A Pilot Study of Tralokinumab in Subjects With Moderate to Severe Alopecia Areata

Inclusion Criteria

• Male or female, aged from 18 to 75 years, inclusively at the time of signing the informed consent document.
• Subject has provided written informed consent prior to any study specific procedures.
• Body weight of ≥40 and stage V.
• Subjects in whom the diagnosis of alopecia areata is in question.
• Any disorder, including but not limited to, cardiovascular, gastrointestinal, hepatic, renal, neurological, musculoskeletal, infectious, endocrine, metabolic, haematological, psychiatric, or major physical impairment that is not stable in the opinion of the Investigator and could:
• Affect the safety of the subject throughout the study
• Influence the findings of the studies or their interpretations
• Impede the subject's ability to complete the entire duration of study
• Known history of allergy or reaction to any component of the IP formulation.
• History of anaphylaxis following any biologic therapy.
• The following treatments within 4 weeks before the Baseline visit, or any condition that, in the opinion of the investigator, will likely require such treatment(s) at any time during the study:
• Systemic corticosteroids
• Immunosuppressive/immunomodulating drugs (eg, cyclosporine, mycophenolate-mofetil, IFN-γ, Janus kinase (JAK) inhibitors, azathioprine or methotrexate), Ultra-Violet (UV) B phototherapy; and/or Psoralen Ultra-Violet A (PUVA) therapy.
• Treatment with topical corticosteroids, tacrolimus and/or pimecrolimus within 1 week before the Baseline visit.
• Subject has taken enzyme-modifying drugs that are moderate inhibitors/potent inducers of cytochrome P450 3A4 or potent inhibitors of cytochrome P450 2C19 enzymes (such as cimetidine, quinidine, erythromycin, ciprofloxacin, fluconazole, ketoconazole etc…) and strong inducers of CYP enzymes (such as rifampin etc…), in the previous 28 days before day 0.
• A helminth parasitic infection diagnosed within 6 months prior to the date informed consent or assent obtained that has not been treated with, or has failed to respond to, standard of care therapy.
• History of clinically significant infection, including acute upper or lower respiratory infections, requiring antibiotics or antiviral medication within 30 days prior to the date informed consent or assent is obtained or during the run-in period.
• Tuberculosis requiring treatment within the 12 months prior to enrolment (Visit 1).
• Any clinically significant abnormal findings in physical examination, vital signs, ECG, hematology, clinical chemistry, or urinalysis during the run-in period, which in the opinion of the Investigator, may put the subject at risk because of his/her participation in the study, or may influence the results of the study, or the subject's ability to complete entire duration of the study.
• History of chronic alcohol or drug abuse within 12 months of the enrolment visit, or a condition associated with poor compliance as judged by the Investigator.
• Positive hepatitis B surface antigen or hepatitis C virus antibody serology. Subjects with a history of hepatitis B vaccination without a history of hepatitis B are allowed to be enrolled.
• History of any known primary immunodeficiency disorder including a positive human immunodeficiency virus (HIV) test at enrolment, or the subject taking antiretroviral medications as determined by medical history and/or subject's verbal report.
• Current tobacco smoking (smoking must have stopped for ≥ 3 months prior to enrollment) or a history of tobacco smoking for ≥ 10 pack-years (one pack year = 20 cigarettes smoked per day for 1 year).
• History of cancer: - Subjects who have had basal cell carcinoma, localized squamous cell carcinoma of the skin or in situ carcinoma of the cervix are eligible provided that the subject is in remission and curative therapy was completed at least 12 months prior to the date informed consent was obtained Subjects who have had other malignancies are eligible provided that the subject is in remission and cura