Clinical Application of CAIX-Targeted PET Imaging in Tumors
报名条件（概要）
- 年龄：18 Years – 75 Years
- 性别：不限
- 健康志愿者：不接受
完整入排标准请以官方页面为准。
开展国家/地区
China
药品与企业信息
68Ga/18F-CAIX-LT-BCH (0.05-0.1 mCi/kg) is intravenously administered, followed immediately by whole-body dynamic imaging using the United Imaging uEXPLORER total-body PET/CT system. If indeterminate lesions are observed on routine imaging, delayed imaging may be performed for further evaluation. The patient is positioned supine and instructed to breathe quietly. The acquired data are reconstructed using the Ordered Subset Expectation Maximization (OSEM) algorithm to generate dynamic PET image frames. Static PET/CT or PET/MRI Protocol: Following intravenous administration of the quality-controlled 68Ga/18F-CAIX-LT-BCH (0.05-0.1 mCi/kg), the patient rests for 50-60 minutes before undergoing whole-body or regional static scanning. The patient is positioned supine and maintains quiet breathing. Image data are reconstructed using the OSEM algorithm to produce dynamic PET image frames.
研发企业
试验官方登记的主要申办方；研究机构申办时会显示相应机构名称。
生产企业
公开药品批准资料或正式说明书暂未提供明确的生产企业信息。
研发企业与生产企业可能不是同一家。研究阶段药品可能尚未公布生产企业；生产企业仅取自美国上市原研药说明书所列企业（不含仿制药），不作推测；仅在其他国家上市的药品暂无法显示。
研究简介（原文）
According to the 2020 global cancer statistics, renal carcinoma ranks as the fourteenth most common malignant tumor worldwide. In 2020, there were 431,288 new cases and 179,368 deaths from renal cancer, and both the incidence and mortality rates are projected to continue rising by 2025. Early non-invasive diagnosis of clear cell renal cell carcinoma (ccRCC) is crucial for improving prognosis. Nuclear medicine molecular imaging offers the advantages of real-time, dynamic, and non-invasive detection of lesions throughout the body. However, there is currently a lack of highly efficient and targeted molecular probes for early and accurate diagnosis of this tumor in clinical practice. The high expression of CAIX plays a central role in the pathogenesis of renal cancer by altering cellular metabolism, inducing angiogenesis, promoting epithelial-mesenchymal transition (EMT), invasion, and metastatic spread. CAIX is highly expressed in 95% of ccRCC cases. In fact, CAIX expression levels have been reported as an independent predictor of survival in advanced ccRCC. Moreover, CAIX expression in normal tissues is limited, primarily restricted to the stomach, the basolateral aspects of proliferating small intestinal crypt epithelial cells, and the gallbladder. Therefore, the differential expression of CAIX between ccRCC tumors and normal tissues highlights its potential as a robust target for nuclear medicine molecular probe research and development in ccRCC. This study utilized high-throughput screening to identify small molecules with high affinity for CAIX. These molecules were subsequently cyclized and modified to enhance their in vivo stability. A bifunctional chelator, H3RESCA, was introduced at the C-terminus to construct the small-molecule compound RESCA-CAIX-LT. PET probes were prepared by radiolabeling with 68Ga or 18F, and their diagnostic efficacy for renal cancer was investigated. Small-animal PET imaging initially demonstrated that the probe exhibits high affinity and excellent imaging performance. The modifications also altered the in vivo metabolic profile of the original design, reducing non-specific uptake in organs such as the stomach, small intestine, and gallbladder. Furthermore, toxicological experiments confirmed the probe's high safety profile and in vivo stability.
适应症
主动联系研究团队
总联系人（申办方／研究总部）
问自己是否符合条件、如何预筛
我的病情档案
档案只保存在您自己的浏览器里，不会上传，任何人（包括本站）都看不到。
英文版（发给研究团队）
Dear Study Team, I am a patient in China and I am interested in participating in your clinical trial: Study Title: Clinical Application of CAIX-Targeted PET Imaging in Tumors ClinicalTrials.gov Identifier: NCT07590310 Sponsor: Peking University Cancer Hospital & Institute Investigational product: Each patient will undergo 68Ga/18F-CAIX-LT-BCH PET/CT imaging, with an administered radioactive dose of approximately 0.05-0.1 mCi/kg. About me: - Age: (please fill in) - Sex: (please fill in) - Confirmed diagnosis and stage: (please fill in) - Biomarkers / genetic testing: not available - Prior and current treatments: (please fill in) - Performance status (ECOG): not assessed - Current location: China - Travel ability: (please fill in) Could you please let me know: 1. Whether I might be eligible for this study; 2. Which site would be closest and most practical for me, and whether remote pre-screening is possible; 3. What documents (medical records, pathology or imaging reports, recent labs) I should prepare for pre-screening. I can provide English translations of my medical records. Thank you very much for your time and help. Kind regards, (your name) (your email / phone with country code)
中文对照（供您核对）
尊敬的研究团队： 我是一位来自中国的患者，希望咨询参加以下临床试验的可能： 研究名称：Clinical Application of CAIX-Targeted PET Imaging in Tumors 试验编号：NCT07590310 申办方：Peking University Cancer Hospital & Institute 研究药物：Each patient will undergo 68Ga/18F-CAIX-LT-BCH PET/CT imaging, with an administered radioactive dose of approximately 0.05-0.1 mCi/kg. 我的基本情况： - 年龄：（请填写） - 性别：（请填写） - 确诊疾病与分期：（请填写） - 基因／标志物检测：暂无 - 既往及当前治疗：（请填写） - 体能状态（ECOG）：未评估 - 目前所在城市：中国 - 可前往范围：（请填写） 想请教三个问题： 1. 我是否可能符合本研究的入组标准？ 2. 哪个中心对我最方便可行？能否远程预筛？ 3. 预筛需要准备哪些资料（病历、病理、影像、近期化验）？ 我可以提供英文翻译版病历。感谢您的时间与帮助。 顺祝安康 （您的姓名） （您的邮箱／带国际区号的电话）
提示：请与主治医生一起发信——由医生署名的申请，回复率远高于患者单独发信。首封邮件不要附身份证号等敏感信息。研究团队通常在 3–10 个工作日内回复，两周无回音可礼貌追问一次。
下一步怎么做？
- 把本页信息带给您的主治医生，评估是否适合参加。
- 点击下方按钮打开官方注册页，查看研究中心联系方式。
- 直接联系研究团队咨询报名事宜（通常有中文同声翻译服务可协助沟通）。