FDA, U.S. Food and Drug Administration

FDA,美国食品和药物管理局
  • 文章类型: Journal Article
    未经批准:曲妥珠单抗可改善HER2过表达恶性肿瘤患者的预后,但与左心室射血分数降低相关。其他抗HER2疗法的心力衰竭(HF)风险尚不清楚。
    UNASSIGNED:使用世界卫生组织的药物警戒数据,作者比较了不同抗HER2方案的HF几率.
    未经评估:在VigiBase中,41,976例患者使用抗HER2单克隆抗体(曲妥珠单抗,n=16,900;帕妥珠单抗,n=1,856),抗体-药物缀合物(曲妥珠单抗emtansine[T-DM1],n=3,983;曲妥珠单抗地克替康,n=947),和酪氨酸激酶抑制剂(阿法替尼,n=10,424;拉帕替尼,n=5,704;neratinib,n=1,507;图卡替尼,n=655);此外,36,052例患者使用以抗HER2为基础的联合治疗方案出现ADR。大多数患者患有乳腺癌(单一疗法,n=17,281;组合,n=24,095)。结果包括相对于曲妥珠单抗,每种单一疗法的HF几率比较,在每个治疗类别中,在组合方案中。
    未经批准:16,900名曲妥珠单抗相关不良反应患者,2,034(12.04%)有HF报告(中位发病时间5.67个月;IQR:2.85-9.32个月),而抗体-药物缀合物则为1%至2%。在总体队列(报告OR[ROR]:17.37;99%CI:14.30-21.10)和乳腺癌亚组(ROR:17.10;99%CI:13.12-22.27)中,曲妥珠单抗相对于其他抗HER2治疗有更高的HF报告几率。帕妥珠单抗/T-DM1的HF报告几率是T-DM1单药治疗的3.4倍;图卡替尼/曲妥珠单抗/卡培他滨的几率与图卡替尼相似。在转移性乳腺癌治疗方案中,曲妥珠单抗/帕妥珠单抗/多西他赛的HF几率最高(ROR:1.42;99%CI:1.17-1.72),拉帕替尼/卡培他滨的HF几率最低(ROR:0.09;99%CI:0.04-0.23)。
    未经批准:曲妥珠单抗和帕妥珠单抗/T-DM1比其他抗HER2疗法具有更高的HF报告几率。这些数据提供了大规模,关于哪些HER2靶向方案将受益于左心室射血分数监测的真实世界洞察.
    UNASSIGNED: Trastuzumab improves outcomes in patients with HER2-overexpressing malignancies but is associated with decreases in left ventricular ejection fraction. Heart failure (HF) risks from other anti-HER2 therapies are less clear.
    UNASSIGNED: Using World Health Organization pharmacovigilance data, the authors compared HF odds across anti-HER2 regimens.
    UNASSIGNED: In VigiBase, 41,976 patients had adverse drug reactions (ADRs) with anti-HER2 monoclonal antibodies (trastuzumab, n = 16,900; pertuzumab, n = 1,856), antibody-drug conjugates (trastuzumab emtansine [T-DM1], n = 3,983; trastuzumab deruxtecan, n = 947), and tyrosine kinase inhibitors (afatinib, n = 10,424; lapatinib, n = 5,704; neratinib, n = 1,507; tucatinib, n = 655); additionally, 36,052 patients had ADRs with anti-HER2-based combination regimens. Most patients had breast cancer (monotherapies, n = 17,281; combinations, n = 24,095). Outcomes included comparison of HF odds with each monotherapy relative to trastuzumab, within each therapeutic class, and among combination regimens.
    UNASSIGNED: Of 16,900 patients with trastuzumab-associated ADRs, 2,034 (12.04%) had HF reports (median time to onset 5.67 months; IQR: 2.85-9.32 months) compared with 1% to 2% with antibody-drug conjugates. Trastuzumab had higher odds of HF reporting relative to other anti-HER2 therapies collectively in the overall cohort (reporting OR [ROR]: 17.37; 99% CI: 14.30-21.10) and breast cancer subgroup (ROR: 17.10; 99% CI: 13.12-22.27). Pertuzumab/T-DM1 had 3.4 times higher odds of HF reporting than T-DM1 monotherapy; tucatinib/trastuzumab/capecitabine had similar odds as tucatinib. Among metastatic breast cancer regimens, HF odds were highest with trastuzumab/pertuzumab/docetaxel (ROR: 1.42; 99% CI: 1.17-1.72) and lowest with lapatinib/capecitabine (ROR: 0.09; 99% CI: 0.04-0.23).
    UNASSIGNED: Trastuzumab and pertuzumab/T-DM1 had higher odds of HF reporting than other anti-HER2 therapies. These data provide large-scale, real-world insight into which HER2-targeted regimens would benefit from left ventricular ejection fraction monitoring.
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  • 文章类型: Journal Article
    本文在最近的临床试验的背景下,提供了关于脑啡肽抑制在心力衰竭(HF)中的作用的当代综述和新观点,并解决了某些HF患者人群的潜在机制和未解决的问题。Neprilysin是一种内肽酶,可切割多种肽,例如利钠肽,缓激肽,肾上腺髓质素,P物质,血管紧张素I和II,和内皮素。它对心血管有广泛的作用,肾,肺,胃肠,内分泌,和神经功能。已经开发了联合的血管紧张素受体和脑啡肽抑制剂(ARNi),旨在增加血管舒张利钠肽并防止血管紧张素系统的反调节激活。ARNi治疗对于降低HF和纽约心脏协会功能II至III类症状患者的死亡和住院风险非常有效。但与血管紧张素转换酶抑制剂或血管紧张素受体阻滞剂相比,研究未能显示ARNi在射血分数降低的晚期HF患者或伴有左心室功能障碍但无HF的心肌梗死患者中的任何益处.这些提出了以下问题:当存在对利钠肽的反应的下游钝化时,利钠肽的酶促分解在晚期HF患者中或在不存在HF的心肌梗死后患者中是否可能不是非常有效的解决方案需要增加利钠肽的可用性。此外,需要进一步的研究来确定ARNi对蛋白尿的长期影响,肥胖,血糖控制和血脂,血压,HF患者的认知功能。
    This article provides a contemporary review and a new perspective on the role of neprilysin inhibition in heart failure (HF) in the context of recent clinical trials and addresses potential mechanisms and unanswered questions in certain HF patient populations. Neprilysin is an endopeptidase that cleaves a variety of peptides such as natriuretic peptides, bradykinin, adrenomedullin, substance P, angiotensin I and II, and endothelin. It has a broad role in cardiovascular, renal, pulmonary, gastrointestinal, endocrine, and neurologic functions. The combined angiotensin receptor and neprilysin inhibitor (ARNi) has been developed with an intent to increase vasodilatory natriuretic peptides and prevent counterregulatory activation of the angiotensin system. ARNi therapy is very effective in reducing the risks of death and hospitalization for HF in patients with HF and New York Heart Association functional class II to III symptoms, but studies failed to show any benefits with ARNi when compared with angiotensin-converting enzyme inhibitors or angiotensin receptor blocker in patients with advanced HF with reduced ejection fraction or in patients following myocardial infarction with left ventricular dysfunction but without HF. These raise the questions about whether the enzymatic breakdown of natriuretic peptides may not be a very effective solution in advanced HF patients when there is downstream blunting of the response to natriuretic peptides or among post-myocardial infarction patients in the absence of HF when there may not be a need for increased natriuretic peptide availability. Furthermore, there is a need for additional studies to determine the long-term effects of ARNi on albuminuria, obesity, glycemic control and lipid profile, blood pressure, and cognitive function in patients with HF.
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  • 文章类型: Journal Article
    粉末滴落式3D打印能够生产高度药物负载的固体口服剂型。然而,这种技术主要限于溶解性好的药物。大多数管道化合物溶解性差,虽然,并且需要增强溶解度,例如,通过形成无定形固体分散体。这项研究提出了一种详细而系统的开发方法,用于生产含有大量难溶性片剂的片剂,通过滴上粉末3D打印(也称为粘合剂喷射)使药物无定形化。使用模型化合物酮康唑和共聚维酮的示例性系统作为基质聚合物,以20%和40%的载药量通过热熔挤出实现化合物的非晶化。将磨碎的挤出物用作印刷粉末,并在节省材料的小规模筛选中研究了油墨和不同的油墨与粉末比对酮康唑重结晶的影响。使用差示扫描量热法和偏振光显微镜进行结晶度评估以鉴定甚至小的结晶度痕迹。片剂的印刷表明,进行的小规模筛选能够通过粉末滴落式印刷来识别用于开发无定形和机械稳定的片剂的印刷参数。稳定性研究证明了在加速储存条件下在12周内物理稳定的片剂。
    Drop-on-powder 3D printing is able to produce highly drug loaded solid oral dosage forms. However, this technique is mainly limited to well soluble drugs. The majority of pipeline compounds is poorly soluble, though, and requires solubility enhancement, e.g., via formation of amorphous solid dispersions. This study presents a detailed and systematic development approach for the production of tablets containing high amounts of a poorly soluble, amorphized drug via drop-on-powder 3D printing (also known as binder jetting). Amorphization of the compound was achieved via hot-melt extrusion using the exemplary system of the model compound ketoconazole and copovidone as matrix polymer at drug loadings of 20% and 40%. The milled extrudate was used as powder for printing and the influence of inks and different ink-to-powder ratios on recrystallization of ketoconazole was investigated in a material-saving small-scale screening. Crystallinity assessment was performed using differential scanning calorimetry and polarized light microscopy to identify even small traces of crystallinity. Printing of tablets showed that the performed small-scale screening was capable to identify printing parameters for the development of amorphous and mechanically stable tablets via drop-on-powder printing. A stability study demonstrated physically stable tablets over twelve weeks at accelerated storage conditions.
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  • 文章类型: Journal Article
    Friedreich共济失调(FRDA)是一种常染色体隐性疾病,其中线粒体蛋白,Frataxin,其表达严重下降。除了进行性共济失调,FRDA患者通常会发展为肥厚性心肌病。这种心肌病与肌节肥厚型心肌病不同,因为肥大与心肌细胞内线粒体的大量增殖有关,而不是与收缩蛋白的过度表达有关。这与房性心律失常有关,凋亡,随着时间的推移和纤维化,患者往往会出现心力衰竭导致过早死亡。这种线粒体心肌病与更常见的收缩蛋白肥厚型心肌病之间的差异可能是这些患者管理中的误解来源。尽管影像学研究已经揭示了这种疾病中心脏的结构和功能,我们仍然缺乏对决定FRDA中心脏结局的许多重要临床和基本分子事件的了解.这篇综述将描述目前对FRDA心脏的基本和临床理解,最重要的是,确定我们知识中的主要差距,这些差距代表了新的研究方向和机会。
    Friedreich Ataxia (FRDA) is an autosomal recessive disease in which a mitochondrial protein, frataxin, is severely decreased in its expression. In addition to progressive ataxia, patients with FRDA often develop a cardiomyopathy that can be hypertrophic. This cardiomyopathy is unlike the sarcomeric hypertrophic cardiomyopathies in that the hypertrophy is associated with massive mitochondrial proliferation within the cardiomyocyte rather than contractile protein overexpression. This is associated with atrial arrhythmias, apoptosis, and fibrosis over time, and patients often develop heart failure leading to premature death. The differences between this mitochondrial cardiomyopathy and the more common contractile protein hypertrophic cardiomyopathies can be a source of misunderstanding in the management of these patients. Although imaging studies have revealed much about the structure and function of the heart in this disease, we still lack an understanding of many important clinical and fundamental molecular events that determine outcome of the heart in FRDA. This review will describe the current basic and clinical understanding of the FRDA heart, and most importantly, identify major gaps in our knowledge that represent new directions and opportunities for research.
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  • 文章类型: Journal Article
    避免免疫破坏被认为是癌症发展的标志之一。尽管在50多年前首次被预测为一种潜在的抗肿瘤治疗方式,癌症免疫疗法的广泛临床应用直到最近才成为现实.癌症免疫疗法通过重新激活停滞的预先存在的免疫反应或通过引发从头免疫反应来发挥作用。它的工具包包括抗体,疫苗,细胞因子,和基于细胞的疗法。在过去的10到15年里,一些恶性肿瘤的治疗模式已经完全改变。临床前开发的巨大努力导致了大量临床试验,测试创新的治疗方法作为单一疗法,越来越多,在组合。在这里,我们提供了已批准和新兴的抗肿瘤免疫疗法的概述,重点关注治疗方法的丰富景观,而不是那些阻断规范PD-1/PD-L1和CTLA-4轴的方法,并将它们置于对肿瘤免疫学的最新理解的背景下。
    Avoidance of immune destruction is recognized as one of the hallmarks of cancer development. Although first predicted as a potential antitumor treatment modality more than 50 years ago, the widespread clinical use of cancer immunotherapies has only recently become a reality. Cancer immunotherapy works by reactivation of a stalled pre-existing immune response or by eliciting a de novo immune response, and its toolkit comprises antibodies, vaccines, cytokines, and cell-based therapies. The treatment paradigm in some malignancies has completely changed over the past 10 to 15 years. Massive efforts in preclinical development have led to a surge of clinical trials testing innovative therapeutic approaches as monotherapy and, increasingly, in combination. Here we provide an overview of approved and emerging antitumor immune therapies, focusing on the rich landscape of therapeutic approaches beyond those that block the canonical PD-1/PD-L1 and CTLA-4 axes and placing them in the context of the latest understanding of tumor immunology.
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  • 文章类型: Journal Article
    蛋白质通道在将小分子转运到酶的活性位点中是必需的。隧道的几何和物理化学性质影响运输过程。隧道是蛋白质工程和药物开发的有吸引力的热点。然而,使用实验技术研究配体结合和解结合是具有挑战性的,虽然计算机模拟方法有其局限性,特别是在资源要求高的虚拟筛选管道的情况下。CaverWeb1.2是Web服务器的新版本,将蛋白质隧道的检测功能与配体轨迹的计算相结合。CaverWeb服务器的新版本进行了扩展,能够从集成的小分子数据库中获取新的配体,并且具有全自动的虚拟筛选管道,可以快速评估预定义的4,300多种目前已批准的药物。虚拟筛选管道配有全面的用户界面,使其成为更广泛的公司和学术用户社区的可行服务。Web服务器可在https://loschmidt免费用于学术用途。Chemi.Muni.cz/洞穴网。
    Protein tunnels are essential in transporting small molecules into the active sites of enzymes. Tunnels\' geometrical and physico-chemical properties influence the transport process. The tunnels are attractive hot spots for protein engineering and drug development. However, studying the ligand binding and unbinding using experimental techniques is challenging, while in silico methods come with their limitations, especially in the case of resource-demanding virtual screening pipelines. Caver Web 1.2 is a new version of the web server combining the capabilities for the detection of protein tunnels with the calculation of the ligand trajectories. The new version of the Caver Web server was expanded with the ability to fetch novel ligands from the Integrated Database of Small Molecules and with the fully automated virtual screening pipeline allowing for the fast evaluation of the predefined set of over 4,300 currently approved drugs. The virtual screening pipeline is accompanied by a comprehensive user interface, making it a viable service for the broader spectrum of companies and the academic user community. The web server is freely available for academic use at https://loschmidt.chemi.muni.cz/caverweb.
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  • 文章类型: Journal Article
    甲状腺癌,作为最常见的内分泌癌症之一,近年来发病率激增。这很可能是由于其传统诊断方式缺乏特异性和准确性,导致甲状腺结节的过度诊断。虽然有几种治疗选择,它们仅限于手术和131I放射治疗,这些治疗具有显著的副作用,因此不能满足恶性程度非常高的未分化甲状腺癌的治疗需求.利用光吸收的光学成像,折射和散射特性,不仅观察细胞的结构和功能,组织,器官,甚至整个有机体来协助诊断,但也可用于进行光学治疗,以实现甲状腺癌的靶向非侵入性和精确治疗。这些筛选的应用,诊断,和治疗,赋予光学成像在甲状腺癌手术导航领域的潜力。在过去的十年里,光学成像在甲状腺癌诊断和治疗中的研究逐年增长,但是没有发表关于这个主题的全面评论。这里,我们回顾了光学成像在甲状腺癌诊断和治疗中应用的关键进展,并讨论了该技术在临床应用中的挑战和潜力。
    Thyroid cancer, as one of the most common endocrine cancers, has seen a surge in incidence in recent years. This is most likely due to the lack of specificity and accuracy of its traditional diagnostic modalities, leading to the overdiagnosis of thyroid nodules. Although there are several treatment options available, they are limited to surgery and 131I radiation therapy that come with significant side effects and hence cannot meet the treatment needs of anaplastic thyroid carcinoma with very high malignancy. Optical imaging that utilizes optical absorption, refraction and scattering properties, not only observes the structure and function of cells, tissues, organs, or even the whole organism to assist in diagnosis, but can also be used to perform optical therapy to achieve targeted non-invasive and precise treatment of thyroid cancer. These applications of screening, diagnosis, and treatment, lend to optical imaging\'s promising potential within the realm of thyroid cancer surgical navigation. Over the past decade, research on optical imaging in the diagnosis and treatment of thyroid cancer has been growing year by year, but no comprehensive review on this topic has been published. Here, we review key advances in the application of optical imaging in the diagnosis and treatment of thyroid cancer and discuss the challenges and potential for clinical translation of this technology.
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  • 文章类型: Case Reports
    机械循环支持装置用于为心源性休克患者提供短期支持。然而,这些设备并非没有并发症,必须密切考虑每个人的风险和管理。我们讨论了经皮右心泵的罕见并发症,并回顾了向美国食品和药物管理局报告的并发症。(难度等级:中级。).
    Mechanical circulatory support devices are used to offer short-term support for patients with cardiogenic shock. However, these devices are not without complications, and the risk and management of each must be closely considered. We discuss an infrequent complication of the percutaneous right heart pump and review complications reported to the U.S. Food and Drug Administration. (Level of Difficulty: Intermediate.).
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  • 文章类型: Journal Article
    长期暴露(PE)疗法是最有效的,创伤后应激障碍(PTSD)的循证治疗。PE的关键组成部分涉及体内暴露(IVE),在此期间,患者接近“现实生活”中安全但避免的情况或活动,因为它们引起恐惧反应。尽管它们在治疗中起着关键作用,很少有研究集中在IVE上。这种知识上的差距主要是由于以下事实:IVE通常由患者在治疗期间进行。让临床医生依赖患者自我报告。这种方法有许多缺点,当前的研究通过利用技术来开发一种创新的设备来解决这个问题,生物标志物驱动,治疗师指导的IVE。新系统使临床医生能够在IVE期间虚拟陪伴患者,并提供实时生理(心率,皮肤电导)和自我报告(痛苦的主观单位)数据,临床医生可以使用这些数据来修改暴露量并优化治疗价值。此小型企业创新研究(SBIR)第一阶段项目旨在:(1)将生理传感器和实时音频/视频流集成到临床医生在IVE期间指导患者的系统中;(2)确定该系统的可行性和可接受性;(3)在患有PTSD(N=40)的退伍军人中进行一项试点随机临床试验,以评估该系统在减轻PE期间PTSD症状方面的初步功效。本文描述了理论基础,设计,和第一阶段项目的方法论。这项研究的发现有可能创新临床实践,推进暴露疗法的科学,改善临床结果。
    Prolonged Exposure (PE) therapy is one of the most efficacious, evidence-based treatments for posttraumatic stress disorder (PTSD). A key component of PE involves in vivo exposures (IVEs) during which patients approach situations or activities in \"real life\" that are safe but avoided because they elicit a fear response. Despite their critical role in treatment, little research has focused on IVEs. This gap in knowledge is primarily due to the fact that IVEs are typically conducted by patients in between therapy sessions, leaving clinicians reliant upon patient self-report. This approach has numerous shortcomings, which the current study addresses by leveraging technology to develop an innovative device that allows for physiological, biomarker-driven, therapist-guided IVEs. The new system enables clinicians to virtually accompany patients during IVEs and provides real-time physiological (heart rate, skin conductance) and self-report (subjective units of distress) data that clinicians can use to modify the exposure and optimize therapeutic value. This Small Business Innovation Research (SBIR) Phase I project aims to: (1) integrate physiological sensors and live audio/visual streaming into a system for clinicians to guide patients during IVEs; (2) determine feasibility and acceptability of the system; and (3) conduct a pilot randomized clinical trial among veterans with PTSD (N = 40) to evaluate the preliminary efficacy of the system in reducing PTSD symptoms during PE. This paper describes the rationale, design, and methodology of the Phase I project. The findings from this study have the potential to innovate clinical practice, advance the science of exposure therapy, and improve clinical outcomes.
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  • 文章类型: Journal Article
    分子靶向治疗已成为癌症治疗中一种新兴的有前景的策略。并且筛选靶向癌细胞特异性靶标的试剂对于癌症治疗是非常期望的。我们先前的研究首次发现,源自谷草麸皮的III类分泌过氧化物酶(FMBP)在体内和体外表现出优异的靶向抗大肠癌(CRC)活性,而其潜在目标仍不清楚。本研究的重点是发现在CRC上异常定位的细胞表面葡萄糖调节蛋白78(csGRP78)与FMBP的抗CRC作用正相关。表明它是FMBP对抗CRC的潜在靶标。Further,我们证明了FMBP与csGRP78的核苷酸结合域(NBD)的组合干扰了CRC细胞中信号转导和转录激活因子3(STAT3)的下游激活,从而促进细胞内活性氧(ROS)的积累和细胞生长抑制。这些现象在裸鼠肿瘤模型中得到进一步证实。总的来说,我们的研究强调了csGRP78作为FMBP对抗CRC的潜在靶标,揭示FMBP作为未来CRC靶向药物的临床潜力。
    Molecular targeted therapy has become an emerging promising strategy in cancer treatment, and screening the agents targeting at cancer cell specific targets is very desirable for cancer treatment. Our previous study firstly found that a secretory peroxidase of class III derived from foxtail millet bran (FMBP) exhibited excellent targeting anti-colorectal cancer (CRC) activity in vivo and in vitro, whereas its underlying target remains unclear. The highlight of present study focuses on the finding that cell surface glucose-regulated protein 78 (csGRP78) abnormally located on CRC is positively correlated with the anti-CRC effects of FMBP, indicating it serves as a potential target of FMBP against CRC. Further, we demonstrated that the combination of FMBP with the nucleotide binding domain (NBD) of csGRP78 interfered with the downstream activation of signal transducer and activator of transcription 3 (STAT3) in CRC cells, thus promoting the intracellular accumulation of reactive oxygen species (ROS) and cell grown inhibition. These phenomena were further confirmed in nude mice tumor model. Collectively, our study highlights csGRP78 acts as an underlying target of FMBP against CRC, uncovering the clinical potential of FMBP as a targeted agent for CRC in the future.
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