NCT05324917

Population Pharmacokinetic-pharmacodynamic Study of Rituximab in Children With Blood Diseases

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 20 (estimated)
• Sponsor: The Affiliated Hospital of Qingdao University · Academic / Other
• Sex: All
• Age: 6 Months – 18 Years
• Healthy volunteers: Not accepted

Summary

To establish a population pharmacokinetic and pharmacodynamic model of rituximab in children with hemopathy. To optimize the administration of rituximab in the treatment of children based on pharmacokinetic model.

Detailed description

hemotherapy for children with lymphoma: rituximab (375mg/m2 BSA) was added intravenously from COPADM1 regimen. once every 3 weeks to 4 weeks, combined with corresponding chemotherapy, a total of 4 times. Rituximab (375mg/m2 BSA) was administered intravenously for lymphoproliferative diseases and Epstein-Barr(EB) virus-associated B lymphoproliferative diseases after hematopoietic stem cell transplantation. Once a week, a total of 4 times. Primary immunologic thrombocytopenic purpura(ITP) and autoimmune hemolytic anemia(AIAH) patients received rituximab (100mg/m2 BSA) intravenously once a week, a total of 4 times. The children were divided into group A and group B according to the disease type, and each group was randomly divided into two groups (group 1 and group 2) and assigned blood collection points. Burkitt's lymphoma diffuse large B-cell lymphoma follicular lymphoma and other mature B-lymphomas were in group A. Hematopoietic stem cell transplantation, EPstein-Barr virus associated lymphocyte proliferative disease, lymphocyte proliferative change, primary immunologic thrombocytopenic purpura(ITP) and autoimmune hemolytic anemia(AIAH) were in group B. Group 1: Children in the first group were collected 0, 12, 24, and 72 h after the first dose, 0h before and after the second dose, 0h before and after the third dose, 0h before and after the last dose, 48, and 96 h after the last dose. Venous blood was collected at 12 time points. Group 2: Children in the second group were collected 0, 12, 48, and 96 h after the first dose, 0h before and after the second dose, 0h before and after the third dose, 0h before and after the last dose, 24, and 72 h after the last dose. Venous blood was collected at 12 time points.

Conditions

• Rituximab
• Children
• Blood Disease

Interventions

Type	Name	Description
DRUG	Rituximab	Chemotherapy for children with lymphoma: rituximab (375mg/m2 BSA) was added intravenously from COPADM1 regimen. once every 3 weeks to 4 weeks, combined with corresponding chemotherapy, a total of 4 times.
DRUG	Rituximab (once a week)	Rituximab (375mg/m2 BSA) was administered intravenously for lymphoproliferative diseases and EB virus-associated B lymphoproliferative diseases after hematopoietic stem cell transplantation. Once a week, a total of 4 times. ITP and AIHA patients received rituximab (100mg/m2 BSA) intravenously once a week, a total of 4 times.

Timeline

• Start date: 2022-04-10
• Primary completion: 2023-02-01
• Completion: 2023-04-01
• First posted: 2022-04-13
• Last updated: 2022-04-13