HI-Light Pilot Trial for Vitiligo: Hand Held NB-UVB for Early or Focal Vitiligo at Home

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
University of Nottingham
ClinicalTrials.gov Identifier:
NCT01478945
First received: November 15, 2011
Last updated: August 22, 2013
Last verified: August 2013
  Purpose

This study is a small pilot randomised controlled trial (RCT) comparing hand-held NB-UVB light devices with placebo devices. These devices will be used by the participants to treat their vitiligo at home for a period of four months. The main purpose of the trial is to provide feasibility data that can be used to inform the design of a future multi-centre RCT of these devices. Two hand-held UVB devices with similar manual operating system are being tested during this pilot study. This trial will help the investigators to establish which device is likely to be best for the main trial.

Participants will be approached in a variety of ways (through secondary care, primary care and through direct advertising). Potential participants who contact the co-ordinating centre expressing an interest in the trial will be given more information about the trial, checked for preliminary eligibility, and sent an appointment for a screening visit at the closest recruiting hospital (Nottingham or Leicester).

This screening visit will be conducted by a research nurse, but a dermatologist will also be present in order to confirm the diagnosis of vitiligo and to confirm the participant's suitability for UVB treatment at home. If eligible and willing to take part in the trial, participants will provide written informed consent and baseline data will be collected. In order to define the starting dose to be used when treating the vitiligo, a minimum erythema dose (MED) test will be conducted.

An educational session will be provided by the research nurse outlining how to use the devices, how to assess side-effects of the treatment and how to complete the treatment diary. It is anticipated that the screening visit and educational session will take place on the same day and may take up to 1.5 hours.

On the following day, a brief visit to the hospital will be required in order to examine the skin and read the MED results (if more convenient, the educational session may be delivered at this time). Once this has been done, participants will be given the devices to use at home - treatment is applied 3 times per week on alternate days. They will be followed up by telephone at week 1, week 2 and week 12 - in order to provide support and to monitor side-effects. Participants will be asked to keep a treatment diary that records when the treatment has been used and records side-effects experienced. Emergency contact details will be provided in case of urgent medical need.

Participants will continue with treatment at home for the 16-week trial period. Two further hospital visits will take place in order to record outcome data


Condition Intervention
Vitiligo
Device: 311 nm NB-UVB light

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator, Outcomes Assessor)
Official Title: Pilot Randomised Controlled Trial of Hand Held NB-UVB for the Treatment of Focal or Early Vitiligo at Home

Resource links provided by NLM:


Further study details as provided by University of Nottingham:

Primary Outcome Measures:
  • Proportion of eligible participants, willing to be randomised. [ Time Frame: 4 to 6 months ] [ Designated as safety issue: No ]
    To establish the proportion of eligible participants and their willingness to be randomised to home NB-UVB


Secondary Outcome Measures:
  • Number of participants accepting the initial invitation to participate [ Time Frame: 4 to 6 months ] [ Designated as safety issue: No ]
  • Proportion of participants fulfilling trial eligibility criteria [ Time Frame: 4 to 6 months ] [ Designated as safety issue: No ]
  • Proportion of participants adhering to the treatment protocol [ Time Frame: 4 months ] [ Designated as safety issue: No ]
    To establish participants' adherence in using home phototherapy

  • Proportion of participants (or their parent/legal guardian) who are satisfied with the treatment and the hand held units. [ Time Frame: 4 months ] [ Designated as safety issue: No ]
    To establish participants' satisfaction in using home phototherapy

  • Proportion of participants for whom the blinding of the assessor and the allocated group is maintained [ Time Frame: 4 months ] [ Designated as safety issue: No ]
    To assess success of blinding of both participants and outcome assessors by using an identical placebo unit with visible light fluorescence bulb instead of NB-UVB bulb.

  • Incidence of NB-UVB short term adverse events [ Time Frame: 4 months ] [ Designated as safety issue: Yes ]

    To manualise the treatment intervention, i.e. prepare package educating participants in how to use the intervention and to deal with possible side effects.

    To establish possible short term side effects i.e. if the device is suitable for home use with limited medical supervision


  • Outcome measures for the main large trial will also be tested. These will include: repigmentation rate of vitiliginous lesions, cessation of spreading of vitiligo, impact on the quality of life of participants. [ Time Frame: 4 months ] [ Designated as safety issue: No ]
    To define and test the primary and secondary outcome measures and the methods of data collection for the main RCT


Enrollment: 29
Study Start Date: February 2012
Study Completion Date: April 2013
Primary Completion Date: September 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Dermfix 1000 active 311 nm NB-UVB

Active hand held NB-UVB unit:

Manual device administering NB-UVB

Device: 311 nm NB-UVB light

Narrowband UVB is now the most common form of phototherapy used to treat skin diseases. Narrow-band refers to a specific wavelength of ultraviolet (UV) radiation, 311 to 312 nm. Hospital NB-UVB usually involves whole body cabinets suitable for extensive, generalised vitiligo i.e. large or multiple lesions. Usually the whole body is exposed to the UVB for a short time (seconds to minutes). NB-UVB is also used in the treatment of many other skin conditions including psoriasis and eczema.

Hand held phototherapy units use the same lamp as the whole body units (TLO1) but only suitable for the treatment of smaller areas of skin i.e. early and focal lesions of vitiligo.

Early reports showed that these units are also safe and effective for the treatment of psoriasis of the scalp.

Other Name: NB-UVB UV NB 311 UVTLO1
Active Comparator: Waldmann active 311 nm NB-UVB

Active hand held NB-UVB unit:

Manual device administering NB-UVB (Waldmann)

Device: 311 nm NB-UVB light

Narrowband UVB is now the most common form of phototherapy used to treat skin diseases. Narrow-band refers to a specific wavelength of ultraviolet (UV) radiation, 311 to 312 nm. Hospital NB-UVB usually involves whole body cabinets suitable for extensive, generalised vitiligo i.e. large or multiple lesions. Usually the whole body is exposed to the UVB for a short time (seconds to minutes). NB-UVB is also used in the treatment of many other skin conditions including psoriasis and eczema.

Hand held phototherapy units use the same lamp as the whole body units (TLO1) but only suitable for the treatment of smaller areas of skin i.e. early and focal lesions of vitiligo.

Early reports showed that these units are also safe and effective for the treatment of psoriasis of the scalp.

Other Name: NB-UVB UV NB 311 UVTLO1
Sham Comparator: Dermfix 1000 placebo
Manual placebo hand held NB-UVB unit
Device: 311 nm NB-UVB light

Narrowband UVB is now the most common form of phototherapy used to treat skin diseases. Narrow-band refers to a specific wavelength of ultraviolet (UV) radiation, 311 to 312 nm. Hospital NB-UVB usually involves whole body cabinets suitable for extensive, generalised vitiligo i.e. large or multiple lesions. Usually the whole body is exposed to the UVB for a short time (seconds to minutes). NB-UVB is also used in the treatment of many other skin conditions including psoriasis and eczema.

Hand held phototherapy units use the same lamp as the whole body units (TLO1) but only suitable for the treatment of smaller areas of skin i.e. early and focal lesions of vitiligo.

Early reports showed that these units are also safe and effective for the treatment of psoriasis of the scalp.

Other Name: NB-UVB UV NB 311 UVTLO1

  Hide Detailed Description

Detailed Description:

This study is a pilot trial to determine the feasibility of conducting a subsequent large multi-centre RCT.

The objectives of this pilot trial are:

Primarily:

  1. To establish the proportion of eligible participants and their willingness to be randomised to home NB-UVB

    Secondarily:

  2. To establish participants' adherence and satisfaction in using home phototherapy
  3. To assess success of blinding of both participants and outcome assessors by using an identical placebo unit with visible light fluorescence bulb instead of NB-UVB bulb.
  4. To establish possible short term side effects i.e. if the device is suitable for home use with limited medical supervision
  5. To manualise the treatment intervention, i.e. prepare package educating participants in how to use the intervention and to deal with possible side effects.
  6. To define and test the primary and secondary outcome measures and the methods of data collection for the main RCT

Trial Configuration:

Parallel groups-Three arms study

  1. Group A: active hand held NB-UVB unit (Dermfix 1000)
  2. Group B: active hand held NB-UVB unit (Waldmann)
  3. Group C: placebo hand held NB-UVB unit (placebo Dermfix 1000) The allocation to the active or placebo group will be 2:1. This trial configuration will reflect the participants' allocation to active and placebo groups in the main RCT (75% of the participants will receive active treatment), as the latter is most likely to be a three arm or a factorial trial. Subsequently, the results obtained from this pilot trial regarding the participants' willingness to be randomised will be a more precise estimate of the main RCT.

Setting:

Participants will primarily be indentified in secondary care (Nottingham, Leicester, Derby and Mansfield) and by direct advertising. Recruitment will be extended to include primary care if time and resources allow.

Sample size estimate:

This is a pilot study, with sample size being resource driven in terms of available subjects in a reasonable time frame, for which no formal statistically based sample size estimate is applicable.

For this pilot study, 21 participants (7 in each group) will allow the investigators to measure the recruitment rate from each site; n=21 will also give a reasonable estimate of acceptability and completeness of outcome data.

Number of participants:

The investigators estimate to recruit 21 participants, 7 in each group; however the recruitment will depend on time and resources available.

Description of interventions:

The hand held NB-UVB unit is a portable and light weight NB-UVB device that is slightly larger than a usual hairbrush.

These units are CE marked and are being used within their licensing authorisations.

The hand held device is held above any small area of the skin (10-12cm x 6.5-4 cm) and spacers are provided in order to standardise the distance from the skin. Hand held NB-UVB units are suitable for small lesions making phototherapy available for participants with limited disease, and for participants who find it difficult to attend hospital-based phototherapy units 2 to 3 times a week.

The lamp is held still above the vitiliginous lesion. If the size of the lesion is bigger than mentioned above i.e. 10-12 cm X 6.5-4 cm, the participant (or their parent or legal guardian for younger participants) will be asked to move the lamp slowly above the area in circular movements.

In this trial the investigators will explore 2 similar hand held NB-UVB (311nm) phototherapy devices with the same output, but a slighly different size of treatment window, weight of the device and cable length. By doing this the investigators will be able to monitor and assess which of the 2 units is best tolerated in terms of participants' satisfaction and minimisation of side effects. The information gathered will assist in the choice of device for the main RCT.

Device A: Dermfix 1000 NB-UVB Device B: Waldmann UV 109 Both devices are manual units with an on/off switch and an external digital timer. The user of this device has to follow the written treatment protocol, set and re-set the timer each time manually and to keep an accurate diary of exposure times.

The devices need to be connected to a socket all the time.

Placebo Device: Placebo Dermfix 1000, same as Device A The placebo device to be used is identical to the active device Dermfix with the only difference that it will not emit 311nm NB-UVB.

Duration of study:

The recruitment is planned to commence as soon as approvals (ethics and R&D) are in place and should take approximately 6 months. Each participant will participate in the study for 4 months. Participants will be assessed at face to face visits at the beginning of the screening stage-baseline, 8th week and 16th week. Outcomes will be assessed at the same time points.

Follow up telephone calls will be made at weeks 1, 2 and 12.

Randomisation and blinding:

Participants will be blinded to which device they have received, (intervention groups A or B or control group C).

The research nurse will be blinded to which group the participants are allocated (intervention groupS A or B or control group C).

The randomisation will be based on a computer generated pseudo-random code using random permuted blocks of randomly varying size, created by the Nottingham Clinical Trials Unit (CTU) in accordance with their standard operating procedure (SOP) and held on a secure server. The randomisation will be stratified by 3 groups (Group A, B and C) and 2 recruiting sites.

Statistical methods:

Demographic, baseline data and measure of compliance will be summarised by descriptive statistics (number[n], mean, standard deviation [SD], median, minimum and maximum) or frequency tables, stratified by treatment.

Also, calculation of the re-pigmentation rate, spread & cessation of the vitiligo lesions will be conducted for all of the 3 devices. This information will be vital for the sample size calculation for the definitive trial.

  Eligibility

Ages Eligible for Study:   5 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Participants with a diagnosis of vitiligo confirmed by dermatologist. Participants with focal disease, less than 25% of body surface area.
  • Age: children and adults (no upper age limit). The child has to be older than 5 years old and/or mature enough to understand that the eyes must be kept closed, and to stay still for the duration of treatment.
  • No therapy for vitiligo in the previous 2 weeks and no other vitiligo treatment during the trial other than as per trial protocol.
  • Participants with both spreading and stable disease
  • Participants able to give informed consent. We will aim to treat all vitiligo lesions, however the participant (and parent/legal guardian if the participant is a child) and research nurse will agree at the beginning of the trial if there are any lesions participants would not want to be treated, such as on non exposed sites or areas difficult to reach to treat, e.g. back.

Exclusion Criteria:

  • Segmental vitiligo
  • Universal vitiligo
  • Previous history of skin cancer
  • Recent or concurrent radiotherapy
  • Photosensitivity
  • Use of immunosuppressive or photosensitive drugs
  • Pregnant or lactating women
  • Any major medical co-morbidities
  • Vitiligo lesions on genitalia should not be treated
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01478945

Locations
United Kingdom
Queens Medical Centre,Nottingham University Hospitals NHS Trust
Nottingham, East Midlands, United Kingdom, NG7 2UH
Leicester Royal Infirmary
Leicester, Leicestershire, United Kingdom, LE1 5WW
Sponsors and Collaborators
University of Nottingham
Investigators
Study Chair: Hywel C. Williams, MSc PhD FRCP Centre of Evidence Based Dermatology
Study Director: Viktoria Eleftheriadou, MD Centre of Evidence Based Dermatology
Principal Investigator: Jane C Ravenscroft, MB ChB, MRCP Queen's Medical Centre
Principal Investigator: Anton Alexandroff, PhD MRCP University Hospitals, Leicester
  More Information

Additional Information:
Publications:
Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: University of Nottingham
ClinicalTrials.gov Identifier: NCT01478945     History of Changes
Other Study ID Numbers: 11/EM/0331, PR-PG-040710177
Study First Received: November 15, 2011
Last Updated: August 22, 2013
Health Authority: United Kingdom: National Health Service
United Kingdom: National Institute for Health Research
United Kingdom: Research Ethics Committee

Keywords provided by University of Nottingham:
vitiligo
early vitiligo
focal vitiligo

Additional relevant MeSH terms:
Vitiligo
Hypopigmentation
Pigmentation Disorders
Skin Diseases

ClinicalTrials.gov processed this record on October 21, 2014