Gene Therapy for X-linked Chronic Granulomatous Disease (CGD) in Children
Chronic Granulomatous DiseaseThe aim of the study is to evaluate the side effects and risks after infusion of retroviral gene corrected autologous CD34+ cells of the peripheral blood of chemotherapy conditioned (busulphan) children with chronic granulomatous disease (CGD). Also gene corrected and functional active granulocytes in the peripheral blood and the engraftment in the bone marrow of the patients will be monitored an documented.
Treatment of Chronic Granulomatous Disease With Allogeneic Stem Cell Transplantation Versus Standard...
Chronic Granulomatous DiseaseThis study will compare the health and well being of children treated with a modified stem cell transplantation procedure for chronic granulomatous disease (CGD) with that of children receiving standard of care treatment. CGD is an inherited disorder of neutrophils-a type of infection-fighting white blood cell-that leaves patients vulnerable to life-threatening infections. Standard treatment with antibiotics, and sometimes surgery, is not always successful, and patients with persisting infections have a poor long-term prognosis. Transplantation of donated stem cells (cells produced by the bone marrow that mature into white and red blood cells and platelets) can improve immune function in patients with CGD and possibly cure the disease. However, this procedure carries a significant risk of death, because it requires complete suppression of the immune system with high-dose chemotherapy. In addition, lymphocytes-another type of infection-fighting white blood cell-from the donor may cause what is called graft versus host disease (GvHD), in which the donor cells 'see' patient's cells as foreign and mount an immune response to reject them. To try to reduce these risks, patients in this study will be given low-dose chemotherapy that is easier for the body to tolerate and involves a shorter period of complete immune suppression. Also, the donor's lymphocytes will be removed from the rest of the stem cells to be transplanted, reducing the risk of GvHD. Patients with CGD between 2 and 17 years of age who 1) are currently free of active infection, and 2) have a history of at least one life-threatening infection or a family member with CGD and a history of at least one life-threatening infection, and 3) a family member that is a suitable donor may be eligible for this study. Candidates will have a medical history, physical examination and blood tests, lung and heart function tests, x-rays or CT scans of the body, and dental and eye examinations. They will fill out questionnaires that measure emotional well being, quality of life, and intelligence (ability to learn and understand). Stem cells will be collected from both the patient and donor. To do this, the hormone G-CSF will be injected under the skin for several days to move stem cells from the bone marrow to the bloodstream. Then, the stem cells will be collected by apheresis. In this procedure the blood is drawn through a needle placed in one arm and pumped into a machine where the required cells are separated out and removed. Then, the rest of the blood is returned through a needle in the other arm. Several days before the transplant procedure, patients will start a 'conditioning regimen' of chemotherapy with cyclophosphamide, fludarabine and Campath 1H. When the conditioning therapy is completed, the donor's stem cells will be infused. To help prevent rejection of donor cells, cyclosporine will be given by mouth or by vein starting 1 month after the transplant procedure. The average hospital stay for stem cell transplantation is 21 days. After discharge, patients will return to the NIH clinic for follow-up clinic visits weekly or twice weekly for 2 to 3 months. These visits will include a symptom check, physical examination and blood tests. Subsequent clinic visits will be scheduled 1 to 3 times a year for at least 5 years.
Posaconazole to Treat Invasive Fungal Infections
Granulomatous DiseaseChronic2 moreThis study will evaluate the safety and effectiveness of posaconazole for treating invasive fungal infections. New therapies for these infections are needed for patients who do not respond, to or cannot tolerate, standard treatment. These patients include those with immune defects who have significant side effects from treatment with amphotericin or other antifungals. Patients 13 years of age or older who are on other primary NIH protocols with an invasive fungal infection 1) that does not respond to standard antifungal therapies; 2) for which there is no effective therapy; 3) who develop serious side effects from their current treatment; or 4) who have organ dysfunction that does not permit use of standard antifungal treatments may be eligible for this study. Candidates will be screened with a medical history, including a review of current and previous antifungal treatments, pregnancy test for women of childbearing potential, electrocardiogram (EKG), and detailed neurologic examination. Participants will take either 200 mg (1 teaspoonful) of liquid posaconazole by mouth four times a day or 400 mg (two teaspoonfuls) twice a day for a period of 28 days to 24 months. (The physician will determine the duration of treatment.) Patients will have monthly follow-up visits during the treatment period and 1 month after treatment is completed for the following procedures: Detailed neurologic exam every 3 months Blood tests every month EKG every month Imaging studies, including chest x-ray, computed tomography (CT), magnetic resonance imaging (MRI) radionuclide scanning or ultrasound, every month until the infection has been stable for three determinations. Thereafter, imaging studies will be done every 3 months as long as the infection remains stable or improves. On the last day of the study treatment period, participants will have a detailed neurologic exam and review of medications and medical complaints since their last visit.
Matched Unrelated or Non-Genotype Identical Related Donor Transplantation For Chronic Granulomatous...
Chronic Granulomatous DiseaseThis study is for patients with chronic granulomatous disease (CGD), which is a disorder of the immune system that puts them at risk for severe infections. CGD is caused by a genetic defect that stops or prevents the white blood cells from killing certain bacteria and fungi. This condition cannot presently be cured by standard treatment with drugs or surgery. Medicine including antibiotics, antifungals, and interferon gamma, may help some patients with CGD; however even with continuous treatment, most patients with CGD will have chronic and recurrent infections. Transfusion of white blood cells may help overcome infection, but white cell transfusions lead to allergic reactions and fever and the benefit of transfusion lasts only a matter of hours. Ultimately, chronic infections can damage or injure the body organs. Injury to the lung or liver can lead to lung or liver failure and death. Medicines used to treat infection can damage body organs too. Infections may become resistant to antibiotic or antifungal treatment, and infections not responding to treatment can be deadly. It is now known that under specific conditions and with special treatment, blood stem cells (the cells that make blood) can be transplanted from one person to another. Stem cell transplantation has been done for patients with CGD who have a healthy sibling and who share the same immune type (HLA type) as the patient. Stem cell transplantation allows healthy or normal white cells from the stem cell donor to grow or develop in the patient's bone marrow. These healthy white cells can fight infection and prevent future infections for a patient with CGD. Patients on this study will receive stem cells from a related or unrelated donor. The donor will be closely matched to the patient's immune type but the donor is not a sibling. The reason this treatment is investigational is that we do not know the likelihood of benefit that the patient will receive. It is possible that they will have great benefit, like some of the patients who have been transplanted from a brother or sister. It is possible that the side-effects of treatment may be too severe so that the transplant won't work. The purpose of this research study is to evaluate whether or not patients with CGD treated with a stem cell transplant from a non-matched and/or non-related donor can have a good outcome from the procedure with an acceptable number of side-effects.
Diagnostic Effectiveness of Virtual Bronchoscopy
Bronchogenic CarcinomaChronic Granulomatous Disease3 moreThis study will evaluate a new technique for examining the air passages of the lungs called "virtual bronchoscopy." It involves using computed tomography (CT) images of the chest to generate a 3-dimensional model of the walls of the trachea and bronchi (airway passages). This non-invasive method lets doctors see small masses and areas of narrowing in the passages without having to do surgery or pass a tube through them. Patients with diseases of the air passages who are enrolled in an NIH clinical trial may participate in this study, which requires having a CT scan. The patient lies on a table that slowly slides into a hole in a donut-shaped X-ray machine (the scanner). Patients may have to hold their breath several times during the procedure. Some patients may be given an injection of a contrast agent through a catheter (thin tube) placed in an arm vein to improve visibility of abnormalities. Patients may also be asked to breathe oxygen through nasal prongs to allow them to hold their breath longer. The procedure usually takes 15 to 20 minutes.
A Phase IV Study of Recombinant Human Gamma Interferon in Patients With Chronic Granulomatous Diseases...
Chronic Granulomatous DiseaseIn a recent double-blinded, placebo-controlled multi-center international study, subcutaneous injections of interferon-gamma administered three times weekly reduced the frequency of serious infections in patients with chronic granulomatous disease. Patients receiving interferon-gamma had fewer hospital stays, shorter in length, than the placebo group. Children less than 10 years of age benefitted most from treatment and had fewer side effects. Based on these data, the FDA licensed interferon-gamma for prophylaxis in CGD patients. We wish to monitor our patients who participated in the original study for possible long-term side effects. Any new patients referred to us who are either on interferon-gamma or considered to be candidates for interferon-gamma will be considered for this protocol. In addition, our patients who were originally accepted under Genentech's compassionate plea protocol will also be monitored under this new protocol. The patients will be evaluated every six months, with blood work and interim medical histories taken.
Generation of Powerful Biological Tools for Understanding the Pathophysiology of Chronic Granulomatous...
Chronic Granulomatous DiseaseChronic granulomatous disease (CGD) is a rare genetic disease of innate immune due to the malfunction of phagocytic cells unable to destroy pathogens during infection. The four genes implicated are CYBB, CYBA, NCFA and NCF2 respectively encoding Nox2, p22phox, p47phox and p67phox. Nox2 analogs have recently been discovered in cells other than phagocytes. So the question arises on physiopathological impact of the absence of theses proteins not only in phagocytes but also in other cells types such as fibroblasts or neurons. The principal objective is thus to study the impact of protein deficits Nox2 and p22phox, in the pathophysiology of neurons from inducible pluripotent bone marrow cells (iPSC). For this purpose, a collection was built of fibroblasts and keratinocytes from patients with different forms of CGD to get iPSC similar to embryonic marrow cells and differentiable into several cell types (neurons, phagocytes).
Pharmacokinetics of Posaconazole in Children With Chronic Granulomatous Disease (CGD)
Chronic Granulomatous DiseaseThe purpose of this study is to find a dose for a twice daily regimen for posaconazole (PSZ) as prophylactic treatment in children with CGD, based on the PSZ trough level.
Radiofrequency Ablation for Liver Abscesses From Chronic Granulomatous Disease
Chronic Granulomatous Diseases (CGD) and Liver LesionsBackground: - Abscesses are a pocket of infection in an organ or tissue. Patients with a disease called chronic granulomatous disease (CGD) often develop these abscesses. CGD is an inherited disorder that affects how white blood cells function. Liver abscesses in people with CGD often require surgery to remove them and treat the infection. However, some people with CGD cannot have full surgery because it would be too risky. Researchers want to try a procedure called radiofrequency ablation (RFA) to treat these liver abscesses. RFA can usually be done without a major operation. This study will see if RFA is a safe and effective treatment for liver abscesses in patients with CGD. Objectives: - To see if RFA is a safe and effective treatment for CGD-related liver abscesses. Eligibility: - Individuals between 18 and 75 years of age with CGD who have liver abscesses that cannot be treated with surgery. Design: Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected. Imaging studies will be performed on the liver. Participants will have RFA for the abscesses. RFA is an image-guided technique that heats and destroys specific tissue, such as tumor tissue. It will target any abscesses on the liver. After the procedure, participants will stay in the hospital for monitoring before being released. Participants will have regular follow-up visits for up to 1 year after treatment. Blood and urine samples will be collected. Additional imaging studies will be performed.
Lentiviral Gene Therapy for X-Linked Chronic Granulomatous Disease (X-CGD)
Granulomatous DiseaseChronic2 moreChronic Granulomatous Disease (CGD) is a rare inherited disorder in which patients suffer from severe infection and inflammation. The first indication of disease usually appears in early childhood. The basic defect found to be lie in specialised white blood cells called phagocytic cells, which are responsible for engulfing and destroying germs. In CGD, there is a defect in an enzyme (known as NADPH-oxidase) that is responsible for generating bleach like substances that are important for killing some important germs. In the form of the disease known as X-CGD (which accounts for two thirds of patients), there are defined mistakes in a gene called gp91-phox, which is a key part of the NADPH-oxidase. In many cases, patients can be protected from infection by constant intake of antibiotics. However, in others potential life-threatening infections break through. In some cases patients also develop serious inflammation requiring high doses of drugs such as steroids. CGD can be cured by bone marrow transplant, but the best results are available when there is matched donor available. Transplant from unmatched donor have a much worse outcome. Gene therapy of CGD can be performed by introducing a normal copy of human gp91-phox gene into the blood forming stem cells of patients' bone marrow by using a gene carrier (in this study called lentiviral vector). After treatment of the bone marrow cells in a specialised laboratory are given back to the patient and will grow into functional phagocytic cells.