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Myelodysplastic SyndromesEarly Phase 1NCT04628338

IFN-γ to Treat Acute Myeloid Leukemia (AML) and Myelodysplastic Syndrome (MDS) That Has Relapsed After Allogeneic Hematopoietic Stem Cell Transplantation

A Early Phase 1 study testing IFN-γ (interferon gamma-1b) injection in people with Myelodysplastic Syndromes and Myeloid Leukemia, run by Sawa Ito, MD at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study proposes a safe dosing regimen IFN-γ that is sufficient to stimulate IFN-γ receptors on malignant blasts in patients who developed relapsed acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) after alloSCT with no active or history of III-IV acute graft-versus-host disease (GVHD). Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
IFN-γ (interferon gamma-1b) injection
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
8 participants
Where
1 siteUnited States
Study dates
8 Mar 2021to 30 Oct 2023
Phase
Early Phase 1
Are there results?
None posted in the registry

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

Who may be able to join

  • Recipients of allogeneic stem cell transplantation for acute myeloid leukemia or myelodysplastic syndrome from a human leukocyte antigen (HLA) matched donor
  • Relapsed of primary disease with 5% to 20% of blasts in the bone marrow by flow cytometry in the bone marrow with an clear leukemia-associated immunophenotype (If the patient received therapy to treat the relapse, he or she must have 5-20% residual blasts prior to enrollment on this study)
  • Performance status KPS score >60% (ECOG 0-2)
  • No increases in systemic immunosuppression in the prior four weeks other than to maintain therapeutic levels
  • No systemic corticosteroid with a dose higher than 0.5mg/kg/day prednisone or equivalent
  • No history of grade IV acute GVHD
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  • No new systemic immunosuppressive medications in the prior two weeks initiated due to GVHD
  • Willingness to have bone marrow and peripheral blood collected as per the study protocol
  • Must be able to give informed consent
  • Age 18 or older

Who cannot join

  • Contraindication to receive IFN-γ including known hypersensitivity to interferon-gamma, E. coli derived products or any component of the product
  • Subjects with a positive pregnancy test or who are breastfeeding
  • For men or women of childing bearing potential (age < 50 without hysterectomy or oophorectomy or documented menopause), unwilling to use effective contraception for the duration of the study.
  • Primary engraftment failure
  • Active cardiac arrhythmias not controlled by medical management or current NYHA class II or higher congestive heart failure
  • Active ischemic heart disease not well controlled with medications
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  • A seizure disorder not well controlled by medications
  • Estimated GFR <30 mL/min
  • AST/SGOT or ALT/SPOT > 5 x ULN
  • Total bilirubin > 3 x ULN
  • Chemotherapy (other than hypomethylating and/or venetoclax therapy) within the prior 4 weeks
  • Body surface area at or less than 1.5 m2, or greater than 2.5 m2 so as to minimize the variation in IFN-γ exposure based on differences in BSA.
  • Patients less than 18 years old.
  • Pregnant or breastfeeding patients.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UPMC Hillman Cancer Center

    Pittsburgh, Pennsylvania, 15232

Other trials in United States

About this study

Official title: A Pilot Study of IFN-γ to Treat Acute Myeloid Leukemia (AML) and Myelodysplastic Syndrome (MDS) That Has Relapsed After Allogeneic Hematopoietic Stem Cell Transplantation

This study proposes a safe dosing regimen IFN-γ that is sufficient to stimulate IFN-γ receptors on malignant blasts in patients who developed relapsed acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) after alloSCT with no active or history of III-IV acute graft-versus-host disease (GVHD). It is hypothesized that IFN-γ will promote graft-vs-leukemia (GVL) in patients with AML/MDS that has relapsed after alloSCT.

Read the detailed description

Allogeneic hematopoietic stem cell transplantation (alloSCT) can cure patients with acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS). However, relapsed AML/MDS is the most significant single cause of treatment failure, and the majority of relapsed patients ultimately succumb. Alloreactive T cells in the donor graft can kill residual leukemia cells, mediating the graft-vs-leukemia (GVL) effect. Consistent with this, recipients of T cell-depleted grafts have higher rates of relapse. GVL is more potent against chronic leukemias than acute myeloblastic diseases, and the higher incidence of relapse in patients with AML/MDS reflects a failure in GVL.

The central goal of this pilot trial will be to explore whether IFN-γ in this setting is safe and whether it has the desired biological activities on malignant blasts in vivo. IFN-γ will be tested in relapsed patients as monotherapy and in conjunction with donor leukocyte infusions (DLI). The clinical and biological information from this study is essential to design a phase II trial with a therapeutic endpoint.

Treatment will be initiated at 100mcg (almost equal to the dose of 50 mcg/m2 for an adult) three times a week, with the potential to deescalate the frequency of injection for unacceptable toxicity. To explore whether this dosing regimen is sufficient to activate myeloblasts, pre- and post-treatment bone marrow specimens will be harvested to analyze for IFN-γ action (upregulation of HLA class I; HLA class II, ICAM-1 and phosphorylation of STAT1). The primary safety concern is the development of GVHD, which is routinely monitored for all alloSCT patients.

Being tested
IFN-γ (interferon gamma-1b) injection
Keywords
allogeneic hematopoietic stem cell transplantation, acute myeloid leukemia, myelodysplastic syndrome, graft versus host disease, AML, MDS, alloSCT, GVHD, interferon-gamma-1b, Actimmune, IFN-g, donor lymphocyte infusion
Medical subject headings
Myelodysplastic Syndromes, Leukemia, Myeloid, Leukemia, Myeloid, Acute, Graft vs Host Disease

What participants receive

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

  • IFN-γ (interferon gamma-1b) injectionDrug

    Also called ACTIMMUNE®

    Dosage form: 100 mcg (2 million International Units) per 0.5 mL solution, administered subcutaneously Dose regimen: three times weekly (Weeks 0-7), once weekly (Weeks 8-12)

Study groups in NCT04628338
Study groupRoleWhat they receive
IFN-γExperimental100mcg IFN-γ subcutaneously three times per week (Weeks 0-7), once per week (Weeks 8-12) (or per protocol guidance based on tolerability, response, or DLI infusions)
Receives: Drug: IFN-γ (interferon gamma-1b) injection

What is being measured

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

  1. Upregulation HLA l (HLA-ABC)

    Upregulation of HLA l (HLA-ABC) in bone marrow malignant blasts post-IFN-γ treatment, measured by the change in mean florescent intensity by flow cytometry.

    Measured: Up to 6 months

  2. Upregulation of HLA ll (HLA-DR/DQ)

    Upregulation of HLA ll (HLA-DR/DQ) in bone marrow malignant blasts post-IFN-γ treatment, measured by the change in mean florescent intensity by flow cytometry.

    Measured: Up to 6 months

  3. Upregulation of ICAM-1

    Upregulation of ICAM-1 in bone marrow malignant blasts post-IFN-γ treatment, measured by the change in mean florescent intensity by flow cytometry as a percentage of positive cells.

    Measured: Up to 6 months

  4. Adverse events related to IFN-γ

    Adverse events of IFN-γ in relapsed patients after alloSCT per CTCAE v5.0.

    Measured: Up to 6 months

  5. Generation of phosphorylated-STAT1

    Generation of phosphorylated-STAT1 in bone marrow malignant blasts post-IFN-γ treatment, measured by the change in mean florescent intensity by flow cytometry as a percentage of positive cells.

    Measured: Up to 6 months

Secondary outcomes (3)
  1. Malignant Blast Burden

    Change in malignant blasts number after IFN-γ therapy and subsequent donor lymphocyte infusion.

    Measured: Up to 6 months

  2. Incidence of GVHD

    Incidence of Graft Versus Host Disease (GVHD) progression or de novo GVHD after INF-g therapy and subsequent donor lymphocyte infusion.

    Measured: Up to 6 months

  3. Incidence of de novo GVHD

    Incidence of graft-versus-host disease (GVHD) progression after IFN-γ therapy and subsequent DLI.

    Measured: Up to 6 months

Timeline

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

  1. First posted13 Nov 2020
  2. Study start8 Mar 2021
  3. Primary completion30 Oct 2023
  4. Study completion30 Oct 2023

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
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
8 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04628338
Sponsor's protocol ID
HCC 20-092
Status last verified
Apr 2025
First submitted
29 Oct 2020
Last updated
29 Apr 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Ito S, Geramita E, Ventura K, Neupane B, Bhise S, Moore EM, Furlan S, Shlomchik WD. IFN-gamma and donor leukocyte infusions for relapsed myeloblastic malignancies after allogeneic hematopoietic stem cell transplantation. JCI Insight. 2025 Mar 25;10(9):e190655. doi: 10.1172/jci.insight.190655. eCollection 2025 May 8.

    PubMed 40131369

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing IFN-γ (interferon gamma-1b) injection in people with Myelodysplastic Syndromes and Myeloid Leukemia, run by Sawa Ito, MD 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?

The sponsor lists 10 inclusion and 14 exclusion criteria. 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: finished, as of the sponsor's last update on 29 Apr 2025. 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?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Upregulation HLA l (HLA-ABC) (time frame: Up to 6 months). The study lists 5 primary outcomes in all. 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 NCT04628338, 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 29 Apr 2025.

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