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Updated June 2026 · ClinicalTrials.gov

RECRUITINGPhase 1INTERVENTIONAL

Natural Killer(NK) Cell Therapy Targeting CLL1 in Acute Myeloid Leukemia

Clinical Study to Evaluate the Safety and Efficacy of iPSC NK Cells Targeting CLL1 in Patients With Relapsed/Refractory AML

Natural Killer(NK) Cell Therapy Targeting CLL1 in Acute Myeloid Leukemia (NCT06027853) is a Phase 1 interventional studying AML, Adult, sponsored by Zhejiang University. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

This is a phase 1, first-in-human (FIH), open-label, multicohort study to evaluate the safety, tolerability and preliminary efficacy of CLL1 target CAR iPSC NK cells in patients with relapsed/refractory AML

What Stage of Research Is This?

Phase 1 trials test a new treatment for the first time in humans, focusing on safety, dosing, and how the body processes the drug. For AML, Adult, a Phase 1 study typically enrolls a small number of participants — often healthy volunteers or patients who have exhausted standard treatment options. Phase 1 results determine whether a treatment moves into larger Phase 2 efficacy studies.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

With a target enrollment of 24 participants, this is a small study — typical of early-phase research, rare-disease trials, or pilot studies designed to generate preliminary signal before a larger study is launched.

Who May Be Eligible (Plain English)

Who May Qualify: 1. ≥18 years old. 2. Confirmed diagnosis of r/r AML 3. CLL1 expression is positive in AML blasts. 4. Eastern Cooperative Oncology Group (ECOG) performance status ≤1 and expected to live at least 12 weeks. 5. Adequate organ and marrow function, as defined below: 1. Blood creatinine (Cr) ≤ 2 x ULN or calculated creatinine clearance (Cockcroft- Gault formula) ≥ 50 mL/min; 2. Total bilirubin (TBIL) ≤ 2 x the ULN; 3. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 3 x ULN; 4. International normalized ratio (INR) and activated partial thromboplastin time (aPTT) ≤ 1.5 x ULN 6. Females of childbearing potential must have a negative serum pregnancy test. 7. Donor specific antibody (DSA) is negative: MFI \<= 2000. 8. Provision of signed and dated willing to sign a consent form form (ICF). Who Should NOT Join This Trial: 1. Allergic to drug used in this study. 2. Subjects received any antitumor therapy as follows, prior to first NK infusion: 1. Systemic steroid therapy within 3 days (except physiological replacement therapy); 2. Systemic antitumor therapy within 2 weeks or at least 5 half-lives, whichever is less; 3. Radiotherapy within 4 weeks; 4. Donor lymphocyte infusion within 6 weeks; 5. Intrathecal treatment within 1 week; 6. CAR-T therapy, CAR-NK therapy, or any other genetically modified cell therapy product within 6 months; 3. History of allogeneic stem cell transplantation. 4. Received the vaccine within 4 weeks prior to the first infusion and/or expected to require vaccination from the study period to 12 weeks after the last infusion. 5. Active central nervous system Leukemia. 6. Acute Promyelocytic Leukemia (APL). 7. History of other malignant tumors, except for those who have achieved complete remission more than 5 years after radical treatment without any signs of recurrence. 8. Active autoimmune conditions (where your immune system attacks your own body)s. ...See full criteria on ClinicalTrials.gov Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: 1. ≥18 years old. 2. Confirmed diagnosis of r/r AML 3. CLL1 expression is positive in AML blasts. 4. Eastern Cooperative Oncology Group (ECOG) performance status ≤1 and life expectancy greater than 12 weeks. 5. Adequate organ and marrow function, as defined below: 1. Blood creatinine (Cr) ≤ 2 x ULN or calculated creatinine clearance (Cockcroft- Gault formula) ≥ 50 mL/min; 2. Total bilirubin (TBIL) ≤ 2 x the ULN; 3. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 3 x ULN; 4. International normalized ratio (INR) and activated partial thromboplastin time (aPTT) ≤ 1.5 x ULN 6. Females of childbearing potential must have a negative serum pregnancy test. 7. Donor specific antibody (DSA) is negative: MFI \<= 2000. 8. Provision of signed and dated informed consent form (ICF). Exclusion Criteria: 1. Allergic to drug used in this study. 2. Subjects received any antitumor therapy as follows, prior to first NK infusion: 1. Systemic steroid therapy within 3 days (except physiological replacement therapy); 2. Systemic antitumor therapy within 2 weeks or at least 5 half-lives, whichever is less; 3. Radiotherapy within 4 weeks; 4. Donor lymphocyte infusion within 6 weeks; 5. Intrathecal treatment within 1 week; 6. CAR-T therapy, CAR-NK therapy, or any other genetically modified cell therapy product within 6 months; 3. History of allogeneic stem cell transplantation. 4. Received the vaccine within 4 weeks prior to the first infusion and/or expected to require vaccination from the study period to 12 weeks after the last infusion. 5. Active central nervous system Leukemia. 6. Acute Promyelocytic Leukemia (APL). 7. History of other malignant tumors, except for those who have achieved complete remission more than 5 years after radical treatment without any signs of recurrence. 8. Active autoimmune diseases. 9. History of central nervous system disease or meningeal involvement such as epilepsy, paralysis, aphasia, stroke, etc. 10. Serious cardiovascular and cerebrovascular diseases: 1. Severe heart rhythm or conduction abnormalities, corrected QT interval (QTc)≥480 ms; 2. Acute coronary syndrome, congestive heart failure, aortic dissection, stroke, or other grade 3 or higher cardiovascular and cerebrovascular events within 6 months prior to first infusion; 3. New York Heart Association (NYHA) class II or above congestive heart failure or left ventricular ejection fraction (LVEF) \<50% in color Doppler echocardiography; 4. Hypertension that cannot be controlled by drug. 11. Active pulmonary infection; SpO2 ≤90%; Pulmonary embolism, chronic obstructive pulmonary disease, or interstitial lung disease. 12. Uncontrolled bacterial, fungal, or viral infection. Known HIV infection, active Hepatitis B (HBV) or Hepatitis C (HCV) infection. 13. History of substance abuse. 14. Toxicity induced by previous therapy not recovered to ≤ grade 2(NCI-CTCAE v5.0). 15. Large surgical treatment within 4 weeks prior to first infusion, not including diagnostic biopsy. 16. Pregnant/breastfeeding women. 17. Investigator-assessed presence of any medical or social issues that are likely to interfere with study conduct or may cause increased risk to subject.

Treatments Being Tested

DRUG

CLL1 CAR-NK cell injection

Drug: CLL1 NK cell therapy Drug: Cyclophosphamid Lympho-conditioning Agent Drug: Fludarabine Lympho-conditioning Agent Drug: VP-16 Lympho-conditioning Agent

Locations (1)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Clinical research ethics committee of the first affiliated hospital, college of medicine, zhejiang University
Hangzhou, Zhejiang, China

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT06027853), the sponsor (Zhejiang University), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT06027853 clinical trial studying?

This is a phase 1, first-in-human (FIH), open-label, multicohort study to evaluate the safety, tolerability and preliminary efficacy of CLL1 target CAR iPSC NK cells in patients with relapsed/refractory AML The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT06027853?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT06027853?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT06027853. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT06027853. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-06-26 · Data from ClinicalTrials.gov.