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Azacytidine Prior to in Vivo T-cell Depleted Allo Stem Cell Transplant for Patients With Myeloid Malignancies in CR

Epigenetic Priming With 5-Azacytidine Prior to in Vivo T-cell Depleted Allogeneic Stem Cell Transplantation for Patients With High Risk Myeloid Malignancies in Morphologic Remission

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02497404
Enrollment
40
Registered
2015-07-14
Start date
2015-02-13
Completion date
2021-06-17
Last updated
2021-09-22

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

Conditions

Leukemia, Erythroblastic, Acute, Myelodysplastic Syndromes

Brief summary

The purpose of this study is to determine whether 5-Azacytidine priming before the conditioning regimen for subjects receiving a hematopoietic stem cell transplant is an effective treatment for high risk myeloid malignancies in complete remission (CR).

Detailed description

This open label two-step phase II study is designed to determine the safety and efficacy of epigenetic priming with 5-Azacytidine immediately prior to reduced intensity conditioning for an in vivo T-cell depleted hematopoietic stem cell transplantation for high risk myeloid malignancies in complete remission (CR). Subjects will be given a five day course of subcutaneous 5-azacytidine, followed by a reduced intensity conditioning regimen of fludarabine, melphalan and total body irradiation (TBI) prior to an allogeneic hematopoietic stem cell transplantation from a related or unrelated Human Leukocyte Antigen (HLA) matched donor. The effect of 5-azacytidine on global gene methylation will be assessed. Evaluations for safety, in particular for graft failure, transplant related mortality and acute graft versus host disease will be made on a weekly basis. Efficacy, as defined by disease free survival, will be evaluated with a bone marrow biopsy at the standard time points, which are one-, three-, six-, and twelve-months after transplant and upon clinical suspicion within regular follow-up visits - weekly for the first 3 months, then biweekly for 3 months, then monthly until one-year post-stem cell transplant. Thereafter, unless otherwise dictated by the clinical scenario, the follow up visits will be every 3 months.

Interventions

Patients will be given a five day course of subcutaneous 5-azacytidine followed by a reduced intensity conditioning regimen of fludarabine and melphalan with or without total body irradiation prior to an allogeneic hematopoietic stem cell transplantation from a related or unrelated HLA matched donor. 5-Azacytidine 75 mg/m2 subcutaneously daily at the same time on days -11, -10, -9, -8 and -7. This will be administered on an outpatient basis if possible.

DRUGFludarabine

Conditioning regimen: Hospital admission will usually take place on the first day of the conditioning regimen. Fludarabine will be given at 40 mg/m2 intravenously daily at the same time over 30 minutes on days -6,-5,-4,-3.

DRUGMelphalan

Conditioning regimen: Hospital admission will usually take place on the first day of the conditioning regimen. Melphalan will be given at 140 mg/m2 IV on day -3.

DRUGAlemtuzumab

Conditioning regimen: Hospital admission will usually take place on the first day of the conditioning regimen. Alemtuzumab will be given at 30 mg subcutaneously on Days -4 and -2 for unrelated donors, and Day -2 for related donors.

RADIATIONTotal Body Irradiation

Conditioning regimen: Hospital admission will usually take place on the first day of the conditioning regimen. Total Body Irradiation (TBI) will be given at 2 doses of 200 cGy each on one day of the conditioning regimen (between days -6 and -3).

Sponsors

Weill Medical College of Cornell University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients must have histologically or cytologically confirmed acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) as specified below: 1. Acute myeloid leukemia with poor risk cytogenetics in complete morphologic remission. These include: del (5q)/-5, del (7q)/-7, abn 3q, 9q, 11q, 20q, 21q, 17p, t(6;9), t(9;22) or complex karyotypes (≥ 3 unrelated abnormalities); or 2. Acute myeloid leukemia with either Flt-3, TET-2, p53, DNMT3A, or ASXL1 mutation, mutations of genes involved in the chromatin/spliceosome category (EZH2, SRSF2, U2AF1, ZRSR2), BCOR, and RUNX1, as well as MLL rearrangement, EVI1 overexpression in complete morphologic remission; or 3. Acute myeloid leukemia with a white blood cell count of greater than or equal to 50,000/mcL at presentation in first complete morphologic remission; or 4. Acute myeloid leukemia in first complete morphologic remission, having required more than one course of induction chemotherapy to attain remission status; or 5. Acute myeloid leukemia, all types, excluding M3 (Promyelocytic leukemia) in second or higher complete morphologic remission; or 6. Myelodysplastic syndromes (intermediate-2, high risk and chronic myelomonocytic leukemia (CMML) with bone marrow blasts \<5%); or 7. Secondary acute myeloid leukemia on the basis of prior MDS or prior myeloproliferative neoplasm (MPN) in complete morphologic remission * Life expectancy not severely limited by concomitant disease * Karnofsky Performance Score greater than or equal to 70%. * Adequate organ function as defined below: Serum Bilirubin:\<2.0 mg/dL; Alanine Aminotransferase (ALT) (SGPT): \<3 x upper limit of normal; Creatinine Clearance:\>60 mL/min (eGFR as estimated by the modified Modification of Diet in Renal Disease Study (MDRD) equation) \- Ability to understand and the willingness to sign a written informed consent document.

Exclusion criteria

* Evidence of chronic active hepatitis or cirrhosis * HIV infection * Uncontrolled illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements. * Pregnant and lactating women are excluded from the study because the risks to an unborn fetus or potential risks in nursing infants are unknown. * There are no prior therapies or concomitant medications that would render the patients ineligible

Design outcomes

Primary

MeasureTime frameDescription
Disease Free Survival at 1 Year Post-transplant1 year post-transplantNumber of participants without evidence of progression of underlying malignancy for which the transplant was performed, assessed at 1 year post-transplant.

Secondary

MeasureTime frameDescription
Disease Free Survival at 2 Years Post-transplant2 years post-transplantNumber of participants without evidence of progression of underlying malignancy for which the transplant was performed, assessed at 2 years post-transplant.
Overall Survival at 6 Months Post-transplant6 months post-transplantNumber of participants alive at 6 months post-transplant
Overall Survival at 1 Year Post-Transplant1 year post-transplantNumber of participants alive at 1 year post-transplant
Disease Free Survival at 6 Months Post-transplant6 months post-transplantNumber of participants without evidence of progression of underlying malignancy for which the transplant was performed, assessed at 6 months post-transplant
Graft Failure21 days post-transplantNumber of patients who experience graft failure, defined as the absence of neutrophil engraftment by Day +21 or a drop in the absolute neutrophil count to \<0.3 cells/microL for five consecutive days occurring after initial neutrophil engraftment within the first 3 weeks post-transplantation.
Acute Graft-versus-Host Disease (GVHD)2 years post-transplantNumber of patients who develop acute graft-versus-host disease of any grade.
High-Risk Extensive Chronic Graft-versus-Host-Disease2 years post-transplantNumber of patients who develop high-risk extensive chronic graft-versus-host disease. Extensive chronic GVHD is defined as generalized skin or multiple organ involvement. High risk chronic GVHD is defined as platelet count of less than 100k/microL
Overall Survival at 2 Years Post-Transplant2 years post-transplantNumber of participants alive at 2 years post-transplant

Countries

United States

Participant flow

Participants by arm

ArmCount
5 Azacytidine
Patients will be given a five day course of subcutaneous 5-azacytidine, followed by a reduced intensity conditioning regimen of fludarabine and melphalan with or without total body irradiation (TBI) prior to an allogeneic hematopoietic stem cell transplantation from a related or unrelated HLA matched donor. 5-Azacytidine: Patients will be given a five day course of subcutaneous 5-Azacytidine followed by a reduced intensity conditioning regimen of fludarabine and melphalan with or without total body irradiation prior to an allogeneic hematopoietic stem cell transplantation from a related or unrelated HLA matched donor. AZA 75 mg/m2 subcutaneously daily at the same time on days -11, -10, -9, -8 and -7. This will be administered on an outpatient basis if possible. Fludarabine (conditioning regimen): Fludarabine will be given at 40 mg/m2 intravenously daily at the same time over 30 minutes on days -6,-5,-4,-3. Melphalan (conditioning regimen): Melphalan will be given at 140 mg/m2 IV on day -3. Alemtuzumab (conditioning regimen): Alemtuzumab will be given at 30 mg subcutaneously on Days -4 and -2 for unrelated donors, and Day -2 for related donors. TBI (conditioning regimen): TBI will be given at 2 doses of 200 cGy each on one day of the conditioning regimen (between days -6 and -3).
40
Total40

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event1

Baseline characteristics

Characteristic5 Azacytidine
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
12 Participants
Age, Categorical
Between 18 and 65 years
28 Participants
Disease
Acute Myeloid Leukemia
34 Participants
Disease
Myelodysplastic Syndrome/Myeloproliferative Disease
6 Participants
Donor Relationship
Matched Related Donor
17 Participants
Donor Relationship
Matched Unrelated Donor
22 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
36 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
3 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
White
35 Participants
Region of Enrollment
United States
40 participants
Sex: Female, Male
Female
21 Participants
Sex: Female, Male
Male
19 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
28 / 40
other
Total, other adverse events
38 / 40
serious
Total, serious adverse events
28 / 40

Outcome results

Primary

Disease Free Survival at 1 Year Post-transplant

Number of participants without evidence of progression of underlying malignancy for which the transplant was performed, assessed at 1 year post-transplant.

Time frame: 1 year post-transplant

Population: 1 participant was unevaluable as they were removed from study before undergoing hematopoietic stem cell transplant.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5 AzacytidineDisease Free Survival at 1 Year Post-transplant18 Participants
95% CI: [30.1, 62.8]
Secondary

Acute Graft-versus-Host Disease (GVHD)

Number of patients who develop acute graft-versus-host disease of any grade.

Time frame: 2 years post-transplant

Population: 1 participant was unevaluable as they were removed from study before undergoing hematopoietic stem cell transplant.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5 AzacytidineAcute Graft-versus-Host Disease (GVHD)13 Participants
95% CI: [19.1, 50.2]
Secondary

Disease Free Survival at 2 Years Post-transplant

Number of participants without evidence of progression of underlying malignancy for which the transplant was performed, assessed at 2 years post-transplant.

Time frame: 2 years post-transplant

Population: 1 participant was unevaluable as they were removed from study before undergoing hematopoietic stem cell transplant.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5 AzacytidineDisease Free Survival at 2 Years Post-transplant13 Participants
95% CI: [19.1, 50.2]
Secondary

Disease Free Survival at 6 Months Post-transplant

Number of participants without evidence of progression of underlying malignancy for which the transplant was performed, assessed at 6 months post-transplant

Time frame: 6 months post-transplant

Population: 1 participant was unevaluable as they were removed from study before undergoing hematopoietic stem cell transplant.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5 AzacytidineDisease Free Survival at 6 Months Post-transplant25 Participants
95% CI: [47.2, 78.8]
Secondary

Graft Failure

Number of patients who experience graft failure, defined as the absence of neutrophil engraftment by Day +21 or a drop in the absolute neutrophil count to \<0.3 cells/microL for five consecutive days occurring after initial neutrophil engraftment within the first 3 weeks post-transplantation.

Time frame: 21 days post-transplant

Population: 1 participant was unevaluable as they were removed from study before undergoing hematopoietic stem cell transplant.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5 AzacytidineGraft Failure1 Participants
95% CI: [0.07, 13.5]
Secondary

High-Risk Extensive Chronic Graft-versus-Host-Disease

Number of patients who develop high-risk extensive chronic graft-versus-host disease. Extensive chronic GVHD is defined as generalized skin or multiple organ involvement. High risk chronic GVHD is defined as platelet count of less than 100k/microL

Time frame: 2 years post-transplant

Population: 1 participant was unevaluable as they were removed from study before undergoing hematopoietic stem cell transplant.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5 AzacytidineHigh-Risk Extensive Chronic Graft-versus-Host-Disease2 Participants
95% CI: [0.63, 15.3]
Secondary

Overall Survival at 1 Year Post-Transplant

Number of participants alive at 1 year post-transplant

Time frame: 1 year post-transplant

Population: 1 participant was unevaluable as they were removed from study before undergoing hematopoietic stem cell transplant

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5 AzacytidineOverall Survival at 1 Year Post-Transplant25 Participants
95% CI: [47.2, 78.8]
Secondary

Overall Survival at 2 Years Post-Transplant

Number of participants alive at 2 years post-transplant

Time frame: 2 years post-transplant

Population: 1 participant was unevaluable as they were removed from study before undergoing hematopoietic stem cell transplant.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5 AzacytidineOverall Survival at 2 Years Post-Transplant15 Participants
Comparison: Clopper-Pearson (exact) 95% confidence interval provided for the survival proportion.95% CI: [23.4, 55.4]
Secondary

Overall Survival at 6 Months Post-transplant

Number of participants alive at 6 months post-transplant

Time frame: 6 months post-transplant

Population: 1 participant was unevaluable as they were removed from study before undergoing hematopoietic stem cell transplant.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
5 AzacytidineOverall Survival at 6 Months Post-transplant35 Participants
95% CI: [75.8, 97.1]

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026