Ankylosing Spondylitis and Antiphospholipid Antibodies

NCT ID: NCT02809300

Last Updated: 2016-06-23

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-11-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The main objective is to evaluate the prevalence of anti-phospholipid antibodies (APLA) in patients with ankylosing spondylitis (AS).

The secondary objectives are: (1) To determine whether the presence of these antibodies is symptomatic (thrombosis or not); (2) Identify a possible relationship between the presence of APLA and a particular form of SA (axial or peripheral); (3) To determine whether the presence of APLA is more frequent in patients receiving anti-tumor necrosis factor (TNF) alpha therapy.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Methods:

Experimental design: longitudinal study prospective in a single center.

The Ankylosing Spondylitis Assesment Study (ASAS) criteria are: (1) age \<45 years, back pain ≥ 3 months, sacroiliitis on imaging and ≥ 1 associated minor criterion, or (2) HLA B27 positive and ≥ 2 minor criteria.

Minor criteria are: inflammatory back pain, arthritis, enthesitis, uveitis, Dactylitis, psoriasis, Crohn's disease, good clinical response to NSAIDs, family history of Human Leukocyte Antigen HLA B27 and inflammatory syndrome.

Plan Investigation:

Patients in the study will be seen first in consultation to gather the necessary information: history taking (including venous and arterial embolic events and obstetric history), the usual treatment, ASAS criteria of therapeutic AS, current and previous, comprehensive physical examination.

APLA will be measured at baseline and at least 3 months if initially positive.

OUTCOME:

The primary endpoint is the presence or absence of APLA: anti-cardiolipin antibodies (CLA) immunoglobulin M (IgM) or immunoglobulin G (IgG), circulating anticoagulant lupus (CCA), anti-beta2 glycoprotéine1 antibodies (β2GP1A) IgM or IgG.

The secondary endpoints are:

* The presence of thrombosis (past or present) or obstetrical accident (anterior)
* Relationship between the presence of APLA and a particular form of AS (axial or peripheral)
* Relationship between the presence of APLA and anti-TNF alpha therapy

Calendar:

The expected study duration is 16 months.

Statistical Analysis Plan A descriptive analysis will be performed. The variables are described by their number and percentage; quantitative variables are described by their mean and standard deviation. A calculation of the prevalence of APLA will be made. Univariate analysis will be performed for the secondary objectives by the Chi 2 test or Fisher exact test according to the application conditions.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Ankylosing Spondylarthritis

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

ankylosing spondylarthritis

Group Type EXPERIMENTAL

blood collection

Intervention Type BIOLOGICAL

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

blood collection

Intervention Type BIOLOGICAL

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* older than 18 years
* with SA according to ASAS criteria
* followed in the Internal Medicine Department of the REIMS University Hospital
* who have given their consent
* affiliated to social security insurance

Exclusion Criteria

* minor patients
* patients with autoimmune disease (except the inflammatory bowel disease)
* cancer
* coagulation disorders
* anticoagulant treatment (anticoagulation out for events history thrombus embolism)
* pregnant women
* patients protected by law
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

CHU de Reims

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Chu Reims

France, Reims, France

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

France

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Pauline ORQUEVAUD

Role: CONTACT

326832465 ext. 33

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Damien JOLLY

Role: primary

326788472 ext. 33

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

PA15075

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.