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Moderate to Severe Atopic DermatitisPhase 3NCT07370909

Evaluation of the Efficacy and Safety of Oral LW402 Tablets for the Treatment of Patients With Moderate-to-Severe Atopic Dermatitis

A Phase 3 study testing LW402 in people with Moderate to Severe Atopic Dermatitis, run by Shanghai Longwood Biopharmaceuticals Co., Ltd. at 1 site in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This Phase 3, double-blind (sponsor-open), multicenter, placebo-controlled study aims to evaluate the efficacy and safety of oral LW402 tablets in patients with moderate to severe atopic dermatitis. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Moderate to Severe Atopic Dermatitis
What is being tested?
LW402
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
480 participants
Where
1 siteChina
Study dates
3 Mar 2026to 31 Dec 2028
Phase
Phase 3
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects voluntarily provided informed consent and agreed to participate in the study.
  • Gender: no restrictions; Age: 18 to 75 years inclusive (as of the date of signing the informed consent form).
  • At screening, subjects met the Hanifin-Rajka diagnostic criteria for atopic dermatitis (AD) (Appendix 4) and had a documented AD history of ≥1 year prior to screening.
  • At screening and baseline visits, subjects were required to have moderate-to-severe atopic dermatitis (AD) with all three of the following criteria satisfied:
  • Total AD lesion area ≥ 10% of body surface area (BSA)
  • Investigator's Global Assessment (IGA) score ≥ 3
  • Eczema Area and Severity Index (EASI) score ≥ 16

Who cannot join

  • Subjects with a documented history of hypersensitivity to Janus kinase (JAK) inhibitors.
  • Subjects with current or a history of autoimmune diseases other than atopic dermatitis (AD) (e.g., systemic lupus erythematosus [SLE], inflammatory bowel disease [IBD], Felty's syndrome, scleroderma, inflammatory myopathy, other connective tissue diseases, overlap syndrome) or other skin conditions that may interfere with AD assessment (e.g., contact dermatitis, psoriasis).

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

China1 site, 1 recruiting
  • Peking University People's Hospital

    Beijing

    Jianzhong Zhang

    Recruiting

Other trials in China

About this study

Official title: A Multi-center, Randomized, Double Blind, Placebo-controlled Phase III Study to Evaluate the Efficacy and Safety of LW402 Tablets in Patients With Moderate-to-severe Atopic Dermatitis.

This Phase 3, double-blind (sponsor-open), multicenter, placebo-controlled study aims to evaluate the efficacy and safety of oral LW402 tablets in patients with moderate to severe atopic dermatitis.

Being tested
LW402, Placebo

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LW402Drug

    LW402 tablets

  • PlaceboDrug

    LW402 placebo tablets

Study groups in NCT07370909
Study groupRoleWhat they receive
LW402 100 mg, PO BIDExperimentalNot described
Receives: Drug: LW402
LW402 150 mg, PO BIDExperimentalNot described
Receives: Drug: LW402
LW402 placebo tablets,PO.BIDPlacebo comparatorNot described
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Proportion of subjects achieving ≥75% improvement in Eczema Area and Severity Index (EASI) from baseline at Week 16 (EASI 75)

    Measured: Week 16

  2. Proportion of subjects achieving an Investigator's Global Assessment (IGA) score of 0 or 1 with a ≥2-point reduction from baseline at Week 16

    Measured: Week 16

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Jan 2026
  2. Study start3 Mar 2026
  3. Primary completion31 Mar 2028 (estimated)
  4. Study completion31 Dec 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
480 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07370909
Sponsor's protocol ID
LW402-III-02
Status last verified
Jan 2026
First submitted
19 Jan 2026
Last updated
27 Aug 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing LW402 in people with Moderate to Severe Atopic Dermatitis, run by Shanghai Longwood Biopharmaceuticals Co., Ltd. at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 27 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Barbara Chen (+86-21-63634910, barbara@lwbiopharma.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Proportion of subjects achieving ≥75% improvement in Eczema Area and Severity Index (EASI) from baseline at Week 16 (EASI 75) (time frame: Week 16). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Aug 2026.

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