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

> **NCT04459507** · — · COMPLETED · sponsor: **Janssen Pharmaceutical K.K.** · enrollment: 276 (actual)

## Conditions studied

- Palmoplantar Pustulosis

## Interventions

- **OTHER:** No intervention

## Key facts

- **NCT ID:** NCT04459507
- **Lead sponsor:** Janssen Pharmaceutical K.K.
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2021-03-22
- **Primary completion:** 2025-12-27
- **Final completion:** 2025-12-27
- **Target enrollment:** 276 (ACTUAL)
- **Last updated:** 2026-02-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04459507

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04459507, "A Registry Study of Palmoplantar Pustulosis (PPP) Treatment Patterns, Disease Burden and Treatment Outcomes in Japan". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT04459507. Licensed CC0.

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