View clinical trials related to Myeloproliferative Disorder.
Filter by:The aim of the research in this study is to make participants' transplant safer by reducing the risk of developing GVHD and GVHD-related complications by giving participants a dose of the drug tocilizumab in addition to the standard approach for GVHD prevention. Tocilizumab reduces the risk of inflammation by blocking the effect of Interleukin-6, a protein that exists in high levels in the blood when there is inflammation. Participants who receive stem cell transplants have high levels of this protein in their blood early after transplant. Therefore, the goal of this study is to reduce the risk of inflammation after transplant with the addition of Tocilizumab. This could decrease the risk of developing GVHD and GVHD-associated complications.
The purpose of this study is to study the effects of isavuconazole in preventing fungal infections in patients who have had a hematopoietic stem cell transplant (HCT).
Background: - Researchers are working to make stem cell transplant procedures safer and more effective. One complication of transplants is graft-versus-host disease (GVHD). This complication happens when certain white blood cells from the donor attack the recipient's own body. Researchers want to test a blood separator machine that may help remove more of the donor's white blood cells before transplant. They will study donors and recipients during stem cell transplant to see how well this process can prevent GVHD and other complications. Objectives: - To see if a new blood separator machine can improve outcomes of stem cell transplants. Eligibility: - Individuals between 10 and 75 years of age who are having a stem cell transplant for leukemia or other blood-related cancers. - Donors for the stem cell transplant. Design: - Recipients and donors will be screened with a physical exam and medical history. - Donors will have two blood collection procedures. The first will collect only white blood cells, and return the rest of the blood. After the first collection, participants will have filgrastim injections to help their stem cells enter their blood. Then, they will have a second blood collection for the stem cells. - Recipients will have radiation and chemotherapy to prepare for the stem cell transplant. They will then have the stem cell transplant with the donor cells that have been treated with the blood separator machine. - Recipients will be monitored closely after the procedure. They may receive some of their donor's white blood cells if needed to fight serious infections. - Recipients will have the regular standard of care after their transplant. Blood samples will be taken and any side effects will be monitored and treated.
New conditioning regimens are still needed to maximize efficacy and limit treatment-related deaths of allogeneic transplantation for advanced hematologic malignancies. Over the past several years, the investigators have evaluated several new conditioning regimens that incorporate fludarabine, a novel immunosuppressant that has limited toxicity and that has synergistic activity with alkylating agents. Recent data have suggested that fludarabine may be used in combination with standard doses of oral or IV busulfan, thus reducing the toxicity previously observed with cyclophosphamide/ busulfan regimens.
Myelodysplastic and myeloproliferative Disease represent conditions with increased risk for pulmonary hypertension. However, the exact prevalence of pulmonary hypertension in these conditions is not known. The effects of pulmonary hypertension on the clinical picture and the symptoms of patients in these conditions needs also further exploration. This exploratory study is designed to describe the prevalence of pulmonary hypertension in the population with such hematologic diseases, and the stages of pulmonary hypertension as well its effect on exercise capacity at time of diagnosis.
Aim of the study is to analyze the expression of genes and sequences encoding the human mammalian diaphanous (mDia) related formin proteins to test the hypothesis that defects in the mDia expression or function might drive the pathophysiology of myelodysplastic syndrome, acute myeloid leukemia and other myeloproliferative diseases.
Objectives: 1. To evaluate disease free survival after Campath 1H-based in vivo T-cell depletion and non-myelo-ablative ablative stem cell transplantation in patients with hematologic malignancies. 2. To evaluate the incidence and severity of acute and chronic GVHD after Campath 1H-based in vivo T-cell depletion, in patients with hematologic malignancies undergoing non-myelo-ablative stem cell transplantation. 3. To evaluate engraftment and chimerism after Campath 1H-based in vivo T-cell depletion and non-myelo-ablative ablative stem cell transplantation in patients with hematologic malignancies.
Gemcitabine and carboplatin are two standard chemotherapy drugs used to treat tumors of the urothelial tract. These drugs do not shrink tumors in all patients and when they do, it is generally for a limited amount of time. This has led scientists to look for different ways to treat cancer. New drugs have been developed to treat cancer that work differently than standard chemotherapy drugs. One new class of drugs are called 'angiogenesis-inhibitors'. These drugs attempt to decrease the blood supply to tumors. By doing so, this may limit the tumor's source of oxygen and nutrients and prevent the tumor from growing. Bevacizumab is an anti-angiogenic drug. In some other cancers such as colon cancer and lung cancer, combining bevacizumab with standard chemotherapy shrinks tumors in a greater proportion of patients and makes patients live longer than using standard chemotherapy alone. This has never been tested in urothelial cancer and we do not know if bevacizumab will have the same effects in this disease. The purpose of this study is to find out what effects, good and/or bad, the combination of gemcitabine, carboplatin, and bevacizumab has on you and your cancer.
Patients are being asked to participate in this study because treatment for their disease requires a stem cell transplant (SCT). Stem cells are the source of normal blood cells found in the bone marrow and lead to recovery of blood counts after bone marrow transplantation. With stem cell transplants, regardless of whether the donor is a full match to the patient or not, there is a risk of developing graft-versus-host disease (GVHD). GVHD is a serious and sometimes fatal side effect of SCT. GVHD occurs when the new donor stem cells (graft) recognizes that the body tissues of the patient (host) are different from those of the donor. When this happens, cells in the graft may attack the host organs. How much this happens and how severe the GVHD is depends on many things, including how different the donors cells are, the strength of the drugs given in preparation for the transplant, the quality of transplanted cells and the age of the person receiving the transplant. Typically, acute GVHD occurs in the first 100 days following transplant, while chronic GVHD occurs after day 100. Acute GVHD most often involves the skin, where it can cause anywhere from a mild rash to complete removal of skin; liver, where it can anywhere from a rise in liver function tests to liver failure; and the gut, where it can cause anywhere from mild diarrhea to profuse, life-threatening diarrhea. Most patients who develop GVHD experience a mild to moderate form, but some patients develop the severe, life-threatening form. Previous studies have shown that patients who receive SCT's can have a lower number of special T cells in their blood, called regulatory T cells, than people who have not received stem cell transplants. When regulatory T cells are low, there appears to be an increased rate of severe, acute GVHD. A drug known as IL-2 (Proleukin) has been shown to increase the number of regulatory T cells in patients following stem cell transplant, and in this study investigators plan to give low dose IL-2 after transplant. This study is called a phase II study because its major purpose is to find out whether using a low-dose of IL-2 will be effective in preventing acute GVHD. Other important purposes are to find out if this treatment helps the patient's immune system recover regulatory T cells faster after the transplant. This study will assess the safety and toxicity of low-dose IL-2 given to patients after transplantation and determine whether this drug is helpful in preventing GVHD.
Allogeneic stem cell transplantation may provide long-term remissions for some patients with hematological malignancies. However, allogeneic transplantation is associated with a significant risk of potentially life threatening complications due to the effects of chemotherapy and radiation on the body and the risks of serious infection. In addition, patients may develop a condition called Graft versus host disease that arises from an inflammatory reaction of the donor cells against the recipient's normal tissues. The risk of graft versus host disease is somewhat increased in patients who are receiving a transplant from an unrelated donor. One approach to reduce the toxicity of allogeneic transplantation is a strategy call nonmyeloablative or "mini" transplants. In this approach, patients receive a lower dose of chemotherapy in an effort to limit treatment related side effects. Patients undergoing this kind of transplant remain at risk for graft versus host disease particularly if they receive a transplant from an unrelated donor. The purpose of this research study is to examine the ability of a drug called CAMPATH-1H to reduce the risk of graft versus host disease and make transplantation safer. CAMPATH-1H binds to and eliminates cells in the system such as T cells that can cause graft versus host disease (GvHD). As a result, earlier studies have shown that patients who receive CAMPATH-1H with an allogeneic transplant have a lower risk of GvHD. In the present study, we will examine the impact of treatment with CAMPATH-1H as part of an allogeneic transplant on the development of GvHD and infection. In addition, we will study the effects of CAMPATH-1H on the immune system by testing blood samples in the laboratory.