| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated  | 
| Systemic Lupus Erythematosus | 
 
 
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| E.1.1.1 | Medical condition in easily understood language  | 
| Lupus, a disease of the immune system | 
 
 
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| E.1.1.2 | Therapeutic area  | Diseases [C] - Immune System Diseases [C20] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 14.1 | 
 
| E.1.2 | Level  | PT | 
 
| E.1.2 | Classification code  | 10042945 | 
 
| E.1.2 | Term  | Systemic lupus erythematosus | 
 
| E.1.2 | System Organ Class  | 10028395 - Musculoskeletal and connective tissue disorders | 
 
 
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| 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  | 
| The primary objective of this study is to evaluate the efficacy of sifalimumab compared to placebo in subjects with chronic, moderately-to-severely active SLE. | 
 
 
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| E.2.2 | Secondary objectives of the trial  | 
- To evaluate the effect of sifalimumab compared to placebo in reducing background oral corticosteroids dosage, improving inflammatory cutaneous lupus lesions and fatigue.
 - Safety
 
 | 
 
 
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| E.2.3 | Trial contains a sub-study  |  No  | 
| E.3 | Principal inclusion criteria  | 
- Fulfils at least 4 of the 11 American College of Rheumatology (ACR) classification criteria for SLE, one of which must be:
 a) Significantly positive antinuclear antibody (ANA) test at screening by immunofluorescent assay (IFA) at central lab; OR
 b) Elevated anti-dsDNA or Sm antibody at screening as determined by central lab
 - Disease history of SLE ≥ 24 weeks at screening 
 - Weight > 40 kg 
 - Currently receiving stable dose of oral prednisone and/or antimalarials/immunosuppressives
 - Active moderate to severe SLE disease based on SLE disease activity score (SLEDAI) and British Isles Lupus Assessment Group Index (BILAG) and Physicians Global Assessment 
 - Females with an intact cervix must have no evidence of cervical malignancy documented on a Pap smear with 6 months of baseline 
 - Females must be willing to avoid pregnancy throughout the study including the 180 day follow-up safety period 
 - Negative TB test or newly positive TB test due to latent TB for which treatment must be initiated at or before randomization 
 
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| E.4 | Principal exclusion criteria | 
- Active severe SLE-driven renal disease or unstable renal disease prior to screening 
 - Active severe or unstable neuropsychiatric SLE 
 - Clinically significant active infection including ongoing and chronic infections 
 - History of HIV 
 - Confirmed Positive tests for Hepatitis B or positive test for hepatitis C 
 - History of severe herpes infection such as herpes encephalitis, ophthalmic herpes, disseminated herpes 
 - Herpes Zoster within 3 months of screening 
 - History of cancer other than basal cancer or cervical cancer treated with apparent success≥ 1 year prior to randomization 
 - Receipt of a biologic agent within 5 half-lives or prior to loss of pharmacodynamic and/or clinical effect (whichever is longer) prior to screening 
 - Live or attenuated vaccine within 4 weeks prior to screening 
 - Subjects with substance abuse 
 - Subjects with significant laboratory abnormalities in the hepatic, renal or hematologic systems | 
 
 
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| E.5 End points | 
| E.5.1 | Primary end point(s) | 
The primary efficacy endpoint for this study is the proportion of subjects achieving a response in an SLE responder index [SRI (4)] at Day 365 in subjects with chronic moderately-to-severely active SLE.
 
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| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
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| E.5.2 | Secondary end point(s) | 
Additional secondary endpoints include comparison between sifalimumab and placebo groups on the proportion of subjects able
 1. to reduce oral corticosteroids doses in subjects on ≥10 mg Prednisone equivalent at baseline 
 2. improve active inflammatory cutaneous lesions as measured by the CLASI 
 3. reduction in fatigue as measured by the Facit-Fatigue Scale
 
 
 | 
 
 
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| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
 | 
| 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 |  Yes  | 
| E.6.10 | Pharmacogenetic |  No  | 
| E.6.11 | Pharmacogenomic |  Yes  | 
| 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) |  Yes  | 
| E.7.3 | Therapeutic confirmatory (Phase III) |  No  | 
| 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 | 4 | 
| 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.8.5 | The trial involves multiple Member States |  Yes  | 
| E.8.5.1 | Number of sites anticipated in the EEA | 75 | 
| 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 | 
| Argentina | 
 
| Brazil | 
 
| Bulgaria | 
 
| Canada | 
 
| Chile | 
 
| France | 
 
| Germany | 
 
| Hungary | 
 
| India | 
 
| Italy | 
 
| Mexico | 
 
| Netherlands | 
 
| Peru | 
 
| Philippines | 
 
| Poland | 
 
| Romania | 
 
| South Africa | 
 
| Spain | 
 
| Thailand | 
 
| United Kingdom | 
 
| United States | 
 
 
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| 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
                     | 
| Last visit of the last subject undergoing the trial | 
 
 
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| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years |  | 
| 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 | 2 | 
| E.8.9.2 | In all countries concerned by the trial months | 10 | 
| E.8.9.2 | In all countries concerned by the trial days | 0 |