NCT03956355

Brief Summary

This is a randomized, double-blind, vehicle-controlled Phase 3 study to evaluate the efficacy and safety of topical tapinarof cream, 1% once daily for the treatment of plaque psoriasis in adults. Approximately 500 adult subjects with plaque psoriasis will be randomized 2:1 to receive either tapinarof cream, 1% or matching vehicle cream once daily for 12 weeks.

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
510

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started May 2019

Shorter than P25 for phase_3

Geographic Reach
2 countries

53 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 16, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

May 20, 2019

Completed
1 day until next milestone

Study Start

First participant enrolled

May 21, 2019

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 26, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 26, 2020

Completed
2.4 years until next milestone

Results Posted

Study results publicly available

October 13, 2022

Completed
Last Updated

June 12, 2025

Status Verified

September 1, 2022

Enrollment Period

1 year

First QC Date

May 16, 2019

Results QC Date

June 21, 2022

Last Update Submit

May 30, 2025

Conditions

Keywords

Tapinarofplaque psoriasisadultphase 3topicaldouble-blindefficacysafetypsoriasis

Outcome Measures

Primary Outcomes (1)

  • Percent of Subjects Who Achieve a Physician Global Assessment (PGA) Score of Clear (0) or Almost Clear (1) With a Minimum 2-grade Improvement From Baseline at Week 12. Analyses Were Done Using Multiple Imputation

    The PGA is a clinical tool for assessing the current state/severity of a subject's psoriasis at a given timepoint. A static 5-point scale is used to grade lesions on the clinical characteristics of erythema, scaling, and plaque thickness/elevation. The PGA ranges from 0 to 4, and is calculated as Clear (0), Almost clear (1), Mild (2), Moderate (3), and Severe (4). Higher PGA scores represent more severe disease. Analyses were done using multiple imputation.

    Baseline to Week 12

Secondary Outcomes (4)

  • Percent of Subjects With ≥ 75% Improvement in Psoriasis Area and Severity Index (PASI) From Baseline at Week 12. Analyses Were Done Using Multiple Imputation.

    Baseline to Week 12

  • Percent of Subjects With a PGA Score of 0 or 1 at Week 12. Analyses Were Done Using Multiple Imputation.

    Baseline to Week 12

  • Mean Change in Percent of Total Body Surface Area (%BSA) Affected From Baseline to Week 12

    Baseline to Week 12

  • Percent of Subjects With ≥90% Improvement in PASI Score From Baseline to Week 12. Analyses Were Done Using Multiple Imputation.

    Baseline to Week 12

Study Arms (2)

Tapinarof (DMVT-505)

EXPERIMENTAL

Tapinarof (DMVT-505) Cream Group

Drug: Tapinarof

Vehicle Cream

PLACEBO COMPARATOR

Vehicle Cream Group

Drug: Vehicle Cream

Interventions

Tapinarof cream, 1%, applied once daily

Also known as: DMVT-505
Tapinarof (DMVT-505)

Vehicle cream applied once daily

Vehicle Cream

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male and female subjects ages 18 to 75 years with clinical diagnosis of chronic plaque psoriasis and stable disease for at least 6 months prior to the study.
  • BSA involvement ≥ 3% and ≤ 20%
  • A PGA score of 2 (mild), 3 (moderate) or 4 (severe) at screening and baseline
  • Females of child bearing potential and male subjects who are engaging in sexual activity that could lead to pregnancy agree to follow the specified contraceptive guidance throughout the study, including screening, during the treatment period, and for at least 4 weeks after the last exposure to study treatment
  • Capable of giving written informed consent

You may not qualify if:

  • Psoriasis other than plaque variant
  • Any sign of infection of any of the psoriatic lesions
  • Concurrent conditions or history of other diseases:
  • Immunocompromised at Screening
  • Chronic or acute infection requiring treatment with systemic antibiotics, antivirals, antiparasitics, antiprotozoals, or antifungals within 4 weeks prior to the Baseline visit
  • Acute active bacterial, fungal, or viral (herpes simplex, herpes zoster, chicken pox) skin infection within 1 week prior to the Baseline visit
  • Significant dermatologic or inflammatory condition other than plaque psoriasis that, in the Investigator's opinion, would make it difficult to interpret data or assessments during the study
  • Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) ≥ 1.5x the upper limit of normal (ULN)
  • Total bilirubin \> 1.5 x ULN; total bilirubin \> ULN and ≤ 1.5 x ULN is acceptable if bilirubin is fractionated and direct bilirubin \< 35%
  • Corrected QT interval \> 475
  • Current or chronic history of liver disease, known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones), presence of hepatitis B surface antigen (HBsAg), or positive hepatitis C antibody test result, or a positive anti-hepatitis B core antigen (anti-HBc) result
  • Ultraviolet (UV) light therapy or prolonged exposure to natural or artificial sources of UV radiation within 4 weeks prior to the Baseline visit and/or plans to have such exposures during the study which could potentially impact the subject's psoriasis
  • Use of any prohibited medication within the indicated period before the first dose of study drug
  • Within a minimum of 5 half-lives for biologic agents:
  • Within 4 weeks for systemic immunosuppressive or immunomodulating agents, fumaric acid derivatives, vitamin D3 and analogs, retinoids, psoralens, corticosteroids, adrenocorticotropic hormone analogs, and tazarotene
  • +9 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (53)

Dermavant Investigative Site

Birmingham, Alabama, 35205, United States

Location

Dermavant Investigative Site

Phoenix, Arizona, 85032, United States

Location

Dermavant Investigative Site

Hot Springs, Arkansas, 71913, United States

Location

Dermavant Investigative Site

Rogers, Arkansas, 72758, United States

Location

Dermavant Investigative Site

Anaheim Hills, California, 92807, United States

Location

Dermavant Investigative Site

Fresno, California, 93720, United States

Location

Dermavant Investigative Site

Los Angeles, California, 90033, United States

Location

Dermavant Investigative Site

Northridge, California, 91324, United States

Location

Dermavant Investigative Site

San Diego, California, 92123, United States

Location

Dermavant Investigative Site

Santa Ana, California, 92701, United States

Location

Dermavant Investigative Site

Cromwell, Connecticut, 06416, United States

Location

Dermavant Investigative Site

Boca Raton, Florida, 33431, United States

Location

Dermavant Investigative Site

Brandon, Florida, 33511, United States

Location

Dermavant Investigative Site

Hialeah, Florida, 33016, United States

Location

Dermavant Investigative Site

Miramar, Florida, 33027, United States

Location

Dermavant Investigative Site

Marietta, Georgia, 30060, United States

Location

Dermavant Investigative Site

Evansville, Indiana, 47714, United States

Location

Dermavant Investigative Site

Indianapolis, Indiana, 46250, United States

Location

Dermavant Investigative Site

New Albany, Indiana, 47150, United States

Location

Dermavant Investigative Site

Louisville, Kentucky, 40202, United States

Location

Dermavant Investigative Site

Owensboro, Kentucky, 42301, United States

Location

Dermavant Investigative Site

Baton Rouge, Louisiana, 70809, United States

Location

Dermavant Investigative Site

New Orleans, Louisiana, 70112, United States

Location

Dermavant Investigative Site

New Orleans, Louisiana, 70115, United States

Location

Dermavant Investigative Site

Boston, Massachusetts, 02115, United States

Location

Dermavant Investigative Site

Clarkston, Michigan, 48346, United States

Location

Dermavant Investigative Site

Warren, Michigan, 48088, United States

Location

Dermavant Investigative Site

Saint Joseph, Missouri, 64506, United States

Location

Dermavant Investigative Site

Verona, New Jersey, 07044, United States

Location

Dermavant Investigative Site

Kew Gardens, New York, 11374, United States

Location

Dermavant Investigative Site

New York, New York, 10029, United States

Location

Dermavant Investigative Site

Rochester, New York, 14623, United States

Location

Dermavant Investigative Site

Cary, North Carolina, 27518, United States

Location

Dermavant Investigative Site

High Point, North Carolina, 27262, United States

Location

Dermavant Investigative Site

Norman, Oklahoma, 73071, United States

Location

Dermavant Investigative Site

Portland, Oregon, 97210, United States

Location

Dermavant Investigative Site

Pittsburgh, Pennsylvania, 15213, United States

Location

Dermavant Investigative Site

Johnston, Rhode Island, 02919, United States

Location

Dermavant Investigative Site

Arlington, Texas, 76011, United States

Location

Dermavant Investigative Site

College Station, Texas, 77802, United States

Location

Dermavant Investigative Site

Dripping Springs, Texas, 78620, United States

Location

Dermavant Investigative Site

Houston, Texas, 77004, United States

Location

Dermavant Investigative Site

San Antonio, Texas, 78213, United States

Location

Dermavant Investigative Site

West Jordan, Utah, 84088, United States

Location

Dermavant Investigative Site

Saint Johns, Newfoundland and Labrador, A1C 2H5, Canada

Location

Dermavant Investigative Site

Ajax, Ontario, L1S 7K8, Canada

Location

Dermavant Investigative Site

Coburg, Ontario, K9A 0Z4, Canada

Location

Dermavant Investigative Site

North Bay, Ontario, P1B 3Z7, Canada

Location

Dermavant Investigative Site

Richmond Hill, Ontario, L4C 9M7, Canada

Location

Dermavant Investigative Site

Toronto, Ontario, M3H 5Y8, Canada

Location

Dermavant Investigative Site

Waterloo, Ontario, N2J 1C4, Canada

Location

Dermavant Investigative Site

Windsor, Ontario, N8W 5L7, Canada

Location

Dermavant Investigative Site

Montreal, Quebec, H2X 2V1, Canada

Location

Related Publications (4)

  • Lebwohl MG, Stein Gold L, Strober B, Papp KA, Armstrong AW, Bagel J, Kircik L, Ehst B, Hong HC, Soung J, Fromowitz J, Guenthner S, Piscitelli SC, Rubenstein DS, Brown PM, Tallman AM, Bissonnette R. Phase 3 Trials of Tapinarof Cream for Plaque Psoriasis. N Engl J Med. 2021 Dec 9;385(24):2219-2229. doi: 10.1056/NEJMoa2103629.

  • Gold LS, Bruno MJ, Lewitt GM, Hebert AA. Characteristics and management of follicular events and contact dermatitis in patients using tapinarof cream for the treatment of atopic dermatitis or plaque psoriasis. J Dermatolog Treat. 2025 Dec;36(1):2517388. doi: 10.1080/09546634.2025.2517388. Epub 2025 Jul 2.

  • Kircik L, Zirwas M, Kwatra SG, Lewitt GM, Glover H, Chao T, Brown PM, Rubenstein DS, Tallman AM. Rapid Improvements in Itch with Tapinarof Cream 1% Once Daily in Two Phase 3 Trials in Adults with Mild to Severe Plaque Psoriasis. Dermatol Ther (Heidelb). 2024 Jan;14(1):201-211. doi: 10.1007/s13555-023-01068-x. Epub 2023 Dec 21.

  • Desai SR, Stein Gold L, Cameron MC, Golant A, Lewitt GM, Bruno MJ, Martin G, Brown PM, Rubenstein DS, Butners V, Tallman AM. Tapinarof Cream 1% Once Daily for the Treatment of Plaque Psoriasis: Case Photography of Clinical Outcomes from Three Phase 3 Trials. Dermatol Ther (Heidelb). 2023 Oct;13(10):2443-2460. doi: 10.1007/s13555-023-01008-9. Epub 2023 Sep 11.

MeSH Terms

Conditions

Psoriasis

Interventions

tapinarof

Condition Hierarchy (Ancestors)

Skin Diseases, PapulosquamousSkin DiseasesSkin and Connective Tissue Diseases

Results Point of Contact

Title
Clinical Lead, Late-Stage Clinical Development
Organization
Organon and Co

Study Officials

  • Victoria Butners

    Dermavant Sciences GmbH

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
The Investigator, study center staff, subject, and Sponsor will be blinded to treatment assignment.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Following a 34-day screening period, eligible subjects will be randomized at a 2:1 ratio to receive once daily treatment with tapinarof cream, 1% or vehicle cream.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 16, 2019

First Posted

May 20, 2019

Study Start

May 21, 2019

Primary Completion

May 26, 2020

Study Completion

May 26, 2020

Last Updated

June 12, 2025

Results First Posted

October 13, 2022

Record last verified: 2022-09

Data Sharing

IPD Sharing
Will not share

Locations