Use of Serum M2BP and MSUS to Predict Arthritis in Psoriatic Patients

Study Purpose

Aims of the study: 1. Measurement of serum level of Mac 2 binding protein among patients with psoriasis, psoriatic arthritis and subclinical psoriatic arthritis compared with healthy individuals. 2. Evaluation of MSUS findings in patients with PsA and subclinical psoriatic arthritis. 3. Evaluation of the role of serum level of Mac 2 binding protein and MSUS in predicting arthritis among psoriatic patients.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.

An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.

Searching Both is inclusive of interventional and observational studies.

Eligible Ages 18 Years - 75 Years
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

cutaneous psoriasis Psoriatic arthritis Subclunical psoriatic arthritis.

Exclusion Criteria:

any history of liver diseases non-alcoholic fatty liver, viral hepatitis, human immunodeficiency virus (HIV), autoimmune rheumatic disease other than psoriasis and PSA malignancy.

Trial Details

Trial ID:

This trial id was obtained from, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.


Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Assiut University
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Safaa Mahran
Principal Investigator Affiliation Assiut University
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Overall Status Not yet recruiting

The disease, disorder, syndrome, illness, or injury that is being studied.

Additional Details

Psoriasis is a quite common chronic, inflammatory immune-mediated skin disease affecting about 2% of the population . Also psoriasis is a strong risk factor for the development of several comorbidities of which the most common is psoriatic arthritis (PsA). The presence of cutaneous psoriasis indicates a high risk for developing PsA. Studies conducted in dermatology clinics have shown a high prevalence of undiagnosed PsA in psoriasis patients , therefore identifying soluble biomarkers for PsA in psoriasis patients may help in early diagnosis, and thereby prevent disability and improve quality of life . Mac 2 binding protein [M2BP] is thought to be a marker of synovial cell activation and joint destruction .M2BP may be involved in the pathogenesis of PsA . Recently, with the introduction of new medications and wider use of musculoskeletal ultrasound (US) imaging in clinical practice, the possibility of earlier US diagnosis in patients with psoriasis in the pre-clinical phase of PsA has been examined.

Arms & Interventions


: Group 1

45 patients with cutaneous psoriasis with no musculoskeletal manifestations.

: Group 2

45 patients with psoriatic arthritis fulfilling CASPAR criteria of PsA

: Group 3

45 patients with subclinical psoriatic arthritis (patients with cutaneous psoriasis and musculoskeletal manifestations but not fulfilling CASPARcriteria of PsA).

: Group 4

45 sex and age matched healthy controls


Diagnostic Test: - serum level of Mac 2 binding protein

Serum levels of Mac 2 binding protein will be measured for all the study subjects using Enzyme-Linked Immuno sorbent Assay (ELISA). 2 ml of venous blood will be collected from patients and controls under complete aseptic conditions in a plain tube. Sample will be allowed to clot for 15-30 min at room temperature and then centrifuged at 2500 rpm for 10-15 min. Serum will be separated and stored at -20 C or lower till time of assessment.

Device: - musculoskeletal ultrasound

MSUS examination will be performed for patients of all groups and control group.Gray scale (GSUS) and power Doppler (PDUS) at joints levels and entheses will be performed with the same transducer of My Lab Seven Crystalline esaote machine.

Contact Information

This trial has no sites locations listed at this time. If you are interested in learning more, you can contact the trial's primary contact:

Sylvia Victor

[email protected]


For additional contact information, you can also visit the trial on

The content provided on clinical trials is for informational purposes only and is not a substitute for medical consultation with your healthcare provider. We do not recommend or endorse any specific study and you are advised to discuss the information shown with your healthcare provider. While we believe the information presented on this website to be accurate at the time of writing, we do not guarantee that its contents are correct, complete, or applicable to any particular individual situation. We strongly encourage individuals to seek out appropriate medical advice and treatment from their physicians. We cannot guarantee the availability of any clinical trial listed and will not be responsible if you are considered ineligible to participate in a given clinical trial. We are also not liable for any injury arising as a result of participation.