Peripherally Acting Analgesic for Osteoarthritis Pain

用于治疗骨关节炎疼痛的外周镇痛药

基本信息

批准号：
10249564
负责人：
RIDONG CHEN
金额：
$ 25.96万
依托单位：
APT THERAPEUTICS, INC.
依托单位国家：
美国
项目类别：
财政年份：
2021
资助国家：
美国
起止时间：
2021-06-05 至 2023-05-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/10249564
关键词：
Absence of pain sensation Acetaminophen Acetates Adverse effects Affect Afferent Neurons Age-Years Aldesleukin American Analgesics Animal Model Apnea Arthralgia Attenuated Autoimmune Binding Binding Sites Biological Assay Blood Vessels Cartilage Cells Cessation of life Chimeric Proteins Chronic Clinical Trials Constipation Data Degenerative polyarthritis Disease Dose Dynorphins Endorphins Escherichia coli Exhibits Goals Half-Life Human IL2RA gene Ibuprofen Immune Impairment Inflammatory Injury Interleukin 2 Receptor Interleukin-2 Intractable Pain Joints Malignant Neoplasms Mammalian Cell Medial meniscus structure Mediating Modeling Molecular Weight Morphine Mutation Neuropathy Neuropeptides No-Observed-Adverse-Effect Level Non-Steroidal Anti-Inflammatory Agents Operative Surgical Procedures Opioid Opioid Receptor Opioid agonist PTGS2 gene Pain Patients Peripheral Pharmaceutical Preparations Phase Plasma Principal Investigator Proteins Quality of life Rattus Receptor Signaling Recombinant Proteins Regulatory T-Lymphocyte Renal clearance function Replacement Arthroplasty Sedation procedure Serum Albumin Solid Neoplasm Streptozocin Structure Surgical Models Symptoms Syndrome T-Cell Activation T-Cell Proliferation Therapeutic Therapeutic Index Tissues Toxicology Tumor Tissue Tylenol United States Work addiction analog articular cartilage base body system celecoxib chronic constriction injury chronic pain clinical efficacy design diabetic rat drug candidate effective therapy effector T cell endogenous opioids gastrointestinal hydrophilicity immunogenicity immunoregulation improved functioning inflammatory pain innovation molecular size neurobehavioral novel opioid epidemic opioid mortality osteoarthritis pain overdose death pain patient pain relief pain symptom painful neuropathy preclinical safety prevent programs protective effect response side effect smoothened signaling pathway subcutaneous targeted treatment type I diabetic

项目摘要

Principal Investigator/Program Director (Last, First, Middle: Ridong Chen Project Summary More than 25 million Americans suffer from chronic pain. In recent decades, due to the lack of other effective treatments, there has been an overreliance on opioids despite their poor ability to improve function. This has been contributing to a significant and alarming epidemic of opioid overdose deaths and addictions. Osteoarthritis (OA) is the most common degenerative joint disease, affecting 34% of people over 65 years of age and nearly 27 million people in the United States. The main symptom of OA patients is pain following a significant loss of the articular cartilage. As there are currently no disease modifying agents, analgesics are the mainstay of treatment but often deliver limited efficacy and can induce serious injury and death. We have designed and optimized a protein-based and long-acting analgesic. The therapy will deliver robust efficacy without causing significant side effects as it preferably targets to inflamed tissues and only activates peripheral  and -opioid receptors on sensory neurons or immune cells. In the proposed studies, we will evaluate the dose-response of the proprietary drug candidate in a well-established rat model of OA pain. We also will determine the potential side effects in the Functional Observational Battery assays in healthy rats, along with a general toxicological screen of major organ systems. The long-term goal is to develop the drug candidate as a safe and effective analgesic therapy. Weekly or bi-weekly dosing will provide sustained pain relief for OA pain patients without addiction and other adverse side effects.

首席研究员/计划主任（最后，第一，中间：Ridong Chen 项目摘要超过2500万美国人患有慢性疼痛。近几十年来，由于缺乏其他有效的治疗方法，尽管阿片类药物提高功能的能力较差，但对阿片类药物的过度依赖。这就是我们为阿片类药物过量死亡和成瘾的大量且令人震惊的流行病做出了贡献。骨关节炎（OA）是最常见的退行性关节疾病，影响了65年以上34％的人在美国，年龄和近2700万人。 OA患者的主要症状是痛苦的关节软骨的重大损失。由于目前没有疾病修饰药，镇痛药是治疗的支柱，但通常会带来有限的效率，并可能造成严重的伤害和死亡。我们设计并优化了基于蛋白质的长效镇痛药。该疗法将提供强大的效果而不会引起明显的副作用，因为它优选地靶向发炎组织，仅激活感官神经元或免疫细胞上的外周和-阿片受体。在拟议的研究中，我们将在OA疼痛的大鼠模型中评估专有药物候选者的剂量反应。我们还将确定健康大鼠功能性观察电池测定的潜在副作用，以及主要器官系统的一般毒理学筛查。长期目标是开发药物候选人是一种安全有效的镇痛疗法。每周或每两周剂量会持续疼痛无成瘾和其他不良副作用的OA疼痛患者缓解。