| 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  | 
 | 
| E.1.1.2 | Therapeutic area  | Diseases [C] - Skin and Connective Tissue Diseases [C17] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 21.1 | 
 
| E.1.2 | Level  | LLT | 
 
| E.1.2 | Classification code  | 10003639 | 
 
| E.1.2 | Term  | Atopic dermatitis | 
 
| E.1.2 | System Organ Class  | 100000004858 | 
 
 
 | 
| 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  | 
To evaluate the efficacy of lebrikizumab
 compared with placebo in patients not
 adequately controlled with cyclosporine or for
 whom cyclosporine is not medically advisable
 up to Week 16 | 
 
 
 | 
| E.2.2 | Secondary objectives of the trial  | 
To evaluate the efficacy in patients not
 adequately controlled with cyclosporine or for
 whom cyclosporine is not medically advisable
 between Week 16 up to Week 52. | 
 
 
 | 
| E.2.3 | Trial contains a sub-study  |  No  | 
| E.3 | Principal inclusion criteria  | 
1. Adults and adolescents (aged ≥12 to <18 years at the time of ICF/IAF and weighing ≥40
 kg)
 2. Chronic AD (according to Hanifin and Rajka Criteria) that has been present for ≥1 year
 before the Screening visit
 3. EASI score ≥16 at the Baseline Visit
 4. IGA score ≥3 (moderate) (scale of 0 [clear] to 4 [severe]) at the Baseline visit
 5. ≥10% BSA of AD involvement at the Baseline visit
 6. Documented history by a physician of an inadequate response to existing topical
 medications within 6 months before Screening, defined as: inability to achieve good disease
 control (eg, not able to achieve IGA ≤2) after use of at least a mid-potency TCS for
 at least 4 weeks, or for the maximum duration recommended by the product prescribing
 information (eg, 14 days for high/very-high-potency TCS), whichever is shorter
 7. Documented history by a physician of either:
 a) No previous CsA exposure and not currently a candidate for CsA treatment because of
 i. medical contraindications (eg, uncontrolled hypertension on medication), or
 ii. use of prohibited concomitant medications (eg, statins, digoxin, macrolide
 antibiotics, barbiturates, anti-seizure drugs, nonsteroidal anti-inflammatory
 drugs, diuretics, angiotensin-converting-enzyme inhibitors, St John’s Wort,
 etc.), or
 iii. increased susceptibility to CsA-induced renal damage (elevated creatinine)
 and/or liver damage (elevated function tests results), or
 iv. increased risk of serious infections, or
 v. hypersensitivity to CsA active substance or excipients
 OR:
 b) Previous exposure to CsA; CsA treatment should not be continued or restarted because
 of
 i. intolerance and/or unacceptable toxicity (eg, elevated creatinine, elevated liver
 function test results, uncontrolled hypertension, paraesthesia, headache, nausea,
 hypertrichosis); or
 ii. requirement for CsA at doses or durations beyond those specified in the
 prescribing information or inadequate response
 8. Completed electronic diary (eDiary) entries for pruritus and sleep-loss for a minimum of 4
 of 7 days before randomisation
 9. Willing and able to comply with all clinic visits and study-related procedures and
 questionnaires
 10. For women of childbearing potential: agree to remain abstinent (refrain from heterosexual
 intercourse) or to use a highly effective contraceptive method during the treatment period
 and for at least 18 weeks after the last dose of lebrikizumab or placebo
 11. Male patients must agree to use an effective barrier method of contraception during the
 study and for a minimum of 18 weeks following the last dose of study drug if sexually
 active with a WOCBP
 12. Patient must provide signed ICF. Adolescent patients must also provide separate informed
 assent to enrol in the study and sign and date either a separate IAF or the ICF signed by the
 parent/legal guardian (as appropriate based on local regulations and requirements) | 
 
 
 | 
| E.4 | Principal exclusion criteria | 
1. Participation in a prior lebrikizumab clinical study
 2. Treatment with IL-4 or IL-13 antagonists biological therapies before the Baseline visit.
 Exception: previous treatment with dupilumab will be allowed in a subset of patients. A washout of at least 8
 weeks before the Baseline visit will be required for this subpopulation
 3. Treatment with TCS within 1 week before the Baseline visit
 4. Treatment with topical calcineurin inhibitors, phosphodiesterase-4 inhibitors such as
 crisaborole, or cannabinoids within 2 week before the Baseline visit
 5. Treatment with any of the following agents within 4 weeks before the Baseline visit:
 a. Immunosuppressive/immunomodulating drugs (eg, systemic corticosteroids,
 cyclosporine, mycophenolate-mofetil, interferon-γ, JAK inhibitors, azathioprine,
 methotrexate, etc.)
 b. Phototherapy and photochemotherapy (PUVA) for AD
 6. Treatment with the following before the Baseline visit:
 a. An investigational drug within 8 weeks or within 5 half-lives (if known), whichever is
 longer;
 b. B cell-depleting biologics, including but not limited to rituximab, within 6 months;
 c. Other biologics within 16 weeks or 5 half-lives (if known) , whichever is longer
 7. Treatment with a live (attenuated) vaccine within 18 weeks of the Baseline visit, planned
 during the study, or 12 weeks after the study treatment is discontinued
 8. History of anaphylaxis as defined by the Sampson criteriaï‚·40
 9. Regular use (more than 2 visits per week) of a tanning booth/parlor within 4 weeks of the
 Screening visit
 10. Uncontrolled chronic disease that might require bursts of oral corticosteroids, eg, comorbid
 severe uncontrolled asthma (defined by an Asthma Control Questionnaire-5 score
 ≥1.5 or a history of ≥2 asthma exacerbations within the last 12 months requiring systemic
 [oral and/or parenteral] corticosteroid treatment or hospitalisation for >24 hours)
 11. Have had any of the following types of infection within 3 months of Screening or develop
 any of these infections before randomisation:
 a. Serious (requiring hospitalisation, and/or IV or equivalent oral antibiotic treatment);
 b. Opportunistic (as defined in Winthrop et al. 2015). NOTE: Herpes zoster is considered
 active and ongoing until all vesicles are dry and crusted over;
 c. Chronic (duration of symptoms, signs, and/or treatment of 6 weeks or longer);
 d. Recurring (including, but not limited to herpes simplex, herpes zoster, recurring
 cellulitis, chronic osteomyelitis)
 12. Have a current or chronic infection with hepatitis B virus
 13. Have a current infection with hepatitis C virus (ie, positive for hepatitis C RNA)
 14. Have known liver cirrhosis and/or chronic hepatitis of any etiology
 15. Diagnosed active endoparasitic infections or at high risk of these infections
 16. Known or suspected history of immunosuppression, including history of invasive
 opportunistic infections (eg, tuberculosis, histoplasmosis, listeriosis, coccidioidomycosis,
 pneumocystosis, and aspergillosis) despite infection resolution: or unusually frequent,
 recurrent, or prolonged infections, per the Investigator’s judgment
 17. History of HIV infection or positive HIV serology at Screening
 18. In the Investigator’s opinion, any clinically significant laboratory test results from the
 chemistry, haematology, or urinalysis tests obtained at the Screening visit
 19. Presence of skin comorbidities that may interfere with study assessments
 20. History of malignancy, including mycosis fungoides, within 5 years before the Screening
 visit, except completely treated in situ carcinoma of the cervix, completely treated and
 resolved nonmetastatic squamous or basal cell carcinoma of the skin with no evidence of
 recurrence in the past 12 weeks
 21. Severe concomitant illness(es) that in the Investigator’s judgment would adversely affect
 the patient’s participation in the study. Any other medical or psychological condition that
 in the opinion of the Investigator may suggest a new and/or insufficiently understood
 disease, may present an unreasonable risk to the study patient because of his/her
 participation in this clinical trial, may make patient’s participation unreliable, or may
 interfere with study assessments
 22. Pregnant or breastfeeding women, or women planning to become pregnant or breastfeed
 during the study
 23. Have had an important side effect to TCS (eg, intolerance to treatment, hypersensitivity
 reactions, significant skin atrophy, and systemic effects), as assessed by the Investigator or
 treating physician that would prevent further use
 
 | 
 
 
 | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
Percentage of patients
 achieving EASI 75 (≥75% reduction from
 Baseline in EASI score) at Week 16. | 
 
 
 | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
 | 
| E.5.2 | Secondary end point(s) | 
-Percentage of patients achieving IGA 0/1 and 2-point improvement at Week 16.
 -Percentage of patients achieving a 4- point improvement Pruritus NRS at Week 16.
 - % of patients achieving EASI 90 at Week 16.
 - % patients achieving EASI 75, EASI 90 and EASI 50 (by visit up to Week 16)
 - Change from Baseline BSA by visit up to Week 16
 - Change from Baseline SCORAD by visit up to Week 16
 - Change from Baseline Pruritus NRS by visit up to Week 16
 - Change from Baseline sleep loss by
 visit up to Week 16
 - Change from Baseline POEM by visit up to Week 16
 - Change from Baseline DLQI/CDLQI by visit up to Week 16
 - % patients achieving a 4-point improvement DLQI/CDLQI by visit up
 to Week 16
 - Proportion of TCS-free days from Baseline by visit up to Week 16
 -Time to TCS-free use (days) up to Week 16
 - Change from Baseline Skin Pain NRS by visit up to Week 16
 - % patients achieving a 4-point improvement Skin Pain NRS at Week
 16.
 
 | 
 
 
 | 
| 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 |  No  | 
| E.6.7 | Pharmacodynamic |  No  | 
| E.6.8 | Bioequivalence |  No  | 
| E.6.9 | Dose response |  No  | 
| E.6.10 | Pharmacogenetic |  No  | 
| 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 |  Information not present in EudraCT  | 
| 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 |  Yes  | 
| E.8.1.7.1 | Other trial design description | 
| 2 part of the study - first double-blind, second part open label | 
 
 
 | 
| 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 | 2 | 
| 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 | 6 | 
| E.8.5 | The trial involves multiple Member States |  Yes  | 
| E.8.5.1 | Number of sites anticipated in the EEA | 73 | 
| 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 | 
| Austria | 
 
| France | 
 
| Poland | 
 
| Netherlands | 
 
| Spain | 
 
| Germany | 
 
| Italy | 
 
| Belgium | 
 
| United Kingdom | 
 
 
 | 
| E.8.7 | Trial has a data monitoring committee |  No  | 
| 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
                     | 
The “end of trial” is defined as the date when all patients randomised in the trial complete
 follow-up contact (either Treatment Completers or those Prematurely Discontinued), or are lost
 to follow-up and have not been able to be contacted, and will be communicated to Competent
 Authorities and the independent ethics committee (IEC) in due time according to local
 regulations. | 
 
 
 | 
| 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 | 24 | 
| E.8.9.1 | In the Member State concerned days |  | 
| E.8.9.2 | In all countries concerned by the trial months | 24 |