A Study to Test the Effect of the Drug Larotrectinib in Adults and Children With NTRK-fusion Positive Solid Tumors ~95 mi. (Narimedu, India, +118 more cities) Jawaharlal Institute Of Postgraduate Medical Education and R NTRK1 Fusion, +2 more biomarkers Biliary Tract Carcinoma, +12 more conditions larotrectinib targeted therapy