Doptelet Sprinkle (avatrombopag) was approved as an effective formulation for children one year to less than six years. The primary endpoint was met in 27.8% of patients, confirming the efficacy in children and adolescents with persistent or chronic ITP WALTHAM, Mass., July 25, 2025 (GLOBE NEWSWIRE) -- Sobi North America, the North American affiliate of Swedish Orphan Biovitrum AB (Sobi®), today announced that the U.S. Food and Drug Administration (FDA) approved Doptelet® (avatrombopag) for the treatment of ...