Denys-Drash syndrome is a rare genetic disorder of childhood characterized by nephrotic syndrome, nephroblastomas, and genital developmental abnormalities. These children present with rapidly progressive renal failure, leading to kidney transplantation at a median age of 3.6 years. In a study of the French cohort of patients with Denys-Drash syndrome, a high risk of lymphoproliferative syndrome was observed (20%). This frequency is significantly higher than in the general transplant population (4%). The aim of the study is to evaluate the risk of post-transplant lymphoproliferative disorder following kidney transplantation in patients with Denys-Drash syndrome compared to patients with kidney transplant patients without Denys-Drash syndrome.
Denys-Drash syndrome is a rare genetic disorder of childhood characterized by nephrotic syndrome, nephroblastomas, and genital developmental abnormalities. These children present with rapidly progressive renal failure, leading to kidney transplantation at a median age of 3.6 years. In a study of the French cohort of patients with Denys-Drash syndrome, a high risk of lymphoproliferative syndrome was observed (20%). This frequency is significantly higher than in the general transplant population (4%). The aim of the study is to evaluate the risk of post-transplant lymphoproliferative disorder following kidney transplantation in patients with Denys-Drash syndrome compared to patients with kidney transplant patients without Denys-Drash syndrome. The study hypothesizes that there is an increased risk of lymphoproliferative disorder in children with Denys-Drash syndrome. If this hypothesis is confirmed, it would allow for the development of active treatment methods to combat post-transplant lymphoproliferative disorder in this population.
Study Type
OBSERVATIONAL
Enrollment
108
Collection of data from the patient's medical file. The data will be collected until 2024.
Hôpital Femme Mère Enfant, Hospices Civils de Lyon
Bron, France
CHU de Lille
Lille, France
CHU Montpellier
Montpellier, France
CHU de Nancy - Hôpitaux de Brabois
Nancy, France
Hôpital enfants et adolescents, CHU Nantes
Nantes, France
Hôpital Necker-Enfants Malades
Paris, France
Hôpital Robert Debré
Paris, France
Occurrence of lymphoproliferative disorder
Occurrence of lymphoproliferative disorder, confirmed by anatomopathological analyses of lymph node biopsies or of another affected site.
Time frame: Up to 24 years
Description of risk factors of post-transplant lymphoproliferative disorder following kidney transplantation
Investigate risk factors for post-transplant lymphoproliferative disorder following kidney transplantation in patients with Denys Drash syndrome. Description of the following factors: increase or secondary positivity of Epstein-Barr virus PCR, donor and recipient Epstein-Barr virus serology before transplantation, patient age at the time of transplantation.
Time frame: Up to 24 years
Comparison of the time to onset of post-transplant lymphoproliferative disorder following kidney transplantation
Time to onset of post-transplant lymphoproliferative disorder following kidney transplantation in patients with Denys-Drash syndrome compared to patients without this syndrome.
Time frame: Up to 24 years
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.