Loxo Oncology, Inc, a biopharmaceutical company innovating the development of highly selective medicines for patients with genetically defined cancers, announced that the U.S. Food and Drug Administration (FDA) has granted Breakthrough Therapy Designation to LOXO-101, a selective inhibitor of tropomyosin receptor kinase (TRK), “for the treatment of unresectable or metastatic solid tumors with NTRK-fusion proteins in adult and pediatric patients who require systemic therapy and who have either progressed following prior treatment or who have no acceptable alternative treatments.”