Phase 2b and 3 Study of CSL300 Clazakizumab Given by IV to Adults With End Stage Kidney Disease on Dialysis to Find the Right Dose and Test Heart Health Benefits

What this Trial Is About

Researchers are conducting a combined Phase 2b and Phase 3 clinical trial to study CSL300 Clazakizumab in adults with end stage kidney disease ESKD who are undergoing maintenance dialysis. The study aims to find the right dose of CSL300 and then evaluate its effect on cardiovascular outcomes and safety in people with systemic inflammation and either atherosclerotic cardiovascular disease ASCVD or diabetes. This is a randomized, double-blind, placebo-controlled study involving multiple centers. Participants will receive intravenous IV administration of either CSL300 or a placebo. The Phase 2b part focuses on determining the appropriate dose of CSL300 compared to placebo over about 12 weeks, while the Phase 3 part examines CSL300s effect on cardiovascular events over approximately five years. The study includes different dosing groups in Phase 2b and a larger comparison of CSL300 versus placebo in Phase 3. During the study, participants will be monitored regularly with blood tests that measure inflammation markers such as high-sensitivity C-reactive protein hs-CRP, cardiovascular events, and safety outcomes. Researchers will track changes in various blood components and adverse events up to 32 weeks in Phase 2b and follow cardiovascular outcomes for up to five years in Phase 3. The total participation lasts through these periods with scheduled assessments to evaluate treatment effects and safety.

Combined Dose-Finding and CV Outcomes Study With CSL300 (Clazakizumab) in Adult Subjects With ESKD Undergoing Dialysis (POSIBIL6ESKD)