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Dr . Medical Information and Product Information Enquiry
medinfo@its.jnj.com


Dr Andrew Pink


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Be Part of Research - Trial Details - A study of JNJ-95475939 in the treatment of participants with moderate to severe atopic dermatitis

A study of JNJ-95475939 in the treatment of participants with moderate to severe atopic dermatitis

Not Recruiting

Open to: All Genders

Age: Mixed

Medical Conditions

Atopic dermatitis (AD)


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.


Atopic dermatitis (AD) is a common inflammatory skin condition which causes itchy, dry, red skin.
Biologically, AD is characterized by type-2 immune response dysregulation and skin barrier disruption worsened by the itch-scratch cycle.
JNJ-95475939 blocks the two important biological pathways (called Interleukin-4 [IL-4]/IL-13 and IL-31*) involved in the type-2 inflammation and itch-scratch cycle of AD.
*IL-4, IL-13 and IL-31 are proteins that regulate immune responses.
In this study, researchers want to learn how well JNJ-95475939 works as compared to placebo and a comparator in participants with moderate to severe AD.

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

26 Feb 2025 22 Sep 2025

The study consists of three periods:
1. Screening period (up to 5 weeks): Eligible participants will be screened for participation in study.
2. Treatment period (up to 24 weeks): Participants will be randomly (by chance) assigned in one of the 5 treatment groups:
Group A: Dupilumab Dose regimen 1 is administered subcutaneously (SC; under the skin) for 24 weeks.
Group B: JNJ-95475939 Dose regimen 1 SC for 24 weeks.
Group C: JNJ-95475939 Dose regimen 2 SC for 24 weeks.
Group D: JNJ-95475939 dose regimen 3 SC for 24 weeks.
Group E: Placebo SC for 12 weeks, then switch to JNJ-95475939 Dose regimen 1 SC for another 12 weeks
3. Follow-up period (up to 12 weeks): Participants will be followed up to monitor their health.
Safety assessments will include physical examinations, body weight, vital signs, 12-lead ECG, pregnancy testing, clinical laboratory tests, and monitoring of adverse events and serious adverse events. The overall duration of the study is up to 41 weeks.


Participants aged 18 years or older with moderate to severe AD.

You can take part if:



You may not be able to take part if:


1. 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)2. Participant is pregnant or breastfeeding, or planning to become pregnant or breastfeed during the study3. 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 assessments4. Current diagnosis or signs or symptoms of severe, progressive, or uncontrolled renal, cardiac, vascular, pulmonary, gastrointestinal, endocrine, neurologic, hematologic, rheumatologic, psychiatric, or metabolic disturbances5. Recent case of eczema herpeticum, herpes zoster within 8 weeks before screening, or history of recurrent eczema herpeticum6. 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.7. Diagnosed active parasitic infection or at high risk of parasitic infection, unless treated with antihelminth therapy prior to randomization8. 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


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • Salford Royal NHS Foundation Trust
    Stott Lane
    Salford
    M6 8HD
  • Northwick Park Hospital
    Watford Road
    Harrow
    HA1 3UJ
  • Royal London Hospital
    Whitechapel Road
    London
    E1 1FR
  • The Queen Elizabeth Hospital, King's Lynn, NHS Foundation Trust
    Queen Elizabeth Hospital Gayton Road
    King's Lynn
    PE30 4ET
  • Nomura Dermatology Clinic
    4 27 14 tanmachi Kanagawa ku Chario Tower 2F
    Yokohama
    221 0825
  • Guys and St Thomas NHS Foundation Trust
    Guys Hospital Great Maze Pond
    London
    SE1 9RT
  • INAER - Investigación en Alergias y Enfermedades Respiratorias
    Arenales 3146
    Buenos Aires
    C1425
  • CETI - Centro de Estudos em Terapias Inovadoras Ltda
    Avenida Agostinho Leao Junior 306
    Curitiba
    80.030-110
  • Dermatology Research Institute Inc
    8500 Blackfoot Trail SE Meadows Mile Professional Building Suite 310
    Calgary
    T2J 7E1
  • Studienzentrum Dr Schwarz Germany
    Bismarckstrasse 49
    Langenau
    89129
  • Specjalistyczny gabinet dermatologiczny Aplikacyjno Badawczy Marek Brzewski Pawel Brzewski Spolka Cywilna
    Zbozowa 2 25
    Krakow
    30 002
  • GRUPO DERMATOLOGICO Y ESTETICO PEDRO JAEN
    C Serrano 143
    Madrid
    28006
  • Arlington Center for Dermatology
    711 E. Lamar Blvd. Suite 200
    Arlington, TX
    76011

There is no established benefit to participants of this study. Based on scientific theory, taking JNJ-95475939 may improve AD. However, this cannot be guaranteed because JNJ-95475939 is still under investigation as a treatment, and it is not known whether JNJ-95475939 will work.
In addition, if participants are put into the placebo treatment group, they will receive placebo during the first 12 weeks before they are switched to JNJ-95475939 for another 12 weeks.
If participants are put in the dupilumab (active comparator) group, they will not receive JNJ-95475939 but a treatment already on the market.
Participants may experience some benefit from participation in the study that is not due to receiving the study drug but due to regular visits and assessments monitoring overall health.
Participation may help other people with AD in the future.
Participants may have side effects from the drugs or procedures used in this study that may be mild to severe and even life-threatening, and they can vary from person to person. The known potential risks include hypersensitivity (allergic reactions), injection-site reactions, parasitic infection, conjunctivitis/keratitis (inflammation of the surface of the eye[s]) after getting the study drug. The participant information sheet and informed consent form, which will be signed by every participant agreeing to participate in the study, includes a detailed section outlining the known risks to participating in the study.
Not all possible side effects and risks related to JNJ-95475939 are known at this moment.
During the study, the sponsor may learn new information about JNJ-95475939. The study doctor will tell participants as soon as possible about any new information that might make them change their mind about being in the study, such as new risks.
To minimize the risk associated with taking part in the study, participants are frequently
reviewed for any side effects and other medical events. Participants are educated to report any such events to their study doctor, who will provide appropriate medical care. Any serious side effects that are reported to the sponsor are thoroughly reviewed by the drug safety team.
There are no costs to participants to be in the study. The sponsor will pay for the study drug and tests that are part of the study. The participant will receive reasonable reimbursement for study-related costs (e.g., travel/parking costs).

Dr . Medical Information and Product Information Enquiry
medinfo@its.jnj.com


Dr Andrew Pink



The study is sponsored by Janssen-Cilag International NV and funded by Janssen Research and Development LLC.




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Read full details for Trial ID: ISRCTN16314965

Or CPMS: 65442

Last updated 13 April 2026

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