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Chill out: cold neck trick may ease IV pain for obese patients

NCT ID NCT07253961

Symptom relief Sponsor: Istinye University Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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
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 Results may not be published yet.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)
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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
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Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests a simple, drug-free way to reduce pain when getting an IV in people with obesity (BMI over 30). Researchers will apply a cold marble stone to the side of the neck for 5 seconds before inserting the IV. They believe this may stimulate the vagus nerve and lower pain. 150 adults having elective surgery will take part, with half getting the cold treatment and half getting standard care. Pain levels and vital signs will be compared between the two groups.

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

About 150 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Dec 2025

An estimate. Start dates often move.

Expected to finish

Feb 2026

An estimate. End dates often move.

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 to 72 years

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: * Adults aged 18-72 years * physical status I-III * Scheduled for elective surgery * Body Mass Index (BMI) \> 30 kg/m² * Provided written informed consent Exclusion Criteria: * Emergency surgical cases * Oncologic surgery * Pregnant patients * History of hand dorsum surgery or scarring * Psoriasis or other local skin lesions/infections at cannulation site * Peripheral vascular disease * Chronic analgesic, opioid, steroid, or gabapentinoid use * Substance abuse history * Peripheral neuropathy * Previous or ongoing oncologic treatment * Severe mental retardation or communication impairment preventing cooperation

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As listed by the trial registrant

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

Cold stimulation Vagal nerve stimulation Venipuncture pain

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

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Contacts and locations

Locations

  • Istinye Üniversity

    Istanbul, Merkez Mahallesi, 34250, Turkey (Türkiye)

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