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ATG Individualized Dosing Model in URD-PBSCT.

NCT06572462 · Status: RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2024-12-03

No results posted yet for this study

Summary

Anti-thymocyte globulin (ATG) is widely used in allogeneic hematopoietic stem cell transplantation to prevent severe graft-versus-host disease (GVHD) and graft failure. However, overexposure to ATG may increase cytomegalovirus (CMV), Epstein-Barr virus (EBV) reactivation, non-relapse mortality, and disease recurrence. A targeted dosing strategy was established based on ATG concentration monitoring and conducted a phase 2 trial to evaluate the safety and efficacy of the dosing strategy in adult unmanipulated haplo-PBSCT, a encouraging result was attained. In this trial, The ATG-targeted dosing strategy was extended to adult unrelated donor allogeneic hematopoietic stem cell transplantation, ATG was administered for 4 days (-5 days to -2 days) during conditioning. The ATG doses on-3 days and- 2days were adjusted by our dosing strategy to achieve the optimal ATG exposure. The primary endpoint was CMV reactivation on +180 days.

Conditions

  • Cytomegalovirus Infections
  • Infection Reactivation
  • Stem Cell Transplant Complications

Interventions

DRUG

individualized ATG dosing strategy

Investigators quantified active ATG exposure in 106 haploidentical peripheral blood stem cell transplantation (haplo-PBSCT) recipients, who received a conventional fixed dose of 10 mg/kg ATG during conditioning, the optimal concentration range of active ATG-AUC was determined through the application of machine learning methods, was found to be 100-148.5 × 10\^3 UE·d/L. This concentration range was associated with a reduction in CMV/EBV reactivation, without an increase in acute GVHD or malignant disease relapse. Mathematical function was then exploited to determine the total targeted ATG dose on -3days to -2days based on concentrations of active ATG on -5daysto -4days. Based on this function, investigators established a dosing strategy that aimed to maintain the active ATG-AUC within the optimal range.

Sponsors & Collaborators

  • Chinese PLA General Hospital

    lead OTHER

Principal Investigators

  • diahong Liu, MD · First Medical Center of Chinese PLA General Hospital

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
14 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-12-31
Primary Completion
2024-12-30
Completion
2025-06-30

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06572462 on ClinicalTrials.gov