Skip to content

A Registry Study of Palmoplantar Pustulosis (PPP) Treatment Patterns, Disease Burden and Treatment Outcomes in Japan

Registry of Palmoplantar Pustulosis (PPP) Treatment Patterns, Disease Burden and Treatment Outcomes in Japan

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04459507
Acronym
ProPuP
Enrollment
276
Registered
2020-07-07
Start date
2021-03-22
Completion date
2025-12-27
Last updated
2026-02-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Palmoplantar Pustulosis

Brief summary

The purpose of this study is to describe the treatment patterns of participants receiving systemic treatment for of palmoplantar pustulosis (PPP) in Japan.

Interventions

OTHERNo intervention

No intervention will be administered as a part of this study. Both retrospective and prospective data will be collected. The retrospective data will be collected through participant charts and prospective data will be collected in accordance with clinical practice at the participant's clinic visits.

Sponsors

Janssen Pharmaceutical K.K.
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
OTHER

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum

Inclusion criteria

* Must have a confirmed diagnosis of palmoplantar pustulosis (PPP) and/or pustulotic arthro-osteitis (PAO) in accordance with local clinical practice * Has previously been prescribed treatment for PPP/PAO * A decision has been made by the treating physician and the participant to commence treatment with a systemic PPP/PAO therapy, having been deemed to have an inadequate response to previous therapy (New users are defined as those participants to commence treatment on baseline visit date. Existing users are defined as those who commenced treatment prior to the baseline visit since 01 November 2019.) * Must sign a participation agreement/informed consent form allowing data collection and source data verification in accordance with local requirements

Exclusion criteria

* Are receiving, or have received within the past 3 months, anti-inflammatory or analgesic systemic therapy such as oral corticosteroid, disease modifying antirheumatic drug (DMARDs), non-steroidal anti-inflammatory drugs, opioids, phosphodiesterase 4 (PDE4) inhibitor, or biologics for any other indication (for example, psoriasis, rheumatoid arthritis, ankylosing spondylitis, psoriatic arthritis, and asthma) * Received an investigational drug (including investigational vaccines) or used an invasive investigational medical device within 3 months before the start of the study or the first data collection time point * Participation in an investigational study * Participation in another observational study for guselkumab (including a post marketing surveillance study) * If the only treatment they have received for PPP has been antibiotics

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants who Remain on Their 'Index Systemic' TherapyUp to 4.5 YearsPercentage of participants who remain on their 'index systemic' therapy will be reported.
Percentage of Participants Ceasing Their 'Index Systemic' TherapyUp to 4.5 YearsPercentage of participants ceasing their 'index systemic' therapy will be reported.
Time to Cessation of Index Systemic Therapy From BaselineBaseline, Up to 4.5 YearsTime to cessation of index systemic therapy from baseline will be reported.

Secondary

MeasureTime frameDescription
Percentage of Participants Receiving Each 'Index Systemic' TherapyBaselinePercentage of participants receiving each 'Index Systemic' therapy will be reported.
Percentage of Participants Adding a Concurrent Systemic Treatment to their 'Index Systemic' TherapyBaseline and Every 6 Months Up to 4.5 YearsPercentage of participants adding a concurrent systemic treatment to their 'index systemic' therapy will be reported.
Percentage of Participants Ceasing a Concurrent Systemic Treatment to their 'Index Systemic' TherapyBaseline and Every 6 Months Up to 4.5 YearsPercentage of participants ceasing a concurrent systemic treatment to their 'index systemic' therapy will be reported.
Time to Addition of a Concurrent Systemic Treatment to 'Index Systemic' TherapyBaseline and Every 6 Months Up to 4.5 YearsTime to addition of a concurrent systemic treatment to 'index systemic' therapy will be reported.
Time to Ceasing of a Concurrent Systemic Treatment to 'Index Systemic' TherapyBaseline and Every 6 Months Up to 4.5 YearsTime to ceasing of a concurrent systemic treatment to 'index systemic' therapy will be reported.
Percentage of Participants Changing the Dosage of their 'Index Systemic' TherapyBaseline and Every 6 Months Up to 4.5 YearsPercentage of participants changing the dosage of their 'index systemic' therapy will be reported.
Percentage of Participants Adding a Concurrent Non-Systemic Therapy to their 'Index Systemic' TherapyBaseline and Every 6 Months Up to 4.5 YearsPercentage of participants adding a concurrent non-systemic therapy to their 'index systemic' therapy will be reported.
Percentage of Participants Ceasing a Concurrent Non-Systemic Therapy to their 'Index Systemic' TherapyBaseline and Every 6 Months Up to 4.5 YearsPercentage of participants ceasing a concurrent non-systemic therapy to their 'index systemic' therapy will be reported.
Percentage of Participants Switching to a First Subsequent Systemic Therapy Within the Follow-up PeriodEvery 6 Months Up to 4.5 YearsPercentage of participants switching to a first subsequent systemic therapy within the follow-up period will be reported.
Time to Commencement of First Subsequent Systemic Therapy From BaselineBaseline and Every 6 Months Up to 4.5 YearsTime to commencement of first subsequent systemic therapy from baseline will be reported.
Percentage of Participants Switching to a Second Subsequent Systemic Therapy Within the Follow-up PeriodEvery 6 Months Up to 4.5 YearsPercentage of participants switching to a second subsequent systemic therapy within the follow-up period will be reported.
Time to Commencement of Second Subsequent Systemic Therapy From BaselineBaseline and Every 6 Months Up to 4.5 YearsTime to commencement of second subsequent systemic therapy from baseline will be reported.
Mean and Distribution of Dermatology Life Quality Index (DLQI) Scores at BaselineBaselineMean and distribution of DLQI scores at baseline will be reported. DLQI instrument consists of 10 questions covering six domains (symptoms and feelings, daily activities, leisure, work and school, personal relationships, and bother with psoriasis treatment). The response options range from 0, not affected at all, to 3, very much affected. This gives an overall range of 0 to 30 where lower scores mean better quality of life.
Mean and Distribution of European Quality of Life (EuroQol) Group, 5-Dimension, 5-Level (EQ-5D-5L) Scores at BaselineBaselineMean and distribution of EQ-5D-5L scores at baseline will be reported. EQ-5D-5L is a descriptive system of health-related quality of life states consisting of five dimensions (mobility, self-care, usual activities, pain/discomfort, anxiety/depression) each of which can take one of five responses. The responses record five levels of severity (no problems/slight problems/moderate problems/severe problems/extreme problems) within a particular EQ-5D dimension. A lower score indicates worse health.
Mean and Distribution of Health Assessment Questionnaire-Disability Index (HAQ-DI) Scores at BaselineBaselineMean and distribution of HAQ-DI scores at baseline will be reported. The Disability Index of the Health Assessment Questionnaire (HAQ-DI) assesses the functional status of the participant. This 20-question instrument assesses the degree of difficulty a person has in accomplishing tasks in 8 functional areas (dressing, arising, eating, walking, hygiene, reaching, gripping, and activities of daily living). Responses in each functional area are scored from 0, indicating no difficulty, to 3, indicating inability to perform a task in that area where lower scores are indicative of better functioning.
Mean and Distribution of Work Productivity and Activity Impairment: General Health (WPAI:GH) Scores at BaselineBaselineMean and distribution of WPAI:GH scores at baseline will be reported. WPAI:GH questionnaire is a validated instrument to measure impairments in both paid work and unpaid work. It measures absenteeism, presenteeism as well as the impairments in unpaid activity because of health problem during the past seven days. It consists of 6-item questionnaire looks at the effect of health problems on ability to work and perform regular activities. The WPAI yields 4 types of scores: absenteeism (work time missed), presenteeism (impairment at work / reduced on-the-job effectiveness), work productivity loss (overall work impairment / absenteeism plus presenteeism) and activity impairment. WPAI outcomes are expressed as impairment percentages, with higher numbers indicating greater impairment and less productivity, i.e., worse outcomes.
Percentage of Participants with a Physician's Global Assessment (PGA) Score of 1 or Less (0 or 1)Baseline and Every 6 Months Up to 4.5 YearsPercentage of participants with a PGA score of 1 or less (0 or 1) will be reported. The PGA is used to determine the participant's overall palmoplantar pustulosis lesions at a given time point. Overall lesions will be graded based on the scale where, 0 = clear;1 = almost clear; 2 = Mild; 3 = Moderate; 4 = Severe; 5 = Very severe.
Change From Baseline in PGA ScoreBaseline and Every 6 Months Up to 4.5 YearsChange From baseline in PGA score will be reported. The PGA is used to determine the participant's overall palmoplantar pustulosis lesions at a given time point. Overall lesions will be graded based on the scale where, 0 = clear;1 = almost clear; 2 = Mild; 3 = Moderate; 4 = Severe; 5 = Very severe.
Change from Baseline in Palmoplantar Pustulosis Area and Severity Index (PPPASI) ScoreBaseline and Every 6 Months Up to 4.5 YearsThe 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, and left sole, which account for 20 percent (%), 20%, 30%, and 30%, respectively, of the total surface area of the palms and soles. Each of these areas is 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.
Change From Baseline in Pain Visual Analogue Scale (Pain-VAS) ScoreBaseline and Every 6 Months Up to 4.5 YearsChange from baseline in Pain-VAS score will be reported. Pain-VAS is used to measure subjective pain status. It is a unilateral scale anchored at 0 (no pain) and 10 (worst pain imaginable).
Change in Primary Location of PainBaseline and Every 6 Months Up to 4.5 YearsChange in primary location of pain will be reported.
Change From Baseline in DLQI ScoreBaseline and Every 6 Months Up to 4.5 YearsChange from baseline in DLQI score will be reported. DLQI instrument consists of 10 questions covering six domains (symptoms and feelings, daily activities, leisure, work and school, personal relationships, and bother with psoriasis treatment). The response options range from 0, not affected at all, to 3, very much affected. This gives an overall range of 0 to 30 where lower scores mean better quality of life.
Change From Baseline in EQ5D-5L Index ScoreBaseline and Every 6 Months Up to 4.5 YearsChange from baseline in EQ5D-5L index score will be reported. The EQ-5D-5L is a descriptive system of health-related quality of life states consisting of five dimensions (mobility, self-care, usual activities, pain/discomfort, anxiety/depression) each of which can take one of five responses. The responses record five levels of severity (no problems/slight problems/moderate problems/severe problems/extreme problems) within a particular EQ-5D dimension.
Change from Baseline in HAQ-DI Index ScoreBaseline and Every 6 Months Up to .4.5 YearsChange from baseline in HAQ-DI score will be reported. The HAQ-DI assesses the functional status of the participant. This 20-question instrument assesses the degree of difficulty a person has in accomplishing tasks in 8 functional areas (dressing, arising, eating, walking, hygiene, reaching, gripping, and activities of daily living). Responses in each functional area are scored from 0, indicating no difficulty, to 3, indicating inability to perform a task in that area where lower scores are indicative of better functioning.
Change from Baseline in Work Productivity and Activity Impairment questionnaire (WPAI)Baseline and Every 6 Months Up to 4.5 YearsChange from baseline in WPAI will be reported. WPAI questionnaire is a validated instrument to measure impairments in both paid work and unpaid work. It measures absenteeism, presenteeism as well as the impairments in unpaid activity because of health problem during the past seven days. The higher the score the greater impact on productivity.
Percentage of Participants with Adverse Events (AEs) and serious Adverse Events (SAEs)Up to 4.5 YearsPercentage of participants with adverse events and serious Adverse Events will be reported. An adverse event is any untoward medical occurrence in a participant administered a medicinal (investigational or non-investigational) product. An adverse event does not necessarily have a causal relationship with the treatment. An adverse event can be any unfavorable and unintended sign (including an abnormal finding or lack of expected pharmacological action), symptom, or disease temporally associated with the use of a medicinal product, whether or not related to that medicinal product.

Countries

Japan

Contacts

STUDY_DIRECTORJanssen Pharmaceutical K.K., Japan Clinical Trial

Janssen Pharmaceutical K.K.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026