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Validation of French PHQ-4 and PC-PTSD-5 Screening Scales

Key facts

Who runs it
Assistance Publique - Hôpitaux de Paris
Where
France1 site in 1 countryChoose a country to see its sites
Trial code
Status
Recruiting
People taking part
90 people, planned
Started
26 Jan 2026
Expected to end
15 Aug 2027
Type of study
Observational
Record updated
9 February 2026

Who can take part

Age
18 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

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Who can take part

  • Age ≥ 18 years,
  • Outpatient or hospitalized for any health-related reason,
  • Oral and written proficiency in French,
  • Patient informed and willing to participate in the study,
  • Patient with health insurance coverage

Who cannot take part

  • Other factors preventing obtaining non-opposition or conducting the research, such as: limited French proficiency, hearing impairment, or significant cognitive disorders
  • Individuals under legal protection measures (guardianship, conservatorship, or legal supervision),

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

Mental illness is a major public health issue. It affects one in five people, represents the largest expense for health insurance (14%), is the leading cause of years lived with disability, and suicide is the main cause of death among people aged 15 to 35. Depression affects 15 to 20% of individuals at some point in their lives. Trauma-related disorders affect 4.6% of people, including 1- 2% with post-traumatic stress disorder (PTSD).

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Screening for mental health problems in primary care is crucial. It enables doctors to provide early treatment, reduces the need for emergency care, and decreases both the number and duration of hospital stays. However, general practitioners and other non-mental health professionals often report lacking the time, training, and tools to conduct such screenings. Fortunately, brief and validated screening tools exist in English: The PHQ-4 (Patient Health Questionnaire-4) for anxiety and depression, and the PC-PTSD-5 (Primary Care PTSD Screen for DSM-5) for PTSD. So far, no French versions of these tools have been validated.

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

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Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Validation of the French Versions of the PHQ-4 Anxiety and Depression Scale and the PC-PTSD-5 Post-Traumatic Stress Disorder Screening Scale
Record updated
9 February 2026