A Study of Safety and Effectiveness of Ustekinumab (CNTO 1275) in Patients With Moderate to Severe Plaque-type Psoriasis (PHOENIX1)
A Phase 3, Multicenter, Randomized, Double-blind, Placebo Controlled Trial Evaluating the Efficacy and Safety of Ustekinumab (CNTO 1275) in the Treatment of Subjects With Moderate to Severe Plaque-type Psoriasis
Sponsor: Centocor Research & Development, Inc.
This PHASE3 trial investigates Psoriasis and is currently completed. Centocor Research & Development, Inc. leads this study, which shows 8 recorded versions since 2005 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.
Status Flow
Change History
8 versions recorded-
Sep 2025 — Present [monthly]
Completed PHASE3
-
Sep 2024 — Sep 2025 [monthly]
Completed PHASE3
-
Jul 2024 — Sep 2024 [monthly]
Completed PHASE3
-
Dec 2021 — Jul 2024 [monthly]
Completed PHASE3
-
Jan 2021 — Dec 2021 [monthly]
Completed PHASE3
▶ Show 3 earlier versions
-
Jun 2018 — Jan 2021 [monthly]
Completed PHASE3
-
Feb 2017 — Jun 2018 [monthly]
Completed PHASE3
-
Jan 2017 — Feb 2017 [monthly]
Completed PHASE3
First recorded
Dec 2005
Trial started
Per CT.gov start date — pre-dates our first snapshot
Eligibility Summary
No eligibility information available.
Contact Information
- Centocor Research & Development, Inc.
For direct contact, visit the study record on ClinicalTrials.gov .