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Romiplostim N01 for Chemotherapy-Induced Thrombocytopenia in Pediatric Cancer Patients
Sponsor: Cancer Institute and Hospital, Chinese Academy of Medical Sciences
Summary
The goal of this clinical trial is to evaluate the efficacy and safety of romiplostim N01 in treating chemotherapy-induced thrombocytopenia (CIT) in children and adolescents/young adults (CAYA; aged 6-24 years) with hematologic malignancies or solid tumors. The main questions it aims to answer are: * What proportion of participants achieve platelet count recovery (≥100×10⁹/L or an increase of ≥30×10⁹/L from baseline) within 3 weeks of romiplostim N01 treatment? * What is the safety profile of romiplostim N01 in this population, including the incidence and severity of adverse events (especially bleeding and thrombosis)? This is a single-arm study (no comparison group). Researchers will assess the outcomes against predefined efficacy thresholds and historical data (e.g., a 60.7% response rate reported for another TPO-RA, hetrombopag). Participants will: * Receive weekly subcutaneous injections of romiplostim N01 (starting dose: 2 µg/kg). * Have their romiplostim dose adjusted weekly based on platelet counts (increase by 1-2 µg/kg if platelets \<99×10⁹/L, maximum dose 10 µg/kg, stop when target recovery is met). * Undergo frequent monitoring, including blood tests (especially platelet counts), vital signs, physical exams, and assessment for adverse events and bleeding throughout the treatment and follow-up period.
Official title: A Prospective, Multicenter Study on the Efficacy and Safety of Romiplostim N01 for Chemotherapy-Induced Thrombocytopenia (CIT) in Children, Adolescents, and Young Adults (CAYA) With Hematological and Solid Tumors
Key Details
Gender
All
Age Range
6 Years - 24 Years
Study Type
INTERVENTIONAL
Enrollment
50
Start Date
2025-07-01
Completion Date
2026-09-01
Last Updated
2025-06-29
Healthy Volunteers
No
Interventions
Romiplostim N01
Participants receive weekly subcutaneous injections of romiplostim N01 (250 μg/vial; Qilu Pharmaceutical) starting at 2 μg/kg. Doses are adjusted weekly based on platelet counts: increased by 2 μg/kg if platelets are \<50 × 10⁹/L, by 1 μg/kg if 50-99 × 10⁹/L, up to a maximum of 10 μg/kg. Treatment continues for up to 2 weeks but stops early if platelets reach ≥100 × 10⁹/L or increase by ≥30 × 10⁹/L from baseline.
Locations (1)
Cancer Hospital, Chinese Academy of Medical Sciences
Beijing, China