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NCT03573323 · ClinicalTrials.gov registry record · Phase 4

A Study of Ixekizumab (LY2439821) Compared to Guselkumab in Participants With Moderate-to-Severe Plaque Psoriasis

A Phase 4 study, sponsored by Eli Lilly and Company.

Completed
Registry status
Phase 4
Development phase
1,027
Enrollment target

NCT03573323: Completed Phase 4 study, sponsored by Eli Lilly and Company.

NCT03573323 is a Phase 4 study that has completed, run by Eli Lilly and Company. The registered enrollment target is 1,027 participants, above the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (98% higher). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03573323, a Phase 4 study, has completed, sponsored by Eli Lilly and Company.

COMPLETED
Registry status
Phase 4
Development phase
1,027 participants
Enrollment target

Study Summary

The purpose of this study is to compare the efficacy and safety of ixekizumab to guselkumab in participants with moderate-to-severe plaque psoriasis.

Primary Outcome

The PASI combines assessments of the extent of body-surface involvement in 4 anatomical regions (head, trunk, arms, and legs) and the severity of desquamation (scaling), erythema, and plaque induration/infiltration (thickness) in each region, yielding an overall score of 0 for no psoriasis to 72 for the most severe disease. Participants achieving PASI 100 were defined as having an improvement of at least 100% in the PASI scores compared to baseline.

Interventions

  • DRUG Placebo
  • DRUG Guselkumab
  • DRUG Ixekizumab

Trial Details

FieldValue
Enrollment Target 1,027 participants
Start Date 2018-11-09
Est. Completion 2020-01-08
Phase Phase 4
Eli Lilly and Company

1,341 total trials

What the finished NCT03573323 record still lists

NCT03573323 is an interventional study that assigns participants to a tested intervention. Its 1,027 participants enrollment target places it among the larger protocols in the corpus, above the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (98% higher).

The record links to 0 conditions, and to 3 interventions - of which Placebo is the first listed.

NCT03573323 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03573323 about?

NCT03573323 is a clinical study titled "A Study of Ixekizumab (LY2439821) Compared to Guselkumab in Participants With Moderate-to-Severe Plaque Psoriasis". The purpose of this study is to compare the efficacy and safety of ixekizumab to guselkumab in participants with moderate-to-severe plaque psoriasis.

What is the current status of trial NCT03573323?

This trial is currently completed. It is a Phase 4 study. The enrollment target is 1,027 participants. The study started on 2018-11-09. Estimated completion is 2020-01-08.

What interventions are being tested in trial NCT03573323?

The interventions under investigation include: Placebo (DRUG), Guselkumab (DRUG), Ixekizumab (DRUG).

Who is sponsoring clinical trial NCT03573323?

This trial is sponsored by Eli Lilly and Company, which has 1,341 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT03573323's enrollment target sits among peer trials

1,027 66th of 2000 higher than 1,935 of 2,000 other Phase 4 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 4 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT03573323, the US trial registry maintained by the National Library of Medicine. NCT03573323 (large enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.