Chronic PainPREVADouleurNCT03277885
Prevalence of Pain Disorders in Employees of French Furniture Shop.
An observational study of Chronic Pain, run by University Hospital, Clermont-Ferrand at 1 site in France.
Trial summary
In France, the Direction of Research, Studies, Evaluation and Statistics, in their 2015 report on "Chronic pain: the state of health of the population in France - Indicators associated with the Public health ", shows that 34.6% of the working population declare themselves to be facing psycho-social risks, including… Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Chronic Pain
- What is being tested?
- chronic pain
- How many people
- 400 participants
- Where
- 1 siteFrance
- Study dates
- 1 Nov 2017to 1 Feb 2019
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: employees of French furniture shop
Who may be able to join
- All voluntary employees of French furniture shop
- Non-opposition to participation in the study
Who cannot join
- Employees unable to understand or answer questionnaires
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Evaluation of the Prevalence of Pain Disorders in a Professional Context Among Employees of French Furniture Shop.
In France, the Direction of Research, Studies, Evaluation and Statistics, in their 2015 report on "Chronic pain: the state of health of the population in France - Indicators associated with the Public health ", shows that 34.6% of the working population declare themselves to be facing psycho-social risks, including chronic pain disorders.
The main survey conducted in France on chronic pain showed that 32% of French people expressed daily pain for more than 3 months, with 20% reporting chronic pain of moderate or severe intensity. According to a report by the HAS in 2009, about 30% of patients consulting for pain in pain center (CETD) are working and 20% are on sick leave or work-related accidents.
Read more
Chronic pain would also be responsible in France for the limitation of professional activities in 6% of 25-64 year olds, 15% job losses, 12% changes in work responsibilities, 12% changes in employment and 18 % of associated depressions. In addition, 40% of chronic pain patients experienced a direct impact at work: loss, change in responsibilities and activity.
Combined with the difficulty of understanding and thus treating chronic pain, these data demonstrate the challenge faced by occupational health services in their preventive, curative and palliative approach to chronic pathologies. Innovation for any new prevention and therapy for chronic pain then becomes necessary.
The main objective of this first study will be the evaluation of the prevalence of pain disorders among the employees of French furniture shop. .
Read the detailed description
In order to have the earliest possible representativeness of French furniture shop, a "virtual" store will be created from 400 volunteer employees from 14 French furniture shop. Each job will be represented and the number of employees per job will respect the average proportion observed in the French furniture shop.
Following the on-site presentation of the details of the survey, by a doctor from Clermont-Ferrand University Hospital, volunteers will be informed within their company of the start of the survey. Each volunteer employee will have access to the information document (paper format) explaining in detail the purpose, content and conduct of the survey. If the voluntary collaborator agrees to participate, he / she will be asked to respond to the survey via the computer platform of the Clermont-Ferrand University Hospital.
Before completing the questionnaires, the employee will be asked to participate in the survey, via a YES / NO choice on the computer platform, which will serve as proof of non-opposition. The employee will be free to reverse his initial decision at any time by informing the coordinating center.
Volunteers who have agreed to participate in the study will be asked to respond to the survey questionnaires during each survey. Volunteers will have no obligation to participate in all investigations.
The data manager of the coordinating center will build a specific and secure platform via the REDCap website (http://project-redcap.org/). Volunteer collaborators will be provided with the web link to respond to the survey directly on the REDCap platform at their workplace or at home.
The deployment of the survey to employees will be carried out over a period of 1 month.
This survey will take place in 4 separate campaigns with a 4-month interval: October / February / June / October (to give an overview of the season effect on the data, as well as a longitudinal aspect). During each campaign, employees will be notified and can participate in the survey. Each employee may participate in one or more investigations.
- Conditions
- Chronic Pain
- Being tested
- chronic pain
- Keywords
- Work related chronic pain, Preventive care
- Medical subject headings
- Chronic Pain
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
chronic painOther
work related chronic pain
What is being measured
The primary outcome is the main question the study is designed to answer.
Prevalence of painful disorders
An employee will be considered painful if the pain intensity is greater than 3/10 on a numerical rating scale (0 = no pain at 10 = worst possible pain).
Measured: At the end of each survey campaign (a campaign lasts 1 month and is repeated every 4 months for 12 months, a total of 4 campaigns).
Secondary outcomes (9)
Sociodemographic characterization
Questionnaires
Measured: at day 1
Number of medical and paramedical visits over the past 12 months for a cause of pain.
Questionnaires
Measured: during each survey campaign (4 campaigns over a 12-month period).
Anxiety and Depression Score
Questionnaire HADS
Measured: at day 1
Quality of life
Questionnaire SF-12
Measured: at day 1
Catastrophism
Questionnaire PCS
Measured: at day 1
Characterization of pain
Questionnaire BPI
Measured: at day 1
Characterization of kinesiophobia
Questionnaire TSK
Measured: at day 1
Screening for neuropathic pain
Questionnaire DN4 interview
Measured: at day 1
Characterization of lumbar pain.
Questionnaire FABQ
Measured: at day 1
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Sep 2017
- Study start1 Nov 2017
- Primary completion5 Nov 2018
- Study completion1 Feb 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Chronic PainStudies of the same condition, open and under way.
- More trials run by University Hospital, Clermont-FerrandThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 400 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospital, Clermont-Ferrand
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Christian DUALE, Principal investigator, University Hospital, Clermont-Ferrand
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03277885
- Sponsor's protocol ID
- CHU-347
- Acronym
- PREVADouleur
- Status last verified
- Aug 2026
- First submitted
- 4 Sep 2017
- Last updated
- 7 Aug 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Lanhers C, Duale C, Corteval A, Coudeyre E, Pereira B, Kerckhove N. Male and female workers suffering from chronic low back pain display different interrelationships between the biopsychosocial variables. J Rehabil Med. 2025 Sep 4;57:jrm43450. doi: 10.2340/jrm.v57.43450.
PubMed 40905462
Study at a glance
From the registry record, last updated by the sponsor on 7 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of the Prevalence of Pain Disorders in a Professional Context Among Employees of French Furniture Shop.
- ClinicalTrials.gov ID
- NCT03277885
- Acronym / sponsor ID
- PREVADouleur / CHU-347
- Conditions
- Chronic Pain
- Keywords
- Work related chronic pain, Preventive care
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 400 participants (actual)
- Lead sponsor
- University Hospital, Clermont-FerrandUniversity, hospital or other
- Study start
- 1 Nov 2017 (actual)
- Primary completion
- 5 Nov 2018 (actual)
- Study completion
- 1 Feb 2019 (actual)
- First posted
- 11 Sep 2017 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
In France, the Direction of Research, Studies, Evaluation and Statistics, in their 2015 report on "Chronic pain: the state of health of the population in France - Indicators associated with the Public health ", shows that 34.6% of the working population declare themselves to be facing psycho-social risks, including chronic pain disorders.
The main survey conducted in France on chronic pain showed that 32% of French people expressed daily pain for more than 3 months, with 20% reporting chronic pain of moderate or severe intensity. According to a report by the HAS in 2009, about 30% of patients consulting for pain in pain center (CETD) are working and 20% are on sick leave or work-related accidents.
Chronic pain would also be responsible in France for the limitation of professional activities in 6% of 25-64 year olds, 15% job losses, 12% changes in work responsibilities, 12% changes in employment and 18 % of associated depressions. In addition, 40% of chronic pain patients experienced a direct impact at work: loss, change in responsibilities and activity.
Combined with the difficulty of understanding and thus treating chronic pain, these data demonstrate the challenge faced by occupational health services in their preventive, curative and palliative approach to chronic pathologies. Innovation for any new prevention and therapy for chronic pain then becomes necessary.
The main objective of this first study will be the evaluation of the prevalence of pain disorders among the employees of French furniture shop. .
Detailed description
In order to have the earliest possible representativeness of French furniture shop, a "virtual" store will be created from 400 volunteer employees from 14 French furniture shop. Each job will be represented and the number of employees per job will respect the average proportion observed in the French furniture shop.
Following the on-site presentation of the details of the survey, by a doctor from Clermont-Ferrand University Hospital, volunteers will be informed within their company of the start of the survey. Each volunteer employee will have access to the information document (paper format) explaining in detail the purpose, content and conduct of the survey. If the voluntary collaborator agrees to participate, he / she will be asked to respond to the survey via the computer platform of the Clermont-Ferrand University Hospital.
Before completing the questionnaires, the employee will be asked to participate in the survey, via a YES / NO choice on the computer platform, which will serve as proof of non-opposition. The employee will be free to reverse his initial decision at any time by informing the coordinating center.
Volunteers who have agreed to participate in the study will be asked to respond to the survey questionnaires during each survey. Volunteers will have no obligation to participate in all investigations.
The data manager of the coordinating center will build a specific and secure platform via the REDCap website (http://project-redcap.org/). Volunteer collaborators will be provided with the web link to respond to the survey directly on the REDCap platform at their workplace or at home.
The deployment of the survey to employees will be carried out over a period of 1 month.
This survey will take place in 4 separate campaigns with a 4-month interval: October / February / June / October (to give an overview of the season effect on the data, as well as a longitudinal aspect). During each campaign, employees will be notified and can participate in the survey. Each employee may participate in one or more investigations.
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- employees of French furniture shop
Key inclusion criteria (2 listed)
- All voluntary employees of French furniture shop
- Non-opposition to participation in the study
Key exclusion criteria (1 listed)
- Employees unable to understand or answer questionnaires
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| chronic painwork related chronic pain | Other | – |
Primary outcome
Prevalence of painful disorders
Time frame: At the end of each survey campaign (a campaign lasts 1 month and is repeated every 4 months for 12 months, a total of 4 campaigns).
An employee will be considered painful if the pain intensity is greater than 3/10 on a numerical rating scale (0 = no pain at 10 = worst possible pain).
9 secondary outcomes
Sociodemographic characterization
Time frame: at day 1
Number of medical and paramedical visits over the past 12 months for a cause of pain.
Time frame: during each survey campaign (4 campaigns over a 12-month period).
Anxiety and Depression Score
Time frame: at day 1
Quality of life
Time frame: at day 1
Catastrophism
Time frame: at day 1
Characterization of pain
Time frame: at day 1
Characterization of kinesiophobia
Time frame: at day 1
Screening for neuropathic pain
Time frame: at day 1
Characterization of lumbar pain.
Time frame: at day 1
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Aug 2026.
- Results publication: PubMed 40905462Lanhers C, Duale C, Corteval A, Coudeyre E, Pereira B, Kerckhove N. Male and female workers suffering from chronic low back pain display different interrelationships between the biopsychosocial variables. J Rehabil Med. 2025 Sep 4;57:jrm43450. doi: 10.2340/jrm.v57.43450.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Christian DUALE principal investigator
University Hospital, Clermont-Ferrand
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Chronic Pain, run by University Hospital, Clermont-Ferrand at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 7 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Prevalence of painful disorders (time frame: At the end of each survey campaign (a campaign lasts 1 month and is repeated every 4 months for 12 months, a total of 4 campaigns).). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03277885, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Aug 2026.