Engineered Biotherapeutic Agent for Treatment of Post-Traumatic Osteoarthritis

用于治疗创伤后骨关节炎的工程生物治疗剂

基本信息

  • 批准号:
    10821518
  • 负责人:
  • 金额:
    $ 13.73万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2023
  • 资助国家:
    美国
  • 起止时间:
    2023-09-25 至 2025-08-31
  • 项目状态:
    未结题

项目摘要

PROJECT SUMMARY/ABSTRACT Post-traumatic osteoarthritis (PTOA) is a degenerative disease of cartilage brought on by traumatic injury to the articular joints. Acute joint injury is followed by severe joint pain and inflammation. This results in much more rapid degeneration of cartilage than in other forms of osteoarthritis, due to the joint instability caused by trauma as well as the increase in proinflammatory cytokines that accelerate degeneration. PTOA affects 5.6 million Americans, with an estimated $11.79 billion associated with direct treatment costs for its treatment. There are no approved treatments that stop or alter the progression of the disease, and complete degeneration of the articular cartilage can necessitate joint replacement surgery. This may require surgical revision in approximately 10 years, a particularly undesirable outcome in younger patients with longer life expectancies. ProViZiGen has developed a novel protein-engineered injectable therapeutic hydrogel system, HydroGEN that forms a gel when injected into the joint space and provides sustained delivery of an anti-inflammatory and chondroprotective therapeutic molecule. Our recent preclinical investigation in a rabbit anterior cruciate ligament (ACL) transection model has shown that immediate delivery of HydroGEN significantly prevents the development of PTOA after joint injury and delivery 8 weeks after the point of injury has therapeutic effects promoting endogenous cartilage repair. In this Phase I STTR, we aim to determine stability and lack of toxicity of HydroGEN to establish functional gelation and establish safe dosing. In Aim I, we will determine the stability and mechanics of HydroGEN by assessing the protein’s microstructure and macrostructure, as well as its rheologic properties as a function of temperature and time to determine its functionality as an in situ gelling injectable therapeutic. In Aim II, we will establish the lack of toxicity and selective biodistribution of HydroGEN in a rat model of intraarticular injection. Successful completion of these aims will prepare ProViZiGen for filing a BLA with the FDA, with large animal PTOA model investigation (Phase II) leading to first in human trials.
项目总结/摘要 创伤后骨关节炎(PTOA)是一种由创伤性损伤引起的软骨退行性疾病, 关节急性关节损伤之后是严重的关节疼痛和炎症。这导致许多 软骨退化比其他形式的骨关节炎更快,这是由于关节不稳定引起的, 创伤以及促炎细胞因子的增加加速了退化。PTOA影响5.6 据估计,117.9亿美元与其治疗的直接治疗费用有关。 目前还没有批准的治疗方法可以阻止或改变疾病的进展, 关节软骨的损伤可能需要进行关节置换手术。这可能需要手术翻修, 大约10年,这在预期寿命较长的年轻患者中是特别不希望的结果。 ProViZiGen开发了一种新的蛋白质工程化可注射治疗水凝胶系统HydroGEN, 当注射到关节间隙中时形成凝胶并提供抗炎剂的持续递送, 软骨保护治疗分子。我们最近在兔前交叉韧带中进行的临床前研究 韧带(ACL)横断模型显示,立即输送氢可显著防止 关节损伤后PTOA的发展和损伤点后8周分娩具有治疗作用 促进内源性软骨修复。在本I期STTR中,我们的目标是确定稳定性和无毒性 以建立功能性凝胶化并建立安全剂量。在目标I中,我们将确定 通过评估蛋白质的微观结构和宏观结构,以及其 作为温度和时间的函数的流变性能,以确定其作为原位胶凝的功能 注射治疗剂。在目标II中,我们将确定氢的毒性和选择性生物分布的缺乏 在大鼠关节内注射模型中。成功完成这些目标将使ProViZiGen准备提交一份 BLA与FDA合作,大型动物PTOA模型研究(II期)导致首次人体试验。

项目成果

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