Epidemiological Data on Pain (ALGOBASES)

December 17, 2025 updated by: University Hospital, Lille

Collection of Epidemiological Data on Pain Related to Orthopedic, Thoracic or Gynecological Surgery

The ALGOBASES project is an observational epidemiological study of pain through the collection of pain evaluation questionnaires and information with the aim of creating a descriptive "pain" evaluation in all patients who need to benefit from orthopedic, thoracic or gynecological surgery. The painful symptomatology will thus be evaluated in all its dimensions (demographic data, physical, psychological, socio-cultural components) and linked to the pathology justifying the specialized care. It is planned to collect the same data at each subsequent event in order to allow the determination of predictive factors, pain trajectories according to the type of surgery, and the profile of subjects at risk of acute or chronic postoperative pain.

Study Overview

Study Type

Observational

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

17 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

Adult patients consulting at the university hospital of Lille and needing orthopedic, thoracic, gynecological surgical management with or without painful symptoms and chronic painful patients in the context of organ pathologies.

Description

Inclusion Criteria:

  • Patient over 17 years old Patient needing orthopedic surgery Patient needing gynecological surgery Patient needing thoracic surgery Patient who has given written consent to participate in the trial. Socially insured patient Patient willing to comply with all study procedures and study duration

Exclusion Criteria:

  • Age under 18 years old
  • Non-communicating patient
  • Patient does not understand French
  • Patient without social protection
  • Patient refusing to participate

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Orthopedic surgery
Thoracic surgery
Gynecological surgery

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Descriptive analysis of the typology of pain in patients needing surgery.
Time Frame: Baseline
The typology of pain will be analyzed on the basis of responses to questionnaires on the affective and sensory dimension of pain, quality of life, depression, anxiety and catastrophizing
Baseline

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Descriptive analysis of specific symptomatology of pain Description of the general and painful symptomatology in patients needing surgery.
Time Frame: follow-up over a period of five years during post-operative or pain medical consultation
Describe the specific symptomatology of pain separately according to the 3 pathologies: patients needing orthopedic, thoracic and gynecological surgery.
follow-up over a period of five years during post-operative or pain medical consultation
Pain Catastrophizing Scale (PCS) according to pain
Time Frame: Baseline and follow-up over a period of five years during post-operative or pain medical consultation
Baseline and follow-up over a period of five years during post-operative or pain medical consultation
Hospital Anxiety Depression scale (HAD) according to pain
Time Frame: Baseline and follow-up over a period of five years during post-operative or pain medical consultation
Baseline and follow-up over a period of five years during post-operative or pain medical consultation
EQD5 according to pain
Time Frame: Baseline and follow-up over a period of five years during post-operative or pain medical consultation
Baseline and follow-up over a period of five years during post-operative or pain medical consultation
Identification of factors predictive of acute or chronic pain.
Time Frame: Baseline and at three months, six months, one year
The presence of pain will be defined by the presence of severe pain and/or the presence of neuropathic pain.
Baseline and at three months, six months, one year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Jean-Michel Wattier, MD, University Hospital, Lille

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

October 1, 2020

Primary Completion (Estimated)

December 1, 2025

Study Completion (Estimated)

December 1, 2025

Study Registration Dates

First Submitted

September 4, 2020

First Submitted That Met QC Criteria

September 4, 2020

First Posted (Actual)

September 14, 2020

Study Record Updates

Last Update Posted (Estimated)

December 23, 2025

Last Update Submitted That Met QC Criteria

December 17, 2025

Last Verified

September 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

  • RNI_2018_76
  • 2020-A01112-37 (Other Identifier: ID-RCB number,ANSM)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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