A phase III, randomized, two-armed, double-blind, multicenter, parallel, active-controlled, non-inferiority clinical trial to compare efficacy and safety of dupilumab (AryoGen Co.) versus Dupixent® (Regeneron & Sanofi Co.) in patients with moderate to severe atopic dermatitis

Inclusion criteria:

Age between 18-75 years (patients with the age of 18 and 75 will be enrolled too) Have a diagnosis of chronic Atopic Dermatitis (based on American Academy of Dermatology Consensus Criteria 2014), for at least 3 months before the screening Moderate-to-severe Atopic Dermatitis patients with an EASI ≥16 at screening and before the first administration of the study drug • Eczema Area and Severity Index (EASI) is a tool to assess the severity and extent of atopic eczema, which would be scored based on physician’s diagnosis. It is scored from 0-72, where a greater number indicates of more severe disease.• If EASI score is 14 or 15 at screening, re-evaluation within 48 hours after the first assessment is possible. Have an involved BSA ≥10 percent at screening• Body Surface Area (BSA) is scored based on physician’s diagnosis, which indicates the extent of disease involvement thorugh skin lesions. A greater number indicates of more severe disease. Have an IGA ≥3 at screening• Investigator’s Global Assessment (IGA) is a 5-score (0-4) index which is scored based on physician’s judgement to report the severity of the disease. A greater number indicates of more severe disease. History of inadequate response to treatment with topical corticosteroids• Inadequate response to treatment definition: no proper response to medium to high potency topical corticosteroids for 4 weeks or history of receiving systemic treatment for atopic dermatitis. Ability to comprehend and willingness to sign the informed consent form for this study.

Exclusion criteria:

Pregnant or nursing women, or women planning a pregnancy during the study Has previously received dupilumab Treatment with biologics as follows:- Any cell-depleting agents such as rituximab, ocrelizumab and belimumab within 6 months before the screening, Other biologics such as anti-TNFs (like adalimumab) and Interleukin-6 inhibitors (like tocilizumab) within 5 half-lives or 16 weeks prior to screening (whichever is longer) Phototherapy, laser therapy, or regular use of a tanning booth/parlor (more than 2 times per week) within 4 weeks before the screening Having used any of the following systemic immunosuppressants / immunomodulators within 4 weeks before the first administration of the study intervention: Systemic corticosteroids, Cyclosporine, Mycophenolate-mofetil, Janus kinase inhibitors, Azathioprine, Methotrexate Has received any investigational agent/drug within 30 days or passing less than 5 half-lives of the investigational agent (whichever is longer) before the first administration of the study intervention or participating in clinical studies consisting of any investigational agent or procedure. Has received, or is planning to receive, any live virus or bacterial vaccination within 12 weeks before the first administration of the study intervention. Chronic or acute infections requiring systemic treatment with antibiotics, antivirals, antiparasitics such as anthelmintics, antiprotozoals, or antifungals within 2 weeks before the first administration of the study intervention, or superficial skin infections within 1 week before the first administration of the study intervention History or diagnosis of hepatitis B, hepatitis C, or Human Immunodeficiency Virus (HIV) infection History or diagnosis of malignancy within 5 years before the screening (except treated in situ carcinoma of the cervix and resolved non-metastatic squamous or basal cell carcinoma of the skin) Has any plan of major surgical procedure during the study Substance abuse, dermatologic disease such as psoriasis or alopecia areata or any other condition (such as active major autoimmune diseases (like lupus or inflammatory bowel disease), severe renal failure (patients undergoing dialysis), moderate to severe hepatic disorders (ALT or AST more than 100 IU/L), or stage III or IV of cardiac failure according to the New York Heart Association (NYHA) classification) which, in the opinion of the investigator, will make the subject inappropriate for enrolling the study or that could limit or confound the protocol-specified assessments

Target sample size: 150