Assessing the Long Term Effectiveness and Safety of Biotherapies in the Treatment of Cutaneous Psoriasis

Study Purpose

PSOBIOTEQ is a national multicentric prospective cohort of cutaneous psoriasis patients receiving systemic treatment (biotherapy or DMARDs) for moderate to severe cutaneous psoriasis. It is resulting from the merging of two studies that share the same study population but address different objectives: PSOBIO, developed by academic dermatologists and epidemiologists and supported by the National Drug Agency (AGENCE NATIONALE DE SECURITE DU MEDICAMENT ET DES PRODUITS DE SANTE,ANSM) and the ministry of health (PHRC 2009) focusing on safety issues, and Pso-TEQ, developed by industrials at the request of the French Transparency Commission (HAUTE AUTORITE DE SANTE) focusing on utilisation issues. The overall general objective of PSOBIO is to assess "in real life" the safety and efficacy of biotherapies in the treatment of cutaneous psoriasis in comparison with major conventional systemic therapy while Pso-TEQ has a descriptive objective concerning the modalities of use of biological therapies "in real life" and long-term benefit.

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 and Over
Gender All
More Inclusion & Exclusion Criteria

Inclusion criteria:

  • - Patients aged 18 years.
  • - Having been informed of the objectives and conduct of the research and having signed a written informed consent to participate.
  • - Consulting or being hospitalized for cutaneous psoriasis (clinical diagnosis) justifying the prescription of a major systemic therapy and for whom cutaneous psoriasis is the main reason for systemic treatment and belonging to one of the two following groups: - Patients exposed to a major conventional systemic therapy (methotrexate or cyclosporine, excluding biotherapies) since at least 3 months and for which there are no plans to institute treatment with biotherapy in the next 6 months : non-exposed group.
  • - Patients exposed to a biological therapy (infliximab, adalimumab, etanercept, ustekinumab and other biotherapy entering the market) : exposed group.

Exclusion criteria:

  • - Patients for whom cutaneous psoriasis is not the main reason for systemic treatment: treatment justified by psoriatic arthritis, concomitant Crohn's disease .
  • - Patients unable to comply with the planned cohort monitoring or whose follow-up is expected to be difficult.
  • - Patient for whom the treatment given at baseline cannot be identified (Patient participating to a double-blind trialinvolving biotherapies for example).

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.

Assistance Publique - Hôpitaux de Paris
Principal Investigator

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

Olivier Chosidow, Md, Phd
Principal Investigator Affiliation Assistance Publique - Hôpitaux de Paris
Agency Class

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

Overall Status Recruiting
Countries France

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

Additional Details

PSOBIOTEQ is a national multicentric prospective cohort, including patients receiving systemic treatment (biotherapy or DMARDs) for moderate to severe cutaneous psoriasis. The exposure of interest is the exposure to a biological therapy: infliximab, adalimumab, etanercept, ustekinumab and other biotherapy entering the market. The nature of the systemic treatment as well as its administration modalities are defined by the investigator according to usual practice. All dermatology departments located in the French metropolitan area and using biotherapies as treatment of cutaneous psoriasis will be solicited for participation to the cohort. The inclusion will last at least 3 years with a follow-up of at least 5 years for each patient (8 years maximum), with a 6 month periodicity for the data collection (complying with good clinical practice for these patients). Follow-up duration may be extended in the case of the identification of safety signals in the early years. Each study within the cohort has its specific endpoints according to its specific objectives but the whole data required will be collected at the same time for both studies then registered in a single database (eCRF). The statistical analyses will be performed by the clinical investigation and epidemiology center (INSERM CIE 801) of BICHAT hospital's department of epidemiology and clinical research. 2 636 patients will be included with the following distribution:.

  • - Non-exposed group: 1200 patients.
  • - Exposed group: 1436 patients (naive or not) with at least 1200 patients naive for biotherapy.

Arms & Interventions


: Exposed group


: Non-exposed group

Major conventional systemic therapy (methotrexate or cyclosporine)


Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

International Sites

Henri Mondor Hospital, Creteil, ILE DE France, France




Henri Mondor Hospital

Creteil, ILE DE France,

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.