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A new study mines health data to spot painkiller dependence early

NCT ID NCT03684317

Knowledge-focused Sponsor: University Hospital, Toulouse 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
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 31, 2026 · Last updated Sep 01, 2026 · Updated 1 time

Summary

This study investigates whether early changes in how people use painkillers can predict who will develop dependence, even without a prior history of addiction. Researchers will analyze a large French national health database, focusing on adults who are new users of analgesic drugs. By tracking their prescriptions and any related complications over time, the study aims to identify warning signs that could help healthcare providers intervene sooner.

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 doctors identify patients at risk of becoming dependent on painkillers before problems start, enabling earlier prevention and safer prescribing.
What could go wrong
This is an observational study using existing health records, so it can show patterns but not prove cause and effect. The findings may not apply to all populations or healthcare systems.

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.

Started

Jun 2019

Finished

Apr 2023

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

Subjects included in the SNIIRAM database (affiliated to the 3 French main Insurance Scheme)

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: * Subjects included in the SNIIRAM (French National inter-scheme health insurance information system) database * Age \>18 at index date (date of first analgesic dispensing) * At least three dispensing of analgesic drugs * At least two years of available follow-up at the date of first analgesic dispensing in the SNIIRAM database * No dispensing for any of the analgesics of interest in the past 12 months (selection of new users only) Exclusion Criteria: * none

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Conditions

The condition(s) this trial relates to.

Behavior, Addictive

As listed by the trial registrant

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

Addiction

Contacts and locations

Locations

  • University Hospital toulouse

    Toulouse, France

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