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Comparison of Different Dose of Post-transplantation Cyclophosphamide as Graft Versus Host Disease Prophylaxis

A Comparison Study of Reduced Dose of Post-transplantation Cyclophosphamide (PTCy 40mg/kg) Versus Standard (PTCY 50mg/kg): a Multi-center Study for Halo-identical Donor Transplantation

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06000982
Enrollment
138
Registered
2023-08-21
Start date
2023-10-01
Completion date
2026-04-01
Last updated
2023-08-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

GVHD

Keywords

graft versus host disease (GVHD), post-transplantation cyclophosphamide (PTCy), allogeneic stem cell transplantation, haplo-identical donor

Brief summary

Post-transplantation cyclophosphamide (PTCY) is considered as major graft versus host disease (GVHD) prophylaxis. In our previous study, the investigators demonstrated that the standard dose PTCY of 50mg/kg with tacrolimus and post-engrafted low-dose anti-thymoglobulin (ATG) achieved low incidence of acute GVHD. More recently, it has been shown that reduced dose of PTCY of 40mg/kg is considered with similar efficacy as GVHD prophylaxis, In this study, a multi-center randomized comparison is planned to evaluate the clinical outcome of GVHD prophylaxis of PTCy 40 versus 50.

Detailed description

Post-transplantation cyclophosphamide (PTCY) is considered as major graft versus host disease (GVHD) prophylaxis. In our previous study, the investigators demonstrated that the standard dose PTCY of 50mg/kg with tacrolimus and post-engrafted low-dose anti-thymoglobulin (ATG) achieved low incidence of acute GVHD. In the clinical setting, reduced dose of PTCY (40mg/kg) was used for patients over 60 or with high HCT-CI and the overall incidence of acute GVHD was similar to PTCY 50mg/kg but chronic GVHD was slightly increased. To confirmed our observation, in this study, a prospective multiple-center randomized comparison is planned to evaluate the clinical outcomes of reduced dose of PTCY (40mg/kg) versus 50mg/kg as GVHD prophylaxis.

Interventions

DRUGPTCY

PTCY as 40mg/kg or 50mg/kg at day +3 and +4 for GVHD prophylaxis

Sponsors

Shanghai Clinical Research Center
CollaboratorUNKNOWN
Shanghai Jiao Tong University School of Medicine
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* Patients with hematological malignancies * Patients undergo allogeneic stem cell transplantation from haplo-identical donors * Patents with informed consent provided

Exclusion criteria

* Patients with active infection ()bacteria, fungal or viral) * Patients with liver, renal and cardiac dysfunction not suitable for undergoing allogeneic stem cell transplantation.

Design outcomes

Primary

MeasureTime frameDescription
acute GVHD (grade II-IV)day 100clinical documentation of grade II-IV aGVHD

Secondary

MeasureTime frameDescription
Non-relapse mortality1 yearDeath without documentation of disease relapse or progression (bone marrow \>5% or with extra medullary diseases)
chronic GVHD1 yearincidence of patients with clinical documentation of chronic GVHD
overall survival1 yearEvent defined as death of any causes
Disease-free survival1 yearEvent defined as death of any causes and disease relapse or progression
Survival without relapse and moderate to severe GVHD1 yearRate of patients remain alive without disease relapse or progression (bone marrow blast \>5% or extra medullary diseases) and without documentation of grade III-IV acute GVHD and moderate to severe chronic GVHD

Countries

China

Contacts

Primary Contactchun Wang
wangchunsh@medmail.com.cn8613386259777

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026