A Clinical Study of Sacituzumab Tirumotecan (MK-2870) in Patients With Bladder Cancer (MK-2870-027)

Condition(s) studied

Investigational drug(s) / intervention(s)

Sacituzumab tirumotecan: Intravesical administration

Rescue medication: 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.

Supportive care measures: 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.

Study summary

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.

Eligibility

Primary outcome measure(s)

• Number of Participants with Dose Limiting Toxicity (DLT) — Up to approximately 7 weeks
  DLT will be defined as any drug-related adverse event (AE) observed during the DLT evaluation period (7 weeks). All toxicities will be graded using National Cancer Institute Common Terminology for Adverse Events (NCI CTCAE) version 5.0.
• Number of Participants Experiencing an Adverse Event (AE) — Up to approximately 10 weeks
  An AE is defined as any untoward medical occurrence in a participant administered a study treatment which did not necessarily have to have a causal relationship with this treatment. An AE could be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of study treatment, is also an AE. The number of participants who experience an AE will be reported.
• Number of Participants Discontinuing Study Treatment due to an Adverse Event (AE) — Up to approximately 6 weeks
  An AE is defined as any untoward medical occurrence in a participant administered a study treatment which did not necessarily have to have a causal relationship with this treatment. An AE could be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of study treatment, is also an AE. The number of participants who discontinue study treatment due to an AE will be reported.

Trial sites (13)

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