study to investigate the safety of a drug called osocimab at low and high doses in adult patients with kidney failure requiring regular hemodialysis

Conditions: End-stage Renal Disease; Prevention of Thromboembolic Events; Hemodialysis; Hemodiafiltration

Summary: in this study researchers want to learn about the safety of drug osocimab at lower-dose and higher-doses in adult participants with kidney disease undergoing regular dialysis (a procedure that uses a machine to get rid of toxins and extra fluids in the blood). patients with kidney disease undergoing regular dialysis are at high risk for heart and blood vessels diseases. osocimab is a human monoclonal antibody under development for the prevention of events caused by blood clots like heart attack, stroke and death due to heart or blood vessels diseases. it works by binding to and blocking the activated form of clotting factor xi which increases the formation and stability of clots. researchers also want to find out how drug osocimab works in human body and how the body absorbs, distributes and excretes the drug. participants in this study will receive monthly injection of either osocimab at a lower-dose or higher-dose or placebo (a placebo looks like a treatment but does not have any medicine in it). both osocimab and placebo will be injected into the tissue under the skin of the belly. observation for each participant will last up to 23 months. blood samples will be collected from the participants to monitor the safety and measure the blood level of the study drug.


Eligibility criteria:
inclusion criteria: * participants must be at least 18 years of age * patients with end-stage renal disease on hemodialysis (including hemodiafiltration) for ≥3 months, receiving dialysis at least 9 hours a week and stable in the view of the investigator * body weight of at least 50 kg * male and/or female. contraceptive use by men or women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. exclusion criteria: * recent (\<6 months before screening) clinically significant bleeding * hemoglobin (hb) \< 9.0 g/dl at screening * platelet count \< 100 x 10\^9/l * aptt or pt \> uln (upper limit of normal) * hepatic disease associated with alt \> 3x uln, or total bilirubin \>2x uln with direct bilirubin \> 20% of the total * sustained uncontrolled hypertension (diastolic blood pressure ≥100 mmhg and/or systolic blood pressure ≥ 180 mmhg) * known intracranial neoplasm, arteriovenous malformation or aneurysm * known bleeding disorders e.g. von-willebrand disease or hemophilia a, b or c * recent (\<3 months before screening) thromboembolic event, e.g. acute coronary syndrome, stroke or vte (except dialysis access thrombosis) * recent (\<3 months before screening) major surgery or scheduled major surgery during study participation * scheduled living donor renal transplant during study participation * persistent heart failure as classified by the new york heart association (nyha) classification of 3 or higher * receiving antiplatelet therapy except daily asa ≤ 150 mg/day * receiving anticoagulation in therapeutic doses, other than standard anticoagulation during the hemodialysis procedure

Keywords: end-stage renal disease (esrd) hemodialysis