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Phase 2 N=54 Treatment

Allogeneic Hematopoietic Cell Transplantation for Patients With Busulfex-based Regimen

Chronic Myeloproliferative Disorders · Leukemia · Lymphoma · Multiple Myeloma and Plasma Cell Neoplasm · Myelodysplastic Syndromes

Enrolled (actual)
54
Serious AEs
48.2%
Results posted
Jul 2017
Primary outcome: Primary: Three-year Relapse-free Survival (RFS) Rate at the Maximum Tolerated Dose Identified During Phase I of the Trial (Target AUC 6912) — 22; 39; 43 percentage of participants

Study Design & Population

Study type
Interventional
Phase
Phase 2
Interventions
rabbit anti-thymocyte globulin (ATG) (Biological); therapeutic allogeneic lymphocytes (Biological); busulfan (Drug); fludarabine phosphate (Drug); tacrolimus (Drug); allogeneic hematopoietic stem cell transplantation (Procedure); peripheral blood stem cell transplantation (Procedure); methotrexate (Drug)
Age
Adult · 18+ yrs
Sex
All
Sponsor
UNC Lineberger Comprehensive Cancer Center
Primary completion
Nov 2015

Outcome Measures

OutcomeResultp-value
PRIMARY
Three-year Relapse-free Survival (RFS) Rate at the Maximum Tolerated Dose Identified During Phase I of the Trial (Target AUC 6912)
22; 39; 43
PRIMARY
Number of Participants With Dose Limiting Toxicities (DLTs)
1; 1; 1; 2; 2
SECONDARY
Capacity of Test Dosing of Busulfan That Would Result in the Desired Area Under the Curve Concentration Exposure of Patients Receiving a Full-dose Busulfan Regimen
11.7; 4.9; 10.2; 11.1; 15.9
SECONDARY
Incidence of Graft vs Host Disease in Patients Between One Month and Two Years Post Transplant
7; 10; 11; 2; 4; 3
SECONDARY
Incidence of DNA Chimerism in Patients Between One Month Post Transplant
49; 47; 46; 30
SECONDARY
Overall Survival
28; 39; 55

Summary

RATIONALE: Giving chemotherapy, such as fludarabine and busulfan, before a donor peripheral stem cell transplant helps stop the growth of cancer or abnormal cells. It also helps stop the patient's immune system from rejecting the donor's stem cells. When the healthy stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Giving a monoclonal antibody, alemtuzumab, before the transplant and tacrolimus after the transplant may stop this from happening. PURPOSE: The phase I portion of this trial identified the maximum tolerated dose of busulfan after treating 40 patients on a dose-escalation scheme. We are now treating an additional 26 patients on the phase II portion of the trial at a Pharmacokinetic (PK)-directed dose of total area under curve (AUC) 6912 micrometer (uM)-min/24 hours. We transitioned to the Phase II portion of the study in October 2009.

Eligibility Criteria

INCLUSION CRITERIA

Histologically confirmed diagnosis of any of the following:

Chronic lymphocytic leukemia or prolymphocytic leukemia Chemotherapy-refractory or advanced disease after ≥ 3 prior treatments Chronic myelogenous leukemia Diagnosis based on t(9;22) or related t(9;12) cytogenetic abnormalities AND characterized by elevated white blood counts (WBC) in peripheral blood or marrow Patients with progressive disease on imatinib mesylate or other protein tyrosine kinase inhibitors; less than a major cytogenetic or fluorescent in situ hybridization (FISH) complete response (CR) after a minimum of 6 months of targeted therapy; or less than a complete FISH or cytogenetic response after 12 months of targeted therapy are eligible Patients with other cytogenetic abnormalities, such as t(9;12), that are associated with an aggressive clinical course are eligible Non-Hodgkin's lymphoma (NHL) or Hodgkin's lymphoma Any World Health Organization (WHO) classification histologic subtype allowed Must have advanced disease as defined by relapse after initial CR or failure to achieve CR OR deemed to have less than a 30% likelihood of durable response with an autologous stem cell transplant Refractory low-grade NHL histologies or any intermediate or aggressive large cell or mantle cell lymphoma allowed Acute myeloid leukemia (AML) High-risk disease in first CR (CR1) OR evidence of any recurrent disease beyond CR1 High-risk individuals are those requiring more than 1 course of induction therapy to achieve remission; those with extra-medullary disease at presentation; or those with high-risk cytogenetic abnormalities (abnormalities of chromosomes 5, 7, 2, trisomy 8, or 3) or > 2 cytogenetic abnormalities

  • Multiple myeloma
  • Myelodysplastic syndromes (MDS) Must have MDS defined by WHO criteria with > 5% blasts or high-risk cytogenetic abnormalities (abnormalities of chromosomes 5, 7, 2, trisomy 8, or 3)
  • Acute lymphoblastic leukemia (ALL) High-risk disease in CR1 OR beyond CR1 High-risk disease includes the following: t(9;22) or t(4;11); WBC > 30,000/mm³ at presentation; non-T-cell phenotype; or more than 30 years of age
  • Myelofibrosis/agnogenic myeloid metaplasia
  • Patients must be transfusion dependant or have evidence of evolving AML as evidenced by an excess of blasts or a state of marrow failure/fibrosis
  • Myeloproliferative disorders with advanced disease (e.g., progressive or spent phase polycythemia vera, myelofibrosis, or essential thrombocythemia)
  • Any of the following categories of donors are acceptable*:
  • Human Leucocyte Antigen (HLA)-identical or 1 antigen-mismatched sibling (5/6, 6/6, or 8/10) donor
  • Minimal serologic typing required for class I (A, B); molecular typing required for class II (DRB1)
  • 8/10 matched unrelated donor (MUD)
  • Molecular analysis at HLA-A, -B, -C, -DRB1 and -DQB1 (8/10 match) by high resolution typing is required
  • 5/6 MUD
  • Molecular analysis at HLA-A, -B, and -DRB1 required Note: *No syngeneic donors

PATIENT CHARACTERISTICS:

  • Performance status 0-2
  • Bilirubin ≤ 2 times upper limit of normal (ULN)
  • Aspartate aminotransferase (AST) ≤ 2 times ULN
  • Creatinine clearance ≥ 50 mL/min
  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception
  • Diffusing capacity of the lungs for carbon monoxide (DLCO) > 60% with no symptomatic pulmonary disease
  • Left ventricular ejection fraction (LVEF) ≥ 50% by multigated acquisition (MUGA) scan

EXCLUSION CRITERIA Uncontrolled or severe cardiovascular disease, pulmonary disease, or infection that, in the opinion of the treating physician, would make this study unreasonably hazardous to the patient Other serious illness that would limit survival to < 2 years Psychiatric condition that would preclude study compliance Uncontrolled diabetes mellitus or active serious infection Active second malignancy except for nonmelanomatous skin cancer Known hypersensitivity to E. coli-derived products HIV positivity

PRIOR

View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT00448357). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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