E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
|
E.1.1.1 | Medical condition in easily understood language |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Skin and Connective Tissue Diseases [C17] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10012438 |
E.1.2 | Term | Dermatitis atopic |
E.1.2 | System Organ Class | 10040785 - Skin and subcutaneous tissue disorders |
|
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Evaluate changes in skin barrier function with transepidermal water loss (TEWL) assessed after skin tape stripping (STS) in predefined lesional skin in pediatric patients with moderate to severe atopic dermatitis (AD) treated with dupilumab |
|
E.2.2 | Secondary objectives of the trial |
Evaluate changes in skin barrier function with TEWL assessed after STS in predefined lesional and non lesional skin in pediatric patients with moderate to severe AD treated with dupilumab in reference to normal skin of healthy volunteers.
Evaluate time course of change in skin barrier function with TEWL assessed before and after STS in predefined lesional and non-lesional skin in pediatric patients with moderate to severe AD during dupilumab treatment phase and follow-up period in reference to normal skin of healthy volunteers
|
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Participant must be between ≥6 to <12 years of age (inclusive), at the time of signing the informed consent
- 15 kg ≤ body weight <60 kg.
Atopic dermatitis patients:
- Male or female pediatric patients.
- Patients with AD diagnosis according to Hanifin and Rajka criteria at least 1 year before screening.
-Investigator Global Assessment (IGA) score of ≥3 (for US patients) or IGA ≥4 (for EU patients) at screening (on the 0-4 scale) depending on approved label indication in the country.
- Patients with moderate to severe AD those are eligible to be treated with dupilumab according to product label.
- Patients with AD must have active lesions on the upper limbs or lower limbs (including trunk, if needed), with severity for lesion erythema or edema/papulation ≥2 at screening on the 0-3 scale of the ISS.
- Participants should have a non-lesional (normal looking) skin area 4 cm from the edge of the lesional area. If unable to identify non-lesional skin 4 cm from the lesional area, it is acceptable to identify normal looking skin as close to the lesion as possible.
Healthy volunteers:
- Age and gender matched (match on age ±2 years) to a selected AD patient by study site. |
|
E.4 | Principal exclusion criteria |
- Previous treatment with dupilumab within 6 months prior to screening.
- Skin conditions other than AD that can confound assessments in the area of TEWL assessments in the opinion of the Investigator (ie, skin atrophy, ichthyosis, tinea infection, contact dermatitis).
- Cracked, crusted, oozing, or bleeding AD lesions in the designated lesional assessment area leaving insufficient skin that is adequate for TEWL assessments.
- Hypersensitivity to the active substance or to any of the excipients of dupilumab.
- Ocular disorder that in the opinion of the Investigator could adversely affect the individual’s risk for study participation. Examples include -but are not limited to- individuals with a history of active cases of herpes keratitis; Sjogren’s syndrome, keratoconjunctivitis sicca, or individuals with ocular conditions that require the use of ocular corticosteroids or cyclosporine.
- Healthy volunteers with a personal history of an atopic condition. |
|
E.5 End points |
E.5.1 | Primary end point(s) |
Percent change from baseline in TEWL after 5 STS assessed on lesional skin in AD patients ; Percent change from baseline in TEWL after 5 STS assessed on lesional skin in AD patients. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
|
E.5.2 | Secondary end point(s) |
1 - Percent change from baseline in TEWL after 20 STS assessed on lesional skin in AD patients.
Absolute change from baseline in TEWL after 20 STS assessed on lesional skin in AD patients
2 - Percent change from baseline in TEWL after 20 STS assessed on non-lesional skin in AD patients.
Absolute change from baseline in TEWL after 20 STS assessed on non-lesional skin in AD patients.
3 - Percent change from baseline in TEWL after 20 STS assessed on normal skin in healthy volunteers
Absolute change from baseline in TEWL after 20 STS assessed on normal skin in healthy volunteers
4 - Percent change from baseline in TEWL after 15 STS assessed on lesional skin in AD patients.
Absolute change from baseline in TEWL after 15 STS assessed on lesional skin in AD patients.
5 - Percent change from baseline in TEWL after 15 STS assessed on non-lesional skin in healthy volunteers
Absolute change from baseline in TEWL after 15 STS assessed on non-lesional skin in healthy volunteers
6 - Percent change from baseline in TEWL after 15 STS assessed on normal skin in healthy volunteers
Absolute change from baseline in TEWL after 15 STS assessed on normal skin in healthy volunteers
7 - Percent change from baseline in TEWL after 10 STS assessed on lesional skin in AD patients.
Absolute change from baseline in TEWL after 10 STS assessed on lesional skin in AD patients
8 - Percent change from baseline in TEWL after 10 STS assessed on non-lesional skin in AD patients.
Absolute change from baseline in TEWL after 10 STS assessed on non- lesional skin in AD patients
9 - Percent change from baseline in TEWL after 10 STS assessed on normal skin in healthy volunteer
Absolute change from baseline in TEWL after 10 STS assessed on normal skin in healthy volunteer
10 - Percent change from baseline in TEWL after 5 STS assessed on non-lesional skin in AD patients
Absolute change from baseline in TEWL after 5 STS assessed on non-lesional skin in AD patients
11 - Percent change from baseline in TEWL after 5 STS assessed on normal skin in healthy volunteers
Absolute change from baseline in TEWL after 5 STS assessed on normal skin in healthy volunteers
12 - Percent change in TEWL before STS on lesional skin in AD patients over time.
Absolute change in TEWL before STS on lesional skin in AD patients over time
13 - Percent change in TEWL before STS on non-lesional skin in AD patients over time.
Absolute change in TEWL before STS on non-lesional skin in AD patients over time.
14 - Percent change in TEWL before STS on normal skin in healthy volunteers over time
Absolute change in TEWL before STS on normal skin in healthy volunteers overtime
15 - Percent change in TEWL area under the curve (TEWL AUC: a composite measure before and after 5, 10, 15, and 20 STS) for skin barrier function in lesional skin in AD patients over time.
Absolut change in TEWL area under the curve (TEWL AUC: a composite measure before and after 5, 10, 15, and 20 STS) for skin barrier function in lesional skin in AD patient overtime
16 - Percent change in TEWL AUC (a composite measure before and after 5, 10, 15, and 20 STS) for skin barrier function in non-lesional skin in AD patient over time.
Absolute change in TEWL AUC (a composite measure before and after 5, 10, 15, and 20 STS) for skin barrier function in non-lesional skin in AD patient over time
17 - Percent change in TEWL AUC (a composite measure before and after 5, 10, 15, and 20 STS) for skin barrier function in normal skin in healthy volunteers over time
Absolute change in TEWL AUC (a composite measure before and after 5, 10, 15, and 20 STS) for skin barrier function in normal skin in healthy volunteers over time
18 - Percent change in TEWL after STS assessed on lesional skin in AD patients over time.
Absolute change in TEWL after STS assessed on lesional skin in AD patients over time.
19 - Percent change in TEWL after STS assessed on non-lesional skin in AD patients over time.
Absolute change in TEWL after STS assessed on non-lesional skin in AD patients over time.
20 - Percent change in TEWL after STS assessed on normal skin in healthy volunteers over time.
Absolute change in TEWL after STS assessed on normal skin in healthy volunteers over time. |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 : Baseline to week 16
12, 13, 14, 15, 16, 17, 18, 19, 20 : Baseline to week 28 |
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | No |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | Yes |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.4.1 | Number of sites anticipated in Member State concerned | 1 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 1 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
United Kingdom |
United States |
|
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | |
E.8.9.1 | In the Member State concerned months | 13 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial months | 13 |