NCT06468267

RIC With Thiotepa Combined With Bu/Flu/Ara-C in Allo-HSCT for Relapsed or Refractory PTCL.

Reduced Intensity Conditioning With Thiotepa Combined With Busulfan, Fludarabine and Cytarabine in Allogeneic Hematopoietic Stem Cell Transplantation in the Treatment of Relapsed or Refractory Peripheral T-cell Lymphoma.

• Status: Recruiting
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 50 (estimated)
• Sponsor: Xianmin Song, MD · Academic / Other
• Sex: All
• Age: 18 Years – 70 Years
• Healthy volunteers: Not accepted

Summary

This study is a single-center, single-arm, prospective phase II clinical trial that evaluates the efficacy and safety of an reduced-intensity conditioning (RIC) regimen with thiotepa combined with busulfan, fludarabine, and cytarabine for allogeneic hematopoietic stem cell transplantation in the treatment of relapse and refratory peripheral T-cells lymphoma. The conditioning regimen includes thiotepa at a dose of 5mg/kg/d at d -7 (1 day), fludarabine at 30mg/m2/d from d -6 to d -2 (5 days), cytarabine at 1g/m2/d from d -6 to d -2 (5 days), and busulfan at 3.2mg/kg/d from d -4 to d -3 (2 days). Conditioning begins on day -7, and donor hematopoietic stem cell infusion is performed on day 0. All patients will undergo bone marrow examination on day 14 and day 28 post-transplant, followed by bone marrow examinations every 30 days within the first year after transplantation, and every 60 days within the second year after transplantation. FDG-PET/CT imaging will be adopted every 6 months after transplantation. If disease relapse is suspected during the follow-up period, bone marrow and relapse site examinations will be conducted at any time. The primary study endpoints are the 1-year and 2-year progression-free survival (PFS) rates post-transplant. Secondary study endpoints include the incidence of acute graft-versus-host disease (GVHD) within 180 days post-transplant, cumulative relapse rates at 1 year and 2 years post-transplant, 1-year and 2-year overall survival (OS), graft-versus-host disease-free, relapse-free survival (GRFS), non-relapse mortality (NRM), cumulative incidence of chronic GVHD, and the incidence of Cytomegalovirus （CMV）and Epstein-Barr virus（EBV）reactivation within 1 year.

Conditions

• Peripheral T Cell Lymphoma

Interventions

Type	Name	Description
DRUG	Thiotepa	The reduced intensity conditioning regimen is composed by thiotepa (5mg / kg / d-7d (1d)), fludarabine (30mg / m2 / d, -6d--2d (5d)), Ara-C (1g / m2 / d, -6d--2d (5d)), and busulfan (3.2mg / kg / d, -4d-3d (2d)).

Timeline

• Start date: 2024-07-15
• Primary completion: 2026-07-15
• Completion: 2026-07-15
• First posted: 2024-06-21
• Last updated: 2024-08-01

Locations

1 site across 1 country: China