- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01772953
Treosulfan/Fludarabine/Low Dose TBI as a Preparative Regimen for Children With AML/MDS Undergoing Allo HCT
A Phase II Study of Treosulfan/Fludarabine/Low Dose Total Body Irradiation as a Preparative Regimen for Children With AML/MDS Undergoing Allogeneic Hematopoietic Cell Transplantation
Study Overview
Status
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
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Alabama
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Birmingham, Alabama, United States, 35233
- Children's Hospital of Alabama/UAB
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Arizona
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Phoenix, Arizona, United States, 85016
- Phoenix Children's Hospital
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California
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Duarte, California, United States, 91010
- City of Hope
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Los Angeles, California, United States, 99027
- Children's Hospital Los Angeles
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Colorado
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Aurora, Colorado, United States, 80045
- Children's Hospital of Colorado
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District of Columbia
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Washington, DC, District of Columbia, United States, 20010
- Children's National Medical Center
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Florida
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St. Petersburg, Florida, United States, 33701
- All Children's Hospital
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Indiana
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Indianapolis, Indiana, United States, 46202
- Riley Hospital for Children/Indiana University
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Michigan
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Ann Arbor, Michigan, United States, 48109
- University of Michigan
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Minnesota
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Minneapolis, Minnesota, United States, 55455
- University of Minnesota
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Missouri
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Kansas City, Missouri, United States, 64108
- Children's Mercy Hospital
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St. Louis, Missouri, United States, 63130
- Washington University, St. Louis Children's
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Ohio
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Cleveland, Ohio, United States, 44195
- Cleveland Clinic
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Cleveland, Ohio, United States, 44106
- University Hospitals Case Medical Center
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Columbus, Ohio, United States, 43205
- Nationwide Children's Hospital
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Oregon
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Portland, Oregon, United States, 97239
- OHSU/Doernbecher Children's Hospital
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South Carolina
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Charleston, South Carolina, United States, 29425
- Medical University of South Carolina
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Tennessee
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Memphis, Tennessee, United States, 38105
- St. Jude's Children's Research Hospital
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Texas
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San Antonio, Texas, United States, 78229
- Methodist Children's Hospital of South Texas
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Utah
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Salt Lake City, Utah, United States, 84111
- Primary Children's Medical Center - University of Utah
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Washington
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Seattle, Washington, United States, 98109
- Fred Hutchinson Cancer Research Center
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Wisconsin
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Madison, Wisconsin, United States, 53705
- University of Wisconsin - Madison
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Milwaukee, Wisconsin, United States, 53226
- Medical College of Wisconsin/Children's Hospital of Wisconsin
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age < 21 years.
Disease and disease status:
- Acute myeloid leukemia (AML) in morphologic remission (defined as < 5% blasts in a bone marrow aspirate of adequate cellularity performed within 28 days from start of conditioning).
- Myelodysplastic syndrome (MDS): Any 2008 WHO classification subtype (Appendix I). RAEB-2 patients may proceed directly to transplant, but may also be considered for induction chemotherapy before transplant. Patients with ≥20% morphologic marrow blasts will require induction therapy to reduce morphologic marrow blasts below 5% before transplant.
- Karnofsky Index or Lansky Play-Performance Scale > 70 % on pre-transplant evaluation. Karnofsky scores must be used for patients > 16 years of age and Lansky scores for patients < 16 years of age.
- Able to give informed consent if > 18 years, or with a legal guardian capable of giving informed consent if < 18 years.
- Negative pregnancy test (serum, urine β-HCG, or other test per institutional guidelines) for females of childbearing potential.
- A single previous autologous or allogeneic HCT is allowed as long as the time from first to second transplant hematopoietic cell infusion is no less than 6 months.
With a suitable allogeneic hematopoietic cell donor including, as available:
- HLA-identical related donor matched for HLA-A, and -B at the serologic level at minimum and -DRB1 at high resolution by molecular typing. A single locus mismatched related donor (7/8 matched) is permitted only if there are no 8/8 matched unrelated donors available.
- Unrelated volunteer donor matched for HLA-A, -B, -C and -DRB1 defined by high resolution molecular typing. A single HLA antigen or allele mismatch (7/8 matched) is permitted.
Unrelated cord blood (UCB) matched to the recipient at a minimum of 4 of 6 loci at HLA-A, and -B by intermediate resolution and -DRB1 by high resolution. Cord blood unit(s) will be selected using the following criteria:
- Unit selection is based on the cryopreserved total nucleated cell (TNC) dose and matching at HLA-A, -B intermediate resolution and -DRB1 high resolution typing. While HLA-C antigen/allele level typing is not considered in the matching criteria, if available, it may be used to optimize unit selection.
- Selection of two UCB units is required if a single UCB unit will not provide a sufficient cell dose (see Table 1 below). When two UCB units are not required per Table 1, two UCB units may be used with approval of the study chair or designee. When two units are selected, the following rules apply:
- The UCB unit with the least HLA disparity with the patient, followed by the larger cell dose for equivalently matched units, will be considered unit #1 (selection priority is 6/6 match >5/6 match>4/6 match).
- An additional UCB unit may be required to achieve the required cell dose, as outlined in the table below. The second unit will be the one that most closely HLA matches the patient and meets minimum size criteria as outlined below (i.e. a smaller and more closely matched unit will be selected over a larger less well matched unit as long as minimum cell dose criteria are met).
Each UCB unit MUST contain at least 1.5 x 10^7 TNC per kilogram recipient weight.
3) Other comments about cord blood unit selection:
- Use of unlicensed cord blood units will adhere to current federal regulatory requirements for procurement.
- Units will be selected based on the TNC dose and HLA matching.
- A UCB unit that is 4/6 or 5/6 mismatched but homozygous at the locus of mismatch should be chosen over a 5/6 unit with bidirectional mismatch even if the latter unit provides a larger cell dose. This is only applicable to choosing units within a given match grade.
- Within the best HLA match grade, the unit containing the greatest number of cells will be chosen. If there are two units of equivalent cell dose within a match level, choose the unit with best match by higher resolution molecular typing, if known.
Other factors to be considered:
i. Within the same HLA match grade, matching at both DR loci is preferable. ii. UCB units sourced from cord blood banks located in the United States are preferred.
iii. Younger units are preferred over older units, all other factors being equal.
Adequate organ function, defined as:
- Pulmonary: FEV1, FVC, and corrected DLCO must all be ≥ 50% of predicted by pulmonary function tests (PFTs). For children who are unable to perform for PFTs due to age, the criteria are: no evidence of dyspnea at rest and there is no need for supplemental oxygen.
- Renal: GFR estimated by the updated Schwartz formula ≥ 90/min/1.73 m2, i.e. height (cm)/serum creatinine (mg/dl) > 220. If the estimated creatinine clearance is < 90 ml/min/1.73 m2, then renal function must be measured by 24-hour creatinine clearance or nuclear GFR, and must be > 70 mL/minute/1.73 m2
- Cardiac: Shortening fraction of ≥ 27% by echocardiogram or radionuclide scan (MUGA) or ejection fraction of ≥ 50% by echocardiogram or radionuclide scan (MUGA)
- Hepatic: SGOT (AST) or SGPT (ALT) < 5 x upper limit of normal (ULN) for age; Conjugated bilirubin < 2.5 mg/dL, unless attributable to Gilbert's Syndrome.
- Co- enrollment in PBMTC ONC 1001 (CIBMTR 09-MRD) protocol and/or CIBMTR 10-CBA protocol (NMDP cord blood IND) is allowed. Co-enrollment on any other studies where experimental therapy is being administered will be handled on a case-by-case basis and must be discussed with the study chair or designee prior to enrollment.
Exclusion Criteria:
- Pregnant or lactating females are ineligible as many of the medications used in this protocol could be harmful to unborn children and infants.
- Patients with HIV or uncontrolled fungal, bacterial or viral infections are excluded. Patients with history of fungal disease during induction therapy may proceed if they have a significant response to antifungal therapy with no or minimal evidence of disease remaining by CT evaluation.
- Patients with active CNS leukemia or any other active site of extramedullary disease at the time of enrollment are not permitted. Note: Those with prior history of CNS or extramedullary disease, but with no active disease at the time of pre-transplant workup, are eligible.
- Patients undergoing a course of chemotherapy using another investigational drug.
- Patients diagnosed with Fanconi Anemia.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: treosulfan, fludarabine and low-dose TBI prep regimen
Treosulfan: 10-14 g/m2/day IV over 120 minutes on days -6, -5 and -4. Treosulfan will be administered prior to fludarabine on days -6 to -4 to facilitate PK testing. Fludarabine: 30 mg/m2 IV for patients > 10 kg (or 1 mg/kg IV for patients < 10 kg) once daily per institutional infusion standards on days -6 through -2 for a total dose of 150 mg/m2 (or 5 mg/kg). A single fraction of 200 cGy TBI will be administered on day -1. Stem cell infusion on day 0 |
This is a phase II, open-label, nonrandomized, prospective study of a preparative regimen consisting of treosulfan, fludarabine and low-dose total body irradiation (TBI) for children with acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) undergoing allogeneic hematopoietic cell transplantation (HCT).
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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The primary endpoint will be overall survival (OS) at one year
Time Frame: 1 year
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The primary objective of this study is to determine the safety and preliminary efficacy of a transplant preparative regimen consisting of treosulfan, fludarabine and low-dose TBI for children with AML and MDS.
The primary endpoint will be overall survival (OS) at one year.
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1 year
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Pharmacokinetic (PK) profile of Treosulfan in children < 40 kg
Time Frame: 1 year
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Drug plasma concentrations will be determined by: Cmax; half lives (t1/2); area under the curve (AUC); volumes of distribution (V); clearances (CL); mean residence times (MRT)
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1 year
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Non-Relapse Mortality
Time Frame: 1 year
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The event is death in continuous remission treating relapse as the competing risk.
Patients alive and in remission at the time of last observation will be censored.
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1 year
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Disease-Free Survival
Time Frame: 1 year
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Disease-free survival is defined as the minimum time interval from transplant to relapse/recurrence of disease, to death or to last follow-up.
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1 year
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Neutrophil Engraftment
Time Frame: 1 year
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Neutrophil engraftment is defined as achieving a donor derived absolute neutrophil count (ANC) ≥ 500/μL for three consecutive measurements on different days.
The first of the three days will be designated as the time to neutrophil engraftment.
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1 year
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Donor Chimerism
Time Frame: 1 year
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Peripheral blood chimerism (% of donor chimerism) in whole blood or fractions sorted for T-cell and myeloid subsets (CD3 and CD33) will be described on days 28, 42, 100, 180 and 365.
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1 year
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Acute graft-versus-host disease (GVHD)
Time Frame: 1 year
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Incidences of grade II - IV and III - IV acute GVHD at days 42, 100, 180 and 365 will be graded according to the BMT CTN Manual of Procedures
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1 year
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Relapse
Time Frame: 1 year
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Testing for recurrent malignancy in the blood, marrow or other sites will be used to assess relapse after transplantation.
For the purpose of this study, relapse is defined by either morphological or cytogenetic evidence of AML or MDS consistent with pre-transplant features.
The event for this endpoint is the time interval from transplant to relapse/recurrence of disease or to last follow-up.
Death in remission is considered a competing risk.
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1 year
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Primary graft failure
Time Frame: 1 Year
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This endpoint will be evaluated separately for bone marrow/peripheral blood and cord blood. Primary graft failure is defined as lack of donor-derived neutrophil engraftment by 56 days. This time point was chosen to adjust for potential differences in time to engraftment that may be observed in cord blood vs. marrow/PBSC recipients. This outcome will be evaluated separately for bone marrow/peripheral blood and cord blood based on neutrophil count and peripheral blood chimerism obtained on day 42 ± 14. Relapse and death prior to neutrophil engraftment are considered competing risks for the endpoint of primary graft failure. |
1 Year
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Platelet engraftment of > 20,000/μL and >50,000/μL
Time Frame: 1 Year
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Time to platelet engraftment is defined as the first day of a minimum of three consecutive measurements on different days such that the patient has achieved a platelet count > 20,000/μL and > 50,000/μL with no platelet transfusions in the preceding seven days.
The first day of the three measurements will be designated as the day of platelet engraftment.
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1 Year
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Chronic graft-versus-host disease (GVHD)
Time Frame: 1 Year
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Incidence of chronic GVHD on days 100, 180 and 365 will be scored according to the BMT CTN MOP
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1 Year
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Secondary graft failure
Time Frame: 1 year
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Secondary graft failure is defined as initial donor-derived neutrophil engraftment followed by subsequent decline in ANC to < 500/μL for three consecutive measurements on different days, and unresponsive to growth factor therapy, with loss of donor chimerism to < 50% donor CD3 in peripheral blood.
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1 year
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Primary cause of death
Time Frame: 1 year
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Primary cause of death will be classified as: Relapse/Primary disease; GVHD; Infection; Organ Toxicity; Other
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1 year
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Collaborators and Investigators
Collaborators
Investigators
- Study Chair: Eneida Nemecek, MD, Doernbecher Children's Hospital, Oregon Health & Science University
- Study Chair: Colleen Delaney, MD, Seattle Children's Hospital, Fred Hutchinson Cancer Research Center
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Neoplasms by Histologic Type
- Neoplasms
- Bone Marrow Diseases
- Hematologic Diseases
- Precancerous Conditions
- Leukemia
- Leukemia, Myeloid
- Myelodysplastic Syndromes
- Leukemia, Myeloid, Acute
- Preleukemia
- Molecular Mechanisms of Pharmacological Action
- Antineoplastic Agents
- Antineoplastic Agents, Alkylating
- Alkylating Agents
- Treosulfan
Other Study ID Numbers
- 11-TREO
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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