PHASE IIA CLINICAL BIOMARKER TRIAL OF ASPIRIN AND ARGININE RESTRICTION IN COLON

这个子项目是许多研究子项目中的一个 由NIH/NCRR资助的中心赠款提供的资源。子项目和 研究者（PI）可能从另一个NIH来源获得了主要资金， 因此可以在其他CRISP条目中表示。所列机构为 研究中心，而研究中心不一定是研究者所在的机构。 本研究的目的是了解口服阿司匹林每日服用与限制饮食对某些结直肠癌生物标志物治疗结肠癌患者的影响。 结肠癌患者在未来复发和发展为继发性结直肠癌的风险很高。 可以测量体内称为生物标志物的特定化学物质（多胺，三尖杉酯碱），以帮助了解一个人患结直肠癌的风险。 与结直肠癌相关的特定生物标志物已在先前的实验室研究中确定。 通过在研究干预前后测量这些预定义的生物标志物，我们可以评估它们如何受到干预的影响，并了解它们在临床试验中对结肠癌患者的有用性。 本研究是一项IIa期临床生物标志物研究，使用每日口服阿司匹林325 mg，并采用限制精氨酸的饮食，旨在在12周研究期间将精氨酸摄入量减少至少30%。将通过进行内窥镜检查（用于观察肠、直肠和结肠内部的程序）和活检（采集组织样本）、放血（抽血）和尿液采集从患者体内获得生物标志物。 进行活检以评估可能与结肠癌形成的早期事件有关的组织内容物的变化。这是最初用于诊断您的病情的程序。 将有24例患者入组本研究，该研究通过加州尔湾大学医学中心进行。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The purpose of this research study is to understand the effects of oral aspirin taken daily with an arginine-restricted diet on certain colorectal cancer biomarkers in treated colon cancer patients. Patients with colon cancer are at high risk for recurrence and for development of secondary colorectal cancers in the future. Specific chemicals (polyamines, prostaglandins) in the body referred to as biomarkers can be measured to help understand a person s risk for developing colorectal cancer. Specific biomarkers associated with colorectal cancer have been identified in prior laboratory studies. By measuring these predefined biomarkers before and after the study intervention, we can assess how they are affected by the intervention, and gain knowledge about their usefulness in colon cancer patients on clinical trial. This study is a Phase IIa clinical biomarker study, using oral aspirin 325 mg taken daily with an arginine-restricted diet designed to reduce arginine intake by at least 30% during the 12-week study period. The biomarkers will be obtained from patient by performing endoscopy (a procedure used to look at the inside of the bowel, rectum and colon) and biopsy (taking samples of tissue), phlebotomy (drawing blood), and urine collection. Biopsies are done to evaluate changes in tissue content that may relate to early events in colon cancer formation. This was the procedure used to diagnose your condition initially. There will be 24 patients enrolled into this study performed through University of California Irvine Medical Center.