Rheumatoid Arthritis (RA)PROMESS_1NCT06876064
National Cohort of Subjects at Risk of Developing Rheumatoid Arthritis
An observational study of Rheumatoid Arthritis (RA), run by University Hospital, Montpellier at 1 site in France.
Trial summary
PROMESS 1 is a multicenter cohort interventional study aiming at analyzing the factors associated with the risk of developing clinical arthritis among exposures or combinations of exposures in patients at risk of rheumatoid arthritis (RA), as they have high levels of anti-citrullinated peptides autoantibodies (ACPA ≥2… Read more about this study
- Who is it for?
- Ages 18 to 80 yearsHealthy volunteers can take part
- Conditions the study is for
- Rheumatoid Arthritis (RA)
- What is being tested?
- Blood test, Urine test and stool collection
- Type of treatment
- Pill or oral medicine, Surgery or procedure, Lifestyle or therapy programme
- How many people
- 150 participants
- Where
- 1 siteFrance
- Study dates
- 7 Oct 2025to Dec 2029
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
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 to 80 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: The patients will be recruted during consultation or hospitalization.
Who may be able to join
- Age between 18 and 80 years old
- Group 1: Individuals with high risk of RA (ACPA ≥ 2N or ACPA ≥ N and rheumatoid factor ≥ 2N) and clinical signs of arthralgia (CSA criteria ≥ 4).
- Group 2: High-risk individuals (ACPA ≥ 2N or ACPA ≥ N and rheumatoid factor ≥ 2N) without clinical arthralgia (CSA criteria < 4).
- Group 3: First-degree relatives of RA patients (no symptoms, negative controls).
- Group 4: Newly diagnosed untreated RA patients (ACPA ≥ 2N or ACPA ≥ N and rheumatoid factor ≥ 2N) (positive controls).
Who cannot join
- Groupe1-2-3:
- Presence of clinical joint swelling (synovitis) at the time of inclusion and previously noted by a doctor
- All groups:
- Taking current or past background treatment for RA, even for another indication
- Corticosteroid therapy ≥10 mg at baseline and in the previous week
- Presence of another connective tissue disease (Sjögren's, dermatomyositis, scleroderma, Sharp syndrome, etc.)
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- Subject unable to read and/or write
- Inability to follow the patient during the study period
- Failure to obtain consent
- Non-affiliation to a social security scheme,
- Persons placed under legal protection, under curatorship or under guardianship
- Pregnant or breastfeeding women
- Person participating in another intervention research including an
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
France1 site, 1 recruiting
- Recruiting
CHU Montpellier
Montpellier, Hérault, 34000
CLAIRE DAIEN, Professor, +33 6 85 40 27 87, c-daien@chu-montpellier.fr
CLAIRE DAIEN, PROFESSOR
About this study
PROMESS 1 is a multicenter cohort interventional study aiming at analyzing the factors associated with the risk of developing clinical arthritis among exposures or combinations of exposures in patients at risk of rheumatoid arthritis (RA), as they have high levels of anti-citrullinated peptides autoantibodies (ACPA ≥2 N).
The primary endpoint is the occurrence of clinical arthritis confirmed by ultrasound at two years of following for the subject's groups at risk of RA.
Read more
This may be explained by the following exposures or combinations of exposures: smoking, occupational exposure, physical activity, diet, hormonal exposure, drug exposure, trauma and psychological stress.
Other factors may also explain the occurrence of clinical arthritis:
- Other symptoms
- Comorbidities, medical history, drug exposures
- Current biology: ACPA levels, rheumatoid factor levels and isotypes, CRP levels at baseline, etc.
- Ultrasound and MRI abnormalities.
Read the detailed description
This is a multicenter interventional cohort study. The goal of this cohort is to analyze the factors associated with the risk of developing clinical arthritis, considering individual or combined exposures, in patients at high risk of rheumatoid arthritis (RA).
Four groups of adults will be included:
- Group 1: 50 subjects at very high risk of RA: ACPA≥2 N or (ACPA>N and rheumatoid factor≥2 N) + presence of clinically suspicious arthralgia (CSA criteria ≥4)
- Group 2: 50 subjects at high risk of RA: ACPA≥2 N or (ACPA>N and rheumatoid factor≥2 N) without clinically suspicious arthralgia (CSA criteria <4)
- Group 3: 25 asymptomatic subjects, 1st degree relatives of subjects with RA (negative controls)
- Group 4: 25 patients with early RA prior to any disease-modifying therapy (positive controls) Patients in the control groups will be included based on the same age and sex as patients in the risk groups (1 \& 2) in the recruiting center.
The primary endpoint is the occurrence of clinical arthritis, confirmed by ultrasound, after two years of follow-up in the at-risk RA groups (Groups 1 \& 2).
This may be explained by the following exposures or their combinations: smoking, occupational exposure, physical activity, diet, hormonal exposure, drug exposure, trauma and psychological stress...
Other factors that may contribute to the occurrence of clinical arthritis include:
- Clinical elements and questionnaires assessing the other symptoms of the individuals (PRO) (subjective clinical suspicion of arthralgia CSA, painful joints at inclusion, BMI, stool consistency, functional respiratory signs, etc.)
- Comorbidities and antecedents via CNAM pathology mapping and drug exposure via data on dispensing in towns from the SNDS
- Current biology: ACPA levels, rheumatoid factor levels and isotypes, CRP levels at baseline, etc.
- Ultrasound and MRI abnormalities.
The controls groups (groups 3\&4) will allow for a cross-sectional analysis, comparing at-risk RA subjects with healthy individuals who share the same genetic background. They will have a single visit at baseline without follow-up.
However, the at-risk RA groups (groups 1 \& 2) will have four visits (M0, M6, M12 et M24), plus an additional visit in case of suspected arthritis. In addition to routine care examinations performed in RA risk situations, subjects will undergo blood and stool sample collection at baseline and at one year.
All subjects regardless of group, will undergo the following baseline assessments: MRI of the dominant hand or painful hand, a lactulose-mannitol absorption test (to assess intestinal permeability), hair and saliva collection, a Schirmer test, and, in some centers, an induced sputum test (to assess pulmonary mucosa). Ultrasound of the hands and feet, as well as specific questionnaires assessing the exposome, will be conducted at all visits.
Exploratory objectives: blood and pulmonary immunobiological characteristics (immunophenotyping on fresh blood in selected centers); environmental exposure assessed with partial addresses (street and city names of homes and workplaces); psychological, psychiatric and psychosomatic factors. Exploratory predictive modelling (penalized regression, random forest, gradient boosting) will complement the confirmatory analyses after database lock.
- Conditions
- Rheumatoid Arthritis (RA)
- Being tested
- Blood test, Urine test, stool collection, saliva collection, Induced expectoration
- Keywords
- at-risk, ACPA, Rheumatoid arthritis, Exposome, Prediction
- Medical subject headings
- Arthritis, Rheumatoid
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Blood testBiological
A total of 90 ml of blood will be collected while fasting, using the following tubes: one PAXGene Blood RNA Tube, one PAXGene Blood DNA Tube, five 5 mL serum tubes, five 5 mL EDTA tubes and one 2 mL EDTA tube for microbiota DNA analysis.
Urine testBiological
Urine will be collected, while fasting and after the administration of lactulose/ mannitol to assess intestinal permeability.
stool collectionOther
Stool samples will be collected either at the hospital or at home using a dedicated kit.
saliva collectionOther
5 ml of saliva will be collected and saliva microbiome DNA will be collected using an OMNIgene Oral kit.
Induced expectorationOther
inhalation of salbutamol, measurement of peak expiratory flow by screening spirometry (15 min later), inhalation of a hypertonic aerosol for 3 periods of 7 min. At the end of each inhalation period, the induced sputum is collected and the peak expiratory flow is measured to prevent possible bronchospasms
Hair and nails samplingOther
Hair and nails samples will be collected.
Schirmer testOther
To assess of tear secretion
Ultrasound of hands and feetRadiation
To assess the risk of RA in high-risk subjects by evaluating for synovitis, tenosynovitis, or intermetatarsal-phalangeal bursitis.
MRI ContrastRadiation
MRI of the dominant or painful hand will be performed to assess the risk of RA in high-risk subjects.
Patient questionsOther
Self-questionnaires will assess factors such as ethnic origin, family history of RA, diet, physical activity, exposure to toxic substances, pollution, occupational exposures, psychological and clinical factors.
Dental panoramic X-rayDiagnostic test
Performed as part of routine care to assess dental health
Consultation with a psychologist in certain centersOther
The short-CTQ will be completed during this consultation, only in centers offering consultations with a psychologist.
Measurement of heart rate variability.Other
The patient will wear a belt throughout the visit 1. At the end of the day, the heart rate variability data measured by the belt will be recorded in the CRF (RR interval, heart rate variability SDNN, RMSSD, and LF/HF sympathovagal balance).
Behavioral: semi-structured psychological interview (1 h, teleconsultation)Behavioural
At W0 on V1 an affective touch perception test (15 min), self-assessment of perceived RA risk, satisfaction and impact questionnaire.
at week 26, optionally completed by an in-person session (self-drawing, Rorschach test, Thematic Apperception Test; 1 h)
| Study group | Role | What they receive |
|---|---|---|
| Group 1 | A total of 50 subjects will be recruited: individuals with ACPA≥2 N and clinically suspect arthralgia (CSA criteria ≥4) or those with ACPA≥N and rheumatoid factor≥2N along with clinically suspect arthralgia (CSA criteria ≥4). These subjects have an estimated 50% risk of progression to RA within 2 years. Receives: Biological: Blood test; Biological: Urine test; Other: stool collection; Other: saliva collection; Other: Induced expectoration; Other: Hair and nails sampling; Other: Schirmer test; Radiation: Ultrasound of hands and feet; Radiation: MRI Contrast; Other: Patient questions; Diagnostic Test: Dental panoramic X-ray; Other: Consultation with a psychologist in certain centers; Other: Measurement of heart rate variability.; Behavioral: Behavioral: semi-structured psychological interview (1 h, teleconsultation) | |
| Group 2 | A total of 50 subjects will be recruited: individuals with ACPA≥2 N who do not meet the criteria for clinically suspect arthralgia (CSA criteria <4) or those with ACPA≥N and rheumatoid factor≥2N who also do not meet the criteria for clinically suspect arthralgia (CSA criteria <4). These subjects have an estimated 30% risk of progression to RA within 2 years. Receives: Biological: Blood test; Biological: Urine test; Other: stool collection; Other: saliva collection; Other: Induced expectoration; Other: Hair and nails sampling; Other: Schirmer test; Radiation: Ultrasound of hands and feet; Radiation: MRI Contrast; Other: Patient questions; Diagnostic Test: Dental panoramic X-ray; Other: Consultation with a psychologist in certain centers; Other: Measurement of heart rate variability.; Behavioral: Behavioral: semi-structured psychological interview (1 h, teleconsultation) | |
| Group 3 | A total 25 subjects will be recruited: asymptomatic subjects (CSA criteria <4) with a family history of RA in a first-degree relative (negative controls). Receives: Biological: Blood test; Biological: Urine test; Other: stool collection; Other: saliva collection; Other: Induced expectoration; Other: Hair and nails sampling; Other: Schirmer test; Radiation: Ultrasound of hands and feet; Radiation: MRI Contrast; Other: Patient questions; Other: Consultation with a psychologist in certain centers; Other: Measurement of heart rate variability. | |
| Group 4 | A total of 25 subjects will be recruited: individuals with RA diagnosed at polyarthritis onset (diagnosis <6 months) who have not yet been treated, with ACPA≥2 N or ACPA≥N and rheumatoid factor≥2N (positive controls). Receives: Biological: Blood test; Biological: Urine test; Other: stool collection; Other: saliva collection; Other: Induced expectoration; Other: Hair and nails sampling; Other: Schirmer test; Radiation: Ultrasound of hands and feet; Radiation: MRI Contrast; Other: Patient questions; Diagnostic Test: Dental panoramic X-ray; Other: Consultation with a psychologist in certain centers; Other: Measurement of heart rate variability. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Risk of developing clinical arthritis
To analyze the factors associated with the risk of developing clinical arthritis confirmed by ultrasound among exposures or combinations of exposures in patients at high risk of RA.
Measured: From the baseline to the end of the follow-up at 2 years
Secondary outcomes (61)
Quantitative difference in Food Frequency Questionnaire (FFQ) between the 4 groups of subjects included, varying from never or rarely to daily or multiple times per day.
Measured: At baseline
Quantitative difference in National Observatory for Physical Activity and Sedentariness -Physical Activity Questionnaire (ONAPS-PAQ) expressed in MET (Metabolic Equivalent of Task) per week between the 4 groups of subjects included.
Measured: At baseline
Quantitative difference in patient-reported exposure outcome Alcohol and Substance Involvement Screening Test (ASSIST) score between the 4 groups of subjects included.
The score varies from 0 to 36 to each substance with higher score indicates greater substance-related risk and the need for stronger intervention strategies.
Measured: At baseline
Quantitative difference in Fagerström Test for Nicotine Dependence (FTND) score between the 4 groups of subjects included.
The score varies from 1 to 6 with higher score indicate greater nicotine dependence.
Measured: At baseline
Compare the exposure to pollution between the 4 groups of subjects included. "Exposure to pollution will be assessed by cross-referencing residential addresses with the Chimère database.
Measured: At baseline
Qualitative difference in a self-report integrated questionnaire for diagnosis of all functional gastrointestinal disorders in adults between the 4 groups of subjects included.
Measured: At baseline
Quantitative difference in patient-reported Francis score for Irritable Bowel Syndrome (IBS) between the 4 groups of subjects included.
The score varies from 0 to 100 with higher score means severe IBS.
Measured: At baseline
Qualitative difference in patient-reported clinical outcome of Sleep Apnea (Berlin questionnaire) between the 4 groups of subjects included.
It is composed of 3 categories of questions, if 2 or more categories are positive it means a high risk of apnea.
Measured: At baseline
Quantitative difference in Visual Analog Scale (VAS) score for patient's pain between the 4 groups of subjects included.
The score varies from 0 to 100 with higher score means worst pain possible.
Measured: At baseline
Quantitative difference in Visual Analog Scale (VAS) score for patient's fatigue between the 4 groups of subjects included.
The score varies from 0 to 100 with higher score means extreme fatigue.
Measured: At baseline
Quantitative difference in Visual Analog Scale (VAS) score for patient's disease activity between the 4 groups of subjects included.
The score varies from 0 to 100 with higher score means complete Limitation (Unable to Perform Any Activity).
Measured: At baseline
Quantitative difference in Visual Analog Scale (VAS) score for disease activity on the opinion of the physician between the 4 groups of subjects included.
The score varies from 0 to 100 with higher score means complete Limitation (Unable to Perform Any Activity).
Measured: At baseline
Quantitative difference in Pichot Fatigue Scale score between the 4 groups of subjects included.
The score varies from 0 to 32 with higher score means severe fatigue.
Measured: At baseline
Quantitative difference in State-Trait Anxiety Inventory (STAI) score between the 4 groups of subjects included.
The score varies from 20 to 80 with higher score means high anxiety.
Measured: At baseline
Quantitative difference in patient-reported outcome Posttraumatic Stress Disorder Checklist (PCL-5) score between the 4 groups of subjects included,
The score varies from 0 to 80 with higher score means very severe symptoms (Likely posttraumatic stress disorder (PTSD)).
Measured: At baseline
Quantitative difference in patient-reported outcome heath survey Short Form-12 (SF-12) version 2 with Physical Component Summary (PCS) and Mental Component Summary (MCS) scores between the 4 groups of subjects included
The mean is 50 for each score with a standard deviation of 10, a higher score means better health status.
Measured: At baseline
Quantitative difference in Insomnia Severity Index (ISI) score between the 4 groups of subjects included
The score varies from 0 to 28 with higher score means Severe insomnia.
Measured: At baseline
Quantitative difference in Pain Catastrophizing Scale (PCS) score between the 4 groups of subjects included
The score varies from 0 to 52 with higher score means High pain catastrophizing.
Measured: At baseline
Quantitative difference in Rheumatoid factor (FR) auto-antibody level between the 4 groups of subjects included.
Expressed in IU/ml (International Units per Milliliter)
Measured: At baseline
Quantitative difference Anti-Citrullinated Peptide Antibodies (ACPA) level between the 4 groups of subjects included.
Expressed in IU/ml (International Units per Milliliter).
Measured: At baseline
Quantitative difference in C-reactive protein (CRP) level between the 4 groups of subjects included.
Expressed in mg/L (milligram per liter)
Measured: At baseline
Quantitative difference in Neutrophils values between the 4 groups of subjects included.
Expressed in cells/µL (microliter)
Measured: At baseline
Quantitative difference in lymphocytes values between the 4 groups of subjects included.
Expressed in cells/µL (microliter)
Measured: At baseline
Quantitative difference in Platelets (PLT) between the 4 groups of subjects included.
Expressed in platelets/µL (microliter)
Measured: At baseline
Clinical arthritis and Clinically Suspected Arthralgias (CSA).
Assess the incidence of clinical arthritis in high-risk RA patients overall (group 1 and 2) and in subgroups according to the presence or absence of CSA and the auto-antibody profile at inclusion. The clinical arthritis is detected by the presence of joints swelling in at least 1 of the 44 joints swelling and confirmed by ultrasound.
Measured: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Visual Analog Scale (VAS) score for patient's pain between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
The score varies from 0 to 100 with higher score means worst pain possible. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Visual Analog Scale (VAS) score for patient's fatigue between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
The score varies from 0 to 100 with higher score means extreme fatigue. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Visual Analog Scale (VAS) score for patient's disease activity between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
The score varies from 0 to 100 with higher score means complete Limitation (Unable to Perform Any Activity). Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Visual Analog Scale (VAS) score for disease activity on the opinion of the physician between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
The score varies from 0 to 100 with higher score means complete Limitation (Unable to Perform Any Activity). Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Pichot Fatigue Scale score between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
The score varies from 0 to 32 with higher score means severe fatigue. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in State-Trait Anxiety Inventory (STAI) score between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
The score varies from 20 to 80 with higher score means high anxiety. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in patient-reported outcome Posttraumatic Stress Disorder Checklist (PCL-5) score between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
The score varies from 0 to 80 with higher score means very severe symptoms (Likely posttraumatic stress disorder (PTSD). Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in patient-reported outcome heath survey Short Form-12 (SF-12) version 2 with Physical Component Summary (PCS) and Mental Component Summary (MCS) scores between the patients who developed clinical arthritis during the 2-year f
The mean is 50 for each score and a standard deviation of 10, a higher score means better health status. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Insomnia Severity Index (ISI) score between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
The score varies from 0 to 28 with higher score means Severe insomnia. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Pain Catastrophizing Scale (PCS) score between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
The score varies from 0 to 52 with higher score means High pain catastrophizing. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in tender joints count between the patients who developed clinical arthritis during the 2-year follow-up and those who did not, among 44 joints across the body.
The score varies from 0 to 44 with higher score means more active inflammatory joint disease. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26, week 52 and week 104 visit
Quantitative difference in tenosynovitis count between the patients who developed clinical arthritis during the 2-year follow-up and those who did not, among 16 flexor and extensor finger's tendons.
The score varies from 0 to 44 with higher score means more active inflammatory joint disease. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26, week 52 and week 104 visit
Quantitative difference in difficulties of making a fist between the patients who developed clinical arthritis during the 2-year follow-up and those who did not. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26, week 52 and week 104 visit
Quantitative difference in tenosynovitis between the patients who developed clinical arthritis during the 2-year follow-up and those who did not detected by ultrasound. Relate this outcome to the risk of developing clinical arthritis
Measured: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Rheumatoid factor (FR) auto-antibody level between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Expressed in IU/ml (International Units per Milliliter).Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26, week 52 and week 104 visit
Quantitative difference in Anti-Citrullinated Peptide Antibodies (ACPA) level between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Expressed in IU/ml (International Units per Milliliter) Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26, week 52 and week 104 visit
Quantitative difference in C-reactive protein (CRP) level between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Expressed in mg/L (milligram per liter) Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26, week 52 and week 104 visit
Quantitative difference in Neutrophils values between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Expressed in cells/µL (microliter).Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26, week 52 and week 104 visit
Quantitative difference in lymphocytes values between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Expressed in cells/µL (microliter). Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26, week 52 and week 104 visit
Quantitative difference in Platelets (PLT) between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Expressed in platelets/µL (microliter), Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26, week 52 and week 104 visit
Proportion of patients with ultrasound synovitis in the 2 groups at high-risk of rheumatoid factor (RA) (group 1 and 2).
Detected by ultrasound in mode B and Doppler on the hand's and feet's articulations with semi-quantitative gradation according to Outcome Measures in Rheumatology (OMERACT) recommendations, between the patients who developed clinical arthritis during the 2-year follow-up and those who did not. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26, week 52 and week 104 visit
Proportion of patients with ultrasound tenosynovitis in the 2 groups at high-risk of rheumatoid factor (RA) (group 1 and 2).
Detected by ultrasound in mode B and Doppler on the hand's and feet's articulations with semi-quantitative gradation according to Outcome Measures in Rheumatology (OMERACT) recommendations, between the patients who developed clinical arthritis during the 2-year follow-up and those who did not. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline, week 26, week 52 and week 104 visit
Proportion of patients with ultrasound synovitis in the 4 groups of subjects included.
Detected by ultrasound in mode B and Doppler on the hand's and feet's articulations with semi-quantitative gradation according to Outcome Measures in Rheumatology (OMERACT) recommendations. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline
Proportion of patients with ultrasound tenosynovitis in the 4 groups of subjects included.
Detected by ultrasound in mode B and Doppler on the hand's and feet's articulations with semi-quantitative gradation according to Outcome Measures in Rheumatology (OMERACT) recommendations. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline
Quantitative difference in synovitis between the 4 groups of subjects included.
Detected by Magnetic Resonance Imaging (MRI) on the dominant hand or the most painful hand. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline
Quantitative difference in bone oedemes between the 4 groups of subjects included.
Detected by Magnetic Resonance Imaging (MRI) on the dominant hand or the most painful hand. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline
Quantitative difference in pinch between the 4 groups of subjects included.
Detected by Magnetic Resonance Imaging (MRI) on the dominant hand or the most painful hand. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline
Quantitative difference in erosion between the 4 groups of subjects included.
Detected by Magnetic Resonance Imaging (MRI) on the dominant hand or the most painful hand. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline
Quantitative difference in tenosynovitis between the 4 groups of subjects included, between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Detected by Magnetic Resonance Imaging (MRI) on the dominant hand or the most painful hand. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline
Quantitative difference in synovitis between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Detected by Magnetic Resonance Imaging (MRI) on the dominant hand or the most painful hand. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline
Quantitative difference in bone oedemes between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Detected by Magnetic Resonance Imaging (MRI) on the dominant hand or the most painful hand. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline
Quantitative difference in pinch between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Detected by Magnetic Resonance Imaging (MRI) on the dominant hand or the most painful hand. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline
Quantitative difference in erosion between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Detected by Magnetic Resonance Imaging (MRI) on the dominant hand or the most painful hand. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline
Quantitative difference in tenosynovitis between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Detected by Magnetic Resonance Imaging (MRI) on the dominant hand or the most painful hand. Relate this outcome to the risk of developing clinical arthritis.
Measured: Baseline
Analyzing heart rate variability as a risk factor for developing RA
Measurement of heart rate variability in high-risk patients (group 1 + group 2) for RA
Measured: Baseline
Analyze environmental factors associated with the risk of developing clinical arthritis.
Exposure will be assessed using partial addresses
Measured: Baseline, week 26, week 52 and week 104 visit
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Mar 2025
- Study start7 Oct 2025
- Primary completionDec 2029 (estimated)
- Study completionDec 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Rheumatoid Arthritis (RA)Studies of the same condition, open and under way.
- More trials run by University Hospital, MontpellierThe 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
- Prospective
- Enrolment
- 150 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University Hospital, Montpellier
- Sponsor type
- University, hospital or other
- Collaborators
- Nantes University Hospital, Assistance Publique Hopitaux De Marseille, University of New Orleans, Bicetre Hospital, Saint Antoine University Hospital, Groupe Hospitalier Pitie-Salpetriere, University Hospital, Brest, Assistance Publique - Hôpitaux de Paris, University Hospital, Bordeaux, Hôpital Cochin, Université Paris Cité, Hôpital Européen Marseille, University of Montpellier - Inserm 1046 - PhyMeddExp, Aix Marseille Université
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06876064
- Sponsor's protocol ID
- RECHMPL24_0015
- Other IDs
- Eudra CT/ID-RCB
- Acronym
- PROMESS_1
- Status last verified
- Sep 2026
- First submitted
- 24 Dec 2024
- Last updated
- 1 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 1 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- National Cohort of Subjects at Risk of Developing Rheumatoid Arthritis
- ClinicalTrials.gov ID
- NCT06876064
- Acronym / sponsor ID
- PROMESS_1 / RECHMPL24_0015
- Conditions
- Rheumatoid Arthritis (RA)
- Keywords
- at-risk, ACPA, Rheumatoid arthritis, Exposome, Prediction
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 150 participants (estimated)
- Lead sponsor
- University Hospital, MontpellierUniversity, hospital or other
- Collaborators
- Nantes University Hospital, Assistance Publique Hopitaux De Marseille, University of New Orleans, Bicetre Hospital, Saint Antoine University Hospital, Groupe Hospitalier Pitie-Salpetriere, University Hospital, Brest, Assistance Publique - Hôpitaux de Paris, University Hospital, Bordeaux, Hôpital Cochin, Université Paris Cité, Hôpital Européen Marseille, University of Montpellier - Inserm 1046 - PhyMeddExp, Aix Marseille Université
- Study start
- 7 Oct 2025 (actual)
- Primary completion
- Dec 2029 (estimated)
- Study completion
- Dec 2029 (estimated)
- First posted
- 14 Mar 2025 (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.
PROMESS 1 is a multicenter cohort interventional study aiming at analyzing the factors associated with the risk of developing clinical arthritis among exposures or combinations of exposures in patients at risk of rheumatoid arthritis (RA), as they have high levels of anti-citrullinated peptides autoantibodies (ACPA ≥2 N).
The primary endpoint is the occurrence of clinical arthritis confirmed by ultrasound at two years of following for the subject's groups at risk of RA.
This may be explained by the following exposures or combinations of exposures: smoking, occupational exposure, physical activity, diet, hormonal exposure, drug exposure, trauma and psychological stress.
Other factors may also explain the occurrence of clinical arthritis:
- Other symptoms
- Comorbidities, medical history, drug exposures
- Current biology: ACPA levels, rheumatoid factor levels and isotypes, CRP levels at baseline, etc.
- Ultrasound and MRI abnormalities.
Detailed description
This is a multicenter interventional cohort study. The goal of this cohort is to analyze the factors associated with the risk of developing clinical arthritis, considering individual or combined exposures, in patients at high risk of rheumatoid arthritis (RA).
Four groups of adults will be included:
- Group 1: 50 subjects at very high risk of RA: ACPA≥2 N or (ACPA>N and rheumatoid factor≥2 N) + presence of clinically suspicious arthralgia (CSA criteria ≥4)
- Group 2: 50 subjects at high risk of RA: ACPA≥2 N or (ACPA>N and rheumatoid factor≥2 N) without clinically suspicious arthralgia (CSA criteria <4)
- Group 3: 25 asymptomatic subjects, 1st degree relatives of subjects with RA (negative controls)
- Group 4: 25 patients with early RA prior to any disease-modifying therapy (positive controls) Patients in the control groups will be included based on the same age and sex as patients in the risk groups (1 \& 2) in the recruiting center.
The primary endpoint is the occurrence of clinical arthritis, confirmed by ultrasound, after two years of follow-up in the at-risk RA groups (Groups 1 \& 2).
This may be explained by the following exposures or their combinations: smoking, occupational exposure, physical activity, diet, hormonal exposure, drug exposure, trauma and psychological stress...
Other factors that may contribute to the occurrence of clinical arthritis include:
- Clinical elements and questionnaires assessing the other symptoms of the individuals (PRO) (subjective clinical suspicion of arthralgia CSA, painful joints at inclusion, BMI, stool consistency, functional respiratory signs, etc.)
- Comorbidities and antecedents via CNAM pathology mapping and drug exposure via data on dispensing in towns from the SNDS
- Current biology: ACPA levels, rheumatoid factor levels and isotypes, CRP levels at baseline, etc.
- Ultrasound and MRI abnormalities.
The controls groups (groups 3\&4) will allow for a cross-sectional analysis, comparing at-risk RA subjects with healthy individuals who share the same genetic background. They will have a single visit at baseline without follow-up.
However, the at-risk RA groups (groups 1 \& 2) will have four visits (M0, M6, M12 et M24), plus an additional visit in case of suspected arthritis. In addition to routine care examinations performed in RA risk situations, subjects will undergo blood and stool sample collection at baseline and at one year.
All subjects regardless of group, will undergo the following baseline assessments: MRI of the dominant hand or painful hand, a lactulose-mannitol absorption test (to assess intestinal permeability), hair and saliva collection, a Schirmer test, and, in some centers, an induced sputum test (to assess pulmonary mucosa). Ultrasound of the hands and feet, as well as specific questionnaires assessing the exposome, will be conducted at all visits.
Exploratory objectives: blood and pulmonary immunobiological characteristics (immunophenotyping on fresh blood in selected centers); environmental exposure assessed with partial addresses (street and city names of homes and workplaces); psychological, psychiatric and psychosomatic factors. Exploratory predictive modelling (penalized regression, random forest, gradient boosting) will complement the confirmatory analyses after database lock.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Group 1 | – | Biological: Blood test, Biological: Urine test, Other: stool collection, Other: saliva collection, Other: Induced expectoration, Other: Hair and nails sampling, Other: Schirmer test, Radiation: Ultrasound of hands and feet, Radiation: MRI Contrast, Other: Patient questions, Diagnostic Test: Dental panoramic X-ray, Other: Consultation with a psychologist in certain centers, Other: Measurement of heart rate variability., Behavioral: Behavioral: semi-structured psychological interview (1 h, teleconsultation)A total of 50 subjects will be recruited: individuals with ACPA≥2 N and clinically suspect arthralgia (CSA criteria ≥4) or those with ACPA≥N and rheumatoid factor≥2N along with clinically suspect arthralgia (CSA criteria ≥4). These subjects have an estimated 50% risk of progression to RA within 2 years. |
| Group 2 | – | Biological: Blood test, Biological: Urine test, Other: stool collection, Other: saliva collection, Other: Induced expectoration, Other: Hair and nails sampling, Other: Schirmer test, Radiation: Ultrasound of hands and feet, Radiation: MRI Contrast, Other: Patient questions, Diagnostic Test: Dental panoramic X-ray, Other: Consultation with a psychologist in certain centers, Other: Measurement of heart rate variability., Behavioral: Behavioral: semi-structured psychological interview (1 h, teleconsultation)A total of 50 subjects will be recruited: individuals with ACPA≥2 N who do not meet the criteria for clinically suspect arthralgia (CSA criteria <4) or those with ACPA≥N and rheumatoid factor≥2N who also do not meet the criteria for clinically suspect arthralgia (CSA criteria <4). These subjects have an estimated 30% risk of progression to RA within 2 years. |
| Group 3 | – | Biological: Blood test, Biological: Urine test, Other: stool collection, Other: saliva collection, Other: Induced expectoration, Other: Hair and nails sampling, Other: Schirmer test, Radiation: Ultrasound of hands and feet, Radiation: MRI Contrast, Other: Patient questions, Other: Consultation with a psychologist in certain centers, Other: Measurement of heart rate variability.A total 25 subjects will be recruited: asymptomatic subjects (CSA criteria <4) with a family history of RA in a first-degree relative (negative controls). |
| Group 4 | – | Biological: Blood test, Biological: Urine test, Other: stool collection, Other: saliva collection, Other: Induced expectoration, Other: Hair and nails sampling, Other: Schirmer test, Radiation: Ultrasound of hands and feet, Radiation: MRI Contrast, Other: Patient questions, Diagnostic Test: Dental panoramic X-ray, Other: Consultation with a psychologist in certain centers, Other: Measurement of heart rate variability.A total of 25 subjects will be recruited: individuals with RA diagnosed at polyarthritis onset (diagnosis <6 months) who have not yet been treated, with ACPA≥2 N or ACPA≥N and rheumatoid factor≥2N (positive controls). |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- The patients will be recruted during consultation or hospitalization.
Key inclusion criteria (5 listed)
- Age between 18 and 80 years old
- Group 1: Individuals with high risk of RA (ACPA ≥ 2N or ACPA ≥ N and rheumatoid factor ≥ 2N) and clinical signs of arthralgia (CSA criteria ≥ 4).
- Group 2: High-risk individuals (ACPA ≥ 2N or ACPA ≥ N and rheumatoid factor ≥ 2N) without clinical arthralgia (CSA criteria < 4).
- Group 3: First-degree relatives of RA patients (no symptoms, negative controls).
- Group 4: Newly diagnosed untreated RA patients (ACPA ≥ 2N or ACPA ≥ N and rheumatoid factor ≥ 2N) (positive controls).
Key exclusion criteria (13 listed)
- Groupe1-2-3:
- All groups:
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 |
|---|---|---|
| Blood testA total of 90 ml of blood will be collected while fasting, using the following tubes: one PAXGene Blood RNA Tube, one PAXGene Blood DNA Tube, five 5 mL serum tubes, five 5 mL EDTA tubes and one 2 mL EDTA tube for microbiota DNA analysis. | Biological | Group 1, Group 2, Group 3, Group 4 |
| Urine testUrine will be collected, while fasting and after the administration of lactulose/ mannitol to assess intestinal permeability. | Biological | Group 1, Group 2, Group 3, Group 4 |
| stool collectionStool samples will be collected either at the hospital or at home using a dedicated kit. | Other | Group 1, Group 2, Group 3, Group 4 |
| saliva collection5 ml of saliva will be collected and saliva microbiome DNA will be collected using an OMNIgene Oral kit. | Other | Group 1, Group 2, Group 3, Group 4 |
| Induced expectorationinhalation of salbutamol, measurement of peak expiratory flow by screening spirometry (15 min later), inhalation of a hypertonic aerosol for 3 periods of 7 min. At the end of each inhalation period, the induced sputum is collected and the peak expiratory flow is measured to prevent possible bronchospasms | Other | Group 1, Group 2, Group 3, Group 4 |
| Hair and nails samplingHair and nails samples will be collected. | Other | Group 1, Group 2, Group 3, Group 4 |
| Schirmer testTo assess of tear secretion | Other | Group 1, Group 2, Group 3, Group 4 |
| Ultrasound of hands and feetTo assess the risk of RA in high-risk subjects by evaluating for synovitis, tenosynovitis, or intermetatarsal-phalangeal bursitis. | Radiation | Group 1, Group 2, Group 3, Group 4 |
| MRI ContrastMRI of the dominant or painful hand will be performed to assess the risk of RA in high-risk subjects. | Radiation | Group 1, Group 2, Group 3, Group 4 |
| Patient questionsSelf-questionnaires will assess factors such as ethnic origin, family history of RA, diet, physical activity, exposure to toxic substances, pollution, occupational exposures, psychological and clinical factors. | Other | Group 1, Group 2, Group 3, Group 4 |
| Dental panoramic X-rayPerformed as part of routine care to assess dental health | Diagnostic test | Group 1, Group 2, Group 4 |
| Consultation with a psychologist in certain centersThe short-CTQ will be completed during this consultation, only in centers offering consultations with a psychologist. | Other | Group 1, Group 2, Group 3, Group 4 |
| Measurement of heart rate variability.The patient will wear a belt throughout the visit 1. At the end of the day, the heart rate variability data measured by the belt will be recorded in the CRF (RR interval, heart rate variability SDNN, RMSSD, and LF/HF sympathovagal balance). | Other | Group 1, Group 2, Group 3, Group 4 |
| Behavioral: semi-structured psychological interview (1 h, teleconsultation)At W0 on V1 an affective touch perception test (15 min), self-assessment of perceived RA risk, satisfaction and impact questionnaire. at week 26, optionally completed by an in-person session (self-drawing, Rorschach test, Thematic Apperception Test; 1 h) | Behavioural | Group 1, Group 2 |
Primary outcome
Risk of developing clinical arthritis
Time frame: From the baseline to the end of the follow-up at 2 years
To analyze the factors associated with the risk of developing clinical arthritis confirmed by ultrasound among exposures or combinations of exposures in patients at high risk of RA.
61 secondary outcomes
Quantitative difference in Food Frequency Questionnaire (FFQ) between the 4 groups of subjects included, varying from never or rarely to daily or multiple times per day.
Time frame: At baseline
Quantitative difference in National Observatory for Physical Activity and Sedentariness -Physical Activity Questionnaire (ONAPS-PAQ) expressed in MET (Metabolic Equivalent of Task) per week between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in patient-reported exposure outcome Alcohol and Substance Involvement Screening Test (ASSIST) score between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in Fagerström Test for Nicotine Dependence (FTND) score between the 4 groups of subjects included.
Time frame: At baseline
Compare the exposure to pollution between the 4 groups of subjects included. "Exposure to pollution will be assessed by cross-referencing residential addresses with the Chimère database.
Time frame: At baseline
Qualitative difference in a self-report integrated questionnaire for diagnosis of all functional gastrointestinal disorders in adults between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in patient-reported Francis score for Irritable Bowel Syndrome (IBS) between the 4 groups of subjects included.
Time frame: At baseline
Qualitative difference in patient-reported clinical outcome of Sleep Apnea (Berlin questionnaire) between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in Visual Analog Scale (VAS) score for patient's pain between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in Visual Analog Scale (VAS) score for patient's fatigue between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in Visual Analog Scale (VAS) score for patient's disease activity between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in Visual Analog Scale (VAS) score for disease activity on the opinion of the physician between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in Pichot Fatigue Scale score between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in State-Trait Anxiety Inventory (STAI) score between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in patient-reported outcome Posttraumatic Stress Disorder Checklist (PCL-5) score between the 4 groups of subjects included,
Time frame: At baseline
Quantitative difference in patient-reported outcome heath survey Short Form-12 (SF-12) version 2 with Physical Component Summary (PCS) and Mental Component Summary (MCS) scores between the 4 groups of subjects included
Time frame: At baseline
Quantitative difference in Insomnia Severity Index (ISI) score between the 4 groups of subjects included
Time frame: At baseline
Quantitative difference in Pain Catastrophizing Scale (PCS) score between the 4 groups of subjects included
Time frame: At baseline
Quantitative difference in Rheumatoid factor (FR) auto-antibody level between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference Anti-Citrullinated Peptide Antibodies (ACPA) level between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in C-reactive protein (CRP) level between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in Neutrophils values between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in lymphocytes values between the 4 groups of subjects included.
Time frame: At baseline
Quantitative difference in Platelets (PLT) between the 4 groups of subjects included.
Time frame: At baseline
Clinical arthritis and Clinically Suspected Arthralgias (CSA).
Time frame: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Visual Analog Scale (VAS) score for patient's pain between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Time frame: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Visual Analog Scale (VAS) score for patient's fatigue between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Time frame: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Visual Analog Scale (VAS) score for patient's disease activity between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Time frame: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Visual Analog Scale (VAS) score for disease activity on the opinion of the physician between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Time frame: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Pichot Fatigue Scale score between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Time frame: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in State-Trait Anxiety Inventory (STAI) score between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Time frame: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in patient-reported outcome Posttraumatic Stress Disorder Checklist (PCL-5) score between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Time frame: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in patient-reported outcome heath survey Short Form-12 (SF-12) version 2 with Physical Component Summary (PCS) and Mental Component Summary (MCS) scores between the patients who developed clinical arthritis during the 2-year f
Time frame: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Insomnia Severity Index (ISI) score between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Time frame: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Pain Catastrophizing Scale (PCS) score between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Time frame: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in tender joints count between the patients who developed clinical arthritis during the 2-year follow-up and those who did not, among 44 joints across the body.
Time frame: Baseline, week 26, week 52 and week 104 visit
Quantitative difference in tenosynovitis count between the patients who developed clinical arthritis during the 2-year follow-up and those who did not, among 16 flexor and extensor finger's tendons.
Time frame: Baseline, week 26, week 52 and week 104 visit
Quantitative difference in difficulties of making a fist between the patients who developed clinical arthritis during the 2-year follow-up and those who did not. Relate this outcome to the risk of developing clinical arthritis.
Time frame: Baseline, week 26, week 52 and week 104 visit
Quantitative difference in tenosynovitis between the patients who developed clinical arthritis during the 2-year follow-up and those who did not detected by ultrasound. Relate this outcome to the risk of developing clinical arthritis
Time frame: Baseline, week 26; week 52 and week 104 visit
Quantitative difference in Rheumatoid factor (FR) auto-antibody level between the patients who developed clinical arthritis during the 2-year follow-up and those who did not.
Time frame: Baseline, week 26, week 52 and week 104 visit
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 Oct 2026.
- Individual participant dataSharing planned: No
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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.
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 Rheumatoid Arthritis (RA), run by University Hospital, Montpellier 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 5 inclusion and 13 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: looking for participants now, as of the sponsor's last update on 1 Oct 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact CLAIRE IMMEDIATO DAIEN, PROFESSOR (00 33 6 85 40 27 87, c-daien@chu-montpellier.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Risk of developing clinical arthritis (time frame: From the baseline to the end of the follow-up at 2 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 1 Oct 2026.