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OncoMatch/Clinical Trials/NCT06835140

CD123-CD16-NK Cells Immunotherapy for AML

Is NCT06835140 recruiting? Yes, currently enrolling (May 2026). This Phase 1 trial studies Donor-derived CD123-CD16 bispecific antibody-modified NK cells for aml (acute myelogenous leukemia).

Phase 1RecruitingChunji GaoNCT06835140Data as of May 2026

Treatment: Donor-derived CD123-CD16 bispecific antibody-modified NK cellsThe goal of this clinical trial is to evaluate the effectiveness of CD123-CD16 bispecific antibody-modified NK cells in treating patients with CD123-positive relapsed or refractory Acute Myeloid Leukemia (RR AML). It will also assess the safety of this modified NK cell therapy. The main questions: Does the infusion of CD123-CD16 bispecific antibody-modified NK cells induce remission in RR AML patients? What are the safety and potential adverse effects associated with the administration of these modified NK cells? Researchers will administer CD123-CD16 bispecific antibody-modified NK cells to RR AML patients and compare the outcomes to existing treatment options to determine efficacy and safety. Participants will: Undergo lymphocyte-depleting chemotherapy Fludarabine\&Cyclophosphamide from day -5 to day -3 before NK cell infusion. Receive intravenous infusions of modified NK cells at escalating doses: The first three patients will receive 1×10⁷ cells/kg. The next three patients will receive 2×10⁷ cells/kg. The final three patients will receive 4×10⁷ cells/kg. Have NK cell infusions administered every 96-120 hours for a total of three infusions, with each infusion completed within 10 to 15 minutes. Undergo dose escalation with subsequent groups only after confirming the safety of the previous dose group. Have their vital signs (temperature, heart rate, respiratory rate, blood pressure, etc.) monitored before and after each infusion. Keep baseline data records during NK cell infusions. Participate in follow-up assessments to monitor disease remission and detect any adverse events. This trial aims to provide new treatment options for RR AML patients by leveraging the targeted cytotoxic effects of CD123-CD16 bispecific antibody-modified NK cells to achieve disease remission.

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Extracted eligibility criteria

Cancer type

Acute Myeloid Leukemia

Biomarker criteria

Required: IL3RA overexpression (CD123 expression level is not less than 20%)

Flow cytometry detection shows CD123-positive AML cells. CD123 expression level is not less than 20%.

Performance status

ECOG OR KARNOFSKY 0–2

ECOG Performance Status score of 0-2 or Karnofsky Performance Status (KPS) score greater than 80

Prior therapy

Must have received: first-line clinical treatments

Has undergone multiple first-line clinical treatments and has developed resistance to current treatments. Relapse after original induction therapy failure

Cannot have received:

Persistent non-hematologic toxicity of grade 2 or higher related to previous treatments

Lab requirements

Cardiac function

NYHA classification ≥3 or uncontrolled malignant arrhythmias. Other cardiovascular and cerebrovascular diseases deemed unsuitable by the investigator.

New York Heart Association (NYHA) classification ≥3 or uncontrolled malignant arrhythmias. Other cardiovascular and cerebrovascular diseases deemed unsuitable by the investigator.

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