Summary: This randomised controlled trial will determine the non-inferiority of stopping empiric antibiotics prior to absolute neutrophil count (ANC) recovery (Early Stopping) versus stopping antibiotics upon ANC recovery (Standard of Care/ Late Stopping) , in children with cancer and high-risk febrile neutropenia (FN).

Summary: This is a prospective cohort study of children with GSD1b to evaluate their outcome after using empagliflozin for neutrophil defects.

Summary: The aim of this study is to evaluate the efficacy of dexamethasone in hospitalized adults with COVID-19 pneumonia who do not require supplementary oxygen on admission, but have high risk of developing acute respiratory distress syndrome (ARDS).~This is a prospective, multicenter, phase 4, parallel-group, randomized and controlled trial that is open-label to investigators, participants and clinical...

Summary: Background:~Progressive multifocal leukoencephalopathy (PML) is a brain infection. It is caused by a virus. PML can happen in people with a weakened immune system. PML is associated with cognitive and visual impairment as well as motor and speech disturbances. There is no treatment for PML. Researchers want to see if a new drug can help.~Objective:~To see if the drug NT-I7 can help increase lympho...

Summary: The study is a nationwide, multicenter, open label, randomized controlled trial.~A target population of 220 children in treatment for cancer with neutropenic fever and a neutrophil count below 0.5 × 10⁹ cells/L with expected duration for more than 7 days will be recruited during the first 48 hours of antibiotic treatment (24 months inclusion period). They will be randomized 1:1 as follows:~Experim...

Summary: The purpose is to evaluate the safety of PEG-rhG-CSF in the prevention of neutropenia in children with tumor after chemotherapy, and then evaluate the effectiveness of PEG-rhG-CSF in preventing neutropenia in children with tumor after chemotherapy.

Summary: The COVID-19 epidemic (Coronavirus Disease 2019) currently raging in France is an emerging infectious disease linked to a virus of the genus coronavirus (SARS-CoV-2). Epidemiologically, acute myeloblastic leukemias (AML) are the most common of acute leukemias. The incidence of acute lymphoblastic leukemia (ALL) is 900 new cases in France in 2018, of which 57% in humans. The treatments administered...

Summary: There are rare reports regarding late neutropenua in very low birth weight preterm infants.~The investigators wish to characterize it among our population, and assess its consequenses and the postnatal menagement of the infants.

Summary: The aim is to investigate if RNA expression signature can discriminate bacterial from viral infection or non-infectious inflammation in children with cancer.~Earlier studies in immunocompetent children have shown promising results, but studies in immunocompromised children are lacking.~We aim to include 300 febrile episodes in children with cancer. The samples will be analysed by RNA sequencing. I...

Summary: Chemotherapy places patients at an increased risk of infection. A medication called granulocyte colony-stimulating factor is given as a daily injection in order to help decrease the risk of infection. The purpose of this study is to determine the best time to begin granulocyte colony-stimulating factor while maintaining the same clinical benefits. The current study aims to fill these research gaps...

Summary: In this study, the investigators test 2 dose levels of thiotepa (5 mg/kg and 10 mg/kg) added to the backbone of targeted reduced dose IV busulfan, fludarabine and rabbit anti-thymocyte globulin (rATG) to determine the minimum effective dose required for reliable engraftment for subjects undergoing hematopoietic stem cell transplantation for non-malignant disease.

Summary: This multisite prospective study seeks to determine if HLA-identical sibling donor transplantation using alemtuzumab, low dose total-body irradiation, and sirolimus (Sickle transplant Using a Nonmyeloablative approach, SUN) can decrease the toxicity of transplant while achieving a high cure rate for children with sickle cell disease (SCD).