| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated  | 
 | 
| E.1.1.1 | Medical condition in easily understood language  | 
| A type of arthritis associated with psoriasis | 
 
 
 | 
| E.1.1.2 | Therapeutic area  | Diseases [C] - Musculoskeletal Diseases [C05] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 20.0 | 
 
| E.1.2 | Level  | LLT | 
 
| E.1.2 | Classification code  | 10037160 | 
 
| E.1.2 | Term  | Psoriatic arthritis | 
 
| E.1.2 | System Organ Class  | 100000004859 | 
 
 
 | 
| E.1.3 | Condition being studied is a rare disease  |  No  | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial  | 
| Efficacy of ixekizumab (LY2439821) compared to placebo in participants with active psoriatic arthritis who are biologic disease-modifying antirheumatic drugs (bDMARD0-experienced, as measured by the percentage of patients achieving ACR20 response at Week 24. | 
 
 
 | 
| E.2.2 | Secondary objectives of the trial  | 
• Efficacy of ixekizumab compared to placebo in participants with active psoriatic arthritis based on ACR20 through 24 Weeks
 • Efficacy of ixekizumab compared to placebo in participants with active psoriatic arthritis based on Non-Arthritic Disease Assessments through 24 Weeks
 • Efficacy of ixekizumab compared to placebo in participants with active psoriatic arthritis based on Patient Reported Outcomes (PROs) through 24 Weeks
 
 | 
 
 
 | 
| E.2.3 | Trial contains a sub-study  |  No  | 
| E.3 | Principal inclusion criteria  | 
• Presents with established diagnosis of active psoriatic arthritis (PSA) for at least 6 months, and currently meets Classification for Psoriatic Arthritis (CASPAR) criteria
 • Active psoriatic arthritis defined as the presence of at least 3 tender and at least 3 swollen joints 
 • Presence of active psoriatic skin lesion or a history of plaque psoriasis (Ps) 
 • Men must agree to use a reliable method of birth control or remain abstinent during the study 
 • Women must agree to use reliable birth control or remain abstinent during the study and for at least 12 weeks after stopping treatment 
 • Have been treated with 1 or more conventional disease-modifying antirheumatic drugs (cDMARDs)
 
 | 
 
 
 | 
| E.4 | Principal exclusion criteria | 
• Current use of biologic agents for treatment of Ps or PsA
 • Inadequate response to greater than 2 bDMARDs
 • Current use of more than one cDMARD
 • Diagnosis of active inflammatory arthritic syndromes or spondyloarthropathies other than PsA
 • Have received treatment with IL-17 or IL12/23 targeted MAb therapy 
 • Serious disorder or illness other than psoriatic arthritis 
 • Serious infection within the last 3 months 
 • Breastfeeding or nursing (lactating) women
 
 | 
 
 
 | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| American College of Rheumatology 20 Index (ACR20) | 
 
 
 | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
 | 
| E.5.2 | Secondary end point(s) | 
• ACR20
 • Non-Arthritic Disease Assessments
 • Patient Reported Outcomes (PRO) | 
 
 
 | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
| Baseline through 24 Weeks | 
 
 
 | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis |  No  | 
| E.6.2 | Prophylaxis |  No  | 
| E.6.3 | Therapy |  Yes  | 
| E.6.4 | Safety |  Yes  | 
| E.6.5 | Efficacy |  Yes  | 
| E.6.6 | Pharmacokinetic |  Yes  | 
| E.6.7 | Pharmacodynamic |  Yes  | 
| E.6.8 | Bioequivalence |  No  | 
| E.6.9 | Dose response |  No  | 
| E.6.10 | Pharmacogenetic |  Yes  | 
| E.6.11 | Pharmacogenomic |  No  | 
| E.6.12 | Pharmacoeconomic |  No  | 
| E.6.13 | Others |  No  | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) |  No  | 
| E.7.1.1 | First administration to humans |  No  | 
| E.7.1.2 | Bioequivalence study |  No  | 
| E.7.1.3 | Other |  No  | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) |  No  | 
| E.7.3 | Therapeutic confirmatory (Phase III) |  Yes  | 
| E.7.4 | Therapeutic use (Phase IV) |  No  | 
| E.8 Design of the trial | 
| E.8.1 | Controlled |  Yes  | 
| E.8.1.1 | Randomised |  Yes  | 
| E.8.1.2 | Open |  No  | 
| E.8.1.3 | Single blind |  No  | 
| E.8.1.4 | Double blind  |  Yes  | 
| E.8.1.5 | Parallel group |  Yes  | 
| E.8.1.6 | Cross over  |  No  | 
| E.8.1.7 | Other |  No  | 
| E.8.2 |  Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) |  No  | 
| E.8.2.2 | Placebo  |  Yes  | 
| E.8.2.3 | Other |  No  | 
| E.8.2.4 | Number of treatment arms in the trial | 3 | 
| E.8.3 | 
                                The trial involves single site in the Member State concerned
                             |  No  | 
| E.8.4 |  The trial involves multiple sites in the Member State concerned  |  Yes  | 
| E.8.4.1 | Number of sites anticipated in Member State concerned | 7 | 
| E.8.5 | The trial involves multiple Member States |  Yes  | 
| E.8.5.1 | Number of sites anticipated in the EEA | 71 | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA |  Yes  | 
| E.8.6.2 | Trial being conducted completely outside of the EEA |  No  | 
| E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned | 
| Australia | 
 
| Czech Republic | 
 
| France | 
 
| Germany | 
 
| Israel | 
 
| Italy | 
 
| Poland | 
 
| Spain | 
 
| Taiwan | 
 
| United Kingdom | 
 
| United States | 
 
 
 | 
| E.8.7 | Trial has a data monitoring committee |  Yes  | 
| E.8.8 | 
                        Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial
                     | 
| End of the study is the date of the last visit or the last scheduled procedure for the last active subject in the study whichever is later | 
 
 
 | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 4 | 
| E.8.9.1 | In the Member State concerned months |  | 
| E.8.9.1 | In the Member State concerned days |  | 
| E.8.9.2 | In all countries concerned by the trial years | 4 | 
| E.8.9.2 | In all countries concerned by the trial months | 3 |