Tapinarof for the Treatment of Plaque Psoriasis in Adults (3001)

Plaque Psoriasis Clinical Trial

Official title:

A Phase 3 Efficacy and Safety Study of Tapinarof for the Treatment of Plaque Psoriasis in Adults

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03956355
• Other study ID #: DMVT-505-3001
• Status: Completed
• Phase: Phase 3
• Start date: May 21, 2019
• Est. completion date: May 26, 2020

Study information

• Verified date: September 2022
• Source: Dermavant Sciences, Inc.
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial 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.

Description:

This study is a 12-week double-blind, vehicle-controlled treatment study in which subjects will be randomized to receive tapinarof cream, 1% or vehicle cream once daily for 12 weeks. At the end of the 12-week study treatment, qualified subjects completing the study will have the option to enter a separate open-label, long-term safety and efficacy study for an additional 40 weeks of treatment with tapinarof cream, 1%. Subjects who do not enroll in the open-label long-term study will complete a follow-up visit approximately 4 weeks after end of treatment in this study (at Week 16).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 510
• Est. completion date: May 26, 2020
• Est. primary completion date: May 26, 2020
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 75 Years

Eligibility

Inclusion Criteria:

• 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

Exclusion Criteria:

• 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

• 2 weeks for immunizations with a live viral component; drugs known to possibly worsen psoriasis, unless on a stable dose for > 12 weeks

• With the exception of non-medicated emollients, 2 weeks for topical treatments including corticosteroids, immunomodulators, anthralin (dithranol), vitamin D derivatives or coal tar.

• Pregnant females or lactating females

• History of sensitivity to the study drugs, or components thereof or a history of drug or other allergy that, in the opinion of the Investigator or Medical Monitor, contraindicates the subject's participation in the study

• The subject has received an investigational product within 30 days, 5 half-lives, or twice the duration of the biological effect of the study drug (whichever is longer) prior to first dose of study drug

• Current or a history of cancer within 5 years except for fully excised skin basal cell carcinoma, squamous cell carcinoma or carcinoma in situ of the cervix

• Subjects with active infection that required oral, intramuscular, or intravenous administration of antibiotics, antifungal or antiviral agents within 7 days of Baseline/Day 1

• Previous known participation in a clinical study with tapinarof

• Evidence of significant hepatic, renal, respiratory, endocrine, hematologic, neurologic, psychiatric, or cardiovascular (CV) system abnormalities or laboratory abnormality that will affect the health of the subject or interfere with interpretation of the results

Related Conditions & MeSH terms

• Plaque Psoriasis
• Psoriasis

Intervention

Drug:
• Tapinarof
Tapinarof cream, 1%, applied once daily
• Vehicle Cream
Vehicle cream applied once daily

Locations

Country	Name	City	State
Canada	Dermavant Investigative Site	Ajax	Ontario
Canada	Dermavant Investigative Site	Coburg	Ontario
Canada	Dermavant Investigative Site	Montréal	Quebec
Canada	Dermavant Investigative Site	North Bay	Ontario
Canada	Dermavant Investigative Site	Richmond Hill	Ontario
Canada	Dermavant Investigative Site	Saint Johns	Newfoundland and Labrador
Canada	Dermavant Investigative Site	Toronto	Ontario
Canada	Dermavant Investigative Site	Waterloo	Ontario
Canada	Dermavant Investigative Site	Windsor	Ontario
United States	Dermavant Investigative Site	Anaheim Hills	California
United States	Dermavant Investigative Site	Arlington	Texas
United States	Dermavant Investigative Site	Baton Rouge	Louisiana
United States	Dermavant Investigative Site	Birmingham	Alabama
United States	Dermavant Investigative Site	Boca Raton	Florida
United States	Dermavant Investigative Site	Boston	Massachusetts
United States	Dermavant Investigative Site	Brandon	Florida
United States	Dermavant Investigative Site	Cary	North Carolina
United States	Dermavant Investigative Site	Clarkston	Michigan
United States	Dermavant Investigative Site	College Station	Texas
United States	Dermavant Investigative Site	Cromwell	Connecticut
United States	Dermavant Investigative Site	Dripping Springs	Texas
United States	Dermavant Investigative Site	Evansville	Indiana
United States	Dermavant Investigative Site	Fresno	California
United States	Dermavant Investigative Site	Hialeah	Florida
United States	Dermavant Investigative Site	High Point	North Carolina
United States	Dermavant Investigative Site	Hot Springs	Arkansas
United States	Dermavant Investigative Site	Houston	Texas
United States	Dermavant Investigative Site	Indianapolis	Indiana
United States	Dermavant Investigative Site	Johnston	Rhode Island
United States	Dermavant Investigative Site	Kew Gardens	New York
United States	Dermavant Investigative Site	Los Angeles	California
United States	Dermavant Investigative Site	Louisville	Kentucky
United States	Dermavant Investigative Site	Marietta	Georgia
United States	Dermavant Investigative Site	Miramar	Florida
United States	Dermavant Investigative Site	New Albany	Indiana
United States	Dermavant Investigative Site	New Orleans	Louisiana
United States	Dermavant Investigative Site	New Orleans	Louisiana
United States	Dermavant Investigative Site	New York	New York
United States	Dermavant Investigative Site	Norman	Oklahoma
United States	Dermavant Investigative Site	Northridge	California
United States	Dermavant Investigative Site	Owensboro	Kentucky
United States	Dermavant Investigative Site	Phoenix	Arizona
United States	Dermavant Investigative Site	Pittsburgh	Pennsylvania
United States	Dermavant Investigative Site	Portland	Oregon
United States	Dermavant Investigative Site	Rochester	New York
United States	Dermavant Investigative Site	Rogers	Arkansas
United States	Dermavant Investigative Site	Saint Joseph	Missouri
United States	Dermavant Investigative Site	San Antonio	Texas
United States	Dermavant Investigative Site	San Diego	California
United States	Dermavant Investigative Site	Santa Ana	California
United States	Dermavant Investigative Site	Verona	New Jersey
United States	Dermavant Investigative Site	Warren	Michigan
United States	Dermavant Investigative Site	West Jordan	Utah

Sponsors (2)

Lead Sponsor	Collaborator
Dermavant Sciences GmbH	IQVIA Biotech

Countries where clinical trial is conducted

United States,  Canada, 

References & Publications (1)

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 — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	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	Percent of Subjects With = 75% Improvement in Psoriasis Area and Severity Index (PASI) From Baseline at Week 12. Analyses Were Done Using Multiple Imputation.	The Psoriasis Area and Severity Index (PASI) scoring system combines the assessment of lesion severity and extent of affected area into a single score: 0 (no disease) to 72 (maximal disease). The body is divided into 4 areas for scoring (head, arms, trunk, and legs). Each area is assessed for 3 signs: erythema (redness), induration (plaque thickness), and scale. The severity of each sign in each body area is assessed and scored independently using a 5-point scale, where 0=none, 1=slight, 2=mild, 3=moderate, 4=severe. Each area is also assessed for percent of skin involved: 0 = (0%), 1 = (1-<10%), 2 = (10-<30%), 3 = (30-<50%), 4 = (50 -<70%), 5 = (70-<90%), 6 = (90-100%). The individual scores are multiplied by a weighted factor for each body region; the sum of these scores gives the overall PASI score. Higher scores indicate more severe disease. PASI is a static assessment made without reference to previous scores. Analyses were done using multiple imputation.	Baseline to Week 12
Secondary	Percent of Subjects With a PGA Score of 0 or 1 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	Mean Change in Percent of Total Body Surface Area (%BSA) Affected From Baseline to Week 12	Assessment of BSA with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. Body regions are assigned specific number of handprints with percentage [Head and neck = 10% (10 handprints), upper extremities = 20% (20 handprints), Trunk (including axillae and groin) = 30% (30 handprints), lower extremities (including buttocks) = 40% (40 handprints)]. Estimates of the % involvement in each body region will be multiplied by the fraction of total body area to obtain the total %BSA involved by region and overall.	Baseline to Week 12
Secondary	Percent of Subjects With =90% Improvement in PASI Score From Baseline to Week 12. Analyses Were Done Using Multiple Imputation.	The Psoriasis Area and Severity Index (PASI) scoring system combines the assessment of lesion severity and extent of affected area into a single score: 0 (no disease) to 72 (maximal disease). The body is divided into 4 areas for scoring (head, arms, trunk, and legs). Each area is assessed for 3 signs: erythema (redness), induration (plaque thickness), and scale. The severity of each sign in each body area is assessed and scored independently using a 5-point scale, where 0=none, 1=slight, 2=mild, 3=moderate, 4=severe. Each area is also assessed for percent of skin involved: 0 = (0%), 1 = (1-<10%), 2 = (10-<30%), 3 = (30-<50%), 4 = (50 -<70%), 5 = (70-<90%), 6 = (90-100%). The individual scores are multiplied by a weighted factor for each body region; the sum of these scores gives the overall PASI score. Higher scores indicate more severe disease. PASI is a static assessment made without reference to previous scores. Analyses were done using multiple imputation.	Baseline to Week 12