Phase III Trial of Immune Therapy With or Without Live Biotherapy MO-03 for Advanced Clear Cell Kidney Cancer

What this Trial Is About

Researchers are evaluating the addition of a live biotherapy called MO-03 to standard immunotherapy treatments in patients with advanced or metastatic clear cell renal cell carcinoma, a type of kidney cancer that has spread beyond its original site. This phase III trial compares the effects of standard immunotherapy alone versus standard immunotherapy combined with MO-03, which contains beneficial bacteria that may improve gut health and potentially enhance immunotherapy effectiveness. Participants are randomly assigned to one of two groups one group receives MO-03 orally twice daily along with standard immunotherapy regimens tailored by risk level, and the other group receives a placebo along with the same immunotherapy regimens. The immunotherapy regimens include various drugs such as ipilimumab, nivolumab, axitinib, pembrolizumab, cabozantinib, and lenvatinib, administered intravenously or orally over cycles lasting 42 days, for up to 3 years unless disease progression or unacceptable side effects occur. Throughout the study, participants undergo regular imaging scans like CT or MRI and blood tests to monitor their health and response to treatment. Those with suspected bone or brain metastases may have additional scans. After completing treatment, participants are followed every 6 months for 2 years, then annually for up to 5 years to assess progression-free survival, overall survival, treatment response, and safety. Biological samples are also collected for future research.

Adding Biotherapy or Placebo to Standard Treatment for Advanced Kidney Cancer