Anti-psoriatic Effect of TL01 Light Therapy

March 24, 2016 updated by: University of Aberdeen

Studying the Effect of Narrow Band Ultraviolet B Phototherapy on Skin Dendritic (DCs) Cells in Psoriasis Patients

This is a pilot study to investigate the effect of TL01 narrow band UVB therapy on the resident dermal dendritic cells characterized by expression of CD1c and CD141. These cells were reported to have a role in induction of tolerogenic regulatory T cells and production of IL-10. The investigators proposed to investigate the effect of NB-UVB on these subsets of cells after two weeks of treatment to provide better understanding of the mechanism of action of light treatment.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Six patients with plaque psoriasis were recruited from the phototherapy unit. These patients were referred by their dermatologist to receive narrow-band UVB (TL01) light treatment. Two 6 mm lesional skin punch biopsies were taken at baseline and 2 weeks after commencing the light treatment to study the effect of light on innate immune cells involved in psoriasis pathogenesis.

Study Type

Interventional

Enrollment (Actual)

6

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
      • Aberdeen, United Kingdom, AB25 2zb
        • University of Aberdeen

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male and female psoriasis patients in whom the decision to treat with NB-UVB therapy, as part of their routine clinical care, has been taken by their dermatologist in the age range of 18-70 years.

Exclusion Criteria:

  • patients currently on antipsoriatic treatment.

    • Patients with immunosuppressive diseases
    • Patients on immunosuppressive therapies
    • Pregnant or lactating female patients
    • Patients unable to provide a written consentProcedure

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: TL01 light treatment
routine treatment with a CE marked device that has been used for this disease for many years
Device: TL01 light treatment
Patients received treatment in TL01 cabinet three sessions weekly according to a standard escalating protocol based on minimal erythema dose. Standard dose ranges between 0.55 and 3.13J/cm2.
Other Names:
  • Waldmnn Gmbh cabinet

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
determination of the effect of TL01 NB-UVB on numbers of CD1c and CD141 cells
Time Frame: 3 months
no adverse events recorded after two weeks of TL01 treatment
3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Aberdeen

Collaborators

NHS Grampian

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2014

Primary Completion (Actual)

December 1, 2014

Study Completion (Actual)

December 1, 2014

Study Registration Dates

First Submitted

March 6, 2015

First Submitted That Met QC Criteria

November 4, 2015

First Posted (Estimate)

November 6, 2015

Study Record Updates

Last Update Posted (Estimate)

March 25, 2016

Last Update Submitted That Met QC Criteria

March 24, 2016

Last Verified

March 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2/044/14

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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