View clinical trials related to Hemoglobinuria, Paroxysmal.
Filter by:The purpose of this study is to examine how abnormal blood flow in the small vessels (microvessels) of the heart, muscle and kidney in paroxysmal nocturnal hemoglobinuria (PNH) or sickle cell disease leads to poor functioning of the heart and kidney. To test this question, the investigators will perform imaging tests (contrast ultrasound perfusion imaging) to look at the flow and function of these microvessels and compare this information to heart and kidney function. To further look at this question, patients who have PNH will be studied before and after starting a new drug (Soliris) that decreases damage to blood cells. In patients with sickle cell disease, patients will be studied at baseline (not during a pain crisis) and also during a pain crisis if one develops.
Allogeneic transplant from a matched sibling for the treatment of a variety of illnesses including bone marrow failure states, leukemias, myelodysplastic or myeloproliferative syndromes, lymphoma, or myeloma using a nonmyeloablative preparative regimen.
The objective of this study was to assess the long-term safety and efficacy of eculizumab in hemolytic PNH patients who completed the 4-week screening and 12-week treatment period of the C07-001 study. In addition, pharmacokinetic and pharmacodynamic assessments of eculizumab were conducted.
Examine red and white blood cells of PNH patients with bone marrow failure syndromes.
A study to assess the safety and efficacy of eculizumab in Japanese patients with hemolytic PNH.
Paroxysmal nocturnal haemaoglobinuria (PNH) is a rare disease which results in breakdown of the red blood cells and bone marrow failure. It is associated with an increased risk of blood clots. Until recently, treatment has been with blood transfusions and in patients with a blood clot, blood thinners. A new treatment called eculizumab is now standard for patients who require regular blood transfusions. It works in the majority of patients by preventing the breakdown of red blood cells. This can eliminate the need for blood transfusion and reduce the risk of blood clots. It is not well understood why patients with PNH are at high risk of blood clots. The investigators plan to use specialised blood tests to assess the stickiness of the blood before starting eculizumab treatment and monthly after starting treatment. The investigators will compare these tests with standard tests of clotting.
The purpose of this study is to look at whether the combination of lower-dose chemotherapy with two chemotherapy (anti-cancer) drugs, called busulfan and melphalan, and an antibody medication called alemtuzumab (Campath®), can prevent rejection of donor blood stem cells so that those cells take hold and build a healthy new blood cell factory after transplant. The study will also look at the safety of the combination of drugs and of the transplant of peripheral blood stem cells from a healthy relative or an unrelated donor.
The purpose of this study is to compare the effects (good and bad) of the medication basiliximab in combination with cyclosporine (investigational therapy) for the prevention of a complication of bone marrow transplantation known as graft-versus-host disease (GVHD). GVHD is a complication in which the cells of the transplanted bone marrow react against organs and tissues.
To determine the time to and rate of hematologic engraftment following unrelated umbilical cord blood transplantation in adults with one or two cord blood units using total body irradiation and fludarabine as the transplant conditioning regimen and cyclosporine/MMF as graft-versus-host disease prophylaxis.
The primary objective of this study was to evaluate the pharmacokinetic (PK) and pharmacodynamic (PD) parameter estimates of eculizumab to confirm the dose regimens for pediatric and adolescent participants with PNH.