CD33 CAR-NK Cells for AML

(CD33 CAR NK Trial)

CP
Overseen ByClelie Peck
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial tests a new treatment for acute myeloid leukemia (AML) that has either returned or not responded to other treatments. The treatment uses specially modified immune cells from a healthy donor, known as CD33 CAR-NK cells, to target and destroy cancer cells. The trial will first determine the safest dose and then evaluate its effectiveness. People with AML that hasn't responded to two rounds of chemotherapy or has returned after treatment might be suitable candidates. Participants will be closely monitored in the hospital and may need to undergo additional procedures to track their progress. As a Phase 1 trial, the research focuses on understanding how the treatment works in people, offering participants the chance to be among the first to receive this innovative therapy.

Do I need to stop my current medications for the trial?

The trial requires that you stop certain medications before starting. Specifically, you cannot have had AML-directed therapies in the 14 days before the trial, except for hydroxyurea. You also need to be off systemic immunosuppressive therapy for at least 14 days before enrolling.

Is there any evidence suggesting that this treatment is likely to be safe for humans?

Research has shown that CD33 CAR-NK cells show early signs of safety for treating acute myeloid leukemia (AML) that has returned or is unresponsive to other treatments. These specially modified immune cells from a healthy donor can be safely used in patients.

In earlier trials, patients generally tolerated CD33 CAR-NK cells well. Some side effects occurred, but they were usually manageable. The trials mainly involved patients whose AML had returned or did not respond to other treatments.

These studies suggest that this therapy is feasible and has a promising safety record. However, like any new treatment, more research is needed to fully understand its long-term safety.12345

Why do researchers think this study treatment might be promising for AML?

Unlike the standard treatments for acute myeloid leukemia (AML), which often include chemotherapy drugs like cytarabine and anthracyclines, CD33 CAR-NK cells offer a novel approach by harnessing the power of engineered natural killer (NK) cells. These cells are specially designed to target and destroy leukemia cells by focusing on the CD33 protein found on their surface. This targeted action not only promises a more precise attack on cancer cells but also aims to reduce the collateral damage to healthy cells, potentially leading to fewer side effects. Researchers are excited about this treatment because it combines the specificity of CAR technology with the innate cancer-fighting abilities of NK cells, potentially offering a more effective and safer option for AML patients.

What evidence suggests that CD33 CAR-NK cells might be an effective treatment for AML?

Research has shown that CD33 CAR-NK cells, which participants in this trial will receive, could be promising in treating acute myeloid leukemia (AML). These specially modified immune cells are designed to find and destroy leukemia cells. Early results suggest they can be both effective and safe for patients with CD33-positive leukemia. Studies have demonstrated that these cells can attack cancer cells while causing less harm to healthy cells. Some research indicates that using CRISPR technology can enhance these cells' effectiveness, offering a potential breakthrough in AML treatment. Overall, the evidence supports the potential of CD33 CAR-NK cells to improve outcomes for patients with this type of leukemia.14567

Who Is on the Research Team?

ML

Margaret Lamb, MD

Principal Investigator

Nationwide Children's Hospital

Are You a Good Fit for This Trial?

This trial is for people with acute myeloid leukemia (AML) that hasn't improved or has returned after other treatments. Participants must be healthy enough to undergo chemotherapy and cell infusion, and willing to stay in the hospital for monitoring until their blood counts recover.

Inclusion Criteria

My kidney, liver, heart, brain, and lungs are working well.
I agree to use effective birth control for 6 months after my last treatment.
I can understand and am willing to sign the consent form.
See 9 more

Exclusion Criteria

I had a stem cell transplant from a donor within the last 3 months.
I am currently on medication to suppress my immune system.
I am taking hydrocortisone for adrenal insufficiency.
See 13 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Chemotherapy

Participants receive lymphodepleting chemotherapy with Fludarabine and Cytarabine, along with oral Venetoclax

3 weeks
Hospitalized for 4-5 weeks

CD33 CAR NK Cell Infusion

Participants receive CD33 CAR NK cell infusion on day 7, and possibly a second infusion on day 14 for dose level 4

1-2 weeks
Hospitalized for infusion and monitoring

Follow-up

Participants are monitored for safety and effectiveness after treatment, including bone marrow biopsy and potential lumbar puncture or imaging

1 year
Weekly clinic visits until day 35, then regular follow-ups

Long-term Follow-up

Participants are monitored for potential long-term side effects of the cell therapy

Up to 15 years

What Are the Treatments Tested in This Trial?

Interventions

  • Universal donor derived CD33 CAR-NK
Trial Overview The study tests a new AML treatment using modified immune cells from donors (CD33 CAR-NK cells). It's in two parts: finding the best dose (Phase I) and testing its effectiveness at that dose (Phase II), including possible double dosing, followed by close monitoring.
How Is the Trial Designed?
1Treatment groups
Experimental Treatment
Group I: CD33 CAR NK CellsExperimental Treatment1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

Nationwide Children's Hospital

Lead Sponsor

Trials
354
Recruited
5,228,000+

Citations

Safety and efficacy of CD33-targeted CAR-NK cell therapy ...CAR-natural killer (NK) cells not only exhibit antitumor effects but also demonstrate increased safety and universality. We have developed a new ...
CAR-NK cell therapy in AML: Current treatment, challenges ...A new strategy for treating CD33+ leukemia is proposed using genetically modified natural killer (NK) cells. These cells are engineered with a chimeric receptor ...
CAR-T and CAR-NK cell therapies in AML: breaking barriers ...CRISPR/Cas9 editing of NKG2A improves the efficacy of primary CD33-directed chimeric antigen receptor natural killer cells. Nat Commun. 2024 ...
Chimeric Antigen Receptor-Engineered Natural Killer ...Chimeric Antigen Receptor-Engineered Natural Killer (CAR-NK) Cell Therapy in Acute Myeloid Leukemia: A Systematic Review of the Literature.
Primary CD33-targeting CAR-NK cells for the treatment of ...Here we report on the generation of CD33-targeted CAR-modified natural killer (NK) cells by transduction of blood-derived primary NK cells using baboon ...
6.pubmed.ncbi.nlm.nih.govpubmed.ncbi.nlm.nih.gov/39748428/
Safety and efficacy of CD33-targeted CAR-NK cell therapy ...Conclusions: Our preclinical and clinical data demonstrated the primary efficacy and safety of CD33 CAR-NK cells for patients with R/R AML.
Study Details | NCT05008575 | Anti-CD33 CAR NK Cells in ...Targeting CD33 surface antigens by CAR NK cells provides an off-the-shelf immune cell therapy. Official Title. Phase I Study to Evaluate the Safety and ...
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