A Study of Subcutaneous Risankizumab Injection for Pediatric Participants With Moderate to Severe Plaque Psoriasis to Assess Change in Disease Symptoms (OptIMMize-1)

May 19, 2025 updated by: AbbVie

A Randomized, Active-Controlled, Efficacy Assessor-Blinded Study to Evaluate Pharmacokinetics, Safety and Efficacy of Risankizumab in Patients From 6 to Less Than 18 Years of Age With Moderate to Severe Plaque Psoriasis

Psoriasis is a chronic, systemic, inflammatory disease in which skin cells build up and develop thick, red and white scaly patches on the skin. There is an unmet medical need for effective treatment in pediatric patients and this study is being done to evaluate risankizumab in pediatric participants with moderate to severe plaque psoriasis. This study will assess the change in disease symptoms.

Risankizumab is a drug being studied for the treatment for plaque psoriasis in pediatric participants. This study has 4 parts.

Part 1: Participants aged 12 < 18 will receive a fixed dose of risankizumab. Part 2: Participants aged 12 < 18 will receive;

  • Period A: Risankizumab or ustekinumab based on body weight followed by;
  • Period B: Risankizumab or no treatment.
  • Period C: Re-treatment with risankizumab (if needed).

Part 3: Participants aged 6 < 12 will receive risankizumab based on body weight.

Part 4: Participants aged 6 < 12 will receive risankizumab based on body weight (Japan only: Participants aged 12 > 18 will receive risankizumab based on body weight).

Around 132 participants will be enrolled in approximately 50 sites worldwide.

Risankizumab and ustekinumab are given as a subcutaneous (under the skin) injection.

Parts 1, 3, and 4: Risankizumab for 40 weeks with a follow-up call 20 weeks later for a study duration of approximately 65 weeks.

Part 2:

  • Period A: Risankizumab or ustekinumab for 16 weeks.
  • Period B: Risankizumab or no treatment for 36 weeks.
  • Period C: Re-treatment with risankizumab for 16 weeks. Follow-up call 20 weeks later for a study duration of approximately 81 weeks. Participants from each Part who meet eligibility criteria for an open-label extension (OLE) study may continue on risankizumab for 216 additional weeks.

There may be a higher burden for study participants compared to standard treatment. Participants will attend monthly visits and medical assessments will check the effect of treatment through blood tests, questionnaires, and checking for side effects.

Study Overview

Status

Completed

Conditions

Study Type

Interventional

Enrollment (Actual)

139

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 Locations

    • Alberta
      • Calgary, Alberta, Canada, T2J 7E1
        • Duplicate_Dermatology Research Institute Inc. /ID# 226172
    • Newfoundland and Labrador
      • St. John's, Newfoundland and Labrador, Canada, A1A 4Y3
        • Karma Clinical Trials /ID# 226177
    • Ontario
      • Toronto, Ontario, Canada, M5G 1X8
        • Hospital for Sick Children /ID# 226167
    • Quebec
      • Montreal, Quebec, Canada, H3T 1C5
        • CHU Sainte-Justine /ID# 226170
    • Niedersachsen
      • Bad Bentheim, Niedersachsen, Germany, 48455
        • Fachklinik Bad Bentheim /ID# 226014
    • Nordrhein-Westfalen
      • Bonn, Nordrhein-Westfalen, Germany, 53127
        • Universitaetsklinikum Bonn /ID# 228880
      • Muenster, Nordrhein-Westfalen, Germany, 48149
        • Universitaetsklinikum Muenster /ID# 225988
    • Rheinland-Pfalz
      • Mainz, Rheinland-Pfalz, Germany, 55131
        • Duplicate_Universitaetsmedizin der Johannes Gutenberg-Universitaet Mainz /ID# 225987
    • Sachsen
      • Dresden, Sachsen, Germany, 01307
        • Universitaetsklinikum Carl Gustav Carus Dresden /ID# 228881
    • Schleswig-Holstein
      • Kiel, Schleswig-Holstein, Germany, 24105
        • Universitaetsklinikum Schleswig-Holstein Campus Kiel /ID# 226013
    • Aichi
      • Nagoya shi, Aichi, Japan, 467-8602
        • Nagoya City University Hospital /ID# 230830
    • Hiroshima
      • Hiroshima-shi, Hiroshima, Japan, 734-8551
        • Hiroshima University Hospital /ID# 256162
    • Mie
      • Tsu-shi, Mie, Japan, 514-8507
        • Mie University Hospital /ID# 230836
    • Osaka
      • Hirakata-shi, Osaka, Japan, 573-1191
        • Kansai Medical University Hospital /ID# 231215
    • Tokyo
      • Itabashi-ku, Tokyo, Japan, 173-8606
        • Duplicate_Teikyo University Hospital /ID# 255188
      • Shinjuku-ku, Tokyo, Japan, 160-0023
        • Tokyo Medical University Hospital /ID# 230575
    • Lodzkie
      • Lodz, Lodzkie, Poland, 90-265
        • Dermed Centrum Medyczne Sp. z o.o /ID# 226062
      • Lodz, Lodzkie, Poland, 90-436
        • Dermoklinika Centrum Medyczne s.c. /ID# 226063
    • Mazowieckie
      • Warszawa, Mazowieckie, Poland, 01-817
        • High-Med Przychodnia Specjalistyczna /ID# 226060
    • Podkarpackie
      • Rzeszow, Podkarpackie, Poland, 35-055
        • Uniwersytecki Szpital Kliniczny im. F. Chopina w Rzeszowie /ID# 226116
    • Pomorskie
      • Gdansk, Pomorskie, Poland, 80-546
        • Centrum Badan Klinicznych PI-House sp. z o.o. /ID# 228252
      • Madrid, Spain, 28007
        • Hospital General Universitario Gregorio Maranon /ID# 225721
      • Madrid, Spain, 28031
        • Hospital Universitario Infanta Leonor /ID# 225720
      • Madrid, Spain, 28041
        • Hospital Universitario 12 de Octubre /ID# 227860
      • Pontevedra, Spain, 36071
        • Complejo Hospitalario Universitario de Pontevedra /ID# 226061
    • Barcelona
      • Esplugues de Llobregat, Barcelona, Spain, 08950
        • Hospital Sant Joan de Deu /ID# 225722
    • Devon
      • Exeter, Devon, United Kingdom, EX2 5DW
        • Duplicate_Royal Devon University Healthcare NHS Foundation Trust /ID# 228078
      • Plymouth, Devon, United Kingdom, PL6 5FP
        • Duplicate_University Hospital Plymouth NHS Trust /ID# 227230
    • Greater London
      • London, Greater London, United Kingdom, SE1 9RT
        • Guys and St Thomas NHS Foundation Trust /ID# 227224
      • London, Greater London, United Kingdom, SW10 9NH
        • Chelsea and Westminster Hospital /ID# 227231
    • Scotland
      • Glasgow, Scotland, United Kingdom, G12 0XH
        • NHS Greater Glasgow and Clyde /ID# 227226
    • Surrey
      • Camberley, Surrey, United Kingdom, GU16 7UJ
        • Frimley Health NHS Foundation Trust /ID# 229525
    • Alabama
      • Birmingham, Alabama, United States, 35233
        • UAB Department of Dermatology /ID# 218834
    • California
      • Fountain Valley, California, United States, 92708
        • First OC Dermatology /ID# 217733
      • Sacramento, California, United States, 95815
        • Integrative Skin Science and Research /ID# 221741
      • San Diego, California, United States, 92123
        • University of California San Diego - Rady Children's Hospital San Diego /ID# 217906
    • Florida
      • Fort Lauderdale, Florida, United States, 33316-1952
        • Rybear, Inc /ID# 223164
      • Jacksonville, Florida, United States, 32256
        • Solutions Through Adv Rch /ID# 217936
      • Saint Petersburg, Florida, United States, 33709-1405
        • Olympian Clinical Research- St. Petersburg /ID# 217941
      • Tampa, Florida, United States, 33607
        • Advanced Clinical Research Institute /ID# 222706
    • Illinois
      • Darien, Illinois, United States, 60561
        • University Dermatology and Vein Clinic, LLC /ID# 222778
      • Rolling Meadows, Illinois, United States, 60008
        • Duplicate_Arlington Dermatology /ID# 217472
    • Nevada
      • Reno, Nevada, United States, 89052
        • Duplicate_Skin Cancer and Dermatology Institute (SCDI) /ID# 221738
    • New York
      • Kew Gardens, New York, United States, 11415
        • Duplicate_Forest Hills Dermatology Group /ID# 227941
    • Ohio
      • Cleveland, Ohio, United States, 44106
        • Univ Hosp Cleveland /ID# 228483
      • Columbus, Ohio, United States, 43210
        • The Ohio State University /ID# 217808
      • Mayfield Heights, Ohio, United States, 44124
        • Apex Clinical Research Center /ID# 228537
    • Oklahoma
      • Tulsa, Oklahoma, United States, 74136-7049
        • Vital Prospects Clinical Research Institute, PC /ID# 217960
    • South Carolina
      • Charleston, South Carolina, United States, 29425
        • Medical University of South Carolina /ID# 217735
    • Texas
      • Arlington, Texas, United States, 76011
        • Arlington Research Center, Inc /ID# 217471
    • West Virginia
      • Morgantown, West Virginia, United States, 26506
        • West Virginia University Hospitals /ID# 228352
    • Wisconsin
      • Kenosha, Wisconsin, United States, 53144-1782
        • Clinical Investigation Specialist, Inc - Kenosha /ID# 223161
      • Milwaukee, Wisconsin, United States, 53226
        • Wisconsin Medical Center /ID# 240005

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

6 years to 17 years (Child)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Diagnosis of chronic plaque psoriasis for at least 6 months before the Baseline Visit.
  • Stable severe or moderate to severe plaque psoriasis as defined in each study part by body surface area (BSA) psoriasis involvement and scores on the Psoriasis Area and Severity Index (PASI) and Static Physician Global Assessment (sPGA).
  • Candidate for systemic therapy as assessed by the investigator and meet the disease activity criteria at both the Screening and Baseline Visits per the protocol.

Exclusion Criteria:

- Concurrent clinically significant medical conditions other than the indication being studied or any other reason that the investigator determines would interfere with the participant's participation in this study, would make the participant an unsuitable candidate to receive study drug, or would put the participant at risk by participating in the study.

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: Sequential Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Part 1: Risankizumab Dose A
Participants age 12 to less than 18 receive fixed dose of risankizumab Dose A for 40 weeks.
Subcutaneous Injection
Other Names:
  • ABBV-066
  • SKYRIZI
Experimental: Part 2: Ustekinumab Dose A/B/C then Risankizumab Dose A/B

Participants age 12 to less than 18 will receive:

Period A: Ustekinumab Dose A, Dose B, or Dose C based on body weight for 16 weeks (at Week 0 and Week 4).

Period B: Risankizumab Dose A or B based on body weight for 24 weeks.

Subcutaneous Injection
Other Names:
  • ABBV-066
  • SKYRIZI
Subcutaneous Injection
Experimental: Part 2: Risankizumab Dose A/B

Participants age 12 to less than 18 will receive:

Period A: Risankizumab Dose A or B based on body weight for 16 weeks (at Week 0 and Week 4).

Period B: Participants who respond to Risankizumab in Period A are re-randomized to continue Risankizumab Dose A or B based on body weight for up to 24 weeks or withdraw from treatment until flare.

Period C: Participants withdrawn from treatment in Period B and experience a flare in symptoms at Week 28 or beyond are eligible for re-treatment with Risankizumab Dose A or B based on body weight for 16 weeks (at Week 0 and Week 4).

Subcutaneous Injection
Other Names:
  • ABBV-066
  • SKYRIZI
Experimental: Part 3: Risankizumab Dose A/B
Participants age 6 to less than 12 will receive Risankizumab Dose A or B based on body weight for 40 weeks.
Subcutaneous Injection
Other Names:
  • ABBV-066
  • SKYRIZI
Experimental: Part 4: Risankizumab Dose A/B
Participants age 6 to less than 12 will receive Risankizumab Dose A or B based on body weight for 40 weeks (Japan only: participants age 12 to less than 18 years will be included).
Subcutaneous Injection
Other Names:
  • ABBV-066
  • SKYRIZI

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Participants Achieving Psoriasis Area Severity Index (PASI) 75 (Defined as at Least 75% Improvement in PASI)
Time Frame: Baseline (Week 0) to Week 16 of initial treatment in each part of the study (Parts 1-4)
The PASI is used to evaluate a participant's overall psoriasis disease state that includes the percent of surface area of skin that is affected and the severity of erythema, induration, and desquamation over four body regions (head, upper extremities, trunk, and lower extremities). Scores range from 0 to 72, with the highest score representing the worst outcome (complete erythroderma of the severest degree). Data are reported for the percentage of participants achieving at least a 75% improvement in PASI.
Baseline (Week 0) to Week 16 of initial treatment in each part of the study (Parts 1-4)
Percentage of Participants Achieving Static Physician's Global Assessment (sPGA) of Clear or Almost Clear (Score of 0 or 1)
Time Frame: At Week 16 of initial treatment in each part of the study (Parts 1-4)
The sPGA is the physician's current assessment of the average thickness, erythema, and scaling of all psoriatic lesions. Scores range from 0 (clear) to 4 (severe) with higher scores representing worse outcomes. Data are reported for the percentage of participants achieving sPGA of clear (score of 0) or almost clear (score of 1).
At Week 16 of initial treatment in each part of the study (Parts 1-4)
Percentage of Participants Achieving Static Physician's Global Assessment (sPGA) of Clear or Almost Clear (Score of 0 or 1) and With at Least 2 Grade Improvement From Baseline
Time Frame: Baseline (Week 0) to Week 16 of initial treatment in each part of the study (Parts 1-4)
The sPGA is the physician's current assessment of the average thickness, erythema, and scaling of all psoriatic lesions. Scores range from 0 (clear) to 4 (severe) with higher scores representing worse outcomes. Data are reported for the percentage of participants achieving sPGA of clear (score of 0) or almost clear (score of 1).
Baseline (Week 0) to Week 16 of initial treatment in each part of the study (Parts 1-4)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Participants Achieving PASI 90 (Defined as at Least 90% Improvement in PASI)
Time Frame: Baseline (Week 0) to Week 16 of initial treatment in each part of the study (Parts 1-4)
The PASI is used to evaluate a participant's overall psoriasis disease state that includes the percent of surface area of skin that is affected and the severity of erythema, induration, and desquamation over four body regions (head, upper extremities, trunk, and lower extremities). Scores range from 0 to 72, with the highest score representing the worst outcome (complete erythroderma of the severest degree). Data are reported for the percentage of participants achieving at least a 90% improvement in PASI.
Baseline (Week 0) to Week 16 of initial treatment in each part of the study (Parts 1-4)
Percentage of Participants Achieving PASI 100 (Defined as at Least 100% Improvement in PASI)
Time Frame: Baseline (Week 0) to Week 16 of initial treatment in each part of the study (Parts 1-4)
The PASI is used to evaluate a participant's overall psoriasis disease state that includes the percent of surface area of skin that is affected and the severity of erythema, induration, and desquamation over four body regions (head, upper extremities, trunk, and lower extremities). Scores range from 0 to 72, with the highest score representing the worst outcome (complete erythroderma of the severest degree). Data are reported for the percentage of participants achieving at least a 100% improvement in PASI.
Baseline (Week 0) to Week 16 of initial treatment in each part of the study (Parts 1-4)
Percentage of Participants Achieving Static Physician's Global Assessment (sPGA) of Clear or Almost Clear (0 or 1)
Time Frame: Baseline (Week 0) and Week 16 of the re-treatment phase in Part 2 (Period C)
The sPGA is the physician's current assessment of the average thickness, erythema, and scaling of all psoriatic lesions. Scores range from 0 (clear) to 4 (severe) with higher scores representing worse outcomes. Data are reported for the percentage of participants achieving sPGA of clear (score of 0) or almost clear (score of 1).
Baseline (Week 0) and Week 16 of the re-treatment phase in Part 2 (Period C)
Percentage of Participants Achieving Static Physician's Global Assessment (sPGA) of Clear or Almost Clear (Score of 0 or 1) and With at Least 2 Grade Improvement From Baseline
Time Frame: Baseline (Week 0) and Week 16 of the re-treatment phase in Part 2 (Period C)
The sPGA is the physician's current assessment of the average thickness, erythema, and scaling of all psoriatic lesions. Scores range from 0 (clear) to 4 (severe) with higher scores representing worse outcomes. Data are reported for the percentage of participants achieving sPGA of clear (score of 0) or almost clear (score of 1).
Baseline (Week 0) and Week 16 of the re-treatment phase in Part 2 (Period C)
Percentage of Participants Achieving PASI 50 (Defined as at Least 50% Improvement in PASI)
Time Frame: Baseline (Week 0) to Week 16 of initial treatment in each part of the study (Parts 1-4)
The PASI is used to evaluate a participant's overall psoriasis disease state that includes the percent of surface area of skin that is affected and the severity of erythema, induration, and desquamation over four body regions (head, upper extremities, trunk, and lower extremities). Scores range from 0 to 72, with the highest score representing the worst outcome (complete erythroderma of the severest degree). Data are reported for the percentage of participants achieving at least a 50% improvement in PASI.
Baseline (Week 0) to Week 16 of initial treatment in each part of the study (Parts 1-4)
Percentage of Participants Achieving PASI 50 (Defined as at Least 50% Improvement in PASI)
Time Frame: Baseline (Week 0) and Week 16 of the re-treatment phase in Part 2 (Period C)
The PASI is used to evaluate a participant's overall psoriasis disease state that includes the percent of surface area of skin that is affected and the severity of erythema, induration, and desquamation over four body regions (head, upper extremities, trunk, and lower extremities). Scores range from 0 to 72, with the highest score representing the worst outcome (complete erythroderma of the severest degree). Data are reported for the percentage of participants achieving at least a 50% improvement in PASI.
Baseline (Week 0) and Week 16 of the re-treatment phase in Part 2 (Period C)
Percentage of Participants Achieving PASI 90 (Defined as at Least 90% Improvement in PASI)
Time Frame: Baseline (Week 0) and Week 16 of the re-treatment phase in Part 2 (Period C)
The PASI is used to evaluate a participant's overall psoriasis disease state that includes the percent of surface area of skin that is affected and the severity of erythema, induration, and desquamation over four body regions (head, upper extremities, trunk, and lower extremities). Scores range from 0 to 72, with the highest score representing the worst outcome (complete erythroderma of the severest degree). Data are reported for the percentage of participants achieving at least a 90% improvement in PASI.
Baseline (Week 0) and Week 16 of the re-treatment phase in Part 2 (Period C)
Percentage of Participants Achieving PASI 100 (Defined as at Least 100% Improvement in PASI)
Time Frame: Baseline (Week 0) and Week 16 of the re-treatment phase in Part 2 (Period C)
The PASI is used to evaluate a participant's overall psoriasis disease state that includes the percent of surface area of skin that is affected and the severity of erythema, induration, and desquamation over four body regions (head, upper extremities, trunk, and lower extremities). Scores range from 0 to 72, with the highest score representing the worst outcome (complete erythroderma of the severest degree). Data are reported for the percentage of participants achieving at least a 100% improvement in PASI.
Baseline (Week 0) and Week 16 of the re-treatment phase in Part 2 (Period C)
Percentage of Participants Achieving PASI 75 (Defined as at Least 75% Improvement in PASI)
Time Frame: Baseline (Week 0) and Week 16 of the re-treatment phase in Part 2 (Period C)
The PASI is used to evaluate a participant's overall psoriasis disease state that includes the percent of surface area of skin that is affected and the severity of erythema, induration, and desquamation over four body regions (head, upper extremities, trunk, and lower extremities). Scores range from 0 to 72, with the highest score representing the worst outcome (complete erythroderma of the severest degree). Data are reported for the percentage of participants achieving at least a 75% improvement in PASI.
Baseline (Week 0) and Week 16 of the re-treatment phase in Part 2 (Period C)
Change From Baseline in Children's Dermatology Life Quality Index (CDLQI) Total Score
Time Frame: Baseline (Week 0) to Week 16 of initial treatment in Part 2 (Period A)
The CDLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of dermatologic disease symptoms and treatment on quality of life (QOL). The CDLQI items include symptoms and feelings, daily activities, leisure, school, relationships, sleep, and treatment. Each item was scored on a 4-point scale: 0 = not at all; 1 = only a little; 2 = quite a lot; and 3 = very much. Item scores (0 to 3) were added to provide a total score range of 0 to 30 with higher scores representing greater impairment of QOL and worse outcomes. A negative change from baseline score indicated a reduced impairment of QOL.
Baseline (Week 0) to Week 16 of initial treatment in Part 2 (Period A)
Change From Baseline in Children's Dermatology Life Quality Index (CDLQI) Total Score
Time Frame: Baseline (Week 0) to Week 16 of the re-treatment phase in Part 2 (Period C)
The CDLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of dermatologic disease symptoms and treatment on quality of life (QOL). The CDLQI items include symptoms and feelings, daily activities, leisure, school, relationships, sleep, and treatment. Each item was scored on a 4-point scale: 0 = not at all; 1 = only a little; 2 = quite a lot; and 3 = very much. Item scores (0 to 3) were added to provide a total score range of 0 to 30 with higher scores representing greater impairment of QOL and worse outcomes. A negative change from baseline score indicated a reduced impairment of QOL.
Baseline (Week 0) to Week 16 of the re-treatment phase in Part 2 (Period C)
Change From Baseline in Family Dermatology Life Quality Index (FDLQI) Total Score
Time Frame: Baseline (Week 0) to Week 16 of initial treatment in Part 2 (Period A)
The FDLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of dermatologic disease symptoms and treatment on Quality of Life (QOL) of family members. It consists of 10 questions that assess the impact of skin diseases on different aspects of the family member's QOL. Each item was scored on a 4-point scale: 0 = not at all; 1 = a little; 2 = quite a lot; and 3 = very much. Item scores (0 to 3) were added to provide a total score range of 0 to 30 with higher scores representing greater impairment of QOL and worse outcomes. A negative change from baseline score indicated a reduced impairment of QOL.
Baseline (Week 0) to Week 16 of initial treatment in Part 2 (Period A)
Change From Baseline in Family Dermatology Life Quality Index (FDLQI) Total Score
Time Frame: Baseline (Week 0) to Week 16 of the re-treatment phase in Part 2 (Period C)
The FDLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of dermatologic disease symptoms and treatment on Quality of Life (QOL) of family members. It consists of 10 questions that assess the impact of skin diseases on different aspects of the family member's QOL. Each item was scored on a 4-point scale: 0 = not at all; 1 = a little; 2 = quite a lot; and 3 = very much. Item scores (0 to 3) were added to provide a total score range of 0 to 30 with higher scores representing greater impairment of QOL and worse outcomes. A negative change from baseline score indicated a reduced impairment of QOL.
Baseline (Week 0) to Week 16 of the re-treatment phase in Part 2 (Period C)
Change From Baseline in Itch Numerical Rating Scale (Itch NRS)
Time Frame: Baseline (Week 0) to Week 16 of initial treatment in Part 2 (Period A)
The itch NRS is an 11-point scale that participants complete to describe the intensity of their itch. The itch NRS scale scores varies between 0, representing "no itching" and 10, representing "worst itch imaginable" with higher scores representing worse outcomes. A negative change from baseline indicates less intense itching and better outcomes.
Baseline (Week 0) to Week 16 of initial treatment in Part 2 (Period A)
Change From Baseline in Itch Numerical Rating Scale (Itch NRS)
Time Frame: Baseline (Week 0) to Week 16 of the re-treatment phase in Part 2 (Period C)
The itch NRS is an 11-point scale that participants complete to describe the intensity of their itch. The itch NRS scale scores varies between 0, representing "no itching" and 10, representing "worst itch imaginable" with higher scores representing worse outcomes. A negative change from baseline indicates less intense itching and better outcomes.
Baseline (Week 0) to Week 16 of the re-treatment phase in Part 2 (Period C)
Percentage of Participants Achieving >= 4-point Improvement in the Itch Numerical Rating Scale (in Participants With Baseline Score >= 4)
Time Frame: Baseline (Week 0) to Week 16 of initial treatment in Part 2 (Period A)
The itch NRS is an 11-point scale that participants complete to describe the intensity of their itch within a 24-hour recall period. The itch NRS scale scores varies between 0, representing "no itching" and 10, representing "worst itch imaginable" with higher scores representing worse outcomes. Data are reported for the percentage of participants achieving >= 4 point improvement in the itch NRS in participants with a baseline itch NRS score of >=4.
Baseline (Week 0) to Week 16 of initial treatment in Part 2 (Period A)

Collaborators and Investigators

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

Sponsor

Investigators

  • Study Director: ABBVIE INC., AbbVie

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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)

July 14, 2020

Primary Completion (Actual)

February 12, 2024

Study Completion (Actual)

October 15, 2024

Study Registration Dates

First Submitted

June 16, 2020

First Submitted That Met QC Criteria

June 16, 2020

First Posted (Actual)

June 17, 2020

Study Record Updates

Last Update Posted (Estimated)

May 20, 2025

Last Update Submitted That Met QC Criteria

May 19, 2025

Last Verified

May 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

  • M19-977
  • 2023-504156-10-00 (Other Identifier: EU CT)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

AbbVie is committed to responsible clinical trial data sharing. This includes access to anonymized, individual and trial-level data (analysis data sets), as well as other information.

IPD Sharing Time Frame

For details on when studies are available for sharing visit https://vivli.org/ourmember/abbvie/

IPD Sharing Access Criteria

To learn more about the process, or to submit a request, visit the following link https://www.abbvieclinicaltrials.com/hcp/data-sharing/

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

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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