# Janssen Research & Development, LLC: Phase 4 study closed enrollment, 411 enrolled (Arthritis, Psoriatic)

**Score:** 85/100

| Field | Value |
|---|---|
| Sponsor | Janssen Research & Development, LLC |
| Sponsor type | Industry (pharma, biotech, medtech) |
| Study | A Study of Guselkumab Administered Subcutaneously in Bio-naive Participants With Active Psoriatic Arthritis Axial Disease |
| NCT ID | NCT04929210 |
| Phase | Phase 4 |
| Status | active not recruiting |
| Conditions | Arthritis, Psoriatic |
| Intervention types | drug |
| Target enrollment | 411 |
| Site countries | United States, Argentina, Australia, Bulgaria, Canada, Czechia, Denmark, Georgia, Germany, Hong Kong, Hungary, Israel |
| Posted | 2021-06-18 |
| Planned start | 2021-08-30 |
| Event | Enrollment closed (active, not recruiting) |
| Event date | 2026-11-03 |
| Last update posted | 2026-11-03 |

## Why this score
- Posted in the last two weeks.
- Industry sponsor (buys outsourced services).
- Enrollment closed: data management, monitoring and closeout ahead.
- 411 participants planned.

Source: ClinicalTrials.gov (U.S. National Library of Medicine) API v2 (https://clinicaltrials.gov/study/NCT04929210). Last refreshed: 2026-11-04T06:04:38.232Z.
From public ClinicalTrials.gov registrations. Sponsor and study level only: we never list investigators, contacts or participants. A registration describes a planned study and can change. Status changes are read from each study's current status, actual dates and latest posted update, not a full change history, so an update can be a correction rather than a new change. Verify on ClinicalTrials.gov.