BMI and Ultrasound/Clinical Assessments of RA Disease Activity

NCT ID: NCT03004651

Last Updated: 2018-05-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

121 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-03-03

Study Completion Date

2018-02-20

Brief Summary

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Comparison of the level of agreement between Power Doppler ultrasound measured number of synovitis (≥ grade 1 on a semi-quantitative scale) and clinically defined number of swollen joints in obese (i.e. BMI\>30) versus normally weighted RA patients.

Detailed Description

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Clinical evaluation of synovitis in rheumatoid arthritis (RA) is difficult in obese and overweighted patients, due to the fat pad located around the joint, that can over- or under estimate the number of joints regarded as swollen by clinical examination. RA in obese and overweighted patients has several distinctive characteristics as compared to the disease observed in normally weighted subjects: diease activity (assessed by composites scores such as Disease Activity Score (DAS28) or Simple Disease Activity Index (SDAI)) is higher, while response to treatment and severity (asessed by radiographic progression) are lower.

Objectives:

Primary end point: Comparison of the level of agreement between the number of joints considered abnormal by Power Doppler ultrasound synovitis (≥ grade 1 on a semi-quantitative scale) and clinical examination (swollen joint count (SJC) as componant of SDAI) in obese (i.e. BMI\>30) versus normally weighted RA patients.

Secondary end points :

* Comparison of the level of agreement between clinical and ultrasound findings in overweighted versus normally weighted patients, when joint count evaluation is based on another composite index ((DAS28-CRP et DAS44-CRP), based on the number of tender joints, and based on a joint by joint evaluation
* Comparison of agreement between obese and non obese
* Evaluation of the impact of other factors than BMI on the level of agreement between Power Doppler ultrasound defined number of synovitis and clinically defined swollen joint count
* Reliability between Ultrasound and clinical examination across the different investigation centers Study design: prospective multicenter observational study Inclusion criteria: RA patients fulfilling ACR/EULAR 2010 criteria Exclusion criteria: patient simultaneously included in another study with blinded treatment; Steinbrocker class IV patients Outcome measure : Level of agreement between SJC and power Doppler US synovitis

Conditions

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Obsessional Erotomania

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Obese Patients

Power Doppler ultrasound on obese patients with PR comparating with a clinical evaluation (swollen joint count (SJC) as componant of SDAI)

Power Doppler ultrasound

Intervention Type OTHER

Mesure of synovitis (≥ grade 1 synovitis on a semi-quantitative scale)

Clinical evaluation

Intervention Type OTHER

swollen joint count (SJC) as componant of SDAI

Non obese patients

Power Doppler ultrasound on non obese patients with PR comparating with a clinical evaluation (swollen joint count (SJC) as componant of SDAI)

Power Doppler ultrasound

Intervention Type OTHER

Mesure of synovitis (≥ grade 1 synovitis on a semi-quantitative scale)

Clinical evaluation

Intervention Type OTHER

swollen joint count (SJC) as componant of SDAI

Interventions

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Power Doppler ultrasound

Mesure of synovitis (≥ grade 1 synovitis on a semi-quantitative scale)

Intervention Type OTHER

Clinical evaluation

swollen joint count (SJC) as componant of SDAI

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* RA patients fulfilling ACR/EULAR 2010 criteria

Exclusion Criteria

* Patient simultaneously included in another study with blinded treatment; Steinbrocker class IV patients, pregnancy.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Pitié-Salpêtrière Hospital

OTHER

Sponsor Role collaborator

Hospital Ambroise Paré Paris

OTHER

Sponsor Role collaborator

Nantes University Hospital

OTHER

Sponsor Role collaborator

Rennes University Hospital

OTHER

Sponsor Role collaborator

University Hospital, Grenoble

OTHER

Sponsor Role collaborator

CHU Brest Hôpital La Cavale Blanche

UNKNOWN

Sponsor Role collaborator

Hospital Purpan

OTHER

Sponsor Role collaborator

Centre Hospitalier Lyon Sud

OTHER

Sponsor Role collaborator

Central Hospital, Nancy, France

OTHER

Sponsor Role collaborator

Centre Hospitalier de la côte Basque

OTHER

Sponsor Role collaborator

University Hospital, Montpellier

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Gaël MOUTERDE, PH

Role: PRINCIPAL_INVESTIGATOR

CHU de Montpellier

Locations

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University Regional Hospital Lapeyronie

Montpellier, Languedoc-Roussillon, France

Site Status

Countries

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France

Other Identifiers

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9742

Identifier Type: -

Identifier Source: org_study_id

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