Safety and Clinical Performance of a Dialyzer With a Modified Polysulfone Membrane

Inclusion Criteria: * Minimum age of 18 years * Informed consent signed and dated by study patient and investigator / authorized physician * Ability to understand the nature and requirements of the study Exclusion Criteria: * Any condition which could interfere with the patient's ability to comply with the study. This decision is at the discretion of the treating physician and relates to the general good condition of the patient (e.g. absence of any acute condition, e.g. infection or mental problem which might give reason for concern etc.). * Ongoing participation in an interventional clinical study during the preceding 30 days * Previous participation in this study * Pregnancy (pregnancy test will be conducted with female patients aged less or aged 55 years) or lactation period