Allergic Rhinitis Clinical Trial
Official title:
A Single-center, Randomized, Double Blind, Placebo-Controlled, Parallel Group Study to Investigate the Relative Efficacy and Safety of Immunotherapy With SUBLIVAC FIX Phleum Pratense in Grass Pollen-Allergic Subjects With IgE-Mediated Seasonal ARC
The purpose of this study is to assess safety, tolerability and demonstrate a dose response
signal using Total Symptom Score (TSS), based on challenges with grass pollen in an
Environmental Exposure Chamber (EEC), followed by estimation of the minimum effective dose of
SUBLIVAC FIX Phleum (SP) after 10 months of treatment compared to placebo.
The study has 4 treatment groups: 3 different doses of SP and placebo will be tested.
The current dose range finding study with SP has been designed to test three different concentrations of SUBLIVAC FIX Phleum (SP) that includes 3 doses (10,000 AUN/mL; 40,000 AUN/mL; 80,000 AUN/mL) and placebo to demonstrate a dose response signal and to estimate the minimal effective dose of SP. The study will be conducted in the target population of seasonal allergic subjects in a fully validated Environmental Exposure Chamber (EEC) system. The EEC system is a facility that has temporal uniformity of airborne allergen (pollen) exposure to subjects. Use of the EEC ensures exposure to relatively consistent levels of allergen. This facility has been used in a number of immunotherapy trials and is an improved challenge model of AR compared to the previously used nasal provocation test. Treatment duration of this study is extended to 10 months. ;
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