9 Clinical Trials for Various Conditions
This randomized clinical trial is studying the side effects of collection of bone marrow from donors treated with or without filgrastim. Giving colony-stimulating factors, such as filgrastim (G-CSF), to donors helps the stem cells move from the bone marrow to the blood so they can be collected and stored.
This phase 2 trial studies how well cluster of differentiation 8 (CD8)+ memory T-cells work as a consolidative therapy following a donor non-myeloablative hematopoietic cell transplant in treating patients with leukemia or lymphoma. Giving total lymphoid irradiation and anti-thymocyte globulin before a donor hematopoietic cell transplant helps stop the growth of cells in the bone marrow, including normal blood-forming cells (stem cells) and cancer cells. When the healthy stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells (called graft-versus-host disease). Giving cyclosporine and mycophenolate mofetil after the transplant may stop this from happening. Once the donated stem cells begin working, the patient's immune system may see the remaining cancer cells as not belonging in the patient's body and destroy them. Giving an infusion of the donor's white blood cells, such as CD8+ memory T-cells, may boost this effect and may be an effective treatment to kill any cancer cells that may be left in the body (consolidative therapy).
The purpose of the study is to: * Establish and evaluate a system for collection of filgrastim-mobilized peripheral blood stem cells from National Marrow Donor Program donors (NMDP) donors * Assess the safety among NMDP donors of filgrastim administration and PBSC leukapheresis * Assess the safety and efficacy of filgrastim-mobilized PBSC in unrelated donor hematopoietic stem cell transplant recipients * Determine the acceptability of stem cell donation by filgrastim stimulated apheresis in normal donors
Background: * Gardasil , a recently approved vaccine for the sexually transmitted human papillomavirus (HPV), provides immunity to four types of HPV that are associated with genital warts and cervical, vaginal, and vulvar precancer and cancer. The vaccine has been shown to be highly effective in preventing infection with these HPV types and was approved for use by the Food and Drug Administration. * More research is needed about the vaccine s ability to induce immunity in individuals with suppressed immune systems, such as those who have had other kinds of cancer treatment such as stem cell transplant. Genital warts, precancer, and cancer have been reported as a late complication after stem cell transplant. Researchers are interested in determining whether the HPV vaccine is safe to give and able to induce immunity in female stem cell transplant recipients, their female donors, and healthy female volunteers. Objectives: - To assess the safety and immune response of the HPV vaccine in female recipients of stem cell transplants who are either off or on stable doses of immunosuppression. Eligibility: * Females between 18 and 50 years of age who have had allogenic stem cell transplants. * Healthy female volunteers, including stem cell donors, are also eligible for this study. Design: * Participants will be screened with a physical examination, blood and urine tests, and saliva samples, and will be asked to complete a sexual quality of life questionnaire. * Sexually active participants will also have a routine gynecologic evaluation. * Participants will receive three HPV vaccinations according to the standard vaccination schedule (with the second and third following 2 and 6 months after the first). Participants will record their daily temperature and any reactions to the vaccine on a vaccine report card for 1 week after each vaccination. * Participants will have clinic visits for further testing 2, 6, 7, and 12 months after receiving the first HPV vaccine.
Peripheral blood stem cells (PBSCs) collected following stimulation with filgrastim are commonly used for autologous hematopoietic transplants. PBSCs are also now being used for some syngeneic and allogeneic hematopoietic transplants involving HLA-matched sibling donors. However, many issues remain unanswered about the use of PBSCs for allogeneic transplants and the effects of filgrastim on healthy individuals. The purpose of this study is to determine the effectiveness of filgrastim stimulated PBSCs in hematopoietic cell transplants involving unrelated donors and to determine the effects of this donation process on unrelated stem cell donors.
This study will examine the effects of granulocyte colony-stimulating factor (G-CSF) on bone marrow stem cells in healthy volunteers with sickle cell trait and determine if cells collected for transplantation from donors with sickle cell trait require special handling. Stem cells, which the bone marrow produces, are responsible for making all the different kinds of blood cells. They are the cells used in bone marrow, or stem cell, transplantation. The drug G-CSF, which is a naturally occurring hormone, causes stem cells to mobilize-that is, to be released from the bone marrow and enter the blood stream. This drug is given to stem cell donors to increase the amount of cells that can be collected. Stem cell donors for patients with sickle cell disease are often healthy siblings of the patient who have a matching bone marrow type. Some siblings carry the sickle cell trait, however, and, even though they do not have sickle cell disease and their blood and bone marrow are normal, it is not known how their cells will react to G-CSF stimulation. Nor is it known if their stem cells require special methods of removal, processing or storing. Healthy volunteers 18 years or older with sickle cell trait who have no history of sickle cell disease and no known medical problems may be eligible for this study. Participants will have a medical history and physical examination, including blood tests and urinalysis. They will receive injections of G-CSF under the skin once a day for 5 days. On the fifth day, stem cells will be collected through leukapheresis. In this procedure, whole blood is drawn from an arm vein, similar to donating whole blood. The blood then circulates through a cell separator machine, the stem cells are removed, and the rest of the blood is transfused back to the donor through a vein in the other arm. The information gained from this study will be used to ensure the safety of stem cell donors with sickle cell trait and to better prepare stem cells for transplantation in sickle cell patients.
Background: * Bone marrow stem cells, which are found in the bone marrow and blood stream, can be collected and transplanted to treat a variety of types of cancer in a process known as hematopoietic stem cell transplantation (HSCT). When stem cells are taken from one person, most commonly a sibling or a family member, and then given to another person, this is referred to as allogeneic HSCT. Allogeneic HSCT has proven to be an especially effective treatment for patients with some types of cancers of the blood (leukemia) and certain solid tumors. The transplanted stem cells travel to the patient's bone marrow and begin producing normal blood cells, and also attack patients cancer cells. * Because allogenic HSCT does not always prevent the cancer from returning, researchers are interested in determining whether another type of immune cell taken from the stem cell donors white blood cells, called a "natural killer" (NK) cell, can be given in addition to the HSCT to help fight the tumor. In the laboratory, NK cells have been shown to kill tumor cells, but it is not yet know if this will occur when given to patients after HSCT. Objectives: * To determine the safety, effectiveness, and immune system response of giving NK white blood cells to individuals who have received allogeneic HSCT. * To identify possible side effects from the treatment. Eligibility: * Donors: Stem cell donors whose blood matches one of the recipients on six out of six human leukocyte antigen (HLA) (blood immune marker) types. The donor may not be the identical twin of a recipient. * Recipients: Individuals between 4 and 35 years of age who have been diagnosed with pediatric solid tumors that have not responded to standard treatment, or individuals between 4 and 18 years of age who have been diagnosed with leukemia that has not responded to standard treatment. * Other eligibility requirements which include a physical exam and blood laboratory evaluation are included to make sure it is safe for both the donor to donate and the recipient to undergo the transplant procedure. Design: * Donors and recipients will be screened with a full medical history and physical examination, and will provide blood and urine samples; recipients will have tumor imaging studies and other tests as required by the researchers. * Donors: * Participants will receive filgrastim injections (to stimulate the bone marrow) for 1 week to make stem cells travel from bone marrow to blood. * Participants will provide stem cells and NK cells through apheresis. * Recipients: * Participants will have three cycles of chemotherapy to treat the underlying cancer and weaken the immune system so that it will accept the donor cells. * Participants will then receive preparative chemotherapy for the transplant and two days after the last dose of chemotherapy, participants will have allogenic HSCT using the donated stem cells. * Participants will receive an infusion of NK cells on days 7 and 35 after the HSCT. - Participants will remain in the hospital for monitoring after the HSCT and NK cell treatments, and will be followed closely as outpatients for the first 6 months after the transplant and then less frequently for at least 5 years.
The purpose of this protocol is to characterize the performance of CaridianBCT's Spectra Optia Apheresis System, when used to collect mononuclear cells (MNCs) and cluster of differentiation 34 (CD34) positive cells from healthy nonmobilized blood donors and healthy G-CSF (granulocyte colony stimulating factor) mobilized blood donors, respectively.
The current study seeks to understand factors that influence college students' likelihood of participating the National Marrow Donor Program (NMDP)/Be the Match for bone marrow and stem cell donations. The secondary aim is to compare emotional and rational approaches to encouraging participation in the registry and how these approaches may impact intentions to participate in the NMDP.