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Hydrogen gas may ease pain after disc surgery

NCT ID NCT05476575

Symptom relief Sponsor: Fu Jen Catholic University Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Aug 25, 2026 · Updated 6 times

Summary

This study looked at whether breathing hydrogen gas before and after surgery could reduce pain and inflammation in 37 people having back surgery for a herniated disc. Participants received hydrogen inhalation around the time of their operation. The researchers measured pain levels and markers of inflammation in the blood. The goal was to see if this simple gas could help people feel better after surgery.

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

37 people

The number who actually took part.

Started

Oct 2021

Finished

Aug 2022

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

20 to 75 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: * Patient with herniated disc leading to severe neuropathic pain refractory to conservative treatment, receiving endoscopic discectomy. Exclusion Criteria: * American Society of Anesthesiologists class IV or above * Sever impairment of heart, lung, kidney and liver and autoimmune disease * Less than 20 years old or older than 75 years old * Patient refusal * Severe complication occurring perioperatively * Current pregnancy * Hemoglobin less than 10g/dL.

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Conditions

The condition(s) this trial relates to.

Acute Pain Pain

As listed by the trial registrant

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

Pain, acute

Contacts and locations

Locations

  • Fu Jen Catholic University Hospital

    New Taipei City, 24300, Taiwan

More trials for these conditions

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