Analysis Of The Influence Of Metabolic Syndrome On Treatment Efficacy With Anti-Tnf In Moderate-Severe Psoriasis In Real Clinical Practice.


It has been reported in various epidemiological studies that patients with moderate-to-severe plaque psoriasis, with or without associated psoriatic arthritis, have an increased frequency of cardiovascular risk factors, such as hypertension, obesity, type-2 diabetes mellitus (T2DM, and metabolic syndrome (MetS). The presence of endothelial dysfunction in early stages, especially in moderate-to-severe plaque psoriasis forms, could explain the higher prevalence of cardiovascular disease and mortality observed in this population. Existing evidence showing improvement in psoriasis after correcting some factors, such as obesity or hypercholesterolemia, and the reduction of certain surrogate markers of cardiovascular risk with different modalities of psoriasis treatment suggest a biological interaction between the two diseases beyond mere epidemiological association. Recently published results support this hypothesis and suggest that the link between psoriasis and cardiovascular disease could be the existence of an inflammatory state in different organs, including skin, joints, adipose and hepatic tissue, and vascular endothelium (16). Patients with MetS have an increased risk of developing T2DM and cardiovascular disease. This syndrome is characterized by the association of an adipose tissue inflammatory state and diminished sensitivity to insulin. In recent years, a new mechanism participating in the development of MetS has been added: the Wnt signaling pathway. Polymorphisms in genes of the Wnt signaling pathway have been associated with metabolic abnormalities that predispose to cardiovascular disease, the development of moderate-to-severe plaque psoriasis, with or without associated psoriatic arthritis, and response to treatment with anti-TNF-alpha.

This study aims to describe the cardiovascular risk factors of a Spanish population of patients with moderate-to-severe plaque psoriasis, with or without associated psoriatic arthritis,treated with anti-TNF under routine clinical practice conditions. Possible differences in efficacy relative to the presence or absence of criteria of metabolic syndrome will be analyzed. Similarly, we will explore the role of markers of inflammatory activity and genetic polymorphisms in the Wnt pathway in predicting response to treatment during the first year.


Study Type

  • Study Type: Observational
  • Study Design
    • Time Perspective: Cross-Sectional
  • Study Primary Completion Date: April 2014

Detailed Description

1. Eligibility criteria:

1.1. Inclusion criteria:

1. -Age >18 ys.

2. -Male and female.

3. -Moderate-to-severe psoriasis vulgaris, with or without psoriatic arthritis.

4. -Treated with anti-TNF drugs (infliximab, etanercept, adalimumab). 1.2. Exclusion criteria:

1. -Enrolled in another clinical trial.

2. -Lack of clinical information at the hospital database.

2. Objectives:

2.1. Primary objective: Evaluate the efficacy of anti-TNF- drugs in the treatment of patients with moderate-to-severe plaque psoriasis, with or without associated psoriatic arthritis, in terms of the presence or absence of cardiovascular risk factors, including metabolic syndrome.

2.2. Secondary objectives:

- 2.2.1. Analyze the possible modulatory role of genetic factors, such as Wnt pathway's gene polymorphisms, and other nongenetic factors on responsiveness to treatment with anti-TNF drugs in the overall study population and in the subgroup of patients with metabolic syndrome.

- 2.2.2. Describe the cardiovascular risk factors in patients with moderate-to-severe plaque psoriasis, with or without associated psoriatic arthritis, treated with anti-TNF- in the Spanish population under routine clinical practice conditions.

Arms, Groups and Cohorts

  • Non-Metabolic Syndrome
    • Patients without Metabolic Syndrome criteria (OMS).
  • Metabolic Syndrome
    • Patients with Metabolic Syndrome criteria (OMS).

Clinical Trial Outcome Measures

Primary Measures

  • Role of Metabolic Syndrome on anti-TNF-drug efficacy.
    • Time Frame: After one year of treatment
    • Evaluate the efficacy of anti-TNF-drugs in themoderate-to-severe plaque psoriasis, with or without associated psoriatic arthritis, in terms of the presence or absence of cardiovascular risk factors, including metabolic syndrome.

Secondary Measures

  • Effect of ‘Wnt pathway’ genetic polymorphisms on anti-TNF-drug efficacy
    • Time Frame: First year of treament
    • Analyze the possible modulatory role of genetic factors, such as Wnt polymorphisms, and nongenetic factors on responsiveness to treatment with anti-TNF drugs in the overall study population and in the subgroup of patients with metabolic syndrome.

Participating in This Clinical Trial

Inclusion Criteria

  • Moderate-to-severe psoriasis treated >1 ys with anti-TNFalpha drugs
  • Age >18 ys/<80 ys
  • With or without psoriatic arthritis

Exclusion Criteria

  • Enrolled in another trial
  • Lack of clinical information
  • Pregnant

Gender Eligibility: All

Minimum Age: 18 Years

Maximum Age: 80 Years

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • Juan Ruano
  • Collaborator
    • Pfizer
  • Provider of Information About this Clinical Study
    • Sponsor-Investigator: Juan Ruano, M.D., Ph.D., Ms.C. – Hospital Universitario Reina Sofia de Cordoba
  • Overall Official(s)
    • Juan Ruano, M.D., Ph.D., Ms. C., Principal Investigator, Departament of Dermatology. Reina Sofia University Hospital.


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