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Smartphone video may read pain in a Patient's face

NCT ID NCT04011189

Diagnosis Sponsor: KK Women's and Children's 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 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 07, 2026 · Last updated Aug 07, 2026

Summary

This trial tests whether an automated video analysis algorithm can detect pain in post-surgical patients by analyzing their facial expressions and body movements. Participants will be videotaped with a smartphone before and after surgery or pain procedures, and their reported pain scores will be compared with the algorithm's predictions. The goal is to refine the algorithm to improve its sensitivity, potentially offering a new way to measure pain objectively.

What this could mean

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

Active substance
Automated video analysis algorithm for pain detection
What this could lead to
If successful, this could lead to a non-invasive, objective pain assessment tool that helps doctors gauge pain in patients who cannot easily communicate, such as children or those with cognitive impairments.
What could go wrong
The algorithm is still being refined and may not accurately detect pain in all patients or settings. Video-based assessments could be affected by lighting, movement, or individual differences in pain expression.

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 370 people

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

Started

Aug 2019

Expected to finish

Dec 2026

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.

Ages

6 to 70 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 Phases 1, 2: * Patients undergoing surgical and pain procedures, inpatient and outpatient consultations * American Society of Anaesthesiologists (ASA) physical status 1, 2 or 3 (ASA 1, 2 or 3) patients Phase 3: Male children undergoing laser circumcision in day surgery Exclusion Criteria Phases 1, 2: * Pregnant patients; * Medical problems/ medications: 1. Psychiatric disorders (e.g. anxiety, depression) 2. Neurological disorders (e.g. Cerebrovascular accident, Parkinson's Disease) 3. Musculoskeletal limitations that result in gait abnormalities/limitations Phase 3: * Developmental delay/ cognitive impairment * Autism Spectrum disorder * Attention-deficit/hyperactivity disorder * Excessive anxiety or requires sedative premed * Chronic pain conditions and/or medication * Previous traumatic pain experience

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Conditions

The condition(s) this trial relates to.

Pain, Postoperative

As listed by the trial registrant

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

Pain, postoperative

Contacts and locations

Locations

  • KK Women's and Children's Hospital

    Singapore, 229899, Singapore

  • Singapore General Hospital

    Singapore, Singapore

More trials for these conditions

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