A Multicenter, Randomized, Double-Blind, Placebo-Controlled Phase Ⅲ Study to Evaluate the Efficacy and Safety of WD-890 Tablets for the Treatment of Moderate to Severe Plaque Psoriasis

June 26, 2026 updated by: Zhejiang Wenda Pharma Technology LTD.
The purpose of the study is to evaluate the experimental medication WD-890 compared to placebo in participants with moderate-to-severe plaque psoriasis.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

375

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • China
    • Jiangsu
      • Nanjing, Jiangsu, China, 210042
        • Recruiting
        • Hospital of Dermatology, Chinese Academy of Medical Sciences
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Male or female participant aged 18 to 75 years(inclusive)at the time of informed consent.
  • Diagnosis of plaque psoriasis for at least 6 months prior to the screening visit.
  • Body surface area (BSA) ≥10%, Psoriasis Area and Severity Index (PASI) score ≥12 and static Physician's Global Assessment (sPGA) ≥3 at screening visit and randomization

Exclusion Criteria:

  • Participant has a nonplaque form of psoriasis (for example, erythrodermic, guttate, inverse, pustular,or drug induced psoriasis.)
  • Has uncontrolled arterial hypertension characterized by a systolic blood pressure (BP) ≥160 mm Hg or diastolic BP ≥100 mm Hg Note: Determined by 2 consecutive elevated readings. If an initial BP reading exceeds this limit, the BP may be repeated once after the subject has rested sitting for ≥10 minutes. If the repeat value is less than the criterion limits, the second value may be accepted
  • Class III or IV congestive heart failure by New York Heart Association Criteria

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Group 1:WD-890

Drug:WD-890

WD-890 tablet will be administered orally.
Drug: Drug:WD-890
WD-890 tablet will be administered orally.
Placebo Comparator: Group 2: Placebo

Drug: Placebo

Placebo tablet will be administered orally.
Drug: Drug: placebo
Placebo tablet will be administered orally.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Percentage of Participants Achieving Psoriasis Area Severity Index (PASI) 75 Score at Week 16
Time Frame: Screening up to Week 16
Screening up to Week 16
Percentage of Participants Who Achieved Physician's Global Assessment (PGA) Score of Clear (0) or Almost Clear (1) at Weeks 16
Time Frame: Screening up to Week 16
Screening up to Week 16

Secondary Outcome Measures

Outcome Measure
Time Frame
Percentage of Participants Who Achieved Physician's Global Assessment (PGA) Score of Clear (0) or Almost Clear (1) at Weeks 4, 8, 12, 20, 24, 28, 32, 36, 40, 44, 48, and 52.
Time Frame: Screening up to Week 52
Screening up to Week 52
Percentage of Participants Achieving PASI 90 Score at Weeks 4, 8, 12, 20, 24, 28, 32, 36, 40, 44, 48, and 52.
Time Frame: Screening up to Week 52
Screening up to Week 52
Percentage of Participants Achieving PASI 100 Score at at Weeks 4, 8, 12, 20, 24, 28, 32, 36, 40, 44, 48, and 52.
Time Frame: Screening up to Week 52
Screening up to Week 52
Change From Baseline in Dermatology Life Quality Index (DLQI) Total Score at at Weeks 4, 8, 12, 20, 24, 28, 32, 36, 40, 44, 48, and 52.
Time Frame: Screening up to Week 52
Screening up to Week 52

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Zhejiang Wenda Pharma Technology LTD.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 18, 2026

Primary Completion (Estimated)

November 30, 2026

Study Completion (Estimated)

July 30, 2027

Study Registration Dates

First Submitted

June 8, 2026

First Submitted That Met QC Criteria

June 26, 2026

First Posted (Actual)

June 29, 2026

Study Record Updates

Last Update Posted (Actual)

June 29, 2026

Last Update Submitted That Met QC Criteria

June 26, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • WENDA890PSO-003

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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