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Can a phone app decode chronic pain?

NCT ID NCT03931694

Knowledge-focused Sponsor: University Hospital, Clermont-Ferrand 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 10, 2026 · Last updated Aug 11, 2026 · Updated 1 time

Summary

This trial tests whether a smartphone app called e-DOL can help doctors and patients track chronic pain over time. The app lets patients record pain levels, anxiety, and sleep quality, while doctors view the data on a web platform. The study includes adults with chronic pain who own a smartphone and aims to see if the tool is easy to use and practical for everyday care.

What this could mean

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

Active substance
e-DOL, a smartphone application for patients and a web platform for physicians
What this could lead to
If the app proves practical and useful, it could offer a new way to personalize chronic pain care and improve communication between patients and doctors.
What could go wrong
This is a feasibility study, so it focuses on whether the tool is usable rather than on health outcomes. The app may not be accepted by all patients or may not improve pain management in the long run.

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

113 people

The number who actually took part.

Started

Feb 2019

Finished

Jun 2020

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.

Who is studied

patients with chronic pain

Ages

18 to 85 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: * All patients with chronic pain * patients with and regular users of a smartphone * Non-opposition to participation in the study Exclusion Criteria: * Patient unable to understand or answer questionnaires

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Conditions

The condition(s) this trial relates to.

Chronic Pain chronic pain syndrome

As listed by the trial registrant

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

Chronic pain

Contacts and locations

Locations

  • AP-HP Ambroise Paré

    Paris, France

  • Ap-Hp Cochin

    Paris, France

  • Ap-Hp Lariboisiere

    Paris, France

  • Ch Bayeux

    Bayeux, France

  • Ch Voiron

    Voiron, France

  • Chu Amiens

    Amiens, France

  • Chu Clermont-Ferrand

    Clermont-Ferrand, 63003, France

  • Chu Grenoble

    Grenoble, France

  • Chu Limoges

    Limoges, France

  • Chu Nimes

    Nîmes, France

  • Chu Rouen

    Rouen, France

  • Chu Toulouse

    Toulouse, France

  • Hospices Civils de Lyon

    Lyon, France

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