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正在招募不适用编号 NCT04399941

Intravascular Ultrasound in Patients With End-stage Renal Disease on Dialysis

报名条件（概要）

  • 年龄：18 Years – 85 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

United States

药品与企业信息

Venography诊断检测

其他名称：Fistulogram

The venography will be performed as part of the patient's standard of care. The dialysis access will be punctured upstream of the arteriovenous anastomosis in AVF or AVG using a 4-F coaxial access set (Micro- puncture; Cook, Inc, Bloomington, Indiana). The contrast will be injected intravenously by a pump with 200 psi and a bolus of 2m/sec for total of 5 ml during upper extremity vein filming and 10 ml of contrast bolus by 3 ml/s during central vein filming while holding the breath in inspiration in anterioposterior plane.

Intravascular ultrasound (IVUS)诊断检测

IVUS will be performed through the same sheath of the coaxial access set using an Eagle Eye Platinum RX digital catheter 7F over a compatible guidewire under fluoroscopic guidance. The lesion will be estimated fluoroscopically from the marker IVUS catheter in the vein and the cranial and caudal margins of stenotic lesion will be directly visualized during pullback of the IVUS catheter.

Image processing其他

Image processing will be performed by two radiologists in a blinded manner on the images devoid of personal identifier. An adjudication committee will oversee the process and confirm their findings in case of a discrepancy.

研发企业

Boston Medical Center研究机构/其他

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。

合作机构

  • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)美国国立卫生研究院

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）

Hemodialysis represents a life line of patients with end stage renal disease, who are commonly maintained on hemodialysis through catheters. Prolonged exposure to these catheters eventually damages the walls of veins, which results in stenosis at the local site. This condition is called central venous stenosis (CVS) and affects number of patients on hemodialysis in the United States and can compromise the dialysis efficacy. The current diagnostic modality for CVS is venography, which has several limitations. This study proposes to examine intravenous ultrasound (IVUS) as a potentially superior modality, which will provide additional information.

适应症

End Stage Renal Disease

主动联系研究团队

这项试验目前在中国大陆没有研究中心

这种情况下，直接发"入组咨询"往往会被回复"您所在地区没有中心"。更有效的做法是申请同情用药／扩展准入（由主治医生一同提出），或询问能否到最近的境外中心参加。下面已为您切换到对应的信件版本。

查看完整申请路径与成功率说明 →

总联系人（申办方／研究总部）

研究中心联系方式

问自己是否符合条件、如何预筛

我的病情档案

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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: Intravascular Ultrasound in Patients With End-stage Renal Disease on Dialysis
ClinicalTrials.gov Identifier: NCT04399941
Sponsor: Boston Medical Center
Investigational product: Venography, Intravascular ultrasound (IVUS), Image processing

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：Intravascular Ultrasound in Patients With End-stage Renal Disease on Dialysis
试验编号：NCT04399941
申办方：Boston Medical Center
研究药物：Venography、Intravascular ultrasound (IVUS)、Image processing

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）
用邮件客户端发送给 vipul.chitalia@bmc.org

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？

  1. 把本页信息带给您的主治医生，评估是否适合参加。
  2. 点击下方按钮打开官方注册页，查看研究中心联系方式。
  3. 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）。
在 ClinicalTrials.gov 查看官方页面