AzTrials
AzTrials

Acute Myeloid LeukemiaEarly Phase 1NCT05215015

Study of Anti-CD33/CLL1 CAR-NK in Acute Myeloid Leukemia

A Early Phase 1 study testing Anti-CD33/CLL1 CAR-NK Cells in people with Acute Myeloid Leukemia, run by Wuxi People's 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 The sponsor has not verified this record for over two years, so it may be out of date.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
Search all trials

Trial summary

This is an open-label, nonrandomized, investigator-initiated clinical trial to evaluate the safety, tolerability, pharmacokinetics, and efficacy of anti-CD33/CLL1 CAR-NK cell injection in patients with acute myeloid leukemia (AML), and to determine PK parameters, maximum tolerated dose (MTD), and phase II recommended… 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?
Anti-CD33/CLL1 CAR-NK Cells
Could I receive a placebo?
No, everyone receives an active treatment
How many people
18 participants
Where
1 siteChina
Study dates
30 Nov 2020to 30 Nov 2022
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 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects should voluntarily participate in this clinical study, are fully aware of the study, have signed the Informed Consent Forms, and are willing to follow and able to complete all trial procedures.
  • Subjects who are more than 18 years old (including 18 years old), and less than 75 years old (including 75 years old);
  • Subjects who are diagnosed as AML according to the World Health Organization (WHO) 2016 diagnosis criteria, and meet any of the following:
  • Relapsed acute myeloid leukemia: after complete response (CR), there are leukemia cells in peripheral blood or blast cells in bone marrow >5% (except for other reasons such as bone marrow regeneration after consolidation chemotherapy) or extramedullary leukemia cell infiltration.
  • Refractory acute myeloid leukemia: treatment-naive subjects who have no response to the standard of care for 2 courses of treatment; subjects who are relapsed within 12 months with consolidated intensive treatment after CR; subjects who are relapsed after 12 months but have no response to the conventional chemotherapy; subjects who are relapsed twice or more; subjects who have persistent extramedullary leukemia.
  • Subjects who are positive in CD33 or CLL1 test (according to the results of the central laboratory);
Show all 17Show fewer
  • Subjects are allowed to have received ≤1 autologous HSCT;
  • Subjects whose performance status scores of the Eastern Cooperative Oncology Organization (ECOG) are≤2;
  • Subjects with the expected survival phase>3 months;
  • Organ function should meet the following criteria:
  • Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 3 times the upper limit of normal (ULN), unless these are caused by leukemia cell infiltration as determined by the investigator;
  • Total serum bilirubin ≤ 1.5 times the upper limit of normal (ULN);
  • Glomerular filtration rate (GFR)>50 mL/min;
  • Left ventricular ejection fraction (LVEF)≥50%, no clinically significant pericardial effusion confirmed by echocardiography;
  • Blood oxygen saturation under indoor ventilation in the screening phase>92%;
  • Female subjects of childbearing age must be negative in the pregnancy test results in the screening phase;
  • Male and female subjects of childbearing age must agree to take effective birth controls after signing the informed consent forms, during the study, and within 6 months after the last administration.

Who cannot join

  • Subjects who are known to have acute promyelocytic leukemia;
  • Subjects who suffer from or are suspected of suffering from central nervous system leukemia, or central nervous system involvement;
  • Subjects who have received allogeneic HSCT;
  • Subjects who have prior II-IV (Glucksberg criteria) acute graft versus-host disease (GvHD) or extensive chronic GvHD;
  • Subjects who have received chimeric antigen receptor cell therapy or other cell therapy;
  • Subjects who have received anti-tumor therapy in the early stage but are not recovered in the toxicity (according to NCI-CTCAE 5.0, the toxicity has not recovered to ≤ Grade 1, except for fatigue, anorexia, and alopecia);
Show all 23Show fewer
  • Subjects who have had other malignant tumors within 5 years before inclusion, except for any type of carcinoma in situ that has been cured in the past and cured skin basal cell carcinoma or skin squamous cell carcinoma;
  • Subjects whose cardiac function and disease meet one of the following conditions within 6 months before the first administration:
  • Any risk factors that increase QTcF (Fridericia formula) interval prolongation, such as uncorrectable hypokalemia, hereditary long QT syndrome, and use of drugs that prolong the QTcF interval;
  • New York Heart Association (NYHA) classification ≥Grade 3;
  • QTcF interval prolongation (male>450 milliseconds; female>470 milliseconds);
  • Unstable angina pectoris, and myocardial infarction;
  • Subjects who have a history of autoimmune diseases (such as Crohn's disease, rheumatoid arthritis, systemic lupus erythematosus, etc.) that require systemic immunosuppressive/systemic disease modulating drugs within 2 years before the first administration;
  • Subjects who have active systemic fungal, bacterial or viral infections that are uncontrolled or are required to be treated by intravenous administration;
  • Subjects with human immunodeficiency virus (HIV) antibody positive;
  • Subjects with HBsAg (-) and HBcAb (-). If subjects have HBsAg (+) and/or HBcAb (+), then subjects with HBV-DNA below the local lower limit of quantification can be included;
  • Subjects with hepatitis C virus antibody (-). If subjects have hepatitis C virus antibody (+), then subjects with HCV-RNA (-) can be included;
  • Female subjects who are breastfeeding and unwilling to stop breastfeeding;
  • Subjects who have received major surgery (for the definition of major surgery, refer to the Level 3 and 4 surgeries specified in the Administrative Measures for the Clinical Application of Medical Technology) within 28 days before the first administration.
  • Subjects who have received a solid organ transplant;
  • Subjects who have a history of alcohol, drug use or drug abuse;
  • Subjects who are known to be allergic to the study drug and/or main components and/or any excipients of the study drug;
  • Subjects who have other severe, acute, or chronic diseases or laboratory abnormalities that may increase the risk of participating in the study and receiving the study drug, or may interfere with the interpretation of study results.

Trial locations and contacts

1 site in 1 country.

Xin Zhou, MD contact

+8613358111962

13625653@qq.com

Peihua Lu, MD contact

+8613583991399

lyzlyylxm@163.com

China1 site, 1 recruiting
  • Wuxi People's Hospital

    Wuxi, Jiangsu

    Peihua Lu, MD, +8613583991399, lyzlyylxm@163.com

    Recruiting

Other trials in China

About this study

Official title: Clinical Study of Conjugated Antibody Redirecting Natural Killer (CAR-NK) Cells Targeting CD33 and CLL1 in Patients With Acute Myeloid Leukemia

This is an open-label, nonrandomized, investigator-initiated clinical trial to evaluate the safety, tolerability, pharmacokinetics, and efficacy of anti-CD33/CLL1 CAR-NK cell injection in patients with acute myeloid leukemia (AML), and to determine PK parameters, maximum tolerated dose (MTD), and phase II recommended dose (RP2D) for subjects receiving CAR-NK cell injection.

Read the detailed description

The treatment cycle in this study is 28 days. The administration of CAR-NK cells will be performed on day 1 and day 3 of each cycle. Subjects will be treated continuously until the criteria for termination of treatment are met. In this study, the dose escalation design is adopted. The first administration dose in the first cycle is 2.0×10^9 cells. If no adverse events were observed, the second administration dose in the first cycle would be 3.0×10^9 cells, and each administration dose in the second cycle and thereafter would be 3.0×10^9 cells.

Being tested
Anti-CD33/CLL1 CAR-NK Cells
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.

  • Anti-CD33/CLL1 CAR-NK CellsBiological

    The administration of CAR-NK cells will be performed on day 1 and day 3 of each cycle (28 days). The first administration dose in the first cycle is 2.0×10^9 cells. If no adverse events were observed, the second administration dose in the first cycle would be 3.0×10^9 cells, and each administration dose in the second cycle and thereafter would be 3.0×10^9 cells.

Study groups in NCT05215015
Study groupRoleWhat they receive
Anti-CD33/CLL1 CAR-NK CellsExperimentalThe administration of CAR-NK cells will be performed on day 1 and day 3 of each cycle (28 days). The first administration dose in the first cycle is 2.0×10^9 cells. If no adverse events were observed, the second administration dose in the first cycle would be 3.0×10^9 cells, and each administration dose in the second cycle and thereafter would be 3.0×10^9 cells.
Receives: Biological: Anti-CD33/CLL1 CAR-NK Cells

What is being measured

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

  1. Incidence of dose limiting toxicity (DLT)

    To evaluate the safety and tolerability of Anti-CD33/CLL1 CAR-NK cells

    Measured: 28 days after initial infusion

Secondary outcomes (8)
  1. Overall survival (OS)

    To evaluate the effectivity of anti-CD33/CLL1 CAR-NK cells

    Measured: Up to 1 year after infusion

  2. Minimal residual disease (MRD)

    To evaluate the effectivity of anti-CD33/CLL1 CAR-NK cells

    Measured: Up to 1 year after infusion

  3. Objective response rate (ORR)

    To evaluate the effectivity of anti-CD33/CLL1 CAR-NK cells

    Measured: Up to 1 year after infusion

  4. Duration of overall response (DOR)

    To evaluate the effectivity of anti-CD33/CLL1 CAR-NK cells

    Measured: Up to 1 year after infusion

  5. Plasma concentration of CAR-NK cells

    Blood samples will be collected at specified time points to detect the number of CAR-NK cells in peripheral blood and to evaluate the PK parameters

    Measured: One month after the last infusion

  6. Cytokine release

    Blood samples will be collected at specified time points to detect the cytokine (IL-6, TNF-α, IL-1ra, IL-10, IL-2, etc.) concentration (pg/mL)

    Measured: One month after the last infusion

  7. Adverse Events (AEs)

    The incidence and severity of adverse events assessed according to Common Terminology Criteria for Adverse Events (NCI-CTCAE) v5.0, and the correlation between adverse events and CAR-NK cells

    Measured: From day 1 to day 90 after the last infusion

  8. Percentage of subjects receiving hematopoietic stem cell transplantation (HSCT)

    To explore HSCT in subjects receiving CAR-NK cell therapy.

    Measured: Up to 1 year after infusion

Timeline

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

  1. First posted31 Jan 2022
  2. Study start30 Nov 2020
  3. Primary completion30 Nov 2022 (estimated)
  4. Study completion30 Nov 2022 (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
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
18 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05215015
Sponsor's protocol ID
IBR733-T01
Other IDs
WX-IBR-7
Status last verified
Jan 2022
First submitted
18 Jan 2022
Last updated
31 Jan 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Anti-CD33/CLL1 CAR-NK Cells in people with Acute Myeloid Leukemia, run by Wuxi People's 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 17 inclusion and 23 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 31 Jan 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 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?

Results are not available in the source record.

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

Contact Xin Zhou, MD (+8613358111962, 13625653@qq.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of dose limiting toxicity (DLT) (time frame: 28 days after initial infusion). 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 31 Jan 2022.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in