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A Study of JNJ-95475939 in the Treatment of Participants With Moderate to Severe Atopic Dermatitis (AD)

A Phase 2b, Multicenter, Randomized, Double-blind, Placebo- and Active-controlled, Dose Ranging Study to Evaluate the Efficacy and Safety of JNJ-95475939 for the Treatment of Participants With Moderate to Severe AD

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06881251
Acronym
DUPLEX-AD
Enrollment
256
Registered
2025-03-18
Start date
2025-02-26
Completion date
2026-03-26
Last updated
2026-03-13

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

Conditions

Dermatitis, Atopic

Brief summary

The purpose of this study is to evaluate how well JNJ-95475939 works as compared to placebo in participants with moderate to severe atopic dermatitis.

Interventions

DRUGDupilumab

Dupilumab will be administered subcutaneously.

JNJ-95475939 will be administered subcutaneously.

DRUGPlacebo

Placebo will be administered subcutaneously.

Sponsors

Janssen Research & Development, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Chronic Atopic Dermatitis (AD), according to American Academy of Dermatology Consensus Criteria with onset of symptoms at least 1 year prior to the screening visit * Eczema Area and Severity Index (EASI) score greater than and equal to (\>=) 16 at the screening and baseline visits * Validated investigator global assessment for AD (vIGA-AD) score \>= 3 at the screening and baseline visits * \>= 10% body surface area (BSA) of AD involvement at the screening and baseline visits * Baseline Peak Pruritus Numeric(al) Rating Scale (PP-NRS) average score of \>=4 * Documented history (within 6 months before screening) of either inadequate response or inadvisability to topical treatments, or inadequate response to systemic therapies (within 12 months before screening) * Participant has applied a moisturizer at least once daily for at least 7 days before the baseline visit

Exclusion criteria

* Experienced primary efficacy failure (no response within 16 weeks) or an adverse event (AE) requiring discontinuation related to agents (eg, severe ocular surface disease, dupilumab-associated facial redness) inhibiting IL-4Rα, IL-4, and/or IL-13 signaling (eg, dupilumab, lebrikizumab, or tralokinumab) * Participant is pregnant or breastfeeding, or planning to become pregnant or breastfeed during the study * Active skin disease other than AD including eczema herpeticum, molluscum contagiosum, impetigo, psoriasis or has any other ongoing significant skin condition including skin infections, that, according to the investigator, could interfere with efficacy assessments * Current diagnosis or signs or symptoms of severe, progressive, or uncontrolled renal, cardiac, vascular, pulmonary, gastrointestinal, endocrine, neurologic, hematologic, rheumatologic, psychiatric, or metabolic disturbances * Recent case of eczema herpeticum, herpes zoster within 8 weeks before screening, or history of recurrent eczema herpeticum * History of chronic or recurrent infectious disease, including but not limited to chronic renal infection, chronic chest infection (eg, untreated latent tuberculosis), recurrent urinary tract infection, fungal infection, mycobacterial infection, or open, draining, or infected skin wounds, or ulcers. * Diagnosed active parasitic infection or at high risk of parasitic infection, unless treated with antihelminth therapy prior to randomization * Had major surgery (eg, requiring general anesthesia and hospitalization), within 8 weeks before screening, or will not have fully recovered from surgery, or has such surgery planned during the time the participant is expected to participate in the study

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants with Eczema Area and Severity Index (EASI) 75 Response at Week 12Baseline, Week 12EASI-75 response is defined as at least 75 percent (%) improvement in EASI total score. EASI-75 response is defined as at least 75% improvement from baseline in EASI total score. The EASI score is used to measure the severity and extent of atopic dermatitis (AD) and measures erythema, infiltration/papulation, excoriation and lichenification on 4 anatomic regions of the body: head/neck, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting a higher severity of AD.

Secondary

MeasureTime frameDescription
Percentage of Participants With EASI-90 Response at Week 12Baseline, Week 12EASI-90 response is defined as at least 90% improvement in EASI total score. EASI-90 response is defined as at least 90% improvement from baseline in EASI total score. The EASI score is used to measure the severity and extent of AD and measures erythema, infiltration/papulation, excoriation and lichenification on 4 anatomic regions of the body: head/neck, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting a higher severity of AD.
Percentage of Participants With EASI-100 Response at Week 12Baseline, Week 12EASI-100 response is defined as at least 100% improvement in EASI total score. EASI-100 response is defined as at least 100% improvement from baseline in EASI total score. The EASI score is used to measure the severity and extent of AD and measures erythema, infiltration/papulation, excoriation and lichenification on 4 anatomic regions of the body: head/neck, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting a higher severity of AD.
Percentage of Participants Achieving Validated Investigator Global Assessment for Atopic Dermatitis (vIGA-AD) Score of 0 or 1 and a Reduction From Baseline of Greater Than Equal to (>=) 2 Points at Week 12Baseline, Week 12vIGA-AD is an assessment instrument used in clinical studies to rate the severity of AD, based on a 5-point scale ranging from 0, where 0=Clear: No inflammatory signs of AD; 1=almost clear: Barely perceptible erythema, induration/papulation and/or lichenification; 2=mild: Slight but definite erythema, induration/papulation and/or minimal lichenification. No oozing or crusting; 3=moderate: Clearly perceptible erythema, induration/papulation and/or lichenification, oozing or crusting may be present and 4=severe: Marked erythema, induration/papulation and/or lichenification; Oozing or crusting may be present. Higher scores are indicative of a more severe AD.
Percentage of Participants Achieving vIGA-AD Score of 0 and a Reduction From Baseline of >= 2 Points at Week 12Baseline, Week 12vIGA-AD is an assessment instrument used in clinical studies to rate the severity of AD, based on a 5-point scale ranging from 0, where 0=Clear: No inflammatory signs of AD; 1=almost clear: Barely perceptible erythema, induration/papulation and/or lichenification; 2=mild: Slight but definite erythema, induration/papulation and/or minimal lichenification. No oozing or crusting; 3=moderate: Clearly perceptible erythema, induration/papulation and/or lichenification, oozing or crusting may be present and 4=severe: Marked erythema, induration/papulation and/or lichenification; Oozing or crusting may be present. Higher scores are indicative of a more severe AD.
Percent Change From Baseline in the EASI Total Score at Week 12Baseline, Week 12The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. The EASI score is used to measure the severity and extent of AD and measures erythema, infiltration/papulation, excoriation and lichenification on 4 anatomic regions of the body: head/neck, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting a higher severity of AD.
Percentage of Participants Achieving a >= 4-Point Reduction in Skin Pain Numerical Rating Scale (NRS) Score From Baseline to Week 12Baseline, Week 12The Skin Pain NRS is a single item asking participants to assess their worst skin pain over the past 24 hours. The response categories range from 0 (no pain) to 10 (worst pain). Higher scores indicating greater severity.
Percent Change from Baseline in Peak Pruritus Numerical Rating Scale (PP-NRS) Score at Week 12Baseline, Week 12The PP-NRS is a single item asking participants to assess their worst itch over the past 24 hours. The response categories range from 0 (no pain) to 10 (worst pain). Higher scores indicating greater severity.
Percent Change from Baseline in Skin Pain NRS Score at Week 12Baseline, Week 12The Skin Pain NRS is a single item asking participants to assess their worst skin pain over the past 24 hours. The response categories range from 0 (no pain) to 10 (worst pain). Higher scores indicating greater severity.
Percent Change from Baseline in the Score of Item 2 of the AD Sleep Scale at Week 12Baseline, Week 12The AD sleep scale is a validated 3-item PRO instrument to capture self-reported impact of itch on sleep disturbance each day, including difficulty falling asleep, number of night-time awakenings, and difficulty falling back asleep after waking during the previous night. Each AD Sleep Scale item is scored individually. For Item 2, participants select the number of times they woke up each night, ranging from 0 to 29 times.
Percentage of Participants Achieving a >= 4-Point Reduction in PP-NRS Score From Baseline Through Week 12From Baseline through Week 12The PP-NRS is a single item asking participants to assess their worst itch over the past 24 hours. The response categories range from 0 (no pain) to 10 (worst pain). Higher scores indicating greater severity.
Percentage of Participants with EASI-75 Response at Week 16Baseline, Week 16EASI-75 response is defined as at least 75% improvement in EASI total score. EASI-75 response is defined as at least 75% improvement from baseline in EASI total score. The EASI score is used to measure the severity and extent of AD and measures erythema, infiltration/papulation, excoriation and lichenification on 4 anatomic regions of the body: head/neck, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting a higher severity of AD.
Percentage of Participants with EASI-90 Response at Week 16Baseline, Week 16EASI-90 response is defined as at least 90% improvement in EASI total score. EASI-90 response is defined as at least 90% improvement from baseline in EASI total score. The EASI score is used to measure the severity and extent of AD and measures erythema, infiltration/papulation, excoriation and lichenification on 4 anatomic regions of the body: head/neck, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting a higher severity of AD.
Percentage of Participants with EASI-100 Response at Week 16Week 16EASI-100 response is defined as at least 100% improvement in EASI total score. EASI-100 response is defined as at least 100% improvement from baseline in EASI total score. The EASI score was used to measure the severity and extent of AD and measures erythema, infiltration/papulation, excoriation and lichenification on 4 anatomic regions of the body: head/neck, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting a higher severity of AD.
Percentage of Participants Achieving vIGA-AD Score of 0 or 1 and a Reduction From Baseline of >= 2 Points at Week 16Baseline, Week 16vIGA-AD is an assessment instrument used in clinical studies to rate the severity of AD, based on a 5-point scale ranging from 0, where 0=Clear: No inflammatory signs of AD; 1=almost clear: Barely perceptible erythema, induration/papulation and/or lichenification; 2=mild: Slight but definite erythema, induration/papulation and/or minimal lichenification. No oozing or crusting; 3=moderate: Clearly perceptible erythema, induration/papulation and/or lichenification, oozing or crusting may be present and 4=severe: Marked erythema, induration/papulation and/or lichenification; Oozing or crusting may be present. Higher scores are indicative of a more severe AD.
Percentage of Participants Achieving vIGA-AD Score of 0 and a Reduction From Baseline of >= 2 Points at Week 16Baseline, Week 16vIGA-AD is an assessment instrument used in clinical studies to rate the severity of AD, based on a 5-point scale ranging from 0, where 0=Clear: No inflammatory signs of AD; 1=almost clear: Barely perceptible erythema, induration/papulation and/or lichenification; 2=mild: Slight but definite erythema, induration/papulation and/or minimal lichenification. No oozing or crusting; 3=moderate: Clearly perceptible erythema, induration/papulation and/or lichenification, oozing or crusting may be present and 4=severe: Marked erythema, induration/papulation and/or lichenification; Oozing or crusting may be present. Higher scores are indicative of a more severe AD.
Percent Change from Baseline in the EASI Total Score at Week 16Baseline, Week 16The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. The EASI score is used to measure the severity and extent of AD and measures erythema, infiltration/papulation, excoriation and lichenification on 4 anatomic regions of the body: head/neck, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting a higher severity of AD.
Percent Change from Baseline in PP-NRS Score at Week 16Baseline, Week 16The PP-NRS is a single item asking participants to assess their worst itch over the past 24 hours. The response categories range from 0 (no pain) to 10 (worst pain). Higher scores indicating greater severity.
Percent Change from Baseline in Skin Pain NRS Score at Week 16Baseline, Week 16The Skin Pain NRS is a single item asking participants to assess their worst skin pain over the past 24 hours. The response categories range from 0 (no pain) to 10 (worst pain). Higher scores indicating greater severity.
Percent Change from Baseline in the Score of Item 2 of the AD Sleep Scale at Week 16Baseline, Week 16The AD sleep scale is a validated 3-item PRO instrument to capture self-reported impact of itch on sleep disturbance each day, including difficulty falling asleep, number of night-time awakenings, and difficulty falling back asleep after waking during the previous night. Each AD Sleep Scale item is scored individually. For Item 2, participants select the number of times they woke up each night, ranging from 0 to 29 times.
Percentage of Participants Achieving a >= 4-Point Reduction in PP-NRS Score From Baseline Through Week 24From Baseline Through Week 24The PP-NRS is a single item asking participants to assess their worst itch over the past 24 hours. The response categories range from 0 (no pain) to 10 (worst pain). Higher scores indicating greater severity.
Percentage of Participants with EASI-75 Response at Week 24Baseline, Week 24EASI-75 response is defined as at least 75% improvement in EASI total score. EASI-75 response is defined as at least 75% improvement from baseline in EASI total score. The EASI score is used to measure the severity and extent of AD and measures erythema, infiltration/papulation, excoriation and lichenification on 4 anatomic regions of the body: head/neck, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting a higher severity of AD.
Percentage of Participants with EASI-90 Response at Week 24Week 24EASI-90 response is defined as at least 90% improvement in EASI total score. EASI-90 response is defined as at least 90% improvement from baseline in EASI total score. The EASI score is used to measure the severity and extent of AD and measures erythema, infiltration/papulation, excoriation and lichenification on 4 anatomic regions of the body: head/neck, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting a higher severity of AD.
Percentage of Participants with EASI-100 Response at Week 24Week 24EASI-100 response is defined as at least 100% improvement in EASI total score. EASI-100 response is defined as at least 100% improvement from baseline in EASI total score. The EASI score is used to measure the severity and extent of AD and measures erythema, infiltration/papulation, excoriation and lichenification on 4 anatomic regions of the body: head/neck, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting a higher severity of AD.
Percentage of Participants Achieving vIGA-AD Score of 0 or 1 and a Reduction From Baseline of >= 2 Points at Week 24Baseline, Week 24vIGA-AD is an assessment instrument used in clinical studies to rate the severity of AD, based on a 5-point scale ranging from 0, where 0=Clear: No inflammatory signs of AD; 1=almost clear: Barely perceptible erythema, induration/papulation and/or lichenification; 2=mild: Slight but definite erythema, induration/papulation and/or minimal lichenification. No oozing or crusting; 3=moderate: Clearly perceptible erythema, induration/papulation and/or lichenification, oozing or crusting may be present and 4=severe: Marked erythema, induration/papulation and/or lichenification; Oozing or crusting may be present. Higher scores are indicative of a more severe AD.
Percentage of Participants Achieving vIGA-AD Score of 0 and a Reduction From Baseline of >= 2 Points at Week 24Baseline, Week 24vIGA-AD is an assessment instrument used in clinical studies to rate the severity of AD, based on a 5-point scale ranging from 0, where 0=Clear: No inflammatory signs of AD; 1=almost clear: Barely perceptible erythema, induration/papulation and/or lichenification; 2=mild: Slight but definite erythema, induration/papulation and/or minimal lichenification. No oozing or crusting; 3=moderate: Clearly perceptible erythema, induration/papulation and/or lichenification, oozing or crusting may be present and 4=severe: Marked erythema, induration/papulation and/or lichenification; Oozing or crusting may be present. Higher scores are indicative of a more severe AD.
Percent Change from Baseline in the EASI Total Score at Week 24Baseline, Week 24The EASI is a validated measure used in clinical practice and clinical trials to assess the severity and extent of AD. The EASI score is used to measure the severity and extent of AD and measures erythema, infiltration/papulation, excoriation and lichenification on 4 anatomic regions of the body: head/neck, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting a higher severity of AD.
Percentage of Participants Achieving a >= 4-Point Reduction in Skin Pain NRS Score From Baseline to Week 24Baseline, Week 24The Skin Pain NRS is a single item asking participants to assess their worst skin pain over the past 24 hours. The response categories range from 0 (no pain) to 10 (worst pain). Higher scores indicating greater severity.
Percent Change From Baseline in PP-NRS Score at Week 24Baseline, Week 24The PP-NRS is a single item asking participants to assess their worst itch over the past 24 hours. The response categories range from 0 (no pain) to 10 (worst pain). Higher scores indicating greater severity.
Percent Change from Baseline in Skin Pain NRS Score at Week 24Baseline, Week 24The Skin Pain NRS is a single item asking participants to assess their worst skin pain over the past 24 hours. The response categories range from 0 (no pain) to 10 (worst pain). Higher scores indicating greater severity.
Percent Change from Baseline in the Score of Item 2 of the AD Sleep Scale at Week 24Baseline, Week 24The AD sleep scale is a validated 3-item PRO instrument to capture self-reported impact of itch on sleep disturbance each day, including difficulty falling asleep, number of night-time awakenings, and difficulty falling back asleep after waking during the previous night. Each AD Sleep Scale item is scored individually. For Item 2, participants select the number of times they woke up each night, ranging from 0 to 29 times.
Percentage of Participants Achieving a >= 4-Point Reduction in Skin Pain Numerical Rating Scale (NRS) Score From Baseline to Week 16Baseline, Week 16The Skin Pain NRS is a single item asking participants to assess their worst skin pain over the past 24 hours. The response categories range from 0 (no pain) to 10 (worst pain). Higher scores indicating greater severity.
Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs)From Baseline up to Week 36Participants with AEs and SAEs will be reported. An AE can be any unfavorable and unintended sign (including an abnormal finding), symptom, or disease temporally associated with the use of a medicinal (investigational or non investigational) product, whether or not related to that medicinal (investigational or non investigational) product. TEAEs are AEs with onset during the intervention phase or that are a consequence of a preexisting condition that has worsened since baseline. A SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability or incapacity; congenital anomaly.

Countries

Argentina, Brazil, Canada, Germany, Japan, Poland, Spain, United Kingdom, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 14, 2026