ClinicalTrials.gov record
Completed Phase 2 Interventional Results available

Efficacy of Ustekinumab Followed by Abatacept for the Treatment of Psoriasis Vulgaris

ClinicalTrials.gov ID: NCT01999868

Public ClinicalTrials.gov record NCT01999868. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Apr 29, 2026, 9:06 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Efficacy of Ustekinumab (Anti-IL-12/23) Followed by Abatacept (CTLA4-Ig) for the Treatment of Psoriasis Vulgaris (ITN059AI)

Study identification

NCT ID
NCT01999868
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Enrollment
108 participants

Conditions and interventions

Conditions

Interventions

  • ABA Placebo Drug
  • Abatacept Biological
  • UST Placebo Drug
  • Ustekinumab Biological

Drug · Biological

Eligibility (public fields only)

Age range
18 Years to 65 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 18, 2014
Primary completion
Dec 6, 2017
Completion
Feb 28, 2018
Last update posted
Jan 14, 2019

2014 – 2018

United States locations

U.S. sites
8
U.S. states
8
U.S. cities
8
Facility City State ZIP Site status
Dermatology Research Associates Los Angeles California 90045
Northwestern University Chicago Illinois 60611
Tulane University School of Medicine: Dept. of Dermatology New Orleans Louisiana 70112
University of Michigan Ann Arbor Michigan 48109
The Rockefeller University New York New York 10065
Wake Forest University Winston-Salem North Carolina 27104
Case Western University Cleveland Ohio 44106
The University of Utah Salt Lake City Utah 84132

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 2 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01999868, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jan 14, 2019 · Synced Apr 29, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01999868 live on ClinicalTrials.gov.

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