Phase 3 Study Comparing Sacituzumab Tirumotecan to Non-Platinum Chemotherapy for Advanced or Metastatic Urothelial Cancer

What this Trial Is About

Researchers are investigating new treatments for locally advanced or metastatic urothelial cancer UC, a type of bladder cancer that has spread or cannot be removed by surgery or radiation. This trial evaluates whether sacituzumab tirumotecan sac-TMT, an experimental medicine, can help people with UC who have already been treated with specific therapies live longer compared to those who receive certain non-platinum chemotherapy options. The study is a Phase 3 randomized trial comparing sac-TMT with chemotherapy drugs selected by the investigator. Participants are assigned to one of two groups one receives sacituzumab tirumotecan at a dose of 4 mgkg every two weeks by intravenous infusion until the disease worsens or side effects become unacceptable. The other group receives one of three chemotherapy drugspaclitaxel, docetaxel, or vinflunineby intravenous infusion every three weeks, also until disease progression or unacceptable toxicity. Rescue medications may be given as needed to manage side effects according to approved guidelines. During the study, participants undergo assessments of overall survival up to about 40 months, along with other measures such as progression-free survival, response rates, duration of response, and quality of life evaluations using questionnaires. Safety is monitored by recording adverse events and treatment discontinuations. The total study participation may last several years, with regular evaluations to understand the effects and tolerability of the treatments.

A Clinical Trial of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) to Treat Urothelial Cancer (MK-2870-031)