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Spinal anesthesia study probes nerve fiber changes

NCT ID NCT03121261

Knowledge-focused Sponsor: University Hospital Dubrava 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 This study
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 Results may not be published yet.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)
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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study looks at how spinal anesthesia and the drug clonidine affect tiny nerve fibers (A-delta fibers) in people having hernia surgery. Researchers will measure nerve signals before, during, and after anesthesia to see if adding clonidine changes how the nerves work. The goal is to better understand how these drugs interact with the nervous system, not to treat a disease.

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

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 60 people

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

Started

May 2017

Expected to finish

Oct 2028

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 60 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: ASA one and two status BMI 18,5 to 24 Exclusion Criteria: Coagulation disorders Polyneuropathy Diabetes mellitus Alcoholism Systemic inflammatory and malignant diseases Stroke

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Conditions

The condition(s) this trial relates to.

Hernia, Inguinal

As listed by the trial registrant

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

Inguinal hernia Spinal anesthesia

Contacts and locations

Locations

  • Clinical Hospital Dubrava

    Zagreb, 10000, Croatia

More trials for these conditions

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