This clinical trial focuses on treating patients with allergic rhinitis and rhinoconjunctivitis caused by birch pollen. These conditions cause symptoms like nasal congestion, runny nose, and eye irritation during birch pollen season. The study tests a medication called SLI-RX-BET, which is given as a spray under the tongue (sublingual spray) and contains birch pollen extract.
The purpose of this study is to find the most effective and safest dose of SLI-RX-BET for treating birch pollen allergies. The medication will be tested in three different strengths (low, medium, and high dose), and some participants will receive a placebo. The treatment involves daily use of the spray for approximately 10 months.
During the study, participants will need to track their allergy symptoms and use of additional medications during the birch pollen season. The treatment is specifically designed for people who have experienced moderate to severe allergic symptoms from birch pollen for at least two years. The medication aims to help reduce allergy symptoms and decrease the need for other allergy medications.



Germany