Clinical Evaluation of T3D-959 as a Potential Disease Remedial Therapeutic for the Treatment of Alzheimer's Disease

T3D-959 作为治疗阿尔茨海默病的潜在疾病治疗药物的临床评价

• 批准号: 9034522
• 负责人: SUZANNE M. DE LA MONTE
• 金额: $ 68.69万
• 依托单位: T3D THERAPEUTICS, INC.
• 依托单位国家: 美国
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-03-15 至 2017-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/9034522
• 关键词: Agonist; Alzheimer' s Disease; American; Amyloid; Biological Markers; Brain; Brain region; CD3D gene; Cerebrum; Clinical; Clinical Data; Clinical Research; Clinical Trials; Cognition; Cognitive; Controlled Study; Data; Defect; Diabetes Mellitus; Disease; Dose; Drug Kinetics; Enrollment; Evaluation; Functional Magnetic Resonance Imaging; Functional disorder; Future; Glucose; Goals; Health; Healthcare Systems; Hippocampus (Brain); Image; Impaired cognition; Insulin Resistance; Investigational Drugs; Marketing; Measures; Memory; Neurons; Non-Insulin-Dependent Diabetes Mellitus; Nuclear Receptors; Pathology; Patients; Pharmaceutical Preparations; Pharmacotherapy; Phase; Positioning Attribute; Positron-Emission Tomography; Protocols documentation; Rattus; Rest; Senile Plaques; Severities; Signal Transduction; Symptoms; Synapses; Testing; Therapeutic; Time; Toxicology; Treatment Protocols; adiponectin; base; cingulate cortex; cohort; design; diabetes mellitus therapy; fluorodeoxyglucose positron emission tomography; functional decline; glucose metabolism; imaging modality; improved; insulin sensitizing drugs; mild cognitive impairment; neuroimaging; novel; phase 1 study; research clinical testing; response; rosiglitazone; screening; small molecule; tau Proteins

DESCRIPTION (provided by applicant): The purpose of the proposed project is to conduct a Phase 2a mechanistic clinical proof of concept study of an investigational drug, T3D-959 which is being developed for the treatment of cognitive and functional decline in Alzheimer's disease patients. T3D-959 has successfully completed Phase I studies, and with data demonstrating robust entry into the brain in a rat pharmacokinetic study. T3D-959 is a novel, orally delivered, small molecule, dual nuclear receptor agonist, formerly targeted as a type 2 diabetes therapy and now being re-positioned as a potential disease-modifying therapy for Alzheimer's disease (AD) and mild cognitive impairment (MCI). The project goal is to test the hypothesis that T3D- 959 can mechanistically act in the brain of AD patients to produce desired changes in glucose metabolism (as measured by FDG-PET) and brain function (as measured by BOLD fMRI). These imaging modalities are currently being utilized as surrogate measures of potential efficacy in treating AD. If T3D- 959 treatment produces desired changes in glucose metabolism and brain function, the drug could have disease remedial potential and this study could provide supportive clinical data that justifies the pursuit of longer term clinical studies of the potentia of T3D-959 to slow, stop or reverse cognitive and functional decline in AD patients. The clinical trial is an adaptive, sequential enrollment design involving 24-36 mild-to-moderate AD patients dosed orally once-a-day for 2 weeks. The project has 3 key objectives: i. To determine the potential of T3D-959 to improve cerebral glucose metabolism (CMRgl). Low CMRgl is a hallmark of AD and a better predictor of future cognitive impairment than amyloid plaqe or tau bundle load. ii. To determine the potential of T3D-959 to improve memory-related hippocampal functional connectivity (resting state default mode network activity). iii. Determine appropriate doses for future clinical studies (dose range finding). The therapeutic approach to be tested is based on two suppositions; (A) ameliorating multiple pathologies in the disease with a single therapy may provide a superior clinical benefit than therapeutic approaches which target a single pathology (e.g. beta amyloid plaques) and (B) correcting insulin resistance in the brain, (a key driver of AD pathophysiology) may be disease remedial.

描述(申请人提供)：拟议项目的目的是对正在开发的用于治疗阿尔茨海默病患者认知和功能衰退的研究药物T3D-959进行2a阶段机械性临床概念验证研究。T3D-959已成功完成第一阶段研究，数据显示，在大鼠药代动力学研究中，T3D-959强劲进入大脑。T3D-959是一种新型的口服小分子双核受体激动剂，以前用于治疗2型糖尿病，现在被重新定位为治疗阿尔茨海默病(AD)和轻度认知障碍(MCI)的潜在疾病修正疗法。该项目的目标是测试T3D-959可以在AD患者的大脑中机械作用的假设，从而在葡萄糖代谢(如FDG-PET测量)和脑功能(如BOLD功能磁共振测量)方面产生所需的变化。这些成像方式目前被用作治疗AD的潜在疗效的替代措施。如果T3D-959治疗在葡萄糖代谢和脑功能方面产生了预期的变化，该药物可能具有治疗疾病的潜力，这项研究可能提供支持性的临床数据，证明追求T3D-959减缓、停止或逆转AD患者认知和功能衰退的潜力的长期临床研究的合理性。这项临床试验是一项适应性、序贯登记设计，涉及24-36名轻中度AD患者，每天口服一次，持续两周。该项目有3个关键目标：1.确定T3D-959改善脑葡萄糖代谢(CMRg1)的潜力。低CMRgl是AD的一个标志，比淀粉样斑块或tau束负荷更能预测未来的认知损害。二、确定T3D-959改善记忆相关的海马区功能连通性(静息状态默认模式网络活动)的潜力。三、为将来的临床研究确定合适的剂量(剂量范围确定)。要测试的治疗方法基于两个假设；(A)用单一疗法改善疾病的多种病理可能提供比针对单一病理(例如，β淀粉样斑块)的治疗方法更好的临床益处，以及(B)纠正大脑中的胰岛素抵抗，(A) AD病理生理学的关键驱动因素)可能是疾病治疗。