BAAR, Switzerland--(BUSINESS WIRE)--Oct 30, 2025--

Stallergenes Greer, a global leader in allergy therapeutics, announced today that its Phase IIIb clinical study (YOBI, YOung patients and BIrch allergy), designed to confirm the safety and efficacy of Staloral® Birch in children and adolescents with birch pollen-induced allergic rhino-conjunctivitis (ARC), with or without asthma, has successfully achieved its primary endpoint.

The trial enrolled 553 children aged 5 -17 years with moderate to severe birch pollen-induced ARC, with or without asthma, across 64 sites in 12 European countries and assessed the efficacy and safety of Staloral® birch 300IR daily maintenance dose administered pre-and co-seasonally over two consecutive birch pollen seasons.

The YOBI study successfully met its pri

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