pharmacotherapy of subarachnoid hemorrhage, status epilepticus, and the unique challenges of pharmacotherapy in neurocritical care. About aneurysmal Subarachnoid Hemorrhage (aSAH) aSAH is bleeding over the surface of the brain in the subarachnoid space between the brain and the skull, which contains blood vessels that supply the brain. A primary cause of such bleeding is the rupture of an aneurysm. Approximately 70% of aSAH patients experience death or dependence, and more than 30% die within one month of hemorrhage. Approximately 50,000 patients in the United States are affected by aSAH per year, based on market research. Outside of the United States, annual cases of aSAH are estimated at approximately 60,000 in the European Union, and approximately 150,000 in China. About the Grace Therapeutics Asset Portfolio GTx-104 is a clinical stage, novel, injectable formulation of nimodipine being developed for intravenous (IV) infusion in aSAH patients to address significant unmet medical needs. The unique nanoparticle technology of GTx-104 facilitates aqueous formulation of insoluble nimodipine for a standard peripheral IV infusion. GTx-104 provides a convenient IV delivery of nimodipine in the Intensive Care Unit potentially eliminating the need for nasogastric tube administration in unconscious or dysphagic patients. Intravenous delivery of GTx-104 also has the potential to lower food effects, drug-to-drug interactions, and eliminate potential dosing errors. Further, GTx-104 has the potential to better manage hypotension in aSAH patients. GTx-104 has been administered in over 150 healthy volunteers and was well tolerated with significantly lower inter- and intra-subject pharmacokinetic variability compared to oral nimodipine. The addressable market in the United States for GTx-104 is estimated to be about $300 million, based on market research. GTx-102 is a novel, concentrated oral-mucosal spray of betamethasone intended to improve neurological symptoms of Ataxia-Telangiectasia (A-T), for which there are currently no FDA-approved therapies. GTX-102 is a stable, concentrated oral spray formulation comprised of the gluco-corticosteroid betamethasone that, together with other excipients can be sprayed conveniently over the tongue of the A-T patient and is rapidly absorbed. The further development of GTx-102 has been deprioritized in favor of our focus on development of GTx-104. It is also possible that we may license or sell our GTx-102 drug candidate. GTx-101 is a non-narcotic, topical bio-adhesive film-forming bupivacaine spray designed to ease the symptoms of patients suffering with postherpetic neuralgia (PHN). GTx-101 is administered via a metered-dose of bupivacaine spray and forms a thin bio-adhesive topical film on the surface of the patient’s skin, which enables a touch-free, non-greasy application. It also comes in convenient, portable 30 ml plastic bottles. Unlike oral gabapentin and lidocaine patches, we believe that the biphasic delivery mechanism of GTx-101 has the potential for rapid onset of action and continuous pain relief for up to eight hours. No skin sensitivity was reported in a Phase 1 trial. The further development of GTx-101 has been deprioritized in favor of our focus on development of GTx-104. It is also possible that we may license or sell our GTx-101 drug candidate. About Grace Therapeutics Grace Therapeutics is a late-stage biopharma company with drug candidates addressing rare and orphan diseases. Grace Therapeutics’s novel drug delivery technologies have the potential to improve the performance of currently marketed drugs by achieving faster onset of action, enhanced efficacy, reduced side effects, and more convenient drug delivery. Grace Therapeutics’s lead clinical assets have each been granted Orphan Drug Designation by the FDA, which provides seven years of marketing exclusivity post-launch in the United States, and additional intellectual property protection with over 40 granted and pending patents. Grace Therapeutics’s lead clinical asset, GTx-104, is an intravenous infusion targeting aneurysmal Subarachnoid Hemorrhage (aSAH), a rare and life-threatening medical emergency in which bleeding occurs over the surface of the brain in the subarachnoid space between the brain and skull. For more information, please visit: www.gracetx.com. Forward-Looking Statements Statements in this press release that are not statements of historical or current fact constitute "forward-looking statements" within the meaning of the U.S. Private Securities Litigation Reform Act of 1995, as amended, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and "forward-looking information" within the meaning of Canadian securities laws (collectively, "forward-looking statements"). Such forward-looking statements involve known and unknown risks, uncertainties, and other factors that could cause the actual results of Grace Therapeutics to be materially different from historical results or from any future results expressed or implied by such forward-looking statements. In addition to statements which explicitly describe such risks and uncertainties, readers are urged to consider statements containing the terms "believes," "belief," "expects," "intends," "anticipates," "estimates", "potential," "should," "may," "will," "plans," "continue", "targeted" or other similar expressions to be uncertain and forward-looking. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release. The forward-looking statements in this press release, including statements regarding the timing of a data readout from the Company’s Phase 3 STRIVE-ON safety trial of GTx-104, the timing of the Company’s planned NDA submission with the FDA in connection with the Company's Phase 3 STRIVE-ON safety trial, GTx-104’s commercial prospects; the size of the addressable market for GTx-104, the Company’s beliefs regarding the potential benefits of GTx-104, including GTx-104's potential to bring enhanced treatment options to patients suffering from aSAH, and the anticipated benefits and future development, license or sale of the Company's other drug candidates are based upon Grace Therapeutics's current expectations and involve assumptions that may never materialize or may prove to be incorrect. Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of various risks and uncertainties, including, without limitation: (i) the success and timing of regulatory submissions of the Phase 3 STRIVE-ON safety trial for GTx-104; (ii) regulatory requirements or developments and the outcome and timing of the proposed NDA application for GTx-104; (iii) changes to clinical trial designs and regulatory pathways; (iv) legislative, regulatory, political and economic developments; and (v) actual costs associated with Grace Therapeutics's clinical trials as compared to management's current expectations. The foregoing list of important factors that could cause actual events to differ from expectations should not be construed as exhaustive and should be read in conjunction with statements that are included herein and elsewhere, including the risk factors detailed in documents that have been and are filed by Grace Therapeutics from time to time with the Securities and Exchange Commission and Canadian securities regulators. All forward-looking statements contained in this press release speak only as of the date on which they were made. Grace Therapeutics undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made, except as required by applicable securities laws. For more information, please contact: Grace Therapeutics Contact: Prashant KohliChief Executive OfficerTel: 609-322-1602Email: info@gracetx.com www.gracetx.com Investor Relations: LifeSci AdvisorsMike MoyerManaging DirectorPhone: 617-308-4306Email: mmoyer@lifesciadvisors.com

随着人口老龄化，以糖尿病性周围神经病理性疼痛（DPNP）、带状疱疹后神经痛（PHN） 为代表的周围神经病理性疼痛 （pNP）的发病率逐年增加。与此同时，过去20年对疼痛和痛觉的神经生物学研究也不断取得积极的进展，生物制药行业在探索不同机制pNP新药开发方面初见成效。 尽管已获批上市超过20年，加巴喷丁、普瑞巴林仍旧是周围神经病理性疼痛临床治疗的金标准。普瑞巴林作为第二代钙离子通道调节剂，与加巴喷丁相比，增强了与α2-δ 亚基的亲和力，滴定和起效更快，但仍旧不可避免嗜睡、头晕、周围性水肿、视物模糊等不良反应的发生。 第三代钙离子通道调节剂，通过提高对中枢神经系统α2δ亚基靶点亲和力，可进而提高疗效和降低不良反应发生率。2款第三代钙离子通道调节剂近年相续获得批准上市： 第一三共开发的Tarlige（Mirogabalin/美洛加巴林）2019年1月首次在日本获批上市用于神经性疼痛治疗。2024年6月在我国获批进口上市用于DPNP（商品名德力静）。 美洛加巴林对钙离子通道α2δ亚基具有较高的亲和力，且其与α2δ-1亚基解离缓慢，与α2δ-2亚基解离快速，该机制可能是其具有较好的镇痛治疗效果和较少不良反应的原因。 海思科开发的思美宁（Crisugabalin/克利加巴林）于2024年5月在我国获批上市用于DPNP，并随后于7月获批PHN，克利加巴林（HSK16149 ）抑制[ 3H ]加巴喷丁与α2δ的结合亚单位与美洛加巴林相当，作用比普瑞巴林强23倍。克利加巴林是全球首个无需滴定的第三代中枢神经系统钙离子通道调节剂，也是国内首个获批DPNP适应症的药物。 随着第三代钙离子通道调节剂在国内获批上市，我国DPNP临床治疗也正在迎来新格局。 2024年5月，我国发布的《国家基层糖尿病神经病变诊治指南（2024版）》就建议，对于DPNP，普瑞巴林或度洛西汀可作为首选，加巴喷丁、美洛加巴林、克利加巴林也可作为一种有效的初始治疗药物。 衔接蛋白2相关激酶1（AAK1）是丝氨酸/苏氨酸激酶Ark1/Prk1家族成员，在调节受体内吞作用中发挥作用。 AAK1被确定为治疗神经性疼痛的潜在治疗靶点是基于2016年的一项研究结果：AAK1基因敲除（KO）小鼠对小鼠福尔马林模型的急性疼痛期（I期）反应正常，但对持续疼痛期（II期）反应减弱。AAK1基因敲除小鼠在脊神经结扎（SNL）手术后也没有出现触觉异常性疼痛。 AAK1抑制剂治疗神经性疼痛的机制（行为和电生理学）与α2肾上腺素能信号传导有关，α2肾上腺素能信号传导是人类已知的抗伤害性通路。 Lexicon与百时美施贵宝（BMS）合作开发的AAK1抑制剂LX9211（BMS-986176）具有治疗DPNP、PHN和神经性疼痛潜力。 2023年6月，LX9211治疗DPNP的疗效和安全性IIa期概念验证研究（RELIEF-DPN1）结果发表在《糖尿病护理》杂志：对于中度至重度DPNP患者，低剂量LX9211治疗6周后，与安慰剂相比，达到了主要疗效终点。虽然高剂量LX9211的结果也表明疼痛在数值上有所减轻，但并未达到预先规定的显著性水平，这可能是因为高剂量组TEAE发生率较高，导致治疗中断有关。尽管两种剂量的LX9211发生TEAE的几率都高于安慰剂，但低剂量LX9211组总体上耐受性良好。 尽管II期概念验证研究存在治疗时间相对较短和仅在美国招募参与者限制，但主要疗效终点得到满足，支持将AAK1转化为治疗神经病理性疼痛的新型治疗靶点，如在动物模型中观察到的，使用AAKI抑制剂LX9211可缓解神经病理性疼痛。 基于概念验证研究结果而正在开展的剂量范围探索IIb期PROGRESS试验预计于2025年第二季度公布结果。与此同时，Lexicon与百时美施贵宝也正在筹划LX9211治疗DPN推进到Ⅲ期临床试验。 LX9211的IIa期概念验证研究成功开始引起国内多家公司fast-follow布局，包括海思科、人福、扬子江药业旗下的上海海雁等。 海思科开发的HSK36357用于周围神经病理性疼痛I期试验于今年5月结束，上海海雁的YZJ-1495盐酸盐胶囊正在进行神经病理性疼痛I期试验。尽管尚未公布研发项目信息，推测可能是AAK1抑制剂。 2022年1月，Biohaven公司（该公司已于2022年10月被辉瑞收购）与比利时天主教鲁汶大学（KU Leuven）药物设计和发现中心（CD3）与离子通道研究实验室（LICR）宣布，签署独家全球许可和研究协议，开发和商业化first-in-class的TRPM3拮抗剂，以解决全球越来越多的慢性疼痛患者问题。BHV-2100是基于天主教鲁汶大学研究平台开发的一种口服小分子TRPM3拮抗剂。 TRPM3是天主教鲁汶大学LICR发现的治疗疼痛的新靶点。 TRPM3是一种参与疼痛信号传导的Ca2+通透性非选择性阳离子通道，在背根神经节（DRG）和三叉神经节的痛觉神经元中高度表达，在疼痛感知中起关键作用，可能是内源性疼痛缓解途径的下游靶点。 动物实验数据表明TRPM3在神经性疼痛的自发性疼痛和热痛觉过敏中发挥作用，而且位于脊髓、中枢突起或DRG神经元细胞体中的TRPM3在调节热敏感性方面也发挥着重要作用。 与TRPM3在疼痛中的作用一致，天主教鲁汶大学的研究数据表明，BHV-2100可以减轻动物模型中的疼痛行为，而不会产生其他疼痛疗法和机制所见的严重不良反应。 2024年5月，Biohaven在公司2024年投资者研发日活动介绍了已完成的BHV-2100的I期研究药代动力学和安全性数据。结果表明，该药物吸收迅速，20分钟内即可达到治疗浓度。单剂量高达500mg时，耐受性良好，超过了预期的治疗剂量，远高于EC90浓度。这些发现为BHV-2100进入临床试验提供了有力的证据支持，可用于治疗急性偏头痛和疼痛，是一种对中枢神经系统副作用非常小的非阿片类药物疗法。 Biohaven计划于2024年下半年启动偏头痛急性治疗的II期研究和疼痛的概念验证研究（POC）。Biohaven也在筹备提交BHV-2100用于慢性疼痛IND 计划。 在国内，深圳晶蛋生物医药已开始进行TRPM3靶点的抗体专利布局。 热休克蛋白90（HSP90）是一种普遍存在的信号转导调节剂，Hsp90抑制剂作为癌症治疗药物已获得临床成功（全球首款HSP90抑制剂Jeselhy已于2022年在日本获批上市用于治疗癌症化疗后进展的胃肠道间质瘤）。 然而，Reata Pharmaceuticals公司（该公司已于2023年9月被渤健收购）尝试把Hsp90抑制剂推进到疼痛领域。 Reata Pharmaceuticals开发（从堪萨斯大学获得授权）的Cemdomespib（RTA901）是一种高效、选择性口服小分子Hsp90 C端调节剂。Cemdomespib可与Hsp90的C端结合，从而增加细胞保护基因和分子伴侣基因（包括Hsp70）的转录和 Hsp70蛋白的表达。调节HSP90和诱导HSP70有可能减轻糖尿病神经痛。 在过去十年中，大量研究证据表明，通过诱导Hsp70可改善糖尿病周围神经病变和快速发作的脱髓鞘性神经病变。Cemdomespib是一种进入临床研究的第二代新型药物，在人体研究中表现出了良好的药代动力学和安全性。Cemdomespib具有改善病因与蛋白聚集无关的周围神经病方面的疗效。 Cemdomespib对DNDP患者的安全性和有效性的II期研究目前正在研究中。 内容来源于网络，如有侵权，请联系删除。