Merck Sharp & Dohme LLC
The goal of the study is to learn about the safety of Sacituzumab Tirumotecan and if people can tolerate it when given in the bladder and find the highest dose that people can take without having certain problems. Researchers will then choose a dose level of Sacituzumab Tirumotecan to use in future studies to learn how well the drug works.
Inclusion Criteria: The key inclusion criteria include but are not limited to the following: * Has recurrent low-grade (Ta) Non-Muscle Invasive Bladder Cancer (NMIBC) in the bladder * Must have visible tumor by cystoscopy within 12 weeks prior to first dose * Has intermediate-risk NMIBC defined as 1 or more of the following risk factors: * Multiple tumors * \>1 occurrence of low-grade NMIBC within 1 year of the current diagnosis at Screening * Early recurrence (\<1 year) of the initial diagnosis of low-grade disease * Solitary tumor \>3 cm * Failure of prior intravesical treatment…
Intravesical administration
Participants are allowed to take rescue medication for stomatitis or oral mucositis. At the discretion of the investigator, participants are provided with a prescription for rescue medications. Recommended rescue medications are antihistamine, histamine-2 (H2) receptor antagonist, acetaminophen or equivalent, dexamethasone or equivalent infusion or steroid mouthwash (dexamethasone or equivalent), antiemetic medications, oral nystatin suspension or antifungal medications, antidiarrheal agents, antiemetic agents, opiate and non-opiate analgesic agents, appetite stimulants, and granulocyte and erythroid growth factors.
Participants are allowed to take supportive care measures for the management of adverse events associated with study intervention at the discretion of the investigator. Artificial tear drops or gel may be given as a supportive care for Ocular Surface Toxicity.