A Optimal Anti-Thymoglobuline (ATG) Dose Decrease cGVHD But Not Increase Leukemia Relapse for Haplo-HSCT

NCT ID: NCT03190733

Last Updated: 2017-06-19

Basic Information

• Recruitment Status: UNKNOWN
• Clinical Phase: PHASE4
• Total Enrollment: 192 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2017-08-30
• Study Completion Date: 2021-09-30

Brief Summary

In this study, a randomized, prospective, multicenter, open cohort study was conducted to investigate patients with acute leukemia (14～60-year-old) with different ATG doses (10 mg / kg and 12.5 mg / kg ) in fludarabine, busulfan, cyclophosphamide and antilymphocyte globulin (FBCA) pretreatment protocol of Haploidentical hematopoietic stem cell transplantation (haplo-HSCT). The purpose is to compare the incidences of chronic graft vs host disease (cGVHD) in haplo-HSCT recipients receiving different dose ATG and one year leukemia relapse after transplantation. The main objective was to investigate the optimal dose of ATG for decrease cGVHD and not increase one year relapse leukemia after haplo-HSCT. Its significance is to provide evidence-based medical evidence to reduce the occurrence of cGVHD and to improve the quality of life of patients with haplo-HSCT.

Detailed Description

Human leukocyte antigen (HLA) haploidentical hematopoietic stem cell transplantation is an effective method for the treatment of hematological malignancies. However, high incidence rate of graft-versus-host disease (GVHD) seriously affects the quality of life of patients.

Using ATG in vivo T cell transplantation regimens reduce the rate of acute GVHD (aGVHD) and cGVHD. However, the optimal dose of ATG is unknown, Huang's reported that a prospective, randomized trial, which compared the long-term outcomes of 2 ATG doses used in myeloablative conditioning before unmanipulated haplo-HSCT. Patients were received 10 mg/kg or 6 mg/kg of ATG in conditioning regimen. The 5-year cumulative incidence of cGVHD was found to be higher with ATG 6mg/kg (75.0% vs 56.3% [P = .007] and moderate-to-severe cGVHD: 56.3% vs 30.4% [P<.0001]. ATG 10mg/kg in conditioning regimen was found to be associated with a lower risk of cGVHD. But the moderate-to-severe cGVHD was as high as 35%. We established the FBCA pretreatment regimen which added ATG and achieve the goal of reducing GVHD. In this FBCA pretreatment regimen the ATG dose was 12.5mg/kg which higher than that of other protocol. The cumulative incidence of grades II-IV aGVHD and cGVHD was 21.9% and 14.3% with the 12.5mg/kg ATG in the FBCA conditioning regimen which was lower than that of ATG 10mg/kg reported by Huang. However, ATG may lead to immunosuppression and lead to slow recovery of immune function and increased infection rate and may increase leukemia relapse after transplantation. What is the optimal does of ATG in FBCA pretreatment regimen which could reduce cGVHD and not increase leukemia relapse after transplantation? Access to ClinicalTrials and other sites found that there was still no related international studies with the FBCA conditioning regimen. We hypothesize that total ATG dose 12.5mg/kg in FBCA pretreatment regimen will decrease cGVHD and not increase leukemia relapse post transplantation.

In this study, a randomized, prospective, multicenter, open cohort study was conducted to investigate patients (14～60-year-old) with different ATG doses (10 mg / kg and 12.5 mg / kg ) in the FBCA pretreatment protocol of haploidentical hematopoietic stem cell transplantation. The purpose of this study is to compare the incidences of cGVHD and one year leukemia relapse in haploidentical hematopoietic stem cell transplant recipients receiving different dose of antithymocyte globulin (ATG) for acute graft-versus-host disease(aGVHD) prophylaxis The first objective was to investigate the optimal dose of ATG for decrease cGVHD and not increase one year relapse leukemia after haplo-HSCT. Its significance is to provide evidence-based medical evidence to reduce the occurrence of cGVHD and to improve the quality of life of patients with HLA haploid hematopoietic stem cell transplantation.

Conditions

Chronic Graft-versus-host-disease; Leukemia Relapse

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: PREVENTION
• Blinding Strategy: SINGLE

Study Groups

ATG 10.0mg/kg

ATG 10.0mg/kg group refers to treatment with ATG in the total dose of 10.0mg/kg.

Group Type: EXPERIMENTAL

ATG

Intervention Type: DRUG

ATG will be intravenously infused via a central venous catheter in 4 or 5 days, from day -4 or -3 until day 0. The other conditioning drugs administered before transplantation include fludarabine (Flu), busulfan (Bu),cyclophosphamide (Cy). All transplant recipients will receive cyclosporine A (CsA), mycophenolate mofetil(MMF) for aGVHD prevention.

ATG 12.5mg/kg

ATG 12.5mg/kg group refers to treatment with ATG in the total dose of 12.5mg/kg.

Group Type: ACTIVE_COMPARATOR

ATG

Intervention Type: DRUG

ATG will be intravenously infused via a central venous catheter in 4 or 5 days, from day -4 or -3 until day 0. The other conditioning drugs administered before transplantation include fludarabine (Flu), busulfan (Bu),cyclophosphamide (Cy). All transplant recipients will receive cyclosporine A (CsA), mycophenolate mofetil(MMF) for aGVHD prevention.

Interventions

ATG

ATG will be intravenously infused via a central venous catheter in 4 or 5 days, from day -4 or -3 until day 0. The other conditioning drugs administered before transplantation include fludarabine (Flu), busulfan (Bu),cyclophosphamide (Cy). All transplant recipients will receive cyclosporine A (CsA), mycophenolate mofetil(MMF) for aGVHD prevention.

Intervention Type: DRUG

Other Intervention Names

fludarabine

Eligibility Criteria

Inclusion Criteria

1. patients age between 14 yeas old and 60 years old

2. patients with acute myeloid leukemia and acute lymphoblastic leukemia who needed stem cell transplantation without available HLA-identical related or unrelated donors

Exclusion Criteria

1. Patients with severe infections

2. patients with major organ abnormal including renal, liver, lung or heart.

3. Patients with any conditions not suitable for the trial (investigators' decision)

4. patients age below 14 years old and more than 60 years old.

• Minimum Eligible Age: 14 Years
• Maximum Eligible Age: 60 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Nanfang Hospital, Southern Medical University

OTHER

Sponsor Role: collaborator

First Affiliated Hospital, Sun Yat-Sen University

OTHER

Sponsor Role: collaborator

Second Affiliated Hospital, Sun Yat-Sen University

OTHER

Sponsor Role: collaborator

Zhujiang Hospital

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Bingyi Wu, MD

Role: PRINCIPAL_INVESTIGATOR

Zhejiang Hospital of southern Medical Unversity

Central Contacts

Jianghui xu, Dr

Role: CONTACT

xiaoxu_75@sina.com

00862062782318

References

Lin X, Lu ZG, Song CY, Huang YX, Guo KY, Deng L, Tu SF, He YZ, Xu JH, Long H, Wu BY. Long-term outcome of HLA-haploidentical hematopoietic stem cell transplantation without in vitro T-cell depletion based on an FBCA conditioning regimen for hematologic malignancies. Bone Marrow Transplant. 2015 Aug;50(8):1092-7. doi: 10.1038/bmt.2015.108. Epub 2015 May 11.

Reference Type: BACKGROUND

PMID: 25961770 (View on PubMed)

Long H, Lu ZG, Song CY, Huang YX, Xu JH, Xu JX, Deng L, Tu SF, He YZ, Lin X, Guo KY, Wu BY. Long-term outcomes of HLA-haploidentical stem cell transplantation based on an FBCA conditioning regimen compared with those of HLA-identical sibling stem cell transplantation for haematologic malignancies. Bone Marrow Transplant. 2016 Nov;51(11):1470-1475. doi: 10.1038/bmt.2016.170. Epub 2016 Jun 20.

Reference Type: BACKGROUND

PMID: 27322852 (View on PubMed)

Chang YJ, Wang Y, Mo XD, Zhang XH, Xu LP, Yan CH, Chen H, Chen YH, Chen Y, Han W, Wang FR, Wang JZ, Liu KY, Huang XJ. Optimal dose of rabbit thymoglobulin in conditioning regimens for unmanipulated, haploidentical, hematopoietic stem cell transplantation: Long-term outcomes of a prospective randomized trial. Cancer. 2017 Aug 1;123(15):2881-2892. doi: 10.1002/cncr.30540. Epub 2017 Mar 16.

Reference Type: BACKGROUND

PMID: 28301690 (View on PubMed)

Other Identifiers

2016-XYNK-001

Identifier Type: -

Identifier Source: org_study_id