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A Study to Determine the Safety and Tolerability of Dupilumab (REGN668/SAR231893) in Patients Aged ≥6 to <18 Years With Atopic Dermatitis (Eczema)

A Phase 2a Study Investigating the Safety, Pharmacokinetics, Immunogenicity, and Exploratory Efficacy of Dupilumab in Patients Aged ≥6 to <18 Years With Atopic Dermatitis

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02407756
Enrollment
78
Registered
2015-04-03
Start date
2015-03-31
Completion date
2016-03-31
Last updated
2020-11-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Atopic Dermatitis

Keywords

Eczema

Brief summary

The primary objective of the study is to characterize the safety and pharmacokinetics (PK) of dupilumab in pediatric patients with moderate-to-severe atopic dermatitis (AD) (for adolescents ≥12 to \<18 years of age) or severe AD (for children ≥6 to \<12 years of age). The secondary objective of the study is to explore the immunogenicity and efficacy of dupilumab in pediatric patients with moderate-to-severe AD (for adolescents ≥12 to \<18 years of age) or severe AD (for children ≥6 to \<12 years of age).

Interventions

DRUGDupilumab

Sponsors

Sanofi
CollaboratorINDUSTRY
Regeneron Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
6 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: 1. Male or female patients ≥6 to \<18 years of age with a diagnosis of 1. Atopic Dermatitis whose disease cannot be adequately controlled with topical medications 2. Minimum disease severity, as defined by Investigator's Global Assessment (IGA) 1. IGA = 3 or 4 in adolescents ≥12 to \<18 year of age 2. IGA = 4 in children ≥6 to \<12 years of age Key

Exclusion criteria

1. Recent treatment (within specific time windows before the baseline visit) with systemic immunosuppressive agents for eg. Systemic corticosteroids, live (attenuated) vaccines and other investigational drugs including biologics 2. History of any of the following infections: 1. Any systemic infection requiring treatment within 4 weeks before the baseline visit 2. Superficial skin infections within 1 week before the baseline visit 3. Known history of HIV infection 4. History of seropositivity to hepatitis B or C screening tests 5. History of clinical endoparasitosis (ie, helminthic infection) within 12 months before the baseline visit, or high risk of helminthic infection, unless subsequent medical assessments (e.g. stool exam, blood tests, etc.) have ruled out the possibility of parasite infection/infestation 3. History of malignancy within 5 years before the baseline visit 4. Persistent (confirmed by repeated tests ≥2 weeks apart) elevated transaminases (alanine aminotransferase \[ALT\] and/or aspartate aminotransferase \[AST\]) more than 3 times the upper limit of normal (ULN) during the screening period 5. Presence of any severe concomitant illness(es) that, in the investigator's judgment, would adversely affect the patient's participation in the study 6. Presence of skin comorbidities that may interfere with study assessments 7. Females patients who are pregnant or breastfeeding 8. Female patients who are of reproductive potential and are sexually active, who are unwilling to use adequate methods of contraception

Design outcomes

Primary

MeasureTime frameDescription
Pharmacokinetics (PK) of Dupilumab: Maximum Plasma Concentration Observed (Cmax) After Single AdministrationDay 2, 4, 8, 15, 22, 29, 36, 43, and 50Peak dupilumab concentration in serum following single dose administration. Analysis was performed on PK analysis set that included all treated subjects who received the study medication and had at least 1 quantified (non-missing) result for dupilumab concentration following the first dose of the study drug.
PK of Dupilumab: Area Under the Plasma Concentration Versus Time Curve (AUClast) After Single AdministrationDay 2, 4, 8, 15, 22, 29, 36, 43, and 50Mean AUC estimates were calculated using mean concentration data at each time point, using a non-compartmental approach (NCA). Calculated AUClast (computed from time zero to the time of the last positive concentration) are presented. Analysis was performed on PK analysis set that included all treated subjects who received the study medication and had at least 1 quantified (non-missing) result for dupilumab concentration following the first dose of the study drug.
PK of Dupilumab: Trough Dupilumab Concentration in Serum (Ctrough) Before 3rd and 4th Repeated DosePre-dose on Day 71 and Day 85Analysis was performed on PK analysis set that included all treated subjects who received the study medication and had at least 1 quantified (non-missing) result for dupilumab concentration following the first dose of study drug.

Secondary

MeasureTime frameDescription
Percentage of Subjects With Investigator Global Assessment (IGA) Score of 0 or 1 (Clear or Almost Clear) at Week 12Week 12IGA is an assessment scale used to determine severity of AD and clinical response to treatment on a 5-point scale (0 = clear; 1 = almost clear; 2 = mild; 3 = moderate; 4 = severe) based on erythema and papulation/infiltration. Therapeutic response is an IGA score of 0 (clear) or 1 (almost clear). Analysis was performed on SAF. Subjects with rescue treatment usage during the Part B period were specified as non-responders from the time the rescue was used.
Percent Reduction From Baseline in Eczema Area and Severity Index (EASI) at Week 12Baseline to Week 12 (one week after last dose)The EASI score was used to measure the severity and extent of atopic dermatitis (AD) and measures erythema, infiltration, excoriation and lichenification on 4 anatomic regions of the body: head, trunk, upper and lower extremities. The total EASI score ranges from 0 to 72 points, with the higher scores reflecting the worse severity of AD. Analysis was performed on safety analysis set (SAF) that included all subjects who received any study drug. Data after rescue treatment use during the Part B period were set to missing, then missing values were imputed by last observation carried forward (LOCF).
Percent Reduction From Baseline in Body Surface Area (BSA) at Week 12Baseline to Week 12Body surface area affected by AD was assessed for each section of the body (the possible highest score for each region was: head and neck \[9%\], anterior trunk \[18%\], back \[18%\], upper limbs \[18%\], lower limbs \[36%\], and genitals \[1%\]). It was reported as a percentage of all major body sections combined. Analysis was performed on SAF.
Percent Reduction From Baseline in SCORing Atopic Dermatitis (SCORAD) Score at Week 12Baseline to Week 12 (one week after last dose)SCORAD is a clinical tool for assessing the severity of atopic dermatitis developed by the European Task Force on Atopic Dermatitis (Severity scoring of atopic dermatitis: the SCORAD index. Consensus Report of the European Task Force on Atopic Dermatitis. Dermatology (Basel) 186 (1): 23-31. 1993). Extent and intensity of eczema as well as subjective signs (insomnia, etc.) are assessed and scored. Total score ranges from 0 \[absent disease\] to 103 \[severe disease\]). Analysis was performed on SAF. Data after rescue treatment use during the Part B period were set to missing, then missing values were imputed by LOCF.
Percent Reduction From Baseline in Pruritus Numerical Rating Scale (NRS) at Week 12Baseline to Week 12 (one week after last dose)Pruritus NRS scale is an assessment tool that is used to report the intensity of subject's pruritus (itch), both maximum and average intensity, during a 24-hour recall period. Subjects were asked the following question: how would a subject rate his itch at the worst moment during the previous 24 hours (for maximum itch intensity on a scale of 0 - 10 \[0 = no itch; 10 = worst itch imaginable\]). Analysis was performed on SAF. Data after rescue treatment use during the Part B period were set to missing, then missing values were imputed by LOCF.

Countries

Canada, Czechia, Germany, Hungary, Poland, United Kingdom

Participant flow

Recruitment details

The study was conducted at 25 sites in 6 countries. A total of 88 participants were screened, and of those, 78 participants were randomized with 77 being treated. Ten participants were screen failures as 5 were due to exclusion criteria met & inclusion criteria not met, 4 participants withdrew consent and 1 participant was lost to follow-up.

Pre-assignment details

A total of 40 adolescents (aged ≥12 to \<18 years) and 38 children (aged ≥6 to \<12 years) were enrolled and randomized to 2 sequential ascending dose cohorts: Cohort 1 (2 mg/kg) and Cohort 2 (4 mg/kg).

Participants by arm

ArmCount
Dupilumab 2mg/kg: Adolescents
Dupilumab 2 mg/kg as a single dose on Day 1 followed by 8-week PK sampling period then 4 repeated doses weekly in subjects aged between ≥12 to \<18 years.
20
Dupilumab 2mg/kg: Children
Dupilumab 2 mg/kg as a single dose on Day 1 followed by 8-week PK sampling period then 4 repeated doses weekly in subjects aged between ≥6 to \<12 years.
18
Dupilumab 4mg/kg: Adolescents
Dupilumab 4 mg/kg as a single dose on Day 1 followed by 8-week PK sampling period then 4 repeated doses weekly in subjects aged between ≥12 to \<18 years.
20
Dupilumab 4mg/kg: Children
Dupilumab 4 mg/kg as a single dose on Day 1 followed by 8-week PK sampling period then 4 repeated doses weekly in subjects aged between ≥6 to \<12 years.
19
Total77

Baseline characteristics

CharacteristicDupilumab 2mg/kg: ChildrenDupilumab 4mg/kg: AdolescentsDupilumab 4mg/kg: ChildrenDupilumab 2mg/kg: AdolescentsTotal
Age, Continuous8.2 years
STANDARD_DEVIATION 1.62
14.3 years
STANDARD_DEVIATION 1.66
8.2 years
STANDARD_DEVIATION 1.99
14.7 years
STANDARD_DEVIATION 2.01
11.5 years
STANDARD_DEVIATION 3.64
Body Surface Area (BSA) Involvement with Atopic Dermatitis (AD)59 Percentage of body surface area
STANDARD_DEVIATION 22.49
45.9 Percentage of body surface area
STANDARD_DEVIATION 25.34
62.3 Percentage of body surface area
STANDARD_DEVIATION 30.34
52.2 Percentage of body surface area
STANDARD_DEVIATION 24.78
54.6 Percentage of body surface area
STANDARD_DEVIATION 26.19
Eczema Area and Severity Index (EASI) score32.9 Score on a scale
STANDARD_DEVIATION 15.53
28.6 Score on a scale
STANDARD_DEVIATION 14.7
38.8 Score on a scale
STANDARD_DEVIATION 18.64
34.8 Score on a scale
STANDARD_DEVIATION 17
33.7 Score on a scale
STANDARD_DEVIATION 16.62
Ethnicity
Hispanic or Latino
0 Participants0 Participants1 Participants0 Participants1 Participants
Ethnicity
Not Hispanic or Latino
18 Participants20 Participants18 Participants20 Participants76 Participants
Number of Subjects with Investigator Global Assessment (IGA) score of 3 or 4
IGA score of 3
1 Participants11 Participants0 Participants8 Participants20 Participants
Number of Subjects with Investigator Global Assessment (IGA) score of 3 or 4
IGA score of 4
17 Participants9 Participants19 Participants12 Participants57 Participants
Pruritus Numerical Rating Scale (NRS)6.4 Score on a scale
STANDARD_DEVIATION 2.23
6.9 Score on a scale
STANDARD_DEVIATION 2.21
6.7 Score on a scale
STANDARD_DEVIATION 2.35
6.1 Score on a scale
STANDARD_DEVIATION 2.47
6.5 Score on a scale
STANDARD_DEVIATION 2.29
Race
Asian
0 Participants3 Participants0 Participants2 Participants5 Participants
Race
Black or African American
0 Participants1 Participants1 Participants0 Participants2 Participants
Race
Other
1 Participants1 Participants0 Participants1 Participants3 Participants
Race
White
17 Participants15 Participants18 Participants17 Participants67 Participants
SCORing Atopic Dermatitis (SCORAD) Score66.4 Score on a scale
STANDARD_DEVIATION 13.06
63 Score on a scale
STANDARD_DEVIATION 14.43
72.7 Score on a scale
STANDARD_DEVIATION 12.96
68 Score on a scale
STANDARD_DEVIATION 13.19
67.5 Score on a scale
STANDARD_DEVIATION 13.64
Sex: Female, Male
Female
9 Participants11 Participants8 Participants11 Participants39 Participants
Sex: Female, Male
Male
9 Participants9 Participants11 Participants9 Participants38 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 200 / 180 / 200 / 19
other
Total, other adverse events
11 / 2011 / 1816 / 2018 / 19
serious
Total, serious adverse events
1 / 200 / 181 / 202 / 19

Outcome results

Primary

Pharmacokinetics (PK) of Dupilumab: Maximum Plasma Concentration Observed (Cmax) After Single Administration

Peak dupilumab concentration in serum following single dose administration. Analysis was performed on PK analysis set that included all treated subjects who received the study medication and had at least 1 quantified (non-missing) result for dupilumab concentration following the first dose of the study drug.

Time frame: Day 2, 4, 8, 15, 22, 29, 36, 43, and 50

ArmMeasureValue (MEAN)Dispersion
Dupilumab 2mg/kg: AdolescentsPharmacokinetics (PK) of Dupilumab: Maximum Plasma Concentration Observed (Cmax) After Single Administration9.91 mg/LStandard Deviation 2.15
Dupilumab 2mg/kg: ChildrenPharmacokinetics (PK) of Dupilumab: Maximum Plasma Concentration Observed (Cmax) After Single Administration14.3 mg/LStandard Deviation 5.9
Dupilumab 4mg/kg: AdolescentsPharmacokinetics (PK) of Dupilumab: Maximum Plasma Concentration Observed (Cmax) After Single Administration23.1 mg/LStandard Deviation 8.71
Dupilumab 4mg/kg: ChildrenPharmacokinetics (PK) of Dupilumab: Maximum Plasma Concentration Observed (Cmax) After Single Administration32.4 mg/LStandard Deviation 7.04
Primary

PK of Dupilumab: Area Under the Plasma Concentration Versus Time Curve (AUClast) After Single Administration

Mean AUC estimates were calculated using mean concentration data at each time point, using a non-compartmental approach (NCA). Calculated AUClast (computed from time zero to the time of the last positive concentration) are presented. Analysis was performed on PK analysis set that included all treated subjects who received the study medication and had at least 1 quantified (non-missing) result for dupilumab concentration following the first dose of the study drug.

Time frame: Day 2, 4, 8, 15, 22, 29, 36, 43, and 50

ArmMeasureValue (MEAN)
Dupilumab 2mg/kg: AdolescentsPK of Dupilumab: Area Under the Plasma Concentration Versus Time Curve (AUClast) After Single Administration104 Day*mg/L
Dupilumab 2mg/kg: ChildrenPK of Dupilumab: Area Under the Plasma Concentration Versus Time Curve (AUClast) After Single Administration160 Day*mg/L
Dupilumab 4mg/kg: AdolescentsPK of Dupilumab: Area Under the Plasma Concentration Versus Time Curve (AUClast) After Single Administration362 Day*mg/L
Dupilumab 4mg/kg: ChildrenPK of Dupilumab: Area Under the Plasma Concentration Versus Time Curve (AUClast) After Single Administration330 Day*mg/L
Primary

PK of Dupilumab: Trough Dupilumab Concentration in Serum (Ctrough) Before 3rd and 4th Repeated Dose

Analysis was performed on PK analysis set that included all treated subjects who received the study medication and had at least 1 quantified (non-missing) result for dupilumab concentration following the first dose of study drug.

Time frame: Pre-dose on Day 71 and Day 85

ArmMeasureGroupValue (MEAN)Dispersion
Dupilumab 2mg/kg: AdolescentsPK of Dupilumab: Trough Dupilumab Concentration in Serum (Ctrough) Before 3rd and 4th Repeated DoseDay 8518.5 mg/LStandard Deviation 12.4
Dupilumab 2mg/kg: AdolescentsPK of Dupilumab: Trough Dupilumab Concentration in Serum (Ctrough) Before 3rd and 4th Repeated DoseDay 7110.4 mg/LStandard Deviation 7.16
Dupilumab 2mg/kg: ChildrenPK of Dupilumab: Trough Dupilumab Concentration in Serum (Ctrough) Before 3rd and 4th Repeated DoseDay 7117.2 mg/LStandard Deviation 8.44
Dupilumab 2mg/kg: ChildrenPK of Dupilumab: Trough Dupilumab Concentration in Serum (Ctrough) Before 3rd and 4th Repeated DoseDay 8528 mg/LStandard Deviation 12.9
Dupilumab 4mg/kg: AdolescentsPK of Dupilumab: Trough Dupilumab Concentration in Serum (Ctrough) Before 3rd and 4th Repeated DoseDay 8558.8 mg/LStandard Deviation 24.4
Dupilumab 4mg/kg: AdolescentsPK of Dupilumab: Trough Dupilumab Concentration in Serum (Ctrough) Before 3rd and 4th Repeated DoseDay 7132.8 mg/LStandard Deviation 18.9
Dupilumab 4mg/kg: ChildrenPK of Dupilumab: Trough Dupilumab Concentration in Serum (Ctrough) Before 3rd and 4th Repeated DoseDay 8560.3 mg/LStandard Deviation 36.3
Dupilumab 4mg/kg: ChildrenPK of Dupilumab: Trough Dupilumab Concentration in Serum (Ctrough) Before 3rd and 4th Repeated DoseDay 7142.1 mg/LStandard Deviation 19.4
Secondary

Percentage of Subjects With Investigator Global Assessment (IGA) Score of 0 or 1 (Clear or Almost Clear) at Week 12

IGA is an assessment scale used to determine severity of AD and clinical response to treatment on a 5-point scale (0 = clear; 1 = almost clear; 2 = mild; 3 = moderate; 4 = severe) based on erythema and papulation/infiltration. Therapeutic response is an IGA score of 0 (clear) or 1 (almost clear). Analysis was performed on SAF. Subjects with rescue treatment usage during the Part B period were specified as non-responders from the time the rescue was used.

Time frame: Week 12

ArmMeasureValue (NUMBER)
Dupilumab 2mg/kg: AdolescentsPercentage of Subjects With Investigator Global Assessment (IGA) Score of 0 or 1 (Clear or Almost Clear) at Week 1210 Percentage of subjects
Dupilumab 2mg/kg: ChildrenPercentage of Subjects With Investigator Global Assessment (IGA) Score of 0 or 1 (Clear or Almost Clear) at Week 1216.7 Percentage of subjects
Dupilumab 4mg/kg: AdolescentsPercentage of Subjects With Investigator Global Assessment (IGA) Score of 0 or 1 (Clear or Almost Clear) at Week 1235 Percentage of subjects
Dupilumab 4mg/kg: ChildrenPercentage of Subjects With Investigator Global Assessment (IGA) Score of 0 or 1 (Clear or Almost Clear) at Week 1221.1 Percentage of subjects
Secondary

Percent Reduction From Baseline in Body Surface Area (BSA) at Week 12

Body surface area affected by AD was assessed for each section of the body (the possible highest score for each region was: head and neck \[9%\], anterior trunk \[18%\], back \[18%\], upper limbs \[18%\], lower limbs \[36%\], and genitals \[1%\]). It was reported as a percentage of all major body sections combined. Analysis was performed on SAF.

Time frame: Baseline to Week 12

Population: Here Number of participants analyzed = number of participants who were evaluated for this specific outcome measure.

ArmMeasureValue (MEAN)Dispersion
Dupilumab 2mg/kg: AdolescentsPercent Reduction From Baseline in Body Surface Area (BSA) at Week 12-61 Percentage of body surface areaStandard Deviation 31.08
Dupilumab 2mg/kg: ChildrenPercent Reduction From Baseline in Body Surface Area (BSA) at Week 12-70 Percentage of body surface areaStandard Deviation 31.93
Dupilumab 4mg/kg: AdolescentsPercent Reduction From Baseline in Body Surface Area (BSA) at Week 12-60.4 Percentage of body surface areaStandard Deviation 34.04
Dupilumab 4mg/kg: ChildrenPercent Reduction From Baseline in Body Surface Area (BSA) at Week 12-50 Percentage of body surface areaStandard Deviation 30.8
Secondary

Percent Reduction From Baseline in Eczema Area and Severity Index (EASI) at Week 12

The EASI score was used to measure the severity and extent of atopic dermatitis (AD) and measures erythema, infiltration, excoriation and lichenification on 4 anatomic regions of the body: head, trunk, upper and lower extremities. The total EASI score ranges from 0 to 72 points, with the higher scores reflecting the worse severity of AD. Analysis was performed on safety analysis set (SAF) that included all subjects who received any study drug. Data after rescue treatment use during the Part B period were set to missing, then missing values were imputed by last observation carried forward (LOCF).

Time frame: Baseline to Week 12 (one week after last dose)

ArmMeasureValue (MEAN)Dispersion
Dupilumab 2mg/kg: AdolescentsPercent Reduction From Baseline in Eczema Area and Severity Index (EASI) at Week 12-66.4 percent changeStandard Deviation 29.25
Dupilumab 2mg/kg: ChildrenPercent Reduction From Baseline in Eczema Area and Severity Index (EASI) at Week 12-76.2 percent changeStandard Deviation 25.48
Dupilumab 4mg/kg: AdolescentsPercent Reduction From Baseline in Eczema Area and Severity Index (EASI) at Week 12-69.7 percent changeStandard Deviation 24.48
Dupilumab 4mg/kg: ChildrenPercent Reduction From Baseline in Eczema Area and Severity Index (EASI) at Week 12-63.4 percent changeStandard Deviation 25.37
Secondary

Percent Reduction From Baseline in Pruritus Numerical Rating Scale (NRS) at Week 12

Pruritus NRS scale is an assessment tool that is used to report the intensity of subject's pruritus (itch), both maximum and average intensity, during a 24-hour recall period. Subjects were asked the following question: how would a subject rate his itch at the worst moment during the previous 24 hours (for maximum itch intensity on a scale of 0 - 10 \[0 = no itch; 10 = worst itch imaginable\]). Analysis was performed on SAF. Data after rescue treatment use during the Part B period were set to missing, then missing values were imputed by LOCF.

Time frame: Baseline to Week 12 (one week after last dose)

ArmMeasureValue (MEAN)Dispersion
Dupilumab 2mg/kg: AdolescentsPercent Reduction From Baseline in Pruritus Numerical Rating Scale (NRS) at Week 12-30.8 Percent changeStandard Deviation 68.35
Dupilumab 2mg/kg: ChildrenPercent Reduction From Baseline in Pruritus Numerical Rating Scale (NRS) at Week 12-41.6 Percent changeStandard Deviation 35.32
Dupilumab 4mg/kg: AdolescentsPercent Reduction From Baseline in Pruritus Numerical Rating Scale (NRS) at Week 12-37.6 Percent changeStandard Deviation 34.42
Dupilumab 4mg/kg: ChildrenPercent Reduction From Baseline in Pruritus Numerical Rating Scale (NRS) at Week 12-39.6 Percent changeStandard Deviation 40.88
Secondary

Percent Reduction From Baseline in SCORing Atopic Dermatitis (SCORAD) Score at Week 12

SCORAD is a clinical tool for assessing the severity of atopic dermatitis developed by the European Task Force on Atopic Dermatitis (Severity scoring of atopic dermatitis: the SCORAD index. Consensus Report of the European Task Force on Atopic Dermatitis. Dermatology (Basel) 186 (1): 23-31. 1993). Extent and intensity of eczema as well as subjective signs (insomnia, etc.) are assessed and scored. Total score ranges from 0 \[absent disease\] to 103 \[severe disease\]). Analysis was performed on SAF. Data after rescue treatment use during the Part B period were set to missing, then missing values were imputed by LOCF.

Time frame: Baseline to Week 12 (one week after last dose)

ArmMeasureValue (MEAN)Dispersion
Dupilumab 2mg/kg: AdolescentsPercent Reduction From Baseline in SCORing Atopic Dermatitis (SCORAD) Score at Week 12-47.7 percent changeStandard Deviation 27.27
Dupilumab 2mg/kg: ChildrenPercent Reduction From Baseline in SCORing Atopic Dermatitis (SCORAD) Score at Week 12-57.5 percent changeStandard Deviation 23.1
Dupilumab 4mg/kg: AdolescentsPercent Reduction From Baseline in SCORing Atopic Dermatitis (SCORAD) Score at Week 12-43.4 percent changeStandard Deviation 25.38
Dupilumab 4mg/kg: ChildrenPercent Reduction From Baseline in SCORing Atopic Dermatitis (SCORAD) Score at Week 12-46.9 percent changeStandard Deviation 24.31

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026