Skip to content

Allogeneic Hematopoietic Stem Cell Transplantation (AlloSCT) Initial Salvage Therapy for Induction Failure Acute Myeloid Leukemia (AML)

Allogeneic Hematopoietic Stem Cell Transplantation as Initial Salvage Therapy for Patients With Primary Induction Failure Acute Myeloid Leukemia Refractory to High-Dose Cytarabine-Based Induction Chemotherapy

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02441803
Enrollment
11
Registered
2015-05-12
Start date
2015-09-14
Completion date
2021-09-22
Last updated
2024-02-22

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

Conditions

Leukemia

Keywords

Leukemia, Acute myeloid leukemia, AML, Refractory, Allogeneic hematopoietic stem cell transplantation, AHSCT, Busulfan, Busulfex, Myleran, Fludarabine, Fludarabine Phosphate, Fludara, Clofarabine, Clofarex, Clolar, Total body irradiation, TBI, XRT, Thymoglobulin, ATG (Rabbit), Rabbit antithymocyte Globulin, Rabbit Antilymphocyte Globulin, Rabbit ATG, rATG, Stem cell infusion, Cyclophosphamide, Cytoxan, Neosar, Tacrolimus, Prograf, Mycophenolate mofetil, MMF, CellCept, Decitabine, Dacogen, Cytarabine, Ara-C, Cytosar, DepoCyt, Cytosine Arabinosine Hydrochloride, Idarubicin, Idamycin

Brief summary

Objectives: Primary Objectives: 1. To determine the safety and feasibility of allogeneic hematopoietic stem cell transplantation (AHSCT) as initial salvage treatment for patients with primary induction failure (PIF) acute myeloid leukemia (AML). 2. To determine efficacy of AHSCT following decitabine, clofarabine, idarubicin, and cytarabine (DCIA) salvage chemotherapy evaluated by overall response rate (RR), defined as complete response (CR) or CR without platelet recovery (CRp) or CR with insufficient hematological recovery (CRi). Secondary Objectives: 1. To determine the percentage of patients with PIF AML eligible for AHSCT after up to 2 courses of induction chemotherapy. 2. To determine the early treatment-related mortality (TRM) (within first 4 weeks of first salvage chemotherapy regimen with DCIA and day 100 TRM after AHSCT. 3. To determine the efficacy DCIA regimen as salvage chemotherapy for patients with PIF AML (% of patients who achieve \</=5% bone marrow blasts prior to AHSCT. 4. To determine the TRM at 1 year, relapse rate (RR), overall survival (OS) and event-free survival (EFS) for patients with PIF AML treated with DCIA followed by early AHSCT.

Detailed description

Salvage Chemotherapy Before Transplant: Study Drug Administration: On Days 1-5, you will receive decitabine 1 time each day by vein over about 1-3 hours. On Days 6-10: * You will receive cytarabine 1 time a day by vein over about 1-3 hours. * On Days 6-8 only, you will receive idarubicin 1 time a day by vein over about 30 minutes. * On Days 6-9 only, you will receive clofarabine 1 time a day by vein over about 1-2 hours. Study Visits: After your last study drug dose: * Blood (about 2 teaspoons) will be drawn to check your kidney and liver function. * You will have an echocardiogram (ECHO) or multigated acquisition (MUGA) scan to check your heart function. * You will have a lung function test. On Day 21 (+/- 7 days), you will have a bone marrow biopsy/aspirate to check the status of the disease. To collect a bone marrow biopsy/aspirate, an area of the hip is numbed with anesthetic, and a small amount of bone and bone marrow is withdrawn through a large needle. If the results of your bone marrow biopsy/aspirate, blood tests, and heart and lung function tests show that you are eligible to receive an allogeneic stem cell transplant, you will be asked to sign a separate informed consent for the transplant. If the results of your bone marrow aspirate/biopsy, blood tests, and heart and lung function tests show that you are not eligible to receive an allogeneic stem cell transplant you will not receive it. The study staff will call you and ask how you are feeling and about any other drugs you may be taking every 3 months for 2 years after your last study drug dose. These calls should last about 5 minutes each. If you are found to NOT be eligible to receive an allogeneic stem cell transplant, your doctor will discuss other treatment options with you. Stem Cell Transplant: Study Drug Administration, Pharmacokinetic (PK) Testing, and Stem Cell Transplant: For a stem cell transplant, the days before you receive your stem cells are called minus days. The day you receive the stem cells is called Day 0. The days after you receive the stem cells are called plus days. You will receive a dose of busulfan by vein over about 45 minutes to 1 hour as an outpatient or as an inpatient on Day -8. With the first busulfan infusion, blood (about 1 teaspoon each time) will be drawn for pharmacokinetic (PK) testing about 11 times over 11 hours before and after you receive your first dose of busulfan. PK testing measures the amount of study drug in the body at different time points. The study staff will tell you the blood testing schedule. Test doses are used to study how your body breaks down busulfan and decide the dose of busulfan that you will receive on Days -6 through -3. A heparin lock line will be placed in your vein before the PK testing to lower the number of needle sticks needed for these draws. If for any reason it is not possible for the PK tests to be performed, you will receive the standard dose of busulfan. On Day -7, you will rest. On Days -6 through -3, you will receive fludarabine by vein over 1 hour, clofarabine by vein over 1 hour, and then busulfan by vein over 3 hours. On Days -3 and -2, if you will receive stem cells from a matched unrelated donor, you will receive ATG by vein over 4 hours each day. On Day -2, if you will receive stem cells from a haploidentical donor, you will receive total body irradiation (TBI) one time. TBI involves the delivery of high doses of radiation designed to destroy cancer cells and/or lower the immune system in order to lower the risk of the body rejecting the new stem cells. On Day -2, you will receive tacrolimus by vein over 24 hours every day until you are able to take it by mouth. Tacrolimus is designed to weaken the immune system and lower the risk of graft-versus-host-disease (GVHD - a reaction of the donor's immune cells against your body). After you are able to take tacrolimus by mouth, you will take it every day for about 6 months, or until the doctor thinks it is safe to stop. On Day -1, you will rest. If you will receive stem cells from a matched sibling donor, you will rest on Days -2 and -1. On Day 0, you will receive the donor's stem cells by vein. The infusion will last anywhere from about 30 minutes to several hours. If you will receive stem cells from a haploidentical donor: After the stem cell infusion, you will receive tacrolimus to help lower the risk of GVHD. Tacrolimus will be given by vein non-stop for about 2 weeks. After the 2 weeks of taking tacrolimus by vein, you will take tacrolimus by mouth as a pill for at least 4 months after the transplant. On Days +3 and +4, you will receive cyclophosphamide by vein over 3 hours. Cyclophosphamide is given to lower the immune system in order to lower the risk of GVHD. If you receive stem cells from a matched sibling or matched unrelated donor: On Days +1, +3, +6, and +11, you will receive methotrexate by vein over 30 minutes. Methotrexate is given to help prevent GVHD. Study Testing: Before you are sent home from the hospital and/or clinic, you will receive additional written instructions. These instructions will include how often you will come to the hospital/clinic, which standard drugs you will take at home, and what side effects you may have and what to do for them. After finishing the chemotherapy and transplant, your follow-up care will be routine standard of care follow-up that all patients receiving allogeneic stem cell transplantation receive. At each visit, you will have a physical exam. You will be asked about any side effects you may have had. Blood (about 1 tablespoon) will be drawn for routine tests. If the doctor thinks it is needed, you will have a bone marrow aspiration to check the status of the disease. To collect a bone marrow aspirate, an area of the hip or other site is numbed with anesthetic, and a small amount of bone marrow is withdrawn through a large needle. Length of Treatment: After 2 years, your participation in this study will be over. You may be taken off study early if the disease gets worse, if your transplant does not take (graft failure), if you are unable to follow study directions, if your doctor thinks it is in your best interest, if the study is stopped, or if you choose to leave the study early. If for any reason you want to leave the study early, you must talk to the study doctor. It may be life-threatening to leave the study after you have started to receive the study drugs but before you receive the stem cell transplant because your blood cell counts will be dangerously low.

Interventions

DRUGBusulfan

Test dose Busulfan 32 mg/m2 given by vein on Day -8. Busulfan AUC 5,000 by vein on Days -6 to -3.

DRUGFludarabine

Fludarabine 10 mg/m2 by vein on Days -6 to -3.

DRUGClofarabine

Salvage Chemotherapy Before Transplant: Clofarabine 15 mg/m2 by vein on Days 6 - 9. Stem Cell Transplant: Clofarabine 40 mg/m2 by vein on Days -6 to -3.

RADIATIONTotal Body Irradiation (TBI)

Total body irradiation (TBI) delivered at 2Gy on Day -2.

DRUGThymoglobulin

Thymoglobulin 2.0 mg/Kg by vein on Days -3 and -2.

BIOLOGICALStem Cell Infusion

Fresh or cryopreserved bone marrow or peripheral blood (PB) progenitor cells infused on Day 0. Goal is to infuse 4 X 106 CD34+ cells/kg if PB or \>3.0 X 108 marrow mononuclear cells/kg if bone marrow.

DRUGCyclophosphamide

Cyclophosphamide 50 mg/kg by vein on Days +3 and +4.

DRUGTacrolimus

Tacrolimus 0.015 mg/kg/day by vein or mouth on Day +5.

DRUGMycophenolate mofetil

Mycophenolate mofetil 15 mg/kg/dose by vein or by mouth three times a day from Day +5 to Day+100.

DRUGDecitabine

20 mg/m2 by vein on Days 1 - 5.

DRUGCytarabine

1 g/m2 by vein on Days 6 - 10.

DRUGIdarubicin

10 mg/m2 by vein on Days 6 - 8.

Sponsors

M.D. Anderson Cancer Center
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Patients age 18-60 years. 2. Patients with diagnosis of AML, judged primary refractory after up to 2 courses of AML induction therapy (\> 5% blasts on day 21 (+/-7 days) bone marrow aspirate and/or biopsy from the beginning of induction chemotherapy, up to 42 days). 3. Eastern Cooperative Oncology Group (ECOG) Performance Status \</= 2. 4. Adequate major organ function:, defined as: a) Serum creatinine \</= 3 mg/dL; b) Total bilirubin \</= 2.5 mg/dL; c) ALT (SGPT) \</= 3 x ULN or \</= 5 x ULN if related to disease; d) Cardiac ejection fraction \>/= 40% (by either ECHO or MUGA). 5. Willingness to have an allogeneic transplant. 6. Patient or patient's legal representative able to provide written informed consent. 7. Patients are required to meet the following criteria to proceed to AHSCT: 8. Donor criteria: Availability of a donor either an HLA matched sibling donor (MSD) or a haploidentical (5-9/10 HLA matched); alternatively a 8/8 HLA matched unrelated donor (MUD) by high resolution typing is immediately available; 9. Disease criteria: Day 21 (+/-7 days) bone marrow aspiration or biopsy from the beginning of salvage DCIA: a. In complete morphologic remission with \<5% bone marrow blasts, or b. Aplastic (\<10% bone marrow cellularity), and cytopenic with an absolute neutrophil count (ANC) less than 1,000/µL, or c. Low disease burden with \< 30% BM blasts, with recovery of peripheral blood (PB) WBC (ANC\>1,000/µL) and \<5% circulating blasts. 10. Adequate organ function criteria: a. Serum creatinine clearance \>/= 50 ml/min (calculated by Cockcroft-Gault formula); b. Total bilirubin \</= 2 times upper limit of normal (x ULN) (3 x ULN if considered to be due to leukemic involvement or Gilbert's syndrome); c. Alanine aminotransferase (ALT) \</= 3 x ULN (5.0 x ULN if considered to be due to leukemic involvement); d. LVEF \>/= 40% on ECHO or MUGA; e. DLCO \>/= 50% predicted after correction for hemoglobin (must be performed in patients with history of smoking or lung disease;); DLCO may be omitted in patients without history of pulmonary disease if approved by the Study Chair. 11. No active infection: Patients should be afebrile. If present, pulmonary infiltrates or other sites of infection must be improving on antibiotics. Patients should not require oxygen. Study Chair will be the arbiter of this criterion.

Exclusion criteria

1. HIV positive; active hepatitis B or C. 2. Uncontrolled active infections (viral, bacterial, and fungal); the Study Chair will be the final arbiter of this criterion. 3. Patients with active secondary malignancy unless approved by the Study Chair. 4. Liver cirrhosis. 5. Active CNS involvement within the previous 2 months. 6. Prior induction therapy with DAC + CIA. 7. Positive pregnancy test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization. 8. Breast feeding women. 9. Men must agree not to father a child and agree to use a condom if his partner is of child bearing potential. 10. Inability to comply with medical therapy or follow-up.

Design outcomes

Primary

MeasureTime frameDescription
Overall Response (OR) Post Transplant4 months after initial treatment/3 months after transplantNumber of participants classified as achieving overall response of complete remission(CR: \< 5% blast in a bone marrow/and platelet \>100/and ANC \>1) or CR without platelet recovery (CRp: \< 5% blast in a bone marrow/and platelet \<100/and ANC \>1) or CR with insufficient hematological recovery (CRi: \< 5% blast in a bone marrow/and platelet \>100/and ANC \<1) post transplant.
Treatment-Related Mortality (TRM)4 months post initial treatment/3 months post transplantNumber of participants died from treatment-related death within 4 months post initial treatment/3 months post transplant.

Secondary

MeasureTime frameDescription
Overall Survival (OS)1 yearNumber of participants alive and disease free in 1 year post transplant.

Countries

United States

Participant flow

Recruitment details

All participants were recruited in MD Anderson Cancer Center

Participants by arm

ArmCount
Matched Sibling Donor Group
AML patients with primary induction failure refractory to HD Cytarabine based chemotherapy received matched sibling donor stem cell transplant
1
Haploidentical Donor Group
AML patients with primary induction failure refractory to HD Cytarabine based chemotherapy received haplo-identical related donor stem cell transplant
8
Matched Unrelated Donor Group
AML patients with primary induction failure refractory to HD Cytarabine based chemotherapy received matched unrelated donor stem cell transplant
2
Total11

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyPhysician Decision022

Baseline characteristics

CharacteristicMatched Sibling Donor GroupHaploidentical Donor GroupMatched Unrelated Donor GroupTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
1 Participants8 Participants2 Participants11 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
1 Participants7 Participants2 Participants10 Participants
Region of Enrollment
United States
1 participants8 participants2 participants11 participants
Sex: Female, Male
Female
1 Participants4 Participants0 Participants5 Participants
Sex: Female, Male
Male
0 Participants4 Participants2 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
1 / 17 / 80 / 2
other
Total, other adverse events
1 / 16 / 80 / 2
serious
Total, serious adverse events
0 / 15 / 80 / 2

Outcome results

Primary

Overall Response (OR) Post Transplant

Number of participants classified as achieving overall response of complete remission(CR: \< 5% blast in a bone marrow/and platelet \>100/and ANC \>1) or CR without platelet recovery (CRp: \< 5% blast in a bone marrow/and platelet \<100/and ANC \>1) or CR with insufficient hematological recovery (CRi: \< 5% blast in a bone marrow/and platelet \>100/and ANC \<1) post transplant.

Time frame: 4 months after initial treatment/3 months after transplant

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Matched Sibling Donor GroupOverall Response (OR) Post Transplant1 Participants
Haploidentical Donor GroupOverall Response (OR) Post Transplant6 Participants
Matched Unrelated Donor GroupOverall Response (OR) Post Transplant0 Participants
Primary

Treatment-Related Mortality (TRM)

Number of participants died from treatment-related death within 4 months post initial treatment/3 months post transplant.

Time frame: 4 months post initial treatment/3 months post transplant

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Matched Sibling Donor GroupTreatment-Related Mortality (TRM)0 Participants
Haploidentical Donor GroupTreatment-Related Mortality (TRM)1 Participants
Matched Unrelated Donor GroupTreatment-Related Mortality (TRM)0 Participants
Secondary

Overall Survival (OS)

Number of participants alive and disease free in 1 year post transplant.

Time frame: 1 year

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Matched Sibling Donor GroupOverall Survival (OS)0 Participants
Haploidentical Donor GroupOverall Survival (OS)1 Participants
Matched Unrelated Donor GroupOverall Survival (OS)0 Participants

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