Active clinical trials for "Primary Immunodeficiency Diseases"

With the emergence of SARS-CoV-2 and the COVID-19 pandemic, there is an urgent need to understand the impact of infection on immunodeficient individuals. Whilst co-morbidities (such as diabetes, cancer, arterial hypertension, heart disease...) have been documented in people infected with SARS-CoV-2, there is currently no information on the consequences and outcomes for individuals with primary immunodeficiencies (PID). Following the 1st phase of the survey (launched by Isabelle Meyts (ESID), Nizar Mahlaoui (CEREDIH & IPOPI) and Kate Sullivan with Stuart Tangye (IUIS), that gave an idea of the number of affected PID patients and the impact of SARS-CoV-2 and directly focusing on obtaining this top level of information), we are launching the 2nd phase: "COPID19". COPID19 survey is a secured online GDPR compliant platform based in Paris (Imagine Institute). It has been approved by the Paris-Necker-Enfants malades IRB and Ethics Committee. However, this retrospective survey is designed for global distribution. Data can be entered by a health care professional (mostly clinicians) through a personal login and password. Each documenting person will have access to his/her own patients' data. COPID19 require a greater level of information than the 1st phase. The eCRF will be open to evolutions depending on progresses in our knowledge of this pandemic.

Currently about 90 cases of infection in children are reported every year in pediatric intensive care, a disease considered to be the main cause of hospitalization of children. 16% of invasive pneumococcal infections are linked to a genetic abnormality in immunity. Herpetic encephalitis has become a model of genetic infectious disease, with new mutations identified in the TLR3 pathway. Severe infections are no longer the result of chance and can be the way to reveal a primary immune deficiency. In this context, the investigators propose to evaluate the incidence of hereditary immune deficiency after a systematic immunological screening in children admitted for a severe infection in pediatric intensive care unit (ICU).

Primary immunodeficiencies (PID) represent more than 150 diseases affecting the immune system. More than 50% of PIDs are due to a lack or an insufficiency in antibody production. Some of these immunodeficiencies as well as some secondary immune deficiency with deficient antibody production (especially in hematology and oncology) are responsible for repeated and/or severe infections, requiring long-term replacement therapy with intravenous polyclonal immunoglobulin. Intravenous replacement therapy is administered every 21 or 28 days in hospital. Subcutaneous administration (weekly or bi-weekly) can be initiated for patients who cannot tolerate intravenous infusions or who have difficult venous access. However, some patients experience a decrease in quality of life with these more frequent administration at home. A new treatment is available in France since 2017, which is a subcutaneous infusion of human immunoglobulin facilitated by recombinant human hyaluronidase (IGHy), administered every 3 to 4 weeks in a single abdominal site, at home. No direct data are available in adults to evaluate tolerance and satisfaction with this treatment, but we know it is a preferred option in children and adolescents.

The immune system is an intricate system comprised of specialized cells, proteins, tissues and organs. Proper functioning is critical to the body's ability to defend itself against harmful pathogens. Immunological disorders and deficiencies are defects in the immune system that lead to abnormal immune responses. Abnormal immune responses could be derived from immune deficiencies, dysregulations or hypersensitivities. The overall goal of this research study is to identify the mechanisms of primary immune deficiencies and immune disorders at the genetic, cellular and molecular level, using novel analytic techniques to be performed on immune cells derived from blood samples. The knowledge gained from the aims of this study could lead to better diagnostics and identify novel targets for therapeutic interventions.

This study is a prospective cohort study of children diagnosed with primary immunodeficiency disease (PID). The aim is to investigate the clinical characteristics and prognosis of PID in Chinese children.

CORIA is an observational cohort study of immunosuppressed populations who test positive for COVID-19. This includes people living with HIV, cancer, acquired immunodeficiency associated with other immunosuppressive therapy, primary immunodeficiency and recipients of a solid organ transplant. Participants will have routine clinical data collected with optional baseline collection and storage of a blood sample for storage . The study will be conducted in up to 30 sites within Australia.

The investigators wish to characterize alterations in the architecture and function of immune cells in patients with a primary immunodeficiency that also develop inflammatory bowel disease. In addition, The investigators' goal is to characterize the microbiome of these patients, in order to determine whether specific microbial alterations are related to inflammation.