NCT05682131

South China Children Cancer Group - Relapsed-Acute Lymphoblastic Leukemia 2022 Protocol

• Status: Recruiting
• Phase: Phase 4
• Study type: Interventional
• Enrollment: 210 (estimated)
• Sponsor: Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University · Academic / Other
• Sex: All
• Age: 1 Year – 14 Years
• Healthy volunteers: Not accepted

Summary

In recent years, the prognosis of pediatric relapsed ALL patients has improved, but the 5-year OS of patients with first recurrence is still less than 50%. A number of in vitro studies have shown that arsenic trioxide (ATO) can selectively inhibit the growth and induce apoptosis in a variety of leukemia cell lines, suggesting that ATO as a synergist combined with other common chemotherapy drugs may provide a new target for the treatment of relapsed ALL. Realgar Indigo naturalis formula is a compound traditional Chinese medicine preparation developed in China. The main component of realgar is arsenic tetrasulfide (As4S4), which can produce similar pharmacological effects to ATO. Based on the R3 protocol, this study plans to perform a double-blind randomized controlled trial, and to randomly combine compound Huangdai tablets with compound Huangdai tablets in the treatment of intermediate and high risk ALL children, in order to improve the MRD negative rate after induction therapy in this group of children, which may provide a new method for the clinical treatment of relapsed ALL.

Detailed description

In recent years, the prognosis of pediatric relapsed ALL patients has improved, but the 5-year OS of patients with first recurrence is still less than 50%, and the prognosis of children with intermediate and high risk is even worse, so there is an urgent need to explore new and effective treatment methods. A number of in vitro studies have shown that arsenic trioxide (ATO), which is safe and effective in the treatment of APL, can selectively inhibit the growth and induce apoptosis in a variety of leukemia cell lines, suggesting that ATO as a synergist combined with other common chemotherapy drugs may provide a new target for the treatment of relapsed ALL. Realgar Indigo naturalis formula is a compound traditional Chinese medicine preparation developed in China. The main component of realgar is arsenic tetrasulfide (As4S4), which can produce similar pharmacological effects to ATO. The UK ALL R3 protocol is an advanced and mature clinical trial. The results showed that the MRD negative rate after induction chemotherapy and the 2-year DFS of traditional chemotherapy ±HSCT in children with intermediate and high risk did not reach 50%. Based on the R3 protocol, this study plans to perform a double-blind randomized controlled trial, and to randomly combine compound Huangdai tablets with compound Huangdai tablets in the treatment of intermediate and high risk ALL children, in order to improve the MRD negative rate after induction therapy in this group of children, which may provide a new method for the clinical treatment of relapsed ALL.

Conditions

• Arsenic Trioxide
• Childhood ALL

Interventions

Type	Name	Description
DRUG	Realgar Indigo naturalis formula	Realgar Indigo naturalis formula was used in the induction, consolidation and intensive treatment of patients in intermediate or high risk
COMBINATION_PRODUCT	Conventional chemotherapy	conventional chemotherapy

Timeline

• Start date: 2022-09-27
• Primary completion: 2027-09-27
• Completion: 2030-09-27
• First posted: 2023-01-12
• Last updated: 2023-01-12

Locations

1 site across 1 country: China