Dermatitis Atopic
Conditions
Brief summary
This is a multinational, multicenter, randomized, double-blind, placebo-controlled, parallel, Phase 3 study for treatment of participants aged 12 years and older diagnosed with moderate-to-severe atopic dermatitis (AD). The primary objective of ESTUARY is to assess the maintenance of treatment response on continued Q12W dosing compared to treatment withdrawal. Study details include: The study duration will be up to 68 weeks including a 52-week randomized double-blind period, and a 16-week safety follow-up for participants not entering the LTS17367 (RIVER-AD). The study duration will be up to 52 weeks for participants entering the LTS17367 \[RIVER-AD\] study at the Week 52 visit of EFC17600 (ESTUARY).
Interventions
DRUGAmlitelimab
Pharmaceutical form: Injection solution Route of administration: Subcutaneous (SC) injection
DRUGPlacebo
Pharmaceutical form: Injection solution Route of administration: SC injection
Sponsors
Sanofi
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
12 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Participants must be at least 12 years of age inclusive, at the time the informed consent is signed. * Must have participated, received study treatment without permanent investigational medicinal product (IMP) discontinuation, and adequately completed the assessments required for the treatment period in one of the three 24-week parent studies EFC17559 (COAST-1), EFC17560 (COAST-2) or EFC17561 (SHORE) for moderate-to-severe AD. * Able and willing to comply with requested study visit and procedures. * Body weight must be ≥ 25 kg.
Exclusion criteria
Participants are excluded from the study if any of the following criteria apply: * Developed a medical condition that would preclude participation as described in
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| US and US reference countries: Proportion of participants who are responders AND maintained vIGA-AD ≤2 without experiencing relapse among participants who were responders at baseline of ESTUARY | Week 24 | Clinical response is defined as having vIGA-AD 0 or 1. Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^. The validated Investigator Global Assessment scale for atopic dermatitis (vIGA-AD) is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The Eczema Area and Severity Index (EASI) is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75 is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| EU, EU Reference Countries, and Japan: Proportion of participants who maintain treatment response in ESTUARY without experiencing relapse | Week 48 | Maintenance of clinical response is defined as having vIGA-AD 0 or 1 OR EASI-75\^ OR vIGA-AD 0 or 1 and EASI-75\^. Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75 is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Proportion of participants who continue to be EASI-75^ among the participants who met EASI-75^ at baseline of ESTUARY | Up to Week 48 | The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75 is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who continue to be vIGA-AD 0 or 1 among participants who met vIGA-AD 0 or 1 at baseline of ESTUARY | Up to Week 48 | The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). |
| Proportion of participants who continue to be vIGA-AD 0 or 1 with presence of only barely perceptible erythema among the participants who were vIGA-AD 0 or 1 with presence of only barely perceptible erythema at baseline of ESTUARY | Up to Week 48 | The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). Only barely perceptible erythema = no induration/papulation, no lichenification, no oozing or crusting. |
| Proportion of participants who maintained weekly average of daily PP-NRS reduction of ≥4^ among the participants with weekly average of daily PP-NRS reduction of ≥ 4^ at baseline of ESTUARY | Up to Week 48 | The Peak Pruritus-Numerical Rating Scale (PP-NRS) is a validated single item 0-10 numeric rating scale assessing peak pruritus (itch) associated with AD with 0 = no itch and 10 = worst itch imaginable. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who maintain treatment response without experiencing relapse | Up to Week 48 | Maintenance of treatment response is defined as having vIGA-AD 0 or 1 OR EASI-75\^ OR vIGA-AD 0 or 1 and EASI-75\^. Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. |
| Percent change in EASI from parent study baseline | Parent study baseline to Week 48 | The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. |
| Proportion of participants who maintained EASI-75^ without experiencing relapse among the participants who met EASI-75^ at baseline of ESTUARY | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants with EASI-75^ | Up to Week 48 | The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75 is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who continue to be EASI-90^ among the participants who met EASI-90^ at baseline of ESTUARY | Up to Week 48 | The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-90 is 90% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants with EASI-90^ | Up to Week 48 | The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-90 is 90% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Time to the first event of vIGA-AD ≥3 or loss of EASI-75^ among the participants who were vIGA-AD 0 or EASI-75^ at baseline of ESTUARY | Up to Week 48 | The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75 is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants with vIGA-AD 0 or 1 | Up to Week 48 | The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). |
| Proportion of participants who are vIGA-AD 0 or 1 with presence of only barely perceptible erythema (no induration/papulation, no lichenification, no oozing or crusting) | Up to Week 48 | The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). |
| EU, EU Reference Countries, and Japan: Time to first event of vIGA-AD ≥3 or loss of EASI^75 among those participants who were vIGA-AD 0 or 1 at baseline of ESTUARY | Up to Week 48 | The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75 is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| EU, EU Reference Countries, and Japan: Time to first event of vIGA-AD ≥3 or loss of EASI^75 among those participants who were vIGA-AD 0 at baseline of ESTUARY | Up to Week 48 | The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75 is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants with weekly average of daily PP-NRS reduction of ≥4^ | Parent study baseline to Week 48 | The PP-NRS is a validated single item 0-10 numeric rating scale assessing peak pruritus (itch) associated with AD with 0 = no itch and 10 = worst itch imaginable. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who maintain PP-NRS ≤4 among participants who were PP-NRS ≤4 at baseline of ESTUARY | Up to Week 48 | The PP-NRS is a validated single item 0-10 numeric rating scale assessing peak pruritus (itch) associated with AD with 0 = no itch and 10 = worst itch imaginable. |
| EU, EU Reference Countries, and Japan: Proportion of participants who maintain reduction in POEM ≥4^ among the participants with reduction in POEM ≥4^ at baseline of ESTUARY | Up to Week 48 | The Patient Oriented Eczema Measure (POEM) is a 7-item self-assessment questionnaire that assesses disease symptoms on a 5-point scale; 0 (no days) to 4 (every day in the last week). The sum of the 7 items gives the total POEM score of 0 (absent disease) to 28 (very severe). Higher scores indicated more severe disease and poor quality of life. The symbol \^ represents "based on parent study baseline". |
| EU, EU Reference Countries, and Japan: Proportion of participants with a reduction in CDLQI ≥6^ among participants aged ≥12 to <16 years old and with reduction in CDLQI ≥6^ at baseline of ESTUARY | Up to Week 48 | The Children's Dermatology Quality of Life Index (CDLQI) is a validated 10-item questionnaire to measure dermatology-specific quality of life (QoL) in children aged 4-\<16 years. Overall scoring ranges from 0 to 30, with a higher score indicating a poorer QoL. The symbol \^ represents "based on parent study baseline". |
| EU, EU Reference Countries, and Japan: Proportion of participants with ≥ 4 reduction in DLQI ≥4^ among the participants aged ≥16 years old and with reduction in DLQI ≥4^ at baseline of ESTUARY | Up to Week 48 | The DLQI is a validated 10-item questionnaire to measure dermatology-specific quality of life (QoL) in adult patients. Overall scoring ranges from 0 to 30, with a higher score indicating a poorer QoL. |
| Percentage of participants who experienced Treatment-Emergent Adverse Events (TEAEs), Treatment-Emergent Serious Adverse Events (TESAEs) and/or Treatment-Emergent Adverse Events of Special Interest (AESI) | Up to week 68 | — |
| Pharmacokinetic: Serum amlitelimab concentrations | Up to Week 68 | — |
| Incidence of antidrug antibodies (ADAs) of amlitelimab | Up to Week 68 | — |
| Pharmacokinetic: maximum plasma concentration (Cmax) | Up to Week 68 | — |
| Pharmacokinetic: AUC4W and AUC12W | Up to Week 4 and 12 | Cumulative area under the serum concentration curve over 4 weeks (AUC4W). Cumulative area under the serum concentration curve over 12 weeks (AUC12W). |
| Proportion of participants who are EASI-75^ among participants who had EASI-75^ at baseline of ESTUARY and did not relapse by Week 12 | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Time to first recapture of EASI-75^ among participants who had EASI-75^ at baseline of ESTUARY and subsequently relapsed | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who recapture EASI-75^ by visit among the participants who had EASI-75^ at baseline of ESTUARY and subsequently relapsed | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who are EASI 90^ AND who maintain EASI-75^ without experiencing relapse among participants who had EASI-90^ at baseline of ESTUARY | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who are EASI 90^ without experiencing relapse among participants who had EASI-90^ at baseline of ESTUARY | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who are EASI-90^ among participants who had EASI-90^ at baseline of ESTUARY and did not relapse by Week 12. | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who are vIGA-AD 0 or 1 AND who maintain vIGA-AD ≤2 without experiencing relapse among participants who had vIGA-AD 0 or 1 at baseline of ESTUARY | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who maintain vIGA-AD response within 1 point of baseline without experiencing relapse among participants who had vIGA-AD 0 or 1 at baseline of ESTUARY | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who maintain vIGA-AD 0 or 1 without experiencing relapse among participants who had vIGA-AD 0 or 1 at baseline of ESTUARY | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who are vIGA-AD 0 or 1 without experiencing relapse among participants who had vIGA-AD 0 or 1 at baseline of ESTUARY | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Time to first recapture of vIGA-AD 0 or 1 among participants who had vIGA-AD 0 or 1 at baseline of ESTUARY and subsequently relapsed | Up to Week 48 | The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). |
| Proportion of participants who recapture vIGA-AD 0 or 1 among participants who had vIGA-AD 0 or 1 at baseline of ESTUARY and subsequently relapsed | Up to Week 48 | The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). |
| Proportion of participants who are vIGA-AD 0 or 1 among participants who had vIGA-AD 0 or 1 at baseline of ESTUARY and did not relapse by Week 12 | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who are vIGA-AD 0 or 1 with only barely perceptible erythema AND who maintain vIGA-AD ≤2 without experiencing relapse among participants who had vIGA-AD 0 or 1 with only barely perceptible erythema at baseline of ESTUARY | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". Only barely perceptible erythema = no induration/papulation, no lichenification, no oozing or crusting. |
| Proportion of participants who are vIGA-AD 0 or 1 with presence of only barely perceptible erythema among participants who had vIGA-AD 0 or 1 with presence of only barely perceptible erythema at baseline of ESTUARY and did not relapse by Week 12 | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". Only barely perceptible erythema = no induration/papulation, no lichenification, no oozing or crusting. |
| Proportion of participants who maintain weekly average of daily PP-NRS reduction of ≥4^ without experiencing relapse among participants with weekly average of daily PP NRS reduction of ≥4^ at baseline of ESTUARY | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who maintain PP NRS ≤4 without experiencing relapse among participants who had PP-NRS ≤4 at baseline of ESTUARY | Up to Week 48 | Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Proportion of participants who achieve PP-NRS reduction of ≥4 | Up to Week 48 | The PP-NRS is a validated single item 0-10 numeric rating scale assessing peak pruritus (itch) associated with AD with 0 = no itch and 10 = worst itch imaginable. |
| Proportion of participants who achieve PP-NRS ≤4 | Up to Week 48 | The PP-NRS is a validated single item 0-10 numeric rating scale assessing peak pruritus (itch) associated with AD with 0 = no itch and 10 = worst itch imaginable. |
| Duration of maintained response without relapse | Up to Week 48 | Maintenance of clinical response is defined as having vIGA-AD 0 or 1 OR EASI-75\^ OR vIGA-AD 0 or 1 and EASI-75\^. Relapse is defined as having vIGA-AD ≥3 or loss of EASI-75\^ The vIGA-AD is an Investigator-completed assessment scale used to determine severity of AD and clinical response to treatment. It is based on a 5-point scale, ranging from 0 (clear) to 4 (severe). The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Total score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. EASI-75\^ is 75% reduction from baseline in EASI score. The symbol \^ represents "based on parent study baseline". |
| Percent change in Head & Neck EASI sub-score from the parent study baseline among participants with Head & Neck EASI sub-score >0 at baseline of the parent study | From parent study baseline to Week 48 | The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Four body areas are considered separately: Head \& Neck, Trunk including genital area, Upper extremities and Lower extremities including the buttocks. Head \& Neck sub-score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. |
| Proportion of participants Head & Neck EASI sub-score EASI-75^ among participants with Head & Neck EASI sub-score >0 at baseline of the parent study | From parent study baseline to Week 48 | The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Four body areas are considered separately: Head \& Neck, Trunk including genital area, Upper extremities and Lower extremities including the buttocks. Head \& Neck sub-score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. Head \& Neck EASI sub-score EASI-75 is 75% reduction from baseline in Head \& Neck EASI sub-score. The symbol \^ represents "based on parent study baseline" |
| Proportion of participants with Head & Neck EASI sub-score EASI-90^ among participants with Head & Neck EASI sub-score >0 at baseline of parent study | From parent study baseline to Week 48 | The EASI is an Investigator-assessed validated tool used to measure the extent (area) and severity of AD. Four body areas are considered separately: Head \& Neck, Trunk including genital area, Upper extremities and Lower extremities including the buttocks. Head \& Neck sub-score ranges from 0 to 72 with a higher score indicating increased extent and severity of AD. Head \& Neck EASI sub-score EASI-90 is 90% reduction from baseline in Head \& Neck EASI sub-score. The symbol \^ represents "based on parent study baseline" |
Countries
Argentina, Australia, Brazil, Bulgaria, Canada, Chile, China, Czechia, Denmark, France, Germany, Greece, India, Israel, Italy, Japan, Mexico, Poland, Portugal, South Africa, South Korea, Spain, Sweden, Taiwan, Turkey (Türkiye), United Kingdom, United States
Outcome results
None listed