Efficacy and Safety of LAIS® Mites Sublingual Tablets

Inclusion Criteria: 1. Female or male patients aged 60 years or more with a history of at least two years of house dust mite (HDM) induced allergic rhinitis and/or allergic rhinoconjunctivitis with or without mild to moderate controlled asthma upon exposure to house dust mite \[From the Global Strategy for Asthma Management and Prevention, Global Initiative for Asthma (GINA) 2007. 2. Clinically relevant sensitization to mites. 3. Positive clinical history of allergy due to house dust mite (HDM), proven by- The majority of perennial clinical symptoms appearing mostly related to indoor mites allergens * Specific Immunoglobulin E reactivity to mites allergens (ImmunoCAP\>0.35 Ku/L) * Positive skin prick test (wheal diameter\> 3mm, negative control \< 2mm) 4. Retrospective Total Symptom Score (RRTSS) referred to the previous winter season greater than or equal to 8 5. Compliance and ability of the patient to complete a diary card for self-evaluation of the symptoms and anti-symptomatic medication 6. Signed and dated patient's Informed Consent Exclusion Criteria: 1. Simultaneous participation in other clinical trials 2. Previous immunotherapy with mite allergens or cross reacting allergens within the last 5 years 3. Ongoing immunotherapy with any allergen 4. Patients being in any relationship or dependency with the sponsor and/or investigator 5. Other reasons contra-indicating an inclusion into the trial according to the investigator's estimation (e.g. poor compliance, inability of the patient to understand study documents and instructions) 6. Predominant seasonal allergic rhinitis 7. Patients with clinically relevant sensitization to seasonal aero-allergens occurring during the study period may not be included. Also patients with clinically relevant sensitization to perennial allergens like animal dander may not be included 8. Uncontrolled asthma 9. Chronic asthma or emphysema, particularly with a forced expiratory volume \<70% of the predicted value and /or \<70% of the individual optimum value 10. Infections of the oral cavity with severe symptoms 11. Patients with Galactose-intolerance, Lactase-deficiency, Glucose-Galactose-malabsorption 12. Active tuberculosis 13. Generally inflammatory as well as severe acute and chronic inflammatory diseases 14. Irreversible secondary disorders at the target organ (e.g. emphysema, bronchiectasis) 15. Immune deficiency (for example induced by immunosuppressive drugs) 16. Physician diagnosed diseases of the liver, spleen, nervous system, thyroidal gland as well rheumatic diseases, based on an autoimmune mechanism, 17. Malignancy 18. Alcohol abuse as well as drug and / or medication abuse 19. Patients treated with contra-indicated drugs 20. Contra-indication for adrenalin (for example, acute or chronic symptomatic coronary heart disease, severe hypertension, hyperthyroidism) 21. Completed or ongoing long-term treatment with tranquilizer or psycho active drugs 22. Completed or ongoing treatment with anti-Specific Immunoglobulin E-antibody 23. Uncontrolled asthma according to GINA guideline criteria