Skip to content

Intensity-Modulated Radiation Therapy, Etoposide, and Cyclophosphamide Followed By Donor Stem Cell Transplant in Treating Patients With Relapsed or Refractory Acute Lymphoblastic Leukemia or Acute Myeloid Leukemia

Phase I-II Study of Escalating Doses of Large Field Image-Guided Intensity Modulated Radiation Therapy (IMRT) Using Helical Tomotherapy in Combination With Etoposide (VP16) and Cytoxan as a Preparative Regimen for Allogeneic Hematopoietic Stem Cell (HSC) Transplantation for Patients With Poor Risk Acute Lymphocytic Leukemia (ALL) or Poor Risk Acute Myelogenous Leukemia (AML)

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00576979
Enrollment
51
Registered
2007-12-19
Start date
2008-03-04
Completion date
2026-01-07
Last updated
2026-03-24

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

Conditions

Leukemia

Keywords

recurrent adult acute lymphoblastic leukemia, recurrent childhood acute lymphoblastic leukemia

Brief summary

RATIONALE: Giving intensity modulated radiation therapy (IMRT) and chemotherapy, such as etoposide and cyclophosphamide, before a donor stem cell transplant helps stop the growth of cancer 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 IMRT together with chemotherapy before transplant may stop this from happening. PURPOSE: This phase I/II trial is studying the side effects and best dose of intensity-modulated radiation therapy (IMRT) when given together with etoposide and cyclophosphamide followed by donor stem cell transplant and to see how well they work in treating patients with relapsed or refractory acute lymphoblastic leukemia (ALL) or acute myeloid leukemia (AML).

Detailed description

OBJECTIVES: I. To establish the maximum tolerated dose \[MTD\] of large field image-guided IMRT, using helical tomotherapy when given in combination with intravenous cyclophosphamide and VP-16 as a preparative regimen for allogeneic hematopoietic stem cell transplantation (HSCT) from an human leukocyte antigen (HLA)-identical sibling or unrelated donor in patients with ALL or AML with induction failure or in relapse. (Phase I) II. To describe the toxicity at each dose level standard. (Phase I) III. To collect data on the radiation dose to normal organs and bone marrow using tomotherapy targeted total-body irradiation (TBI). (Phase I) IV. To estimate the overall survival probability, disease free survival probability and relapse rate associated with this regimen. (Phase II) V. To characterize the treatment related mortality and toxicity profile (early/late) associated with this regimen. (Phase II) VI. To descriptively compare the outcomes of patients treated on this protocol to a comparable patient population conditioned with whole body radiation. (Phase II) OUTLINE: This is a phase I, dose-escalation study of intensity-modulated radiation therapy (IMRT) followed by a phase II study. PREPARATIVE REGIMEN: Patients undergo IMRT using helical tomotherapy once or twice daily on days -10 to -6 or -10 to -7. Patients also receive etoposide intravenously (IV) on day -6 or -5 and cyclophosphamide IV on day -4 or -3. TRANSPLANTATION: Patients undergo allogeneic peripheral blood stem cell or bone marrow transplantation on day -1 or day 0. After completion of study treatment, patients are followed up periodically for up to 2 years.

Interventions

DRUGcyclophosphamide

Given IV

DRUGetoposide

Given IV

PROCEDUREallogeneic bone marrow transplantation

Occurs approximately 48 hours after completion of cyclophosphamide

PROCEDUREallogeneic hematopoietic stem cell transplantation

Occurs approximately 48 hours after completion of cyclophosphamide

PROCEDUREperipheral blood stem cell transplantation

Occurs approximately 48 hours after completion of cyclophosphamide

RADIATIONintensity-modulated radiation therapy

Undergo IMRT

RADIATIONtomotherapy

Undergo IMRT using helical tomotherapy

Sponsors

City of Hope Medical Center
Lead SponsorOTHER
National Cancer Institute (NCI)
CollaboratorNIH

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
7 Years to 55 Years
Healthy volunteers
No

Inclusion criteria

* Patients with acute lymphocytic leukemia or acute myelogenous leukemia who are not in first or second remission (i.e., after failing remission induction therapy or in relapse or beyond second remission) * All candidates for this study must have a human leukocyte antigen (HLA) (A, B, C, DR) identical sibling who is willing to donate bone marrow or primed blood stem cells or a 10/10 allele matched unrelated donor; a single allele mismatch at A, B, C, DR, or DQ and a KIR mismatch at C will be allowed; all ABO blood group combinations of the donor/recipient are acceptable since even major ABO compatibilities can be dealt with by various techniques * Prior therapy with VP-16, Busulfan, and Cytoxan is allowed * A cardiac evaluation with an electrocardiogram showing no ischemic changes or abnormal rhythm and an ejection fraction of \>= 50% established by multi gated acquisition scan (MUGA) or echocardiogram * Patients must have a serum creatinine of less than or equal to 1.2 or creatinine clearance \> 80 ml/min * A bilirubin of less than or equal to 1.5 * Serum glutamic oxaloacetic transaminase (SGOT) less than 5 times the upper limit of normal * Serum glutamate pyruvate transaminase (SGPT) less than 5 times the upper limit of normal * Pulmonary functioning tests including diffusing capacity of carbon monoxide (DLCO) will be performed; forced expiratory volume in one second (FEV1) and DLCO should be greater than 50% of the predicted normal value * The time from the end last induction or reinduction attempt should be \>= 14 days * Signed informed consent form approved by the Institutional Review Board (IRB) is required DONOR: Any sibling donors who are histocompatible with the prospective recipient will be considered a suitable donor * Donors will be excluded if for psychological or medical reasons they are unable to tolerate the procedure * Donor should be able to donate peripheral blood stem cells or bone marrow

Exclusion criteria

* Prior radiation therapy that would exclude the use of total-body irradiation * Patients who have undergone bone marrow transplantation previously and who have relapsed * Patients with psychological or medical condition that patients physician deems unacceptable to proceed to allogeneic bone marrow transplant * Pregnancy * Electrocardiogram (EKG) showing ischemic changes or abnormal rhythm and/or an echocardiogram or MUGA scan showing abnormal wall motion or ejection fraction \< 50%

Design outcomes

Primary

MeasureTime frameDescription
Maximum Tolerated Dose of Intensity-modulated Radiotherapy (Phase I)30 days post transplantToxicities will be recorded using two distinct grading systems: the modified Bearman scale and the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) 3.0 scale.

Countries

United States

Contacts

STUDY_CHAIRAnthony S. Stein, MD

City of Hope Medical Center

Participant flow

Participants by arm

ArmCount
Level 1: 1200cGy
150cGy BID x Days 1-4. Total dose 1200cGy. cyclophosphamide: Given IV etoposide: Given IV allogeneic bone marrow transplantation: Occurs approximately 48 hours after completion of cyclophosphamide allogeneic hematopoietic stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide peripheral blood stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide intensity-modulated radiation therapy: Undergo IMRT tomotherapy: Undergo IMRT using helical tomotherapy
3
Level 2: 1350cGy
150cGy BID Day 1-4 then 150 cGy QD Day 5. Total dose 1350cGy. cyclophosphamide: Given IV etoposide: Given IV allogeneic bone marrow transplantation: Occurs approximately 48 hours after completion of cyclophosphamide allogeneic hematopoietic stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide peripheral blood stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide intensity-modulated radiation therapy: Undergo IMRT tomotherapy: Undergo IMRT using helical tomotherapy
3
Level 3: 1500cGy Limited Dose to Ribs, Sternum, Liver, Brain 1200cGy
150cGy BID Day 1-5. Total dose 1500cGy. cyclophosphamide: Given IV etoposide: Given IV allogeneic bone marrow transplantation: Occurs approximately 48 hours after completion of cyclophosphamide allogeneic hematopoietic stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide peripheral blood stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide intensity-modulated radiation therapy: Undergo IMRT tomotherapy: Undergo IMRT using helical tomotherapy
9
Level 4: 1500cGy Limited Dose to Liver, Brain 1200cGy
150cGy BID Day 1-5. Total dose 1500cGy. cyclophosphamide: Given IV etoposide: Given IV allogeneic bone marrow transplantation: Occurs approximately 48 hours after completion of cyclophosphamide allogeneic hematopoietic stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide peripheral blood stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide intensity-modulated radiation therapy: Undergo IMRT tomotherapy: Undergo IMRT using helical tomotherapy
6
Level 5: 1600cGy Limited Dose to Liver, Porta-hepatic, Brain 1200cGy
160cGy BID Day 1-5. Total dose 1600cGy. cyclophosphamide: Given IV etoposide: Given IV allogeneic bone marrow transplantation: Occurs approximately 48 hours after completion of cyclophosphamide allogeneic hematopoietic stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide peripheral blood stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide intensity-modulated radiation therapy: Undergo IMRT tomotherapy: Undergo IMRT using helical tomotherapy
6
Level 6: 1700cGy Limited Dose to Liver, Porta-hepatic, Brain 1200cGy
170cGy BID Day 1-5. Total dose 1700cGy. cyclophosphamide: Given IV etoposide: Given IV allogeneic bone marrow transplantation: Occurs approximately 48 hours after completion of cyclophosphamide allogeneic hematopoietic stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide peripheral blood stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide intensity-modulated radiation therapy: Undergo IMRT tomotherapy: Undergo IMRT using helical tomotherapy
6
Level 7: 1800cGy Limited Dose to Liver, Porta-hepatic, Brain 1200cGy
180cGy BID Day 1-5. Total dose 1800cGy. cyclophosphamide: Given IV etoposide: Given IV allogeneic bone marrow transplantation: Occurs approximately 48 hours after completion of cyclophosphamide allogeneic hematopoietic stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide peripheral blood stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide intensity-modulated radiation therapy: Undergo IMRT tomotherapy: Undergo IMRT using helical tomotherapy
6
Level 8: 1900cGy Limited Dose to Liver, Porta-hepatic, Brain 1200cGy
190cGy BID Day 1-5. Total dose 1900cGy. cyclophosphamide: Given IV etoposide: Given IV allogeneic bone marrow transplantation: Occurs approximately 48 hours after completion of cyclophosphamide allogeneic hematopoietic stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide peripheral blood stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide intensity-modulated radiation therapy: Undergo IMRT tomotherapy: Undergo IMRT using helical tomotherapy
6
Level 9: 2000cGy Limited Dose to Liver, Porta-hepatic, Brain 1200cGy
200cGy BID Day 1-5. Total dose 2000cGy. cyclophosphamide: Given IV etoposide: Given IV allogeneic bone marrow transplantation: Occurs approximately 48 hours after completion of cyclophosphamide allogeneic hematopoietic stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide peripheral blood stem cell transplantation: Occurs approximately 48 hours after completion of cyclophosphamide intensity-modulated radiation therapy: Undergo IMRT tomotherapy: Undergo IMRT using helical tomotherapy
6
Total51

Baseline characteristics

CharacteristicTotalLevel 9: 2000cGy Limited Dose to Liver, Porta-hepatic, Brain 1200cGyLevel 8: 1900cGy Limited Dose to Liver, Porta-hepatic, Brain 1200cGyLevel 7: 1800cGy Limited Dose to Liver, Porta-hepatic, Brain 1200cGyLevel 6: 1700cGy Limited Dose to Liver, Porta-hepatic, Brain 1200cGyLevel 5: 1600cGy Limited Dose to Liver, Porta-hepatic, Brain 1200cGyLevel 4: 1500cGy Limited Dose to Liver, Brain 1200cGyLevel 3: 1500cGy Limited Dose to Ribs, Sternum, Liver, Brain 1200cGyLevel 2: 1350cGyLevel 1: 1200cGy
Age, Categorical
<=18 years
1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
50 Participants5 Participants6 Participants6 Participants6 Participants6 Participants6 Participants9 Participants3 Participants3 Participants
Age, Continuous34.4 years39.4 years38.4 years36.5 years52.5 years37.5 years31.1 years32.7 years24.5 years34.4 years
Race/Ethnicity, Customized
Asian or Pacific Islander
10 Participants0 Participants3 Participants1 Participants1 Participants2 Participants0 Participants1 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Black, not of Hispanic origin
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Hispanic
17 Participants4 Participants2 Participants1 Participants2 Participants2 Participants3 Participants1 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Other, Unknown
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants
Race/Ethnicity, Customized
White
22 Participants2 Participants1 Participants4 Participants3 Participants2 Participants3 Participants5 Participants1 Participants1 Participants
Region of Enrollment
United States
51 participants6 participants6 participants6 participants6 participants6 participants6 participants9 participants3 participants3 participants
Sex: Female, Male
Female
31 Participants4 Participants5 Participants5 Participants2 Participants3 Participants3 Participants7 Participants1 Participants1 Participants
Sex: Female, Male
Male
20 Participants2 Participants1 Participants1 Participants4 Participants3 Participants3 Participants2 Participants2 Participants2 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
deaths
Total, all-cause mortality
0 / 30 / 31 / 90 / 60 / 60 / 60 / 60 / 60 / 6
other
Total, other adverse events
3 / 33 / 39 / 96 / 66 / 66 / 66 / 66 / 66 / 6
serious
Total, serious adverse events
0 / 30 / 31 / 93 / 60 / 60 / 61 / 60 / 61 / 6

Outcome results

Primary

Maximum Tolerated Dose of Intensity-modulated Radiotherapy (Phase I)

Toxicities will be recorded using two distinct grading systems: the modified Bearman scale and the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) 3.0 scale.

Time frame: 30 days post transplant

ArmMeasureValue (NUMBER)
All Levels: 1200 cGy to 2000cGyMaximum Tolerated Dose of Intensity-modulated Radiotherapy (Phase I)2000 cGy

Source: ClinicalTrials.gov · Data processed: Mar 25, 2026