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经皮神经电场刺激对 1 型或 2 型糖尿病患者症状控制/神经系统活动的影响 (PENFS)

2026年9月28日 更新者:Thomas V. Nowak、Indiana University

经皮神经电场刺激 (PENFS) 对糖尿病患者症状控制和自主神经系统活动的影响

The purpose of this study is to evaluate whether stimulation of the vagus nerve can improve nausea and vomiting in diabetic gastroparetic patients.

研究概览

详细说明

The vagus nerve is one of the main determinants of gastrointestinal motility and gastric emptying. It has been speculated that neuropathy of the vagus nerve is the cause of the delay in gastric emptying in gastroparesis, the symptoms of which include nausea, vomiting, weight loss, early satiety, abdominal pain and bloating.

Percutaneous Electrical Nerve Field Stimulation (PENFS) has been approved by the FDA to treat adolescents with functional abdominal pain associated with irritable bowel syndrome. In this study, the impact of PENFS on gastroparesis symptoms will be evaluated.

After informed consent is obtained, participant eligibility will be assessed at a Screening Visit. A Hemoglobin A1C level (HgbA1c) will be drawn for this purpose. Eligible participants will then return for 5 Study Visits at which, they will:

  • Complete will complete 4 questionnaires
  • Lie in a supine position and have ECG electrodes applied to the chest and/or arms, palmar skin electrodes placed on the fingers of the non-dominant hand to measure galvanic skin response (GSR) and sympathetic nerve activity, and a chest strap to record respiratory activity. Once the equipment is placed, electrocardiogram (ECG) and GSR will be recorded for 20 minutes in the supine position. After the 20 minutes, participants will be asked to sit while ECG and GSR are recorded for 2 additional minutes. Participants will then stand for an additional 2 minutes of ECG and GSR recordings.
  • Have a PENFS device applied to the left ear (the device will be applied at the first four study visits, and not at the fifth). The device will remain in place for 5 days after each visit.

Each participant will have a PENFS device applied at the study visits, however, participants are randomized to whether they will receive active stimulation during the study. The device will remain in place for 5 days after each visit. On the morning of Day 6 after each study visit, the participants will remove the PENFS device and return it at the next study visit.

Participants will also complete a daily diary to document symptoms over the previous 24 hours. Prior to each study visit, participants will be asked to refrain from caffeine on the day of the visit and to refrain from nicotine use for 24 hours prior to the visit.

研究类型

介入性

注册 (估计的)

60

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。

学习联系方式

  • 姓名:Maureen Schilling, BS
  • 电话号码:317-278-2064
  • 邮箱:maschi@iu.edu

学习地点

    • Indiana
      • Indianapolis、Indiana、美国、46202
        • Indiana University Hospital
        • 首席研究员:
          • Thomas V Nowak, MD
        • 接触:
          • Maureen Schilling, BS
          • 电话号码:3172782064
          • 邮箱:maschi@iu.edu

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 至 60年 (成人)

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Wiling to have one teaspoon (5 ml) of blood drawn.
  • Willing to have electrodes placed in the external ear.
  • Diagnosed with gastroparesis for twelve months or longer
  • Diagnosed with diabetes either Type 1 or Type 2
  • Documented delayed gastric emptying (>10% retention of the test meal at four hours) on a standardized scrambled-egg scintigraphy gastric emptying test performed in the last two years.
  • Upper GI endoscopy indicating no mechanical obstruction performed in the last five years.
  • Symptoms of nausea and vomiting consistent with clinical diagnosis of gastroparesis (as opposed to other causes of nausea and vomiting such as mechanical obstruction, acute viral illness, chemotherapy, psychogenic vomiting.
  • Documented Hb A1c within three months of screening or at the time of screening (<=8.0)

Exclusion Criteria:

  • Unable to provide consent
  • Pregnant females
  • Medical records indicate intestinal pseudo-obstruction
  • Diagnosed with cardiac arrhythmia
  • History of prior gastric surgery
  • History of vagotomy
  • History of organ transplantation
  • History of seizures
  • Diagnosed with primary swallowing disorders
  • Subjects who are dependent on drugs like Marinol for their condition
  • Those diagnosed with psychogenic vomiting and not related to gastroparesis
  • Medically unstable subjects
  • Those at high surgical risk
  • Subjects taking narcotic analgesics daily.
  • Those with poorly controlled diabetes mellitus (Hgb A1c>8) within three months of screening or at the time of screening.
  • Subjects diagnosed with hemophilia, psoriasis vulgaris are excluded
  • Those having a cardiac pacemaker will be excluded from the study.

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:单身的

武器和干预

参与者组/臂
干预/治疗
有源比较器:ACTIVE (electrical charge)

The PENFS device is placed behind the patient's left ear and connected to stimulation needles on the auricle. The appliance transmits low-frequency electrical impulses throughout the auricle.

The IB-Stim is a percutaneous electrical nerve field stimulator (PENFS) system intended to be used in patients 11-18 years of age with functional abdominal pain associated with irritable bowel syndrome (IBS). The IB-Stim is intended to be used for 120 hours per week up to 3 consecutive weeks, through application to branches of Cranial Nerves V, VII, IX and X, and the occipital nerves identified by transillumination, as an aid in the reduction of pain when combined with other therapies for IBS.

其他名称:
  • IB-STIM
假比较器:Sham percutaneous electrical nerve field stimulation (no electrical charge)

The PENFS device is placed behind the patient's left ear and connected to stimulation needles on the auricle. The appliance will not transmit any electrical impulses.

SHAM (no electrical charge)

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
Change in Gastroparesis Cardinal Symptom Index Daily Dairy
大体时间:Baseline, Week 5

A modified version of the GASTROPARESIS CARDINAL SYMPTOM INDEX - DAILY DIARY (GCSI-DD) will be used. The questionnaire evaluates 4 gastroparesis symptoms (nausea, early satiety, postprandial fullness, upper abdominal pain) and asks participants to rate the severity of symptoms over the past 24 hours on a scale from 0 (none) to 4 (very severe). Additionally, vomiting episodes are reported (0 for none, 1 for one episode, 2 for two episodes, 3 for three episodes, or 4 for four or more episodes). Lower total scores indicate fewer or less severe symptoms.

Baseline, Week 5
Change in Patient Assessment of Upper Gastrointestinal Disorder Symptoms
大体时间:Baseline, Week 5

Scores are calculated by averaging the scores for each item in the subscale, with scores ranging from 0 (none or absent) to 5 (very severe). Optimal outcome would be a score of zero, no episodes/symptoms.

Baseline, Week 5

次要结果测量

结果测量
措施说明
大体时间
Change in Heart Rate Variability
大体时间:Baseline, Week 5

Heart Rate Variability is reported on a 0-100 scale.

Baseline, Week 5
Change in Anxiety
大体时间:Baseline, Week 5

The General Anxiety Disorder (GAD)-7 scale is from 0-21, where 0= no anxiety and 21=severe anxiety

Baseline, Week 5
Change in the measure of depression
大体时间:Baseline, Week 5

Patient Health Questionnaire (PHQ)-8 is a questionnaire that measures self-reported depressive systems. PHQ-8 uses a range from 0-24, where 0=no depressive symptoms and 24=severe symptoms.

Baseline, Week 5
Change in Patient Assessment of Upper Gastrointestinal Disorder Symptoms by Diabetes Type
大体时间:Baseline, Week 5

Scores are calculated by averaging the scores for each item in the subscale, with scores ranging from 0 (none or absent) to 5 (very severe). Optimal outcome would be a score of zero, no episodes/symptoms.

Baseline, Week 5
Change in Gastroparesis Cardinal Symptom Index Daily Diary by Diabetes Type
大体时间:Baseline, Week 5

A modified version of the GASTROPARESIS CARDINAL SYMPTOM INDEX - DAILY DIARY (GCSI-DD) will be used. The questionnaire evaluates 4 gastroparesis symptoms (nausea, early satiety, postprandial fullness, upper abdominal pain) and asks participants to rate the severity of symptoms over the past 24 hours on a scale from 0 (none) to 4 (very severe). Additionally, vomiting episodes are reported (0 for none, 1 for one episode, 2 for two episodes, 3 for three episodes, or 4 for four or more episodes). Lower total scores indicate fewer or less severe symptoms.

Baseline, Week 5

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。

调查人员

  • 首席研究员:Thomas V Nowak, MD、IU School of Medicine/IU Health

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 (估计的)

2027年2月10日

初级完成 (估计的)

2029年2月1日

研究完成 (估计的)

2029年2月1日

研究注册日期

首次提交

2024年9月9日

首先提交符合 QC 标准的

2025年1月14日

首次发布 (实际的)

2025年1月20日

研究记录更新

最后更新发布 (实际的)

2026年10月1日

上次提交的符合 QC 标准的更新

2026年9月28日

最后验证

2026年9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)?

不

IPD 计划说明

All data and devices will be stored containing only the study subject number and dates of device usage. Sharing this data will not involve any IPD.

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

是的

在美国制造并从美国出口的产品

是的

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

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