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Moesin deficiency was initially described in 7 male participants aged 4 to 69 years and is characterized by lymphopenia of the 3 lineages and moderate neutropenia. Genetically, 6 out of 7 participants had the same missense mutation in the moesin gene located on the X chromosome. The 7th patient has a mutation leading to the premature introduction of a STOP codon into the protein.Clinically the 7 participants with X-linked moesin-associated immunodeficiency all presented with recurrent bacterial infections of the respiratory, gastrointestinal or urinary tracts, and some had severe varicella.Therapeutically, in the absence of a molecular diagnosis and due to his SCID-like phenotype, one patient was treated with geno-identical hematopoietic stem cell transplantation . The remaining are untreated or treated with immunoglobulin substitution and/or prophylactic antibiotics. Since this study, the moesin gene has been integrated into DNA chips used for the molecular diagnosis of immune deficiencies in several countries. Physicians in Canada, the United States, Japan, South Africa and Europe have contacted us with a total of 16 known participants to date. Because of their very low severe, uncontrolled CMV infection and the absence of treatment recommendations, two 2 American participants were treated with allogeneic transplantation with severe post-transplant complications (1), and one of the participants died as a result of the transplant. Management of XMAID participants therefore varies widely from country to country, depending on age at diagnosis and clinical picture. It ranges from no treatment treatment (associated with recurrent infections and skin manifestations), IgIv substitution and/or antibiotic prophylaxis antibiotic prophylaxis, with low toxicity and apparent efficacy, and allogeneic transplantation, with all the risks risks involved (graft-related toxicity, graft versus host, disease, rejection, risk of infection). The Investigators therefore feel it is important to review the diagnosis, clinical presentation and management of X-MAID participants. The study the investigator propose will enable to understand the presentation of X-MAID participants, establish guidelines and provide the best treatment for each patient according to his or her clinical picture
The aim of this study is to assess the safety and efficacy of autologous transplantation of hematopoietic stem cells (CD34+ cells) from mobilized peripheral blood (mPB) of ADA-deficient SCID infants and children following human ADA gene transfer by the EFS-ADA lentiviral vector. The level of gene transfer in blood cells and immune function will be measured as endpoints.
Prospective, open-label, single-arm, multicentre Phase 3 study to evaluate the pharmacokinetics, efficacy, tolerability, and safety of subcutaneous human immunoglobulin (Newnorm) in patients with primary immunodeficiency diseases
This research is being done to learn if a new type of haploidentical transplantation using TCR alpha beta and CD19 depleted stem cell graft from the donor is safe and effective to treat the patient's underlying condition. This study will use stem cells obtained via peripheral blood or bone marrow from parent or other half-matched family member donor. These will be processed through a special device called CliniMACS, which is considered investigational.
Phase II prospective trial to assess the rates of donor engraftment using reduced intensity conditioning (RIC) hematopoietic stem cell transplant (HSCT) and post-transplant cyclophosphamide (PTCy) for patients with primary immune deficiencies (PID), immune dysregulatory syndromes (IDS), inherited bone marrow failure syndromes (IBMFS), short telomere syndromes, Fanconi anemia, and non-Fanconi DNA double-strand break (DNA-dsb) repair disorder.
Background: The immune system helps the body fight infections. Primary immunodeficiency disorders (PIDs) are diseases that make it easier for people to get sick. Many PIDs are inherited. This means parents can pass them on to their children. Knowing what causes a person s PID is important to decide what treatment to give them. Objective: To test samples from people with a PID or people related to someone with a PID to find out what causes PIDs. Eligibility: People ages 99 or younger who have a PID or have a relative with a PID Design: Participants will be screened with a medical history over the phone. They may need to give permission for researchers talk to their doctors about their health. Their relatives may be contacted to see if they want to join the study. Participants will give samples. These could be: Blood: Participants blood will be taken from a vein in an arm, or with a prick on the finger or heel for children. Saliva, urine, or stool: Participants will provide each sample in a special cup. Nose or cheek swab: Participants will rub the skin inside their nose or cheek using a cotton swab. Cord blood: If participants have a baby during the study, blood will be collected from the baby s umbilical cord after it is born. Samples from medical procedures: If, during the study, the participants have a medical procedure that collects samples, the samples may be used for the study.
Background: Primary immunodeficiency disorders, or PIDs, are diseases that weaken the immune system. This makes it easier for a person to get sick. Some PIDs are mild and may not be diagnosed until later in life. Other kinds are severe and can be identified shortly after birth. Researchers want to learn more about PIDs by comparing data from relatives and healthy volunteers to people with a PID. Objective: To learn more about PIDs, including their genetic causes. Eligibility: People ages 0-90 with a PID or their healthy biological relatives the same ages Healthy volunteers ages 18-75 Design: Participants will be screened with a medical history, physical exam, and HIV blood test. They may have a pregnancy test. Participants may repeat the screening tests. Blood taken at screening will be used for genetic tests and research tests. Participants will be told test results that affect their health. Some blood will be stored for future research. Adult participants with a PID may have a small piece of skin removed. The area will be numbed. A small tool will take a piece of skin about the size of a pencil eraser. Researchers may collect fluid or tissue samples from PID participants regular medical care. They will use them for research tests. Participants with a PID will have 3 follow-up visits over 10 years (for infants, 2 years). Visits will include a physical exam, medical history, and blood draw. Participants with a PID and their relatives will be called once a year for 10 years. They will talk about how they are feeling and if they have developed any new symptoms or illnesses. ...
This study aims to understand the causes and progression of Common Variable Immunodeficiency (CVID) and related inborn errors of immunity (IEI). These are conditions where the immune system does not function properly, leading to frequent infections and other complications such as gastrointestinal inflammation, lung and liver disease, autoimmune conditions, and an increased risk of certain cancers. By studying patients with CVI and related immune disorders, we hope to develop better ways to diagnose, treat, and prevent complications associated with these conditions. Patients diagnosed with CVID or related immune disorders must be referred by their physician and medical records reviewed by the study team to confirm eligibility to participate in this study. Once enrolled, participants will undergo various tests, including blood draws, physical exams, and imaging studies like CT scans to track changes over time. We may collect samples such as blood, urine, stool, or saliva for research purposes. If a surgical procedure or biopsy is performed because it is medically necessary, we may collect an additional sample for research testing. Family members of patients may be asked to provide blood samples for comparison. Some tests may be done remotely if participants or family members cannot travel to the study site. Who Can Participate * Patients diagnosed with CVI or related IEI, such as X-linked agammaglobulinemia, Blau Syndrome or Yao Syndrome. * Participants must be at least 2 years old. * Family members of patients may include parents, siblings, grandparents, children, aunts, uncles, and cousins. * Pregnant women already enrolled in the study will continue to participate, but new pregnant participants will not be enrolled. Potential Risks and Benefits * Risks: Blood draws may cause discomfort, bruising, or infection. Apheresis may cause dizziness, nausea, or muscle cramps; this procedure is to collect specific cells in the blood and is infrequently done on this protocol. Extra biopsies during clinically indicated procedures may increase the risk of complications; they will only be collected after the medically necessary biopsies are taken and if it is safe to collect any extra biopsies. * Benefits: Participants may not receive direct medical benefits, but the study will contribute to a better understanding of CVID and related conditions, potentially leading to improved treatments.
This is an open-label, multicenter, phase 4 study in IG treatment-naïve participants with PID, conducted in the United States (US), to assess the PK, safety, and tolerability of IgPro20. The primary objective of this study is to characterize the PK of IgPro20 and to assess the safety and tolerability of IgPro20 in IG treatment-naïve participants with PID who are aged greater than or equal to (\>=) 18 years.
Researchers are looking for new medicines to prevent HIV-1 (Human Immunodeficiency Virus Type 1) infection. The goals of this study are to learn: * If taking MK-8527 once a month works to prevent HIV-1 infection as well as or better than a standard (usual) pre-exposure prophylaxis (PrEP) taken once a day * About the safety of MK-8527 and if people tolerate it