Evaluation of ALLERgen Specific Vaccination of DOG Allergic Patients in Swedish Practice

Inclusion Criteria The subject has provided written informed consent to participate in the study. * Age 18-50 years. * Moderate-to-severe allergic symptoms upon exposure to dogs. * Dog allergy confirmed by positive specific IgE. * Considered suitable by the investigator for treatment with Alutard SQ Dog in accordance with the approved Summary of Product Characteristics (SmPC). * Female subjects of childbearing potential must use adequate contraception. * A negative pregnancy test must be obtained prior to enrolment. Exclusion Criteria * Pregnancy or breastfeeding. * Autoimmune or connective tissue disease. * Cardiovascular disease. * Hepatic disease. * Renal disease. * Malignancy. * Upper airway disease (e.g., non-allergic sinusitis or nasal polyposis). * Chronic obstructive or restrictive lung disease. * Treatment with medications that may interfere with the immune response. * Previous immunotherapy or chemotherapy. * Significant chronic disease. * Major metabolic disease. * Alcohol or substance abuse. * Mental or cognitive incapacity that may impair compliance with study procedures. * Known or suspected hypersensitivity to the study product. * Suspected or confirmed bacterial infection. * Clinically relevant allergy to house dust mite. * Current dog ownership. * Any condition that, in the investigator's opinion, may make participation, follow-up, or study assessments inappropriate. * Any subject considered unsuitable for enrolment according to the principles of the Declaration of Helsinki.