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A Study to Assess the Efficacy and Safety of MSTT1041A in Participants With Moderate to Severe Atopic Dermatitis

Phase 2
Completed
Conditions
Atopic Dermatitis
Interventions
Drug: Placebo
Registration Number
NCT03747575
Lead Sponsor
Genentech, Inc.
Brief Summary

This study will assess the efficacy and safety of MSTT1041A (astegolimab) in participants with moderate to severe atopic dermatitis (AD). The study consists of a screening period, a 16-week treatment period, and an 8-week follow-up period.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
65
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
TreatmentMSTT1041AParticipants will receive MSTT1041A
PlaceboPlaceboParticipants will receive placebo matched to MSTT1041A
Primary Outcome Measures
NameTimeMethod
Percent Change of Total Eczema Area and Severity Index (EASI) ScoreBaseline, Week 16

The Eczema Area and Severity Index (EASI) is a standardized instrument to evaluate the extent and severity of atopic dermatitis. An area score comprised of the percentage of skin affected by eczema for each of 4 body regions (head/neck, trunk, upper extremities, and lower extremities) is calculated with 0 = none, 1 = 1-9%, 2 = 10-29%, 3 = 30-49%, 4 = 50-69%, 5 = 70-89%, and 6 = 90-100%. Severity is scored for each of the 4 body regions by the summation of the intensity scores for 4 signs (redness, thickness, scratching, and lichenification), with 0 = none/absent, 1 = mild, 2 = moderate, and 3 = severe. The minimum final EASI score is 0 and the maximum score is 72.

Secondary Outcome Measures
NameTimeMethod
Incidence of Treatment-Emergent Anti-Drug Antibodies (ADAs)Up to Week 24
Proportion of Participants Who Achieve >/=75% Reduction From Baseline in Eczema Area and Severity Index (EASI-75) ScoreBaseline, Week 16
Percent Change in Body Surface Area (BSA) With Atopic Dermatitis (AD) InvolvementBaseline, Week 16
Percent Change in Disease Severity as Assessed by SCORing Atopic Dermatitis (SCORAD)Baseline, Week 16

SCORAD is a tool used to assess the extent and severity of eczema based on three aspects of disease severity: extent, intensity, and a subjective (PRO) symptoms. A total score (0-103) is calculated, with higher scores indicating a higher extent and severity of symptoms.

Percentage of Participants With Adverse Events (AE)Up to Week 24
Serum Concentrations of MSTT1041AAt pre-defined intervals from baseline up to Week 24
Proportion of Participants Who Achieve Investigator's Global Assessment (IGA) Response of 0 or 1Baseline, Week 16
Percent Change in Pruritus as Assessed by a Numeric Rating Scale (NRS)Baseline, Week 16

The Peak Pruritis Numerical Rating Scale (NRS) is a single-item patient-reported outcome (PRO) of itch severity rated on a scale of 0-10, with 0 = no itch and 10 = worst itch imaginable for the prior 24-hour period.

Trial Locations

Locations (21)

Florida Pulmonary Research Institute, LLC

🇺🇸

Winter Park, Florida, United States

Skin Laser and Surgery Specialists of New York and New Jersey LLC - Interspond - PPDS

🇺🇸

Hackensack, New Jersey, United States

Harmony Clinical Research, Inc

🇺🇸

North Miami Beach, Florida, United States

GCP Global Clinical Professionals

🇺🇸

Saint Petersburg, Florida, United States

Kliniczny Szpital Wojewodzki Nr 1 im. Fryderyka Chopina; Klinika Dermatologii

🇵🇱

Rzeszow, Poland

Wro Medica

🇵🇱

Wroc?aw, Poland

California Allergy and Asthma Medical Group - CRN

🇺🇸

Los Angeles, California, United States

Alabama Allergy & Asthma

🇺🇸

Birmingham, Alabama, United States

Asthma & Allergy; Associates, P.C.

🇺🇸

Colorado Springs, Colorado, United States

Jonathan Corren MD, Inc.

🇺🇸

Los Angeles, California, United States

South Coast Research Center, Inc.

🇺🇸

Miami, Florida, United States

Midwest Sinus Allergy and Asthma - CRN

🇺🇸

Normal, Illinois, United States

Dermatology Specialists Research, LLC

🇺🇸

Louisville, Kentucky, United States

Clinical Research Consortium Nevada

🇺🇸

Las Vegas, Nevada, United States

Center for Clinical Studies

🇺🇸

Houston, Texas, United States

Centrum Medyczne ALL-MED

🇵🇱

Krakow, Poland

Universitatsklinikum Munster

🇩🇪

Münster, Germany

SPZOZ Uniwersytecki Szpital Kliniczny nr 1 im. Norberta Barlickiego Uniwersytetu Medycznego w Lodzi

🇵🇱

Lodz, Poland

Laser Clinic

🇵🇱

Szczecin, Poland

Vital Prospects Clinical Research Institute PC - CRN

🇺🇸

Tulsa, Oklahoma, United States

Forward Clinical Trials

🇺🇸

Tampa, Florida, United States

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