Solv Multi-Pass Hemodialysis System In-Center Clinical Study

Inclusion Criteria: * Subjects able and willing to give Informed Consent and interested to participate in the study * Subject aged 18 years or older * Subjects meets one of the following three conditions: * End stage renal disease (ESRD) patients who have been adequately treated with maintenance HD and deemed stable, according to the investigator, for at least three months * Incident end stage renal disease (ESRD) patients who have been prescribed HD therapy * Subjects on peritoneal dialysis who require conversion to hemodialysis, according to the investigator * Subjects who have adequate access, capable of providing a blood flow rate of at least 300 mL/min * Subject understands the nature of the procedures and the requirements of the study protocol * Subject is willing and able to comply with the protocol requirements and return to the treatment center for all required treatments and clinical evaluations Exclusion Criteria: * Subjects with baseline dry weight of ≤ 60 kg or ≥ 110 kg * Subjects with a documented history of non-compliance to scheduled hemodialysis sessions or clinic visits * Subjects who are pre-scheduled for a living kidney transplant within the next two months, who plan a change to peritoneal dialysis (PD) within the next two months or who require single needle dialysis therapy * Subjects with unstable electrolytes or acid base balance, in the opinion of the investigator * Subjects with any major surgery or major adverse cardiac event within 3 months of screening * Subjects with hemodynamic instability, defined as repeated hypo/hypertension, in the past 30 days from screening * Subjects with active or ongoing infection, in the opinion of the Investigator * Subjects with known Hepatitis B, C or HIV infection * Subject with documented coagulation disorders, active or bleeding risk or who is intolerant to heparin * Subjects who are currently participating or have previously participated in another interventional clinical trial in the past 4 weeks from screening * Subjects with any comorbidities possibly conflicting with the study purpose or procedures, in the opinion of the Investigator * Subjects who are pregnant or lactating or any patient with a childbearing potential who refuses to use medically acceptable means of contraception * Subjects with an active, malignant disease and whose life expectancy is \< 6 months, in the opinion of the investigator * Subjects with a hemoglobin \< 9 gm/dl in the past 30 days from screening * Subjects with significant intradialytic hypotension in 30 days from screening * Subjects with shock within 30 days from screening * Subjects with active seizures in the last 6 months from screening * Subjects with history of hemolytic anemia or thrombocytopenia * Subjects with vascular access dysfunction (switching ports (reverse lines or catheter replacement) in 30 days prior to screening, multiple tPA (tissue plasminogen activator) administrations) or patient who has had a thrombectomy procedure within 30 days prior to screening * Subjects with a documented history of congestive heart failure with symptoms consistent with NYHA Class III or IV, according to the investigator, or documented severe left ventricular dysfunction * Subjects with fluid overload due to intractable ascites secondary to liver cirrhosis * Subjects with active, life-threatening rheumatologic disease