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Ear zaps may Kick-Start stomach after pancreatic surgery

NCT ID NCT06786923

Symptom relief Sponsor: Affiliated Hospital of Nantong University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Sep 02, 2026 · Updated 3 times

Summary

This study tested whether a device that gently stimulates the vagus nerve through the ear could reduce delayed stomach emptying after a major pancreatic surgery (pancreaticoduodenectomy). 84 patients were randomly assigned to receive the stimulation during surgery or not. The goal was to see if fewer patients would need a nasogastric tube or have trouble eating solid food a week after surgery.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
transcutaneous auricular vagus nerve stimulator (a device that stimulates the vagus nerve through the ear)
What this could lead to
If it works, this could offer a simple, non-drug way to help the stomach empty normally after pancreatic surgery, reducing hospital stays and discomfort.
What could go wrong
This is a small, single-center trial. The effect may be modest or not apply to all patients. The device may cause discomfort or fail to improve outcomes.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

84 people

The number who actually took part.

Started

Jan 2025

Finished

Oct 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age ≥18 years; * Diagnosed with pancreatic tumors or periampullary tumors by imaging or pathology and scheduled for pancreaticoduodenectomy; * No distant metastases and tumors are resectable; * Classified as American Society of Anesthesiologists (ASA) physical status I to III; * Capable of understanding the study procedures and various assessment scales and able to effectively communicate with the researchers; * Willing to participate in the study and provide written informed consent. Exclusion Criteria: * Patients with other malignant tumors; * Patients who have undergone chemotherapy or radiotherapy before surgery; * Patients with chronic organ dysfunction; * Patients with a history of gastrectomy or other gastric surgeries; * Patients diagnosed with chronic gastrointestinal inflammation, peptic ulcers, or a history of gastroparesis, pyloric, or other gastrointestinal obstructions; * Patients with a history of autonomic dysfunction (e.g., peripheral neuropathy, vagotomy, thyroid dysfunction, amyloidosis, asthma, heart failure, renal dysfunction, or alcoholism); * Patients with implanted stimulators (e.g., pacemakers, implanted vagus nerve stimulators, deep brain stimulators, spinal cord stimulators), cochlear implants, or metallic implants (excluding dental work); * Patients who recently used prokinetic agents, cholinergic or anticholinergic drugs, or hormones; * Patients who received vagus nerve stimulation or acupuncture within 1 month before the study; * Patients with skin damage or dermatological conditions at the stimulation site; * Patients with a preoperative heart rate below 60 beats per minute; * Patients unable to cooperate with assessments; * Patients participating in other clinical trials.

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Conditions

The condition(s) this trial relates to.

pancreatic neoplasm periampullary adenocarcinoma gastroparesis prevention target

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Delayed gastric emptying

Contacts and locations

Locations

  • Affiliated hospital of Nantong University

    Nantong, Jiangsu, 226001, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.