SAR231893-LPS15497- "Dupilumab Effect on Sleep in AD Patients"

DB Period: Change From Baseline in SCORAD Sleep Loss Visual Analog Scale (VAS) Score at Week 12

SCORAD is a validated scoring index for AD, which combines extent (A, 0-100), severity (B, 0-18), and subjective symptoms (C, 0-20) based on itch and sleeplessness, each scored (0-10). The SCORAD for an individual was calculated by the formula: A/5 + 7B/2 + C (can range from 0 to 103). Subjective symptoms (i.e., itch and sleeplessness/sleep loss) were each scored by the participant using a VAS ranging from 0 to 10, where "0" is no itch (or no sleep loss) and "10" is the worst imaginable itch (or sleeplessness). Change from Baseline in SCORAD sleeplessness/sleep loss VAS score is reported in this outcome measure.

Time frame: Baseline, Week 12

DB Period: Change From Baseline in Patient-Reported Outcomes Measurement Information System (PROMIS) Sleep Related Impairment Short Form 8a (SF8a) Total T-Score at Week 12

PROMIS is a Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), Level 2, sleep disturbance measure. In this study, 8- item PROMIS Sleep Related Impairment SF8a that assesses the domain of sleep related impairment in the past 7 days in individuals aged 18 and older, was used. Each item asks the participant to rate the severity of the participant's sleep related impairment during the past 7 days (at each specified visit) on a 5-point scale (1 = not at all; 2 = a little bit; 3 = somewhat; 4 = quite a bit; and 5 = very much) with raw score ranging from 8 to 40; higher scores indicating greater severity of sleep impairment. PROMIS T-score rescales the raw score into a standardized score with a mean of 50 and a standard deviation of 10. Possible range for T-score is 30 to 80, with higher scores indicating greater severity of sleep impairment.

Time frame: Baseline, Week 12

DB Period: Change From Baseline in Weekly Average Total Sleep Time (TST) at Week 12

A sleep diary was designed to gather information about participant's daily sleep pattern. It measured night-time sleep assessments. TST (in minutes) was calculated using the formula: Time of waking up for the day minus time of falling sleep minus Wake After Sleep Onset (WASO), where WASO = time awake after initial sleep onset but before the final awakening for the day. Data for WASO was collected from Question 3 of the Sleep Diary: "Considering all the times you woke up last night, how much time were you awake in total?". Baseline and Post-baseline weekly average data were calculated based on the mean of the data over the 7 days prior to and including the day at the Baseline or at the end of the corresponding week. In this outcome measure, change from Baseline in TST at Week 12 is reported.

Time frame: Baseline, Week 12

DB Period: Change From Baseline in Weekly Average Sleep Efficiency (SE) at Week 12

A sleep diary was designed to gather information about participant's daily sleep pattern. It measured night-time sleep assessments. SE was calculated using the formula: (TST divided by \[Time of waking up for the day - Time of trying to fall sleep\]) multiplied by 100 percent (%). TST (in minutes) was calculated using the formula: Time of waking up for the day minus time of falling sleep minus Wake After Sleep Onset (WASO), where WASO = time awake after initial sleep onset but before the final awakening for the day. Baseline and Post-baseline weekly average data were calculated based on the mean of the data over the 7 days prior to and including the day at the Baseline or at the end of the corresponding week. In this outcome measure, change from Baseline in SE at Week 12 is reported.

Time frame: Baseline, Week 12

DB Period: Change From Baseline in Weekly Average Wake After Sleep Onset (WASO) at Week 12

A sleep diary was designed to gather information about participant's daily sleep pattern. It measured night-time sleep assessments. WASO = time awake (in minutes) after initial sleep onset but before the final awakening for the day. Data for WASO was collected from Question 3 of the Sleep Diary: "Considering all the times you woke up last night, how much time were you awake in total?". Baseline and Post-baseline weekly average data were calculated based on the mean of the data over the 7 days prior to and including the day at the Baseline or at the end of the corresponding week. In this outcome measure, change from Baseline in WASO at Week 12 is reported.

Time frame: Baseline, Week 12

DB Period: Change From Baseline in Weekly Average Sleep Onset Latency (SOL) at Week 12

A sleep diary was designed to gather information about participant's daily sleep pattern. It measured night-time sleep assessments. SOL (in minutes) was calculated using the formula: Time of falling sleep - Time of trying to fall sleep. Baseline and Post-baseline weekly average data were calculated based on the mean of the data over the 7 days prior to and including the day at the Baseline or at the end of the corresponding week. In this outcome measure, change from Baseline in SOL at Week 12 is reported.

Time frame: Baseline, Week 12

DB Period: Percentage of Participants With Eczema Area Severity Index-50 (EASI-50) (Greater Than or Equal to [>=] 50% Improvement From Baseline) at Week 12

EASI evaluates severity of participants with AD (excluded scalp, palms, soles) based on severity of AD clinical signs and % of body surface area (BSA) affected. Severity of clinical signs of AD (erythema, induration/papulation, excoriation and lichenification) scored separately for each of 4 body regions (head and neck, upper limbs, trunk \[including axillae and groin\] and lower limbs \[including buttocks\]) on 4-point scale: 0= absent; 1= mild; 2= moderate; 3= severe. EASI area score was based upon % BSA with AD in each body region: 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), and 6 (90% to 100%). Total EASI score ranged from 0.0 to 72.0, higher scores = greater severity of AD. Percentage of participants with EASI-50 (\>=50% improvement from Baseline in EASI score) at Week 12 is reported in this outcome measure.

Time frame: Baseline, Week 12

DB Period: Percentage of Participants With Eczema Area Severity Index-75 (EASI-75) (>= 75% Improvement From Baseline) at Week 12

EASI evaluates severity of participants with AD (excluded scalp, palms, soles) based on severity of AD clinical signs and % BSA affected. Severity of clinical signs of AD (erythema, induration/papulation, excoriation and lichenification) scored separately for each of 4 body regions (head and neck, upper limbs, trunk \[including axillae and groin\] and lower limbs \[including buttocks\]) on 4-point scale: 0= absent; 1= mild; 2= moderate; 3= severe. EASI area score was based upon % BSA with AD in each body region: 0, 1 (1% to 9%), 2 (10% to 29%), 3 (30% to 49%), 4 (50% to 69%), 5 (70% to 89%), and 6 (90% to 100%). Total EASI score ranged from 0.0 to 72.0, higher scores = greater severity of AD. Percentage of participants with EASI-75 (\>=75% improvement from Baseline in EASI score) at Week 12 is reported in this outcome measure.

Time frame: Baseline, Week 12

DB Period: Change From Baseline in Patient Oriented Eczema Measure (POEM) Total Score at Week 12

The POEM was a 7-item, validated questionnaire used in clinical practice and clinical trials to assess disease symptoms in children and adults with AD. The format is participant response to 7 items (dryness, itching, flaking, cracking, sleep loss, bleeding, and weeping) based on symptom frequency during the past week (i.e., 0 = 'no days', 1 = '1 to 2 days', 2 = '3 to 4 days', 3 = '5 to 6' days, and 4 = 'every day'). The sum of the 7 items gives the total POEM score of 0 (absent disease) to 28 (severe disease). Higher scores indicated more severe disease and poor quality of life.

Time frame: Baseline, Week 12

DB Period: Change From Baseline in Dermatology Life Quality Index (DLQI) Total Score at Week 12

DLQI was a 10-item questionnaire that measures the impact of skin disease. Each question was evaluated on a 4-point scale ranged from 0 to 3 where, 0 = not at all, 1= a little, 2= a lot, 3= very much, where higher scores indicated more impact on quality of life. Scores from all 10 questions were added up to give DLQI total score range from 0 (not at all) to 30 (very much). Higher scores indicated more impact on quality of life of participants.

Time frame: Baseline, Week 12

DB Period: Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)

An Adverse Event (AE) was defined as any untoward medical occurrence in a participant who received study drug and did not necessarily have to have a causal relationship with the treatment. Serious adverse events (SAEs) were defined as any untoward medical occurrence that at any dose: resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, was a congenital anomaly/birth defect, was a medically important event. TEAEs were defined as AEs that developed, worsened or became serious during the TEAE period (from the first investigational medicinal product \[IMP\] administration to the last IMP administration + 14 days) in DB period.

Time frame: Baseline up to 14 days after last IMP administration (i.e., up to Week 12)

Entire Study Duration: Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)

An AE was defined as any untoward medical occurrence in a participant who received study drug and did not necessarily have to have a causal relationship with the treatment. SAEs were defined as any untoward medical occurrence that at any dose: resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, was a congenital anomaly/birth defect, was a medically important event. TEAEs were defined as AEs that developed, worsened or became serious during the TEAE period (from the first IMP administration to the last IMP administration + 14 days).

Time frame: Baseline up to 14 days after last IMP administration (i.e., up to Week 24)