Skin bioMARkers for Atopic Eczema Therapy Evaluation (SMART)
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|ClinicalTrials.gov Identifier: NCT04194814|
Recruitment Status : Not yet recruiting
First Posted : December 11, 2019
Last Update Posted : December 17, 2019
|Condition or disease||Intervention/treatment||Phase|
|Atopic Eczema/Dermatitis (Non-Specific)||Drug: crisaborole (2%) ointment Drug: betamethasone valerate 0.1% cream||Phase 2|
The first-line drug treatment for mild-moderate AD are currently topical corticosteroids (TCS) with recognized efficacy. However, their prolonged or inappropriate use, can lead to local adverse effects. Side-effects of topical corticosteroids comprise a variety of skin changes in the sense of skin atrophy thinning of the skin and in some cases development of telangiectasia, spontaneous scars, folliculitis, striae distensae (stretch marks), contact dermatitis, acne or rosacea depending on potency, galenic formulation, patient age and body area to which the medication will be applied, exposure time.
Assessing the safety (local adverse effects) of current or new treatments and new treatment approaches using existing treatments through noninvasively monitor on possible early skin (subclinical) changes associated with the local clinical adverse effects of treatment may be an effective step for an enhanced AD treatment management.
Primary Aim: To further develop and validate two new non-invasive technologies for the assessment of early sub-clinical skin changes associated with adverse effects and to derive an optimum panel of safety biomarkers for use in future clinical trials of topical anti-inflammatory treatments.
The safety of two topical anti-inflammatory treatments for AD will be compared in this clinical trial, with a focus on early sub-clinical signs: crisaborole 2% ointment and betamethasone valerate 0,1% cream. Step 1 involves the collection of data on the early sub-clinical skin changes using the non-invasive technologies: OCT and FTIR spectroscopy. The data from this study will then be used to identify and refine biophysical biomarkers of skin atrophy and skin barrier disruption in steps 2 and 3.
Secondary Aim: To determine the relative local skin effects of crisaborole (2%) ointment compared to a potent and moderately potent TCS in participants with mild to moderate AD. The focus is on 'early biomarkers' of 'local skin changes'and not clinical efficacy, which has been established in previous trials.
Rationale for selecting the two comparators are related to prescription behaviors in UK (Betamethasone valerate 0,1% cream) and with no reported TCS-like local adverse effects profile (crisaborole 2% ointment)
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||37 participants|
|Intervention Model:||Single Group Assignment|
|Intervention Model Description:||An observer-blind forearm-controlled clinical trial in 37 AD patients, wherein each participant will undergo 4 weeks treatment with crisaborole (2%) ointment on one forearm and betamethasone valerate (0.1%) cream on the other (twice daily application in each case and randomised site allocation). At the start of the study the skin of the test sites (forearms) will be clear of the signs of AD so that the investigation focuses on local adverse effects on the skin as opposed to anti-inflammatory effects (focus on local adverse effects and not clinical efficacy). The condition of the skin will be assessed before, during and after treatment.|
|Masking:||None (Open Label)|
|Masking Description:||Allocation of the treatments to the test sites (right/left forearm) will be randomised (to avoid site position-dependent artefacts) Observer-blind - The collection of study data will be conducted in a separate area (dedicated skin barrier research suite) by a separate team (comprising skilled dermatology researchers) who will be blind.|
|Official Title:||Validation of a Novel Composite of Skin Biomarkers as a Primary Outcome Measure for Evaluating the Safety of Treatments for Atopic Dermatitis: a Randomized Controlled Trial (Phase 2) Comparing the Effects of Crisaborole 2% Ointment to Betamethasone Valerate 0.1% Cream on Skin Structure and Function in Participants With Atopic Dermatitis.|
|Estimated Study Start Date :||January 2020|
|Estimated Primary Completion Date :||April 2021|
|Estimated Study Completion Date :||April 2021|
crisaborole and topical Corticosteroid
crisaborole (2%) ointment on the other forearm, twice daily application for 4 weeks (randomised site allocation)
betamethasone valerate (0.1%) cream on one forearm, twice daily application for 4 weeks (randomised site allocation)
Drug: crisaborole (2%) ointment
twice daily application on one forearm for 4 weeks (randomised site allocation)
Other Name: Eucrisa
Drug: betamethasone valerate 0.1% cream
twice daily application on one forearm for 4 weeks (randomised site allocation)
Other Name: Betnovate cream
- epidermal thickness (day 29 - day 1) [ Time Frame: day 29 - day 1 ]The difference in the change in epidermal thickness (day 29 - day 1), measured by structural OCT, between the sites treated with crisaborole (2%) ointment and betamethasone valerate (0.1%) cream.
- epidermal thickness (on day 1, day 15, day 29 and day 57) [ Time Frame: on day 1, day 15, day 29 and day 57 ]The difference in the change in epidermal thickness measured by structural OCT during and after 28 days treatment. OCT images of epidermal thickness taken on day 1, day 15, day 29 and day 57.
- erythema [ Time Frame: during and after 28 days ]
The difference in the change in skin redness/erythema (relating to tolerability) during and after 28 days treatment determined by:
Visual redness/erythema score determined on day 1, day 15, day 29 and day 57 Objective redness assessed with the Mexameter measured on day 1, day 15, day 29 and day 57
- TEWL - skin barrier function [ Time Frame: day 1, day 15, day 29 and day 57 ]The difference in the change in Trans-Epidermal Water Loss (TEWL, relates to skin barrier function) during and after treatment.17,18 TEWL measurements on day 1, day 15, day 29 and day 57.
- TEWL - after tape-stripping [ Time Frame: on day 29, after 28 days treatment ]The difference in skin barrier integrity (TEWLts20) after 28 days treatment. TEWL measurements after tape-stripping (TEWLts20) on day 29
- skin dryness [ Time Frame: Visual skin dryness scored on day 1, day 15, day 29 and day 57 ]The difference in the change in visual skin dryness during and after treatment. Visual skin dryness scored on day 1, day 15, day 29 and day 57
- Natural Moisturising Factor (NMF) [ Time Frame: Day 1 - day 29 ]The difference in Natural Moisturising Factor (NMF, filaggrin breakdown products) levels at the end of treatment19 NMF will be quantified from superficial stratum corneum samples collected on day 29 using HPLC
- superficial plexus depth [ Time Frame: Angiographic OCT images taken on day 1, day 15, day 29 and day 57 ]The difference in the change in superficial plexus depth (µm) measured by angiographic OCT
- blood vessel diameter [ Time Frame: Angiographic OCT images taken on day 1, day 15, day 29 and day 57 ]The difference in the change in mean blood vessel diameter (µm) measured by angiographic OCT
- blood vessel density [ Time Frame: Angiographic OCT images taken on day 1, day 15, day 29 and day 57 ]The difference in the change in blood vessel density (segments/mm2) measured by angiographic OCT
- collagen matrix [ Time Frame: Polarisation sensitive (PS)-OCT images taken on day 1 and day 29. ]The difference in the change in collagen matrix index (an index derived from birefringence images of collagen density and arrangement) measured by polarisation sensitive (PS)-OCT
- carboxylate levels [ Time Frame: FTIR spectrum of the skin surface taken on day 1 day 15, day 29 and day 57 ]The difference in the change in carboxylate levels (indirect measure of NMF levels, not to be confused with direct quantification from stratum corneum samples by HPLC) in the stratum corneum measured by FTIR spectroscopy
- stratum corneum lipid structure [ Time Frame: FTIR spectra taken through the stratum corneum (during tape-stripping) on day 29 ]The difference in stratum corneum lipid structure measured by FTIR spectroscopy in conjunction with tape-stripping
- FLG mutation carriers [ Time Frame: Saliva sample at visit 1 for FLG genotyping ]Number of FLG loss-of-function mutation carriers
- Descriptive tabulations of TEWL by mutation status [ Time Frame: TEWL measured at day 1, day 15 and day 29 ]
Descriptive tabulations of TEWL by mutation status, if sufficient participants with mutation are detected.
All the above
- Descriptive tabulations of epidermal thickness by mutation status [ Time Frame: Structural OCT derived epidermal thickness measured at day 1, day 15 and day 29 ]
Descriptive tabulations of epidermal thickness (structural OCT derived) by mutation status , if sufficient participants with mutation are detected.
All the above
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04194814
|Contact: Aimee Cardemail@example.com|
|Contact: Simon Danby, PhD||+44 (0) 114 21 firstname.lastname@example.org|
|Sheffield Dermatology Research, University of Sheffield Medical School, The Royal Hallamshire Hospital|
|Sheffield, South Yorkshire, United Kingdom, S10 2JF|
|Contact: Simon G Danby, PhD +44 (0)114 2159563 email@example.com|
|Contact: Les Hunter, BA +44 (0)114 2159576 firstname.lastname@example.org|
|Sub-Investigator: Simon G Danby, PhD|
|Principal Investigator: Michael J Cork (Professor), MB.ChB|
|Sub-Investigator: Stephen Matcher (Professor), PhD|
|Sub-Investigator: Rob Byers, PhD|
|Principal Investigator:||Michael J Cork, MB.ChB||The University of Sheffield & Sheffield Teaching Hospitals NHS FT|