Acute Myeloid LeukemiaPhase 1NCT05015426
Gamma Delta T-cell Infusion for AML at High Risk of Relapse After Allo HCT
A Phase 1 study testing Gamma Delta T-Cell Infusion in people with Acute Myeloid Leukemia, run by H. Lee Moffitt Cancer Center and Research Institute at 1 site in United States.
Trial summary
The purposes of the study are to determine the maximum tolerated dose (MTD) and effectiveness of Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells administered as a single infusion after an allogeneic hematopoietic cell transplant (alloHCT) to treat patients with Acute Myeloid Leukemia (AML). Read more about this study
- Who is it for?
- Ages 18 to 75 years
- Conditions the study is for
- Acute Myeloid Leukemia
- What is being tested?
- Gamma Delta T-Cell Infusion
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 20 participants
- Where
- 1 siteUnited States
- Study dates
- 21 Mar 2022to Sep 2027
- Phase
- Phase 1
- Are there results?
- Not yet: the study is under way
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 to 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Male or female, aged between 18 and 75 years of age undergoing allogeneic hematopoietic stem cell transplantation (alloHCT) or the treatment ELN 2017 adverse risk AML
- Have < 5% blasts in bone marrow by morphology at the time of transplantation. Patients with pre-alloHCT or post-alloHCT flow cytometric or molecular evidence of MRD are allowed
- Karnofsky performance status (KPS) ≥ 70% during the study screening.
- Free of symptomatic congestive heart failure or uncontrolled arrhythmia
- Adequate organ function as defined per protocol
- Negative serum pregnancy test
Show all 10Show fewer
- Note: Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control or abstinence) prior to study entry and for at least 30 days following study treatment (T-cell infusion); should a woman subject or female partner of a male subject become pregnant or suspect that she is pregnant while participating on the trial, she should inform her treating physician immediately.
- Provision of signed and dated informed consent form
- Stated willingness to comply with all study procedures and availability for the duration of the study.
- Agreement to adhere to Lifestyle Considerations throughout study duration
Who cannot join
- Current use of concomitant systemic glucocorticoid at the time of γδ T-cell infusion for any reason will not be allowed in order to avoid their immunosuppressive effects on γδ T-cell function.
- Active grade II-IV acute GVHD (patients with prior GVHD should be off prednisone for at least 14 days prior to infusion of the study cell product).
- Uncontrolled serious infection.
- Morphologic relapse of leukemia at any timepoint after HCT.
- Active central nervous system malignancy.
- Pregnancy or lactation.
- Treatment with another investigational drug or other intervention within 14 days of T-cell infusion
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Phase 1/1b Trial of Donor γδ T--Cell Infusion for Treatment of Patients With Acute Myeloid Leukemia at High Risk of Relapse After Allogeneic Hematopoietic Stem Cell Transplantation
The purposes of the study are to determine the maximum tolerated dose (MTD) and effectiveness of Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells administered as a single infusion after an allogeneic hematopoietic cell transplant (alloHCT) to treat patients with Acute Myeloid Leukemia (AML).
- Conditions
- Acute Myeloid Leukemia
- Being tested
- Gamma Delta T-Cell Infusion
- Keywords
- AML
- 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.
Gamma Delta T-Cell InfusionBiological
Donor cells will be processed in a laboratory, where T-cell subtype called γδ (gamma delta) T-cells will be isolated and expanded in number. These T-cells expanded in a laboratory will be infused in participants who are otherwise at high risk of AML recurrence after alloHCT.
| Study group | Role | What they receive |
|---|---|---|
| Dose Level -1 | Experimental | Dose Level -1 may be used as a de-escalation dose level due to Dose Limiting Toxicities (DLTs) from Dose Level 1
Participants will receive 1.0 x 106 cells/kg (0.75-1.25 x 106 cells/kg) Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells administered as a single infusion Receives: Biological: Gamma Delta T-Cell Infusion |
| Dose Level 1 | Experimental | Participants will receive 5.0 x 106 cells/kg (3.75-6.25 x 106 cells/kg) Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells administered as a single infusion Receives: Biological: Gamma Delta T-Cell Infusion |
| Dose Level 2 | Experimental | Participants will receive 2.5 x 107 cells/kg (1.875-3.125 x 107 cells/kg) Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells administered as a single infusion Receives: Biological: Gamma Delta T-Cell Infusion |
| Dose Level 3 | Experimental | Participants will receive 1.0 x 108 cells/kg (0.75-1.25 x 108 cells/kg) Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells administered as a single infusion Receives: Biological: Gamma Delta T-Cell Infusion |
| Treatment at Maximum Tolerated Dose | Experimental | Participants will receive Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells at the dose determined to be the Maximum Tolerated Dose, administered as a single infusion Receives: Biological: Gamma Delta T-Cell Infusion |
What is being measured
The primary outcome is the main question the study is designed to answer.
Maximum Tolerated Dose
Maximum Tolerated Dose will be determined by testing increasing doses of AAPC-expanded donor γδ T-cells.
Measured: Up to 12 months
Dose Expansion: Leukemia Free Survival
Leukemia-free survival is defined as the time from the date of start of treatment to the date of relapse of AML or death from any cause
Measured: Up to 12 months
Secondary outcomes (2)
Number of Participants with Graft Versus Host Disease (GVHD)
Number of participants with grade II-IV and III-IV acute GVHD within 6 weeks after infusion of Gamma T cells
Measured: at 6 weeks
Overall Survival (OS)
The length of time from start of treatment to death by any cause.
Measured: Up to 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Aug 2021
- Study start21 Mar 2022
- Primary completion30 Aug 2025
- Study completionSep 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Acute Myeloid LeukemiaStudies of the same condition, open and under way.
- More trials run by H. Lee Moffitt Cancer Center and Research InstituteThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 1
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Sequential
- Masking
- None (open label)
- Enrolment
- 20 participants (actual)
Sponsor and investigators
- Sponsor type
- University, hospital or other
- Collaborators
- Florida Department of Health
- Responsible party
- Sponsor
- Investigators
- Nelli Bejanyan, MD, Principal investigator, Moffitt Cancer Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05015426
- Sponsor's protocol ID
- MCC-20305
- Other IDs
- 9BC08
- Status last verified
- Sep 2026
- First submitted
- 16 Aug 2021
- Last updated
- 28 Sep 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 28 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase 1/1b Trial of Donor γδ T--Cell Infusion for Treatment of Patients With Acute Myeloid Leukemia at High Risk of Relapse After Allogeneic Hematopoietic Stem Cell Transplantation
- ClinicalTrials.gov ID
- NCT05015426
- Acronym / sponsor ID
- MCC-20305
- Conditions
- Acute Myeloid Leukemia
- Keywords
- AML
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 20 participants (actual)
- Lead sponsor
- H. Lee Moffitt Cancer Center and Research InstituteUniversity, hospital or other
- Collaborators
- Florida Department of Health
- Study start
- 21 Mar 2022 (actual)
- Primary completion
- 30 Aug 2025 (actual)
- Study completion
- Sep 2027 (estimated)
- First posted
- 20 Aug 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purposes of the study are to determine the maximum tolerated dose (MTD) and effectiveness of Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells administered as a single infusion after an allogeneic hematopoietic cell transplant (alloHCT) to treat patients with Acute Myeloid Leukemia (AML).
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Sequential
- Masking
- None (open label)
- Number of arms
- 5
| Arm | Type | Receives |
|---|---|---|
| Dose Level -1 | Experimental | Biological: Gamma Delta T-Cell InfusionDose Level -1 may be used as a de-escalation dose level due to Dose Limiting Toxicities (DLTs) from Dose Level 1 Participants will receive 1.0 x 106 cells/kg (0.75-1.25 x 106 cells/kg) Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells administered as a single infusion |
| Dose Level 1 | Experimental | Biological: Gamma Delta T-Cell InfusionParticipants will receive 5.0 x 106 cells/kg (3.75-6.25 x 106 cells/kg) Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells administered as a single infusion |
| Dose Level 2 | Experimental | Biological: Gamma Delta T-Cell InfusionParticipants will receive 2.5 x 107 cells/kg (1.875-3.125 x 107 cells/kg) Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells administered as a single infusion |
| Dose Level 3 | Experimental | Biological: Gamma Delta T-Cell InfusionParticipants will receive 1.0 x 108 cells/kg (0.75-1.25 x 108 cells/kg) Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells administered as a single infusion |
| Treatment at Maximum Tolerated Dose | Experimental | Biological: Gamma Delta T-Cell InfusionParticipants will receive Artificial Antigen Presenting Cell (AAPC)-expanded donor T-cells at the dose determined to be the Maximum Tolerated Dose, administered as a single infusion |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (10 listed)
- Male or female, aged between 18 and 75 years of age undergoing allogeneic hematopoietic stem cell transplantation (alloHCT) or the treatment ELN 2017 adverse risk AML
- Have < 5% blasts in bone marrow by morphology at the time of transplantation. Patients with pre-alloHCT or post-alloHCT flow cytometric or molecular evidence of MRD are allowed
- Karnofsky performance status (KPS) ≥ 70% during the study screening.
- Free of symptomatic congestive heart failure or uncontrolled arrhythmia
- Adequate organ function as defined per protocol
Key exclusion criteria (7 listed)
- Current use of concomitant systemic glucocorticoid at the time of γδ T-cell infusion for any reason will not be allowed in order to avoid their immunosuppressive effects on γδ T-cell function.
- Active grade II-IV acute GVHD (patients with prior GVHD should be off prednisone for at least 14 days prior to infusion of the study cell product).
- Uncontrolled serious infection.
- Morphologic relapse of leukemia at any timepoint after HCT.
- Active central nervous system malignancy.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Gamma Delta T-Cell InfusionDonor cells will be processed in a laboratory, where T-cell subtype called γδ (gamma delta) T-cells will be isolated and expanded in number. These T-cells expanded in a laboratory will be infused in participants who are otherwise at high risk of AML recurrence after alloHCT. | Biological | Dose Level -1, Dose Level 1, Dose Level 2, Dose Level 3, Treatment at Maximum Tolerated Dose |
Primary outcome
Maximum Tolerated Dose
Time frame: Up to 12 months
Maximum Tolerated Dose will be determined by testing increasing doses of AAPC-expanded donor γδ T-cells.
Dose Expansion: Leukemia Free Survival
Time frame: Up to 12 months
Leukemia-free survival is defined as the time from the date of start of treatment to the date of relapse of AML or death from any cause
2 secondary outcomes
Number of Participants with Graft Versus Host Disease (GVHD)
Time frame: at 6 weeks
Overall Survival (OS)
Time frame: Up to 12 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Sep 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Nelli Bejanyan, MD principal investigator
Moffitt Cancer Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Gamma Delta T-Cell Infusion in people with Acute Myeloid Leukemia, run by H. Lee Moffitt Cancer Center and Research Institute 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 7 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: under way, not looking for participants, as of the sponsor's last update on 28 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
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?
Maximum Tolerated Dose (time frame: Up to 12 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 28 Sep 2026.