DuraLock-C Catheter Lock Solution

The total duration of the study treatment period will be 90 calendar days, from Visit 1 Pre-Instillation to the last study-related assessment. Two to 3 instillations (1 per lumen per visit) of DuraLock-C 4.0%, 30.0%, or 46.7% (equivalent to the catheter manufacturer's prescribed priming volume) will be instilled 1 to 3 days apart (with a HD schedule of 3 to 4 times per week); each instillation of CLS will remain in the CVC for approximately 24 to 72 hours ± 12 hours, based on their practice preferences. EOS will take place at the patient's next scheduled dialysis session.