A Phase 2A/B, Multi-center, Open-Label Study Evaluating the Efficacy and Safety of Dabogratinib (TYRA-300) in Participants With Low Grade Upper Tract Urothelial Carcinoma (SURF303)

1. Participants ≥ 18 years of age at the time of informed consent and willing and able to comply with all required study procedures 2. Confirmed LOW RISK LG UTUC (both favorable and unfavorable) per AUA 3. At least 5mm of marker lesion left behind 4. Participants must have previous genomic report or archival/fresh tissue in addition to urine sample for retrospective genomic testing 5. Identification of marker lesion(s) within 8 weeks prior to randomization (refer to Inclusion Criterion #2) 6. If synchronous NMIBC, NMIBC must be fully resected and low-grade Ta or T1 7. No prior BCG administrati…