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Acute Myeloid LeukemiaPhase 2NCT02782546

Cytokine Induced Memory-like NK Cell Adoptive Therapy After Haploidentical Donor Hematopoietic Cell Transplantation

A Phase 2 study testing Graft cell infusion, Tacrolimus and Mycophenolate mofetil in people with Acute Myeloid Leukemia, run by Washington University School of Medicine at 1 site in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

This is a standard phase 2 study powered to demonstrate improvement in the 100 day leukemia free survival to 30% from <10% expected with the use of reduced intensity haplo-HCT in this extremely high-risk patient cohort (based on the institutional experience using non-myeloablative / reduced intensity conditioning in a… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Acute Myeloid Leukemia
What is being tested?
Graft cell infusion, Tacrolimus and Mycophenolate mofetil
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteUnited States
Study dates
30 Jan 2017to 13 Feb 2028
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Recipient Inclusion Criteria:

  • Refractory AML without complete remission (CR) after 2 or more cycles of induction therapy (primary induction failure), or AML relapsed after obtaining a CR and failed one or more cycles of re-induction therapy. Standard dose 10-day decitabine (20 mg/m2 daily IV x 10 days) or 7-day azacitidine (75-100 mg/m2 daily SC/IV x 7 days) will be considered as one cycle of induction therapy.
  • At least 18 years of age
  • Available HLA-haploidentical donor that meets the criteria in the protocol
  • Patients with known CNS involvement with AML are eligible provided that they have been treated and CSF is clear for at least 2 weeks prior to enrollment into the study. CNS therapy (chemotherapy or radiation) should continue as medically indicated during the study treatment.
  • Karnofsky performance status > 60 %
  • Adequate organ function as defined below:
  • Total bilirubin < 2 mg/dl
  • AST(SGOT)/ALT(SGPT) < 3.0 x IULN
  • Creatinine within normal institutional limits OR creatinine clearance > 60 mL/min/1.73 m2 by Cockcroft-Gault Formula
  • Oxygen saturation ≥90% on room air and adjusted DLCO of at least 40%
  • Ejection fraction ≥40%
  • Able to be off of corticosteroids (10 mg or less of prednisone or equivalent doses of other systemic steroids are allowed) and any other immune suppressive medications beginning on Day -3
  • Women of childbearing potential must have a negative pregnancy test within 28 days prior to study registration. Female and male patients (along with their female partners) must agree to use two forms of acceptable contraception, including one barrier method, during participation in the study and throughout the DLT evaluation period.
  • Ability to understand and willingness to sign an IRB approved written informed consent document (or that of legally authorized representative, if applicable).

Recipient Exclusion Criteria:

  • Relapsed after allogeneic transplantation.
  • Circulating blast count >30,000/uL by morphology or flow cytometry (cyto-reductive therapies including leukapheresis or hydroxyurea are allowed).
  • Uncontrolled bacterial or viral infections, or known HIV, Hepatitis B or C infection.
  • Presence of donor specific antibodies (DSA) with Mean Fluorescence Intensity (MFI) of >5000 as assessed by the single antigen bead assay, < 6 weeks prior to starting transplant conditioning
  • Uncontrolled angina, severe uncontrolled ventricular arrhythmias, or EKG suggestive of acute ischemia or active conduction system abnormalities.
  • New progressive pulmonary infiltrates on screening chest x-ray or chest CT scan that have not been evaluated with bronchoscopy. Infiltrates attributed to infection must be stable/ improving after 1 week of appropriate therapy (4 weeks for presumed or proven fungal infections)
  • Known hypersensitivity to one or more of the study agents
  • Received any investigational drugs within the 14 days prior to the first day of transplant conditioning
  • Pregnant and/or breastfeeding

Donor Inclusion Criteria:

  • Related donor (sibling, offspring, or offspring of sibling)
  • At least 18 years of age
  • HLA-haploidentical donor/recipient match by at least Class I serologic typing at the A\&B locus.
  • In general good health, and medically able to tolerate leukapheresis required for harvesting the NK cells for this study.
  • Ability to understand and willingness to sign an IRB approved written informed consent document

Donor Exclusion Criteria:

  • Positive for hepatitis, HTLV, or HIV infection
  • Pregnant and/or breastfeeding

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Washington University School of Medicine

    St Louis, Missouri, 63110

Other trials in United States

About this study

Official title: A Phase II Study of Cytokine Induced Memory-like NK Cell Adoptive Therapy After Haploidentical Donor Hematopoietic Cell Transplantation

This is a standard phase 2 study powered to demonstrate improvement in the 100 day leukemia free survival to 30% from <10% expected with the use of reduced intensity haplo-HCT in this extremely high-risk patient cohort (based on the institutional experience using non-myeloablative / reduced intensity conditioning in a similar patient cohort).

A formal safety evaluation will be done after every 6th patient enrolled and the trial will be stopped if noted to have unusually higher engraftment failure (acute GVHD rates (>60% any grades or >30% grade III/IV or ≥ 50% severe cGVHD) or engraftment failure rates (≥15%).

Being tested
Graft cell infusion, Tacrolimus, Mycophenolate mofetil, G-CSF, CIML NK cell infusion
Medical subject headings
Leukemia, Myeloid, Acute

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Graft cell infusionProcedure or surgery

    Also called HCT

    -Day 0

  • TacrolimusDrug

    Also called Prograf

    -GVHD prophylaxis

  • Mycophenolate mofetilDrug

    Also called CellCept, Myfortic

    -GVHD prophylaxis

  • G-CSFDrug

    Also called Granulocyte-colony stimulating factor

    -Continue until neutrophil engraftment as per institutional guidelines

  • CIML NK cell infusionProcedure or surgery

    -Day +7

  • ALT-803Drug

    -Start approximately 4 hours after CIML NK cell infusion

  • LeukapheresisProcedure or surgery

    -Day +6

Study groups in NCT02782546
Study groupRoleWhat they receive
RecipientExperimental* Standard of care reduced conditioning regimen on Day -1 * Graft cell infusion on Day 0 * Post-transplant cyclophosphamide on Days +3 and +4 * GvHD prophylaxis with tacrolimus and mycophenolate mofetil (MMF) will start on Day +5. MMF will continue till Day +35 and tacrolimus till Day +180 in the absence of GvHD * G-CSF will start on Day +7 and will continue until neutrophil engraftment as per institutional guidelines * The cytokine-induced memory like natural killer (CIML NK) cells will be infused on Day +7 without a filter or pump, slowly by gravity over at least 15 minutes. * ALT-803 will start approximately 4 hours after the CIML NK cell infusion. ALT-803 will be administered subcutaneously at a dose of 10 mcg/kg subcutaneously beginning Day +7 (on the day of CIML NK cell infusion) and then every 21 days for a total of 4 doses
Receives: Procedure: Graft cell infusion; Drug: Tacrolimus; Drug: Mycophenolate mofetil; Drug: G-CSF; Procedure: CIML NK cell infusion; Drug: ALT-803
DonorExperimental* Donors will receive subcutaneous G-CSF from Day -4 till Day 0 and undergo 20L apheresis per institutional guidelines. * Two consecutive days for collection are allowed in case of the target CD34+ cell dose being less than the target 4 x106/kg-bw from the first day of collection. * On Day +6 (one day before the planned CIML NK cell infusion), peripheral blood mononuclear cells will be collected by a single standard 20-L apheresis over 4-5 hours from the same haploidentical related donor that provided the HCT graft.
Receives: Procedure: Leukapheresis

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Kaplan-Meier Estimate of Leukemia-free Survival Rate (LFS)

    -LFS is defined as the time from achievement of complete remission (CR) to the time of relapse, death in remission, or last follow-up.

    Measured: 1 year post transplantation

Secondary outcomes (4)
  1. Kaplan-Meier Estimate of Leukemia-free Survival Rate (LFS)

    -LFS is defined as the time from achievement of CR to the time of relapse, death in remission, or last follow-up.

    Measured: 3 months post transplantation

  2. Kaplan-Meier Estimate of Overall Survival (OS)

    -OS is defined as the time from the date of Day 0 until death from any cause.

    Measured: 1 year post transplantation

  3. Number of Recipients With Relapse Who Are Found to be CR (Complete Remission)

    -CR: Morphologically leukemia free state (i.e. bone marrow with <5% blasts by morphologic criteria and no blasts with Auer rods, no evidence of extramedullary leukemia) and absolute neutrophil count ≥1000 /μL and platelets ≥100,000 /μL. Patient must be independent of transfusions.

    Measured: Day 28 post transplantation

  4. Complete Remission (CR) Rate

    CR: Morphologically leukemia free state (i.e. bone marrow with <5% blasts by morphologic criteria and no blasts with Auer rods, no evidence of extramedullary leukemia) and absolute neutrophil count ≥1000 /μL and platelets ≥100,000 /μL. Patient must be independent of transfusions

    Measured: Day 28 post transplantation

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 May 2016 (estimated)
  2. Study start30 Jan 2017
  3. Primary completion27 Oct 2025
  4. Study completion13 Feb 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02782546
Sponsor's protocol ID
201610088
Other IDs
1P50CA171963-01A1, 2P50CA171963-06
Status last verified
Aug 2026
First submitted
22 May 2016
Last updated
21 Sep 2026
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Berrien-Elliott MM, Foltz JA, Russler-Germain DA, Neal CC, Tran J, Gang M, Wong P, Fisk B, Cubitt CC, Marin ND, Zhou AY, Jacobs MT, Foster M, Schappe T, McClain E, Kersting-Schadek S, Desai S, Pence P, Becker-Hapak M, Eisele J, Mosior M, Marsala L, Griffith OL, Griffith M, Khan SM, Spencer DH, DiPersio JF, Romee R, Uy GL, Abboud CN, Ghobadi A, Westervelt P, Stockerl-Goldstein K, Schroeder MA, Wan F, Lie WR, Soon-Shiong P, Petti AA, Cashen AF, Fehniger TA. Hematopoietic cell transplantation donor-derived memory-like NK cells functionally persist after transfer into patients with leukemia. Sci Transl Med. 2022 Feb 23;14(633):eabm1375. doi: 10.1126/scitranslmed.abm1375. Epub 2022 Feb 23.

    PubMed 35196021

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Graft cell infusion, Tacrolimus and Mycophenolate mofetil in people with Acute Myeloid Leukemia, run by Washington University School of Medicine at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 21 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 1 Jun 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Kaplan-Meier Estimate of Leukemia-free Survival Rate (LFS) (time frame: 1 year post transplantation). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02782546, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Sep 2026.

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