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Acute Myeloid LeukemiaPhase 1/2NCT04764513

Safety and Efficiency of γδ T Cell Against Hematological Malignancies After Allo-HSCT

A Phase 1/2 study testing Ex-vivo expanded γδ T cell infusion in people with Acute Myeloid Leukemia and Acute Lymphoblastic Leukemia, run by Chinese PLA General Hospital at 1 site in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This study investigates the infusion safety and potential curative properties of ex-vivo expanded γδ T cells obtained from the same donor for patients who have hematological malignancies and have accepted allogeneic hematopoietic stem cell transplantation. Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
Ex-vivo expanded γδ 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 siteChina
Study dates
12 Sep 2021to Apr 2025
Phase
Phase 1/2
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 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with hematological malignancies after allogeneic hematopoietic stem cell transplantation;
  • Age criteria: 18-65 years;
  • Weight criteria: > 40kg;
  • Organ function criteria:
  • Cardiac function: Left ventricular ejection fraction (LVEF) ≥40%, Pulmonary function: Indoor oxygen saturation≥95%, Alanine aminotransferase and aspartate aminotransferase ≤ 2.5×ULN (upper limit of normal value), Total bilirubin ≤ 1.5×ULN, Serum creatinine ≤ 1.5×ULN;
  • Life expectancy of at least 4 months;
  • ECOG (Eastern Cooperative Oncology Group) score ≤ 2;
  • Patients able to understand and sign written informed consent.

Who cannot join

  • GVHD (graft versus host disease) ≥ grade Ⅱ;
  • Thrombotic microangiopathy;
  • Posttransplant lymphoproliferative disorders;
  • Uncontrolled infection or other uncontrolled medical or psychiatric disorders which may preclude patients to undergo clinical studies (discretion of the attending physician);
  • Patients with chronic diseases that require treatment with immune agents or hormones;
  • Suffering from systemic autoimmune disease or immunodeficiency disease;
Show all 13Show fewer
  • Systemic use of steroids;
  • Allergic constitution;
  • Hemorrhagic disease or coagulation disorders;
  • Patients participating in other clinical trials within 30 days prior to enrollment;
  • Patients receiving radiotherapy within 4 weeks prior to enrollment;
  • Pregnant or breastfeeding women;
  • According to the researcher's judgment, the patient has other unsuitable conditions.

Trial locations and contacts

1 site in 1 country.

Yan Wei, Master contact

+86-13146682665

13146682665@163.com

China1 site, 1 recruiting
  • Chinese PLA General Hospital

    Beijing, 100853

    Yan Wei, Master, +86-13146682665, 13146682665@163.com

    Chunji Gao, Professor, +86-13911536256, gaochunji301@163.com

    Recruiting

Other trials in China

About this study

Official title: Safety and Efficiency of γδ T Cell Against Hematological Malignancies After Allo-HSCT. A Dose Escalation, Open-label, Phase 1/2 Study.

This study investigates the infusion safety and potential curative properties of ex-vivo expanded γδ T cells obtained from the same donor for patients who have hematological malignancies and have accepted allogeneic hematopoietic stem cell transplantation.

Read the detailed description

This is a single-center, open-label, single-arm study to evaluate the safety and efficacy of ex-vivo expanded γδ T cell in patients with hematological malignancies after allogeneic hematopoietic stem cell transplantation. γδ T cell will be separated from peripheral blood of the same donors. After expansion in vitro, they will be infused to the patients as an immunotherapy treatment.

Being tested
Ex-vivo expanded γδ T cell infusion
Medical subject headings
Leukemia, Myeloid, Acute, Precursor Cell Lymphoblastic Leukemia-Lymphoma, Myelodysplastic Syndromes, Lymphoma

What participants receive

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

  • Ex-vivo expanded γδ T cell infusionBiological

    Also called Chemotherapy

    Phase 1: Patients receive ex-vivo expanded γδ T cell (Dose escalation, 3 cohorts, x5 dose increments between cohorts, 2×10^6、 1×10^7 and 5×10^7 of cells per kg of body weight).

    Phase 2: Patients receive ex-vivo expanded γδ T cell at the maximum tolerated dose determined in Phase 1.

Study groups in NCT04764513
Study groupRoleWhat they receive
Patients with hematological malignancies after allo-HSCTExperimental1. Patients with negative minimal residual disease or stable disease: After inclusion, patients will receive or not receive chemotherapy. Subsequently, patients will be dosed with γδ T cell. 2. Patients with positive minimal residual disease but not hematologic relapse: After inclusion, patients will receive chemotherapy. Subsequently, patients will be dosed with γδ T cell. 3. Patients with hematologic relapse: After inclusion, patients will receive chemotherapy. Subsequently, patients will be dosed with γδ T cell.
Receives: Biological: Ex-vivo expanded γδ T cell infusion

What is being measured

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

  1. Incidence of Treatment-Emergent Adverse Events (AEs)[Safety]

    Safety of γδ T cell assessed by incidence of treatment-emergent adverse events (AEs) per patient graded by Common Terminology Criteria for Adverse Events (CTCAE) v5.0.

    Measured: Day 28 after completion of treatment

  2. Incidence of Dose-Limiting Toxicities (DLTs) [Tolerability]

    Tolerability of γδ T cell assessed by incidence of dose-limiting toxicities (DLTs) graded by Common Terminology Criteria for Adverse Events (CTCAE) v5.0.

    Measured: Day 28 after completion of treatment

Secondary outcomes (4)
  1. Number of patients reaching Complete Remission (CR) [Efficacy]

    Efficacy of ex-vivo expanded γδ T cell assessed by number of patients reaching Complete Remission (CR).

    Measured: 12 months post-treatment

  2. Overall Survival (OS) [Efficacy]

    Efficacy of ex-vivo expanded γδ T cell assessed by overall survival (OS) measured in months.

    Measured: 12 months post-treatment

  3. Quality of Life (QoL)

    Quality of life determined by European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire 'C30'.

    Measured: 12 months post-treatment

  4. Persistence of γδ T cell

    Persistence of γδ T cell assessed by number in peripheral blood.

    Measured: Before treatment and up to 3 months after treatment

Timeline

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

  1. First posted21 Feb 2021
  2. Study start12 Sep 2021
  3. Primary completionApr 2023 (estimated)
  4. Study completionApr 2025 (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 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
This dose escalation study will be conducted in two phases. The first phase will have 3 cohorts(Dose escalation, x5 dose increments between cohorts, 2×10\^6、 1×10\^7/kg and 5×10\^7 of cells per kg of body weight). The second phase is an expansion cohort at the maximum tolerated dose determined in the first phase.
Masking
None (open label)
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04764513
Sponsor's protocol ID
CHN-PLAGH-BT-062
Status last verified
Mar 2022
First submitted
19 Feb 2021
Last updated
28 Mar 2022
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Ex-vivo expanded γδ T cell infusion in people with Acute Myeloid Leukemia and Acute Lymphoblastic Leukemia, run by Chinese PLA General Hospital at 1 site in China.

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 8 inclusion and 13 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: status not confirmed, as of the sponsor's last update on 28 Mar 2022. 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 China. 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 combined 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.

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?

Results are not available in the source record.

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

Contact Yan Wei, Master (+86-13146682665, 13146682665@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of Treatment-Emergent Adverse Events (AEs)[Safety] (time frame: Day 28 after completion of treatment). 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 Mar 2022.

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