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Trial · NCT03151551

A Study of Ixekizumab (LY2439821) Versus Adalimumab in Participants With Psoriatic Arthritis

NCT03151551, Phase 4, Completed, Eli Lilly and Company; results first posted 2019-04-02

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Study of Ixekizumab (LY2439821) Versus Adalimumab in Participants With Psoriatic Arthritis. Trials, record NCT03151551. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03151551

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
A Study of Ixekizumab (LY2439821) Versus Adalimumab in Participants With Psoriatic Arthritis
NCT number
NCT03151551
Status
Completed
Phases
Phase 4
Enrollment
566 participants, actual
Lead sponsor
Eli Lilly and Company
Conditions
Psoriatic Arthritis
Interventions
Ixekizumab, Adalimumab
First posted
2017-05-12
Last updated
2020-11-03
Other registries' IDs
eudract:2016-004585-25
Results first posted
2019-04-02

Source ClinicalTrials.gov

Registered outcomes29

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercentage of Participants Simultaneously Achieving American College of Rheumatology 50 (ACR50) and Psoriasis Area and Severity Index 100 (PASI100)Week 24
ACR50 response is a ≥50% improvement from baseline for tender joint count(TJC)\& swollen joint count (SJC)\& in at least 3 of the following 5 criteria: Participant's(pts) assessment of joint pain Visual Analog Scale (VAS),Pts Global Assessment of Disease Activity (PatGA)VAS, Physician's Global Assessment of Disease Activity (PGA)VAS, Pts assessment of physical function using the Health Assessment Questionnaire-Disability Index(HAQ-DI), or High Sensitivity(assay)C-Reactive Protein (hs-CRP). PASI is an index combining assessments of the extent of body-surface involvement in head, trunk, arms, legs, and severity of desquamation, erythema and plaque thickness in each region, yielding overall score of 0-no involvement, to 72-most severe involvement. Pts achieving PASI100 were defined as having 100% improvement in the PASI score compared to baseline. Pts with active plaque PsO with a BSA≥3% \& PASI=0 at baseline were considered PASI100 responders if they had achieved PASI=0 \& BSA=0 at week 24.
SecondaryPercentage of Participants Achieving ACR50Week 24
ACR50 response is defined as a ≥50% improvement from baseline for tender joint count (TJC) and swollen joint count (SJC) and in at least 3 of the following 5 criteria: Participant's assessment of joint pain Visual Analog Scale (VAS), Participant's Global Assessment of Disease Activity (PatGA) VAS, Physician's Global Assessment of Disease Activity (PGA) VAS, participant's assessment of physical function using the Health Assessment Questionnaire-Disability Index (HAQ-DI), or High Sensitivity (assay) C-Reactive Protein (hs-CRP).
SecondaryPercentage of Participants Achieving PASI100Week 24
PASI is an index combining assessments of the extent of body-surface involvement in head, trunk, arms, legs, and severity of desquamation, erythema and plaque thickness in each region, yielding overall score of 0-no involvement, to 72-most severe involvement. Participants achieving PASI100 were defined as having 100% improvement in the PASI score compared to baseline. Any participants with active plaque psoriasis (PsO) with a BSA ≥3% and PASI = 0 at baseline were considered PASI100 responders if \& only if they had achieved PASI=0 \& BSA=0 at week 24.
OtherChange From Baseline in Tender Joint Count (TJC)Baseline, Week 52
TJC is the number of tender and painful joints determined for each participant by examination of 68 joints. Joints were assessed by pressure and joint manipulation on physical examination. Participants were asked for pain sensations on these manipulations and watched for spontaneous pain reactions. Any positive response on pressure, movement, or both was translated into a single tender-versus-nontender dichotomy. Least Square(LS) Mean was calculated using Mixed Model Repeated Measures (MMRM) model that included treatment group, concomitant conventional synthetic disease-modifying anti-rheumatic drugs (csDMARD) use at baseline, moderate-to-severe plaque psoriasis involvement, visit as fixed factors, baseline value as covariate and baseline-by-visit and treatment-by-visit interactions terms.
OtherChange From Baseline in Swollen Joint Count (SJC)Baseline, Week 52
SJC is the number of swollen joints determined for each participant by examination of 66 joints. Joints were classified as either swollen or not swollen. Swelling was defined as palpable fluctuating synovitis of the joint. LS mean was calculated using MMRM model that included treatment group, concomitant conventional synthetic disease-modifying anti-rheumatic drugs (csDMARD) use at baseline, moderate-to-severe plaque psoriasis involvement, visit as fixed factors, baseline value as covariate and baseline-by-visit and treatment-by-visit interactions terms.
OtherChange From Baseline in Participant's Assessment of Pain Visual Analogue Score (VAS)Baseline, Week 52
The pain VAS is a participant-administered single-item scale designed to measure current joint pain from Psoriatic arthritis (PsA) using a 100-millimeter(mm) horizontal VAS. Overall severity of participant's joint pain from PsA is indicated by marking a vertical tick on the horizontal 100-mm scale, where the left end from 0 mm (no pain) to right end 100 mm (worst possible joint pain). LS mean was calculated using MMRM model that included treatment group, concomitant csDMARD use at baseline, moderate-to-severe plaque psoriasis involvement, visit as fixed factors, baseline value as covariate and baseline-by-visit and treatment-by-visit interactions terms.
OtherChange From Baseline in Participant's Global Assessment of Disease ActivityBaseline, Week 52
The patient's overall assessment of his or her PsA activity was recorded using a 100-mm horizontal VAS, where 0 represents no disease activity and 100 represents extremely active disease. LS mean was calculated using MMRM model that included treatment group, concomitant csDMARD use at baseline, moderate-to-severe plaque psoriasis involvement, visit as fixed factors, baseline value as covariate and baseline-by-visit and treatment-by-visit interactions terms.
OtherChange From Baseline in Physician's Global Assessment of Disease ActivityBaseline, Week 52
The investigator was asked to give an overall assessment of the severity of the participant's current PsA activity using a 100-mm horizontal VAS, where 0 represents no disease activity and 100 represents extremely active disease. LS mean was calculated using MMRM model that included treatment group, concomitant csDMARD use at baseline, moderate-to-severe plaque psoriasis involvement, visit as fixed factors, baseline value as covariate and baseline-by-visit and treatment-by-visit interactions terms.
OtherChange From Baseline in C-Reactive Protein (CRP)Baseline, Week 52
CRP is the ACR Core Set laboratory measure of acute-phase reactant. It was measured with a high sensitivity assay at the central laboratory to help assess the effect of ixekizumab on the participant's PsA. LS mean was calculated using MMRM model that included treatment group, concomitant csDMARD use at baseline, moderate-to-severe plaque psoriasis involvement, visit as fixed factors, baseline value as covariate and baseline-by-visit and treatment-by-visit interactions terms.
OtherChange From Baseline in HAQ-DIBaseline, Week 52
HAQ-DI is a participant reported questionnaire that measures disease-associated disability (physical function). It consists of 24 questions with 8 domains: dressing/grooming, arising, eating, walking, hygiene, reach, grip, and other daily activities. The disability section scores the participant's self-perception on the degree of difficulty (0 = without any difficulty, 1 = with some difficulty, 2 = with much difficulty, and 3 = unable to do), covering the 8 domains. The reported use of special aids or devices and/or the need for assistance of another person to perform these activities is assessed. The HAQ-DI is a composite ranging from 0-3 with lower scores indicating less functional disability. LS mean was calculated using MMRM model that included treatment group, concomitant csDMARD use at baseline, moderate-to-severe plaque psoriasis involvement, visit as fixed factors, baseline value as covariate and baseline-by-visit and treatment-by-visit interactions terms.

Outcomes29

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage of Participants Simultaneously Achieving American College of Rheumatology 50 (ACR50) and Psoriasis Area and Severity Index 100 (PASI100)Week 24
All randomized participants. Per protocol and statistical analysis plan, the primary and secondary analysis were performed to compare all ixekizumab participants together versus all adalimumab participants together.
percentage of participantsNUMBER
SECONDARYPercentage of Participants Achieving ACR50Week 24
All randomized participants. Per protocol and statistical analysis plan, the primary and secondary analysis were performed to compare all ixekizumab participants together versus all adalimumab participants together.
percentage of participantsNUMBER
SECONDARYPercentage of Participants Achieving PASI100Week 24
All randomized participants. Per protocol and statistical analysis plan, the primary and secondary analysis were performed to compare all ixekizumab participants together versus all adalimumab participants together.
percentage of participantsNUMBER
OTHER_PRE_SPECIFIEDChange From Baseline in Tender Joint Count (TJC)Baseline, Week 52
All randomized participants who had a baseline and at least one post-baseline TJC value. Per protocol and statistical analysis plan, the primary and secondary analysis were performed to compare all ixekizumab participants together versus all adalimumab participants together.
score on a scaleLEAST_SQUARES_MEAN
OTHER_PRE_SPECIFIEDChange From Baseline in Swollen Joint Count (SJC)Baseline, Week 52
All randomized participants who had a baseline and at least one post-baseline SJC value. Per protocol and statistical analysis plan, the primary and secondary analysis were performed to compare all ixekizumab participants together versus all adalimumab participants together.
score on a scaleLEAST_SQUARES_MEAN
OTHER_PRE_SPECIFIEDChange From Baseline in Participant's Assessment of Pain Visual Analogue Score (VAS)Baseline, Week 52
All randomized participants who had a baseline and at least one post-baseline VAS value. Per protocol and statistical analysis plan, the primary and secondary analysis were performed to compare all ixekizumab participants together versus all adalimumab participants together.
millimeters (mm)LEAST_SQUARES_MEAN
OTHER_PRE_SPECIFIEDChange From Baseline in Participant's Global Assessment of Disease ActivityBaseline, Week 52
All randomized participants who had a baseline and at least one post-baseline VAS value. Per protocol and statistical analysis plan, the primary and secondary analysis were performed to compare all ixekizumab participants together versus all adalimumab participants together.
Millimeter (mm)LEAST_SQUARES_MEAN
OTHER_PRE_SPECIFIEDChange From Baseline in Physician's Global Assessment of Disease ActivityBaseline, Week 52
All randomized participants who had a baseline and at least one post-baseline VAS value. Per protocol and statistical analysis plan, the primary and secondary analysis were performed to compare all ixekizumab participants together versus all adalimumab participants together.
Millimeter (mm)LEAST_SQUARES_MEAN
OTHER_PRE_SPECIFIEDChange From Baseline in C-Reactive Protein (CRP)Baseline, Week 52
All randomized participants who had a baseline and at least one post-baseline CRP value. Per protocol and statistical analysis plan, the primary and secondary analysis were performed to compare all ixekizumab participants together versus all adalimumab participants together.
Milligram per Liter (mg/L)LEAST_SQUARES_MEAN
OTHER_PRE_SPECIFIEDChange From Baseline in HAQ-DIBaseline, Week 52
All randomized participants who had a baseline and at least one post-baseline HAQ-DI value. Per protocol and statistical analysis plan, the primary and secondary analysis were performed to compare all ixekizumab participants together versus all adalimumab participants together.
score on a scaleLEAST_SQUARES_MEAN

Results by group68

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percentage of Participants Simultaneously Achieving American College of Rheumatology 50 (ACR50) and Psoriasis Area and Severity Index 100 (PASI100)Ixekizumab3695% Confidence Interval 30.4 to 41.6percentage of participants
Percentage of Participants Simultaneously Achieving American College of Rheumatology 50 (ACR50) and Psoriasis Area and Severity Index 100 (PASI100)Adalimumab27.995% Confidence Interval 22.7 to 33.1percentage of participants
Percentage of Participants Achieving ACR50Ixekizumab50.595% Confidence Interval 44.7 to 56.4percentage of participants
Percentage of Participants Achieving ACR50Adalimumab46.695% Confidence Interval 40.8 to 52.5percentage of participants
Percentage of Participants Achieving PASI100Ixekizumab60.195% Confidence Interval 54.4 to 65.8percentage of participants
Percentage of Participants Achieving PASI100Adalimumab46.695% Confidence Interval 40.8 to 52.5percentage of participants
Change From Baseline in Tender Joint Count (TJC)Ixekizumab-15.91Standard Error 0.566score on a scale
Change From Baseline in Tender Joint Count (TJC)Adalimumab-14.88Standard Error 0.569score on a scale
Change From Baseline in Swollen Joint Count (SJC)Ixekizumab-9.58Standard Error 0.196score on a scale
Change From Baseline in Swollen Joint Count (SJC)Adalimumab-9.53Standard Error 0.198score on a scale

Participant flow22

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Open-Label Treatment PeriodSTARTEDIxekizumab283
Open-Label Treatment PeriodSTARTEDAdalimumab283
Open-Label Treatment PeriodReceived at Least One Dose of Study DrugIxekizumab283
Open-Label Treatment PeriodReceived at Least One Dose of Study DrugAdalimumab283
Open-Label Treatment PeriodIXE 160 mg at Baseline, 80 mg Q2W/Q4WIxekizumab49
Open-Label Treatment PeriodIXE 160 mg at Baseline, 80 mg Q2W/Q4WAdalimumab0
Open-Label Treatment PeriodIXE 160 mg at Baseline, 80 mg Q4WIxekizumab218
Open-Label Treatment PeriodIXE 160 mg at Baseline, 80 mg Q4WAdalimumab0
Open-Label Treatment PeriodADA 80 mg at Baseline, 40 mg Q2WIxekizumab0
Open-Label Treatment PeriodADA 80 mg at Baseline, 40 mg Q2WAdalimumab51

Adverse events268

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherInjection site reactionGeneral disordersIxekizumab1628330
otherInjection site reactionGeneral disordersAdalimumab42839
otherInjection site reactionGeneral disordersIxekizumab Follow-up02650
otherInjection site reactionGeneral disordersAdalimumab Follow-up02600
otherNasopharyngitisInfections and infestationsIxekizumab3828346
otherNasopharyngitisInfections and infestationsAdalimumab2328326
otherNasopharyngitisInfections and infestationsIxekizumab Follow-up52655
otherNasopharyngitisInfections and infestationsAdalimumab Follow-up32603
otherUpper respiratory tract infectionInfections and infestationsIxekizumab1828321
otherUpper respiratory tract infectionInfections and infestationsAdalimumab1828323

Adverse event totals12

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityIxekizumab0283
Total, all-cause mortalityAdalimumab0283
Total, all-cause mortalityIxekizumab Follow-up0265
Total, all-cause mortalityAdalimumab Follow-up0260
Total, other adverse eventsIxekizumab65283
Total, other adverse eventsAdalimumab44283
Total, other adverse eventsIxekizumab Follow-up8265
Total, other adverse eventsAdalimumab Follow-up5260
Total, serious adverse eventsIxekizumab12283
Total, serious adverse eventsAdalimumab35283

Papers6

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
32660977DERIVEDPubMed
33200394DERIVEDPubMed
35279805DERIVEDPubMed
35393269DERIVEDPubMed
37400681DERIVEDPubMed
40014255DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons1

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

Comparison
Ixekizumab vs Adalimumab: Number of Participants Who Answered Yes to Any 10 Questions in Columbia Suicide Severity Rating Scale (C-SSRS)

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT03151551

GET https://conductscience.org/api/trials/v1/NCT03151551/registered?page=2