Please assess the completion status of the following clinical trial:

Trial Title: Validation of the French Version of the Back Belief Questionnaire

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: COHORT
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* The patient must have given his/her informed and signed consent~* The patient must be insured or beneficiary of a health insurance plan~* The patient has had back pain for at least 3 months~Exclusion Criteria:~* The patient is in an exclusion period determined by a previous study~* The patient is under judicial protection, under tutorship or curatorship~* The patient refuses to sign the consent~* It is impossible to correctly inform the patient~* The patient is pregnant~* The patient is breastfeeding

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Chronic back pain patients (Type: None): Patients who have had back pain for at least three months.

Based on this trial design, predict the completion outcome and termination type (if applicable).