Testing a new allergy shot for grass and olive pollen allergies

This trial is testing a new allergy treatment given as subcutaneous immunotherapy (shots under the skin) to help people who are allergic to grass and olive pollen. Participants will receive either the active medication, a different dose of the active medication, or a placebo (inactive shot) over the course of one year. The goal is to see if this treatment can reduce allergy symptoms and improve quality of life.

Many people suffer from allergies to grass and olive pollen that cause sneezing, congestion, and other bothersome symptoms. This medication aims to train the immune system to be less reactive to these pollens, offering a longer-term solution than just treating symptoms with antihistamines or steroid sprays.