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Can big data predict who gets sick after surgery?

NCT ID NCT04433676

Knowledge-focused Sponsor: Jakob Wallden Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 19, 2026 · Last updated Aug 20, 2026 · Updated 1 time

Summary

This study analyzes data from over a million surgeries recorded in a Swedish registry to understand how common early postoperative nausea and vomiting (PONV) is and what factors increase the risk. It includes adults who had surgery under general or regional anesthesia. By looking at different patient groups and procedures, the researchers hope to identify patterns that could help predict and prevent this uncomfortable complication.

What this could mean

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

What this could lead to
If successful, this could help identify which patients are at higher risk for early postoperative nausea and vomiting, leading to better prevention strategies.
What could go wrong
This is an observational registry study, so it can show associations but not prove cause and effect. The findings may not apply to all surgical settings.

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.

Participants

About 1,500,000 people

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

Started

Jan 2016

Expected to finish

Dec 2029

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

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

Who is studied

Registry data of patients with surgical procedures under general or regional anesthesia in Sweden 2016-2022.

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: * Procedure under general or regional anaesthesia * Age \>=18 years at the day of the procedure. Exclusion Criteria: * No entry of the PONV-variable in the SPOR-registry

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Conditions

The condition(s) this trial relates to.

Postoperative Complications Postoperative Nausea and Vomiting

As listed by the trial registrant

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

Postoperative complications Postoperative nausea and vomiting

How to take part

Only the study team decides who joins. These are the ways to reach them.

  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

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Västernorrland County Council / Sundsvall Hospital

    RECRUITING

    Sundsvall, X, 851 86, Sweden

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