Narrowband Ultraviolet B Versus Narrowband Ultraviolet B Plus Ultraviolet A1 for Atopic Eczema

November 5, 2020 updated by: University of Dundee

A Randomised Assessor-blinded Study to Compare Narrowband Ultraviolet B With Combined Narrowband Ultraviolet B and Ultraviolet A1 for Atopic Eczema

Narrowband ultraviolet B phototherapy is the "standard" phototherapy for atopic eczema; ultraviolet A1 is sometimes used but is not a widely available treatment. We do not know the most important chromophores in treating atopic eczema; in which phototherapy is thought to work by improving epidermal barrier function, having beneficial effects on skin microbiome and local immunosuppression. It seems plausible that there are several chromophores and that 'targetting' several at once with different wavebands should help and for severe eczema that has not responded adequately to narrowband UVB or ultraviolet A1 alone the combination is sometimes used. This study is to test if the combination is moderately to greatly more effective than narrowband ultraviolet B monotherapy amongst patients referred for any form of first-line phototherapy for atopic eczema.

Study Overview

Detailed Description

Narrowband ultraviolet B phototherapy is the "standard" phototherapy widely used for atopic eczema; ultraviolet A1 is sometimes used but is not a widely available treatment. We do not know the most important chromophores in treating atopic eczema; in which phototherapy is thought to work by improving epidermal barrier function, having beneficial effects on skin microbiome and local immunosuppression.

It seems plausible that there are several chromophores (the molecules that absorb the ultraviolet photons to set in chain the effects we are aiming for) and that 'targetting' several chromophores at once with different wavebands should help. For severe eczema that has not responded adequately to narrowband UVB or ultraviolet A1 alone the combination is sometimes used in the few centres where UVA1 is available.

This study is to test if the combination is moderately to greatly more effective than narrowband ultraviolet B monotherapy amongst patients referred for any form of first-line phototherapy for atopic eczema.

Study Type

Interventional

Enrollment (Actual)

39

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

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

12 years and older (ADULT, OLDER_ADULT, CHILD)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients with atopic eczema as diagnosed by a dermatologist, defined according to the UK Working Party diagnostic criteria, considered for any form of whole body phototherapy
  • Age 12 years and above
  • Able to understand and comply with protocol requirements and treatment visits, instructions and protocol stated restrictions
  • Provision of written informed consent in accordance with the Scottish Children's Network consent guidance and standard operating procedure (SOP) for subjects aged 12-15 years
  • Provision of written informed consent (subjects age 16 years and over)

Exclusion Criteria:

  • Unable to provide written informed consent in accordance with the Scottish Children's Network consent guidance and SOP
  • Unable to provide written informed consent (subjects age 16 years and over)
  • Currently being treated, or treated within the past 2 weeks, with systemic immunosuppressive therapy
  • Current use of drugs known to cause photosensitivity
  • Phototherapy, photochemotherapy, or sunbed use in the preceding 3 months
  • Known abnormal photosensitivity
  • Previous history of skin cancer
  • Participation in another research study within the past three months

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: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: SINGLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: NB-UVB monotherapy
Narrowband ultraviolet B monotherapy will be used
NB-UVB combined with UVA1
Active Comparator: NB-UVB + UVA1
Narrowband ultraviolet B combined with ultraviolet A1 phototherapy will be used
NB-UVB combined with UVA1

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in EASI (eczema severity score) - proportions reaching 50% reduction
Time Frame: From beginning to end of treatment (25 weeks)
observer-assessed eczema severity
From beginning to end of treatment (25 weeks)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
POEM (patient orientated eczema measure)
Time Frame: 26 weeks after treatment completion
patient-assessed eczema severity
26 weeks after treatment completion

Collaborators and Investigators

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

Collaborators

Investigators

  • Principal Investigator: Robert S Dawe, NHS Tayside and University of Dundee

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 (Actual)

August 1, 2016

Primary Completion (Actual)

August 26, 2020

Study Completion (Actual)

August 26, 2020

Study Registration Dates

First Submitted

August 4, 2016

First Submitted That Met QC Criteria

September 23, 2016

First Posted (Estimate)

September 26, 2016

Study Record Updates

Last Update Posted (Actual)

November 6, 2020

Last Update Submitted That Met QC Criteria

November 5, 2020

Last Verified

November 1, 2020

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

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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