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Efficacy and Safety of RFA vs MWA for Treatment of Large Benign Thyroid Nodules, RCT

2026年9月15日 更新者:Man Him Matrix Fung、The University of Hong Kong

Comparing the Efficacy and Safety of Radiofrequency Ablation Versus Microwave Ablation for the Treatment of Large Benign Thyroid Nodules, a Randomized Controlled Trial

We conduct a multi-institutional randomized control trial of RFA and MWA for the primary treatment of large, benign nodules. Adult patients >/=18 years of age who have a solitary thyroid nodule ≥20ml in volume who presents to 1) Columbia University, NY or 2) Queen Mary Hospital, Hong Kong for consultation will be eligible for enrollment in the study. They will need either a) two benign fine needle biopsies, with the most recent biopsy performed within 1 year of enrollment in study or b) one benign fine needle biopsy and low suspicion characteristics on ultrasound. Both functional and non-functional nodules are eligible.

Patients will be randomly assigned to either treatment arm a) RFA or treatment arm b) MWA according to a pre-generated block randomization list.

研究概览

详细说明

Benign thyroid nodules can cause compressive symptoms for patients, including neck pressure and discomfort, dysphagia, dyspnea, and dysphonia. Some nodules will become autonomously functioning causing hyperthyroidism. Traditionally the gold standard treatment for these benign, but problematic nodules, has been thyroidectomy. Although generally a low risk operation, thyroidectomy is associated with some risk for recurrent laryngeal nerve injury, bleeding, infection, and need for thyroid hormone supplementation.

Introduced in the early 2000s, ultrasound-guided percutaneous ablation of thyroid lesions has emerged as a potential alternative to surgery in patients with benign thyroid nodules. Of the myriad ablation methods, the most commonly used technique are radiofrequency ablation (RFA) and microwave ablation (MWA). The two techniques used different mechanisms for heat generation.

Current evidence comparing RFA versus MWA for thyroid ablation were limited and were either retrospective or non-randomized, with focus mainly on small thyroid nodules of ≤10ml in volume. There is a lack of high quality evidence on the safety and efficacy of RFA versus MWA for the treatment of large thyroid nodules (≥20ml).

The aim of this randomized controlled trial is to compare the safety and efficacy of RFA and MWA in the treatment of large, benign thyroid nodules.

The primary outcome of is the volume reduction rate at 6 months after ablation. The secondary outcomes include safety, complication rates and quality of life after both procedures.

研究类型

介入性

注册 (实际的)

50

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习地点

      • Hong Kong、香港
        • Queen Mary Hospital

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 及以上 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria:

  • who have a solitary thyroid nodule ≥20ml in volume
  • two benign fine needle biopsies, with the most recent biopsy performed within 1 year of enrollment in study or one benign fine needle biopsy and low suspicion characteristics on ultrasound
  • Both functional and non-functional nodules are eligible

Exclusion Criteria:

  • have multiple nodules and planned simultaneous ablation
  • cytologically indeterminate thyroid nodules
  • nodules with substernal extension or posterior extension that cannot be viewed sufficiently with ultrasound
  • current pregnancy or cardiac arrhythmias

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:随机化
  • 介入模型:并行分配
  • 屏蔽:无(打开标签)

武器和干预

参与者组/臂
干预/治疗
实验性的:Microwave ablation

Apply microwave ablation to those large benign thyroid nodules for shrinkage purpose

Ultrasound-guided thermal ablation will be performed using ECO Medical internally cooled MWA antennas (16 or 17 gauge) powered by the ECO Medical generator in accordance with the trans-isthmic 'moving shot' technique.

其他名称:
  • MWA
实验性的:Radiofrequency ablation

Apply radiofrequency ablation to those large benign thyroid nodules for shrinkage purpose

Ultrasound-guided thermal ablation will be performed using STARmed internally cooled RFA electrodes (18 gauge) powered by the VIVA RF generator in accordance with the trans-isthmic 'moving shot' technique.

其他名称:
  • 射频消融

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Volume reduction rate (VRR) of thyroid nodule at 6 months (%)
大体时间:6 months

To measure the volume reduction rate (VRR) of thyroid nodule at 6-month.

volume of nodule= length(cm) x width(cm) x depth(cm) x (π / 6 ) VRR = [(volume at baseline - volume at 6-month)/volume of baseline] x 100%

6 months

次要结果测量

结果测量
措施说明
大体时间
Volume reduction rate (VRR) of thyroid nodule at 12 months (%)
大体时间:12-months

To measure the volume reduction rate (VRR) of thyroid nodule at 12-month. volume of nodule= length(cm) x width(cm) x depth(cm) x (π / 6 ) VRR = [(volume at baseline - volume at 12-m / Volume at baseline] x 100%

12-months
Changes in compressive symptom scores (0-100)
大体时间:12 months

To measure the changes in compressive symptoms scores. Compressive symptoms score is from 0 to 100. The higher score means more compressive symptom.

12 months
Changes in cosmetic symptom scores (1-4)
大体时间:12 months

To assess the change of cosmetic symptom by experienced doctors until 12 months.

Cosmetic symptoms is from 1 to 4 as below

  1. = no palpable goitre
  2. = Palpable goiter but invisible
  3. = Goitre only visible to experienced clinician
  4. = Easily visible goitre
12 months
Peri-operative pain scores (0-10)
大体时间:12 months

To measure the change in pain score before and after ablation. The pain score is from 0 to 10, the higher score means more painful.

12 months
Complications from procedure including vocal cord palsy, bleeding, infection, nodule rupture, skin burn
大体时间:12 months

Description: To assess for any complications arising from procedure during follow-up period after ablation

12 months

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2023年12月5日

初级完成 (估计的)

2026年10月1日

研究完成 (估计的)

2027年3月30日

研究注册日期

首次提交

2026年8月31日

首先提交符合 QC 标准的

2026年8月31日

首次发布 (实际的)

2026年9月4日

研究记录更新

最后更新发布 (实际的)

2026年9月21日

上次提交的符合 QC 标准的更新

2026年9月15日

最后验证

2026年8月1日

更多信息

与本研究相关的术语

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

未定

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

在美国制造并从美国出口的产品

不

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