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Completed

NCT Number: NCT04451720

Study of Subcutaneous Risankizumab Injection to Assess Change in Palmoplantar Pustulosis Area and Severity Index [PPPASI] in Adult Japanese Participants With Palmoplantar Pustulosis

Palmoplantar pustulosis is a chronic inflammatory skin disease that causes repeated on and off symptoms like erythema (reddening, irritation), vesicle (swelling, cyst), pustules, scale, and crusts in palms and soles. This study evaluates how well risankizumab works compared to placebo (no medicine) to treat palmoplantar pustulosis. Study will assess change in Palmoplantar Pustulosis Area and Severity Index [PPPASI].

Risankizumab is an investigational drug being developed for the treatment of palmoplantar pustulosis. This study is "double-blinded", which means that neither the trial participants nor the study doctors will know who will be given study drug and who will receive placebo (no medicine). Participants are randomly put into 1 of 2 groups, called treatment arms to receive risankizumab or placebo in period A. In period B, each group receives both risankizumab and placebo at different time intervals. Around 116 adult participants with palmoplantar pustulosis will be enrolled in approximately 39 sites across Japan.

Participants will receive subcutaneous (SC) injections of risankizumab or placebo at Week 0 and Week 4 (Period A). Beginning Week 16 (Period B), both the groups will receive risankizumab and placebo at different intervals. Total treatment duration is 56 weeks.

There may be a higher burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the course of the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

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Key information

Conditions

Palmoplantar Pustulosis (PPP) Psoriasis Skin Diseases Skin Diseases, Papulosquamous Skin and Connective Tissue Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Ichinomiya Municipal Hospital /ID# 222581, Ichinomiya-shi, Aichi-ken, Japan

Loading trial locations.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Stable moderate to severe Palmoplantar Pustulosis (PPP) with a Palmoplantar Pustulosis Area and Severity Index (PPPASI) total score of >= 12 at the Screening and Baseline Visits.
  • Moderate or severe pustules/vesicles on at least one palm or sole (>= 2 PPPASI severity score) at the Screening and Baseline Visits.
  • Experienced inadequate response (or intolerant) to treatment with topical corticosteroids and/or vitamin D3 derivative preparations and/or phototherapy and/or systemic etretinate.

Exclusion criteria

  • History of active skin disease other than PPP which could interfere with the assessment of PPP.

Treatment and study plan

Risankizumab

Drug

Subcutaneous (SC) injection

Other names: SKYRIZI, ABBV-066

Placebo

Drug

Subcutaneous (SC) injection

Primary outcomes

  1. Change From Baseline in Palmoplantar Pustulosis Area and Severity Index (PPPASI) Total Score

    Time frame: Baseline (Week 0) through Week 16

    The Palmoplantar Pustulosis Area and Severity Index (PPPASI) assesses the severity of palmoplantar pustulosis lesions and their response to therapy. In the PPPASI system, the palms and soles are divided into 4 regions: the right palm, left palm, right sole, left sole which account for 20%, 20%, 30%, and 30%, respectively, of the total surface area of the palms and soles. Each of these areas are assessed separately for erythema, pustules/vesicle and desquamation/scale, which are each rated on a scale of 0 to 4. The PPPASI produces a numeric score that can range from 0 to 72. A higher score indicates more severe disease.

Secondary outcomes

  1. Percentage of Participants Achieving at least 50% Improvement in PPPASI (PPPASI-50)

    Time frame: Baseline (Week 0) through Week 16

    The Palmoplantar Pustulosis Area and Severity Index (PPPASI) assesses the severity of palmoplantar pustulosis lesions and their response to therapy. In the PPPASI system, the palms and soles are divided into 4 regions: the right palm, left palm, right sole, left sole which account for 20%, 20%, 30%, and 30%, respectively, of the total surface area of the palms and soles. Each of these areas are assessed separately for erythema, pustules/vesicle and desquamation/scale, which are each rated on a scale of 0 to 4. The PPPASI produces a numeric score that can range from 0 to 72. A higher score indicates more severe disease.

  2. Percentage of Participants Achieving at least 75% Improvement in PPPASI (PPPASI-75)

    Time frame: Baseline (Week 0) through Week 16

    The Palmoplantar Pustulosis Area and Severity Index (PPPASI) assesses the severity of palmoplantar pustulosis lesions and their response to therapy. In the PPPASI system, the palms and soles are divided into 4 regions: the right palm, left palm, right sole, left sole which account for 20%, 20%, 30%, and 30%, respectively, of the total surface area of the palms and soles. Each of these areas are assessed separately for erythema, pustules/vesicle and desquamation/scale, which are each rated on a scale of 0 to 4. The PPPASI produces a numeric score that can range from 0 to 72. A higher score indicates more severe disease.

Sponsors and collaborators

Lead sponsor

AbbVie

Industry

Registry information

Official study title

A Phase 3, Multicenter, Randomized, Placebo-Controlled, Double-Blind Study to Evaluate Risankizumab in Adult Japanese Subjects With Moderate to Severe Palmoplantar Pustulosis

Important dates

Study start
2020
Primary completion
2022
Study completion
2022
First posted
Jun 30, 2020
Registry last updated
Dec 5, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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