Type I Hypersensitivity Clinical Trial
Official title:
A Double-Blind Phase IIb Study to Evaluate the Safety and Efficacy of Different Doses of Tyrosine Adsorbed Ragweed Allergoid With MPL® With a Single-Blind Portion to Evaluate the Residual Allergenicity in Skin Test in Patients Sensitized to Ragweed Pollen.
The purpose of this study is to assess the immunological differences between three RagweedMATAMPL treatment arms compared to placebo with respect to immunoglobulin levels. In addition, the study will assess the reduced allergenicity of modified Ragweed Pollen contained in RagweedMATAMPL compared to unmodified native allergen using skin prick testing.
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