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Acute LeukemiaPhase 1NCT03672851

Study Evaluating Safety and Efficacy of CAR-T Cells Targeting CD123 in Patients With Acute Leukemia

A Phase 1 study testing anti-CD123 CAR-T treatment in people with Acute Leukemia and Acute Leukemia in Relapse, run by Second Affiliated Hospital of Xi'an Jiaotong University at 1 site in China.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This is a single arm, open-label, phase 1 study, to determine the safety and efficacy of anti-CD123 CAR-T cells in treating patients diagnosed with refractory/relapsed acute leukemia in a dose-escalation way. Read more about this study

Who is it for?
Any age
What is being tested?
anti-CD123 CAR-T treatment
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
2 participants
Where
1 siteChina
Study dates
17 Apr 2019to 31 Jul 2019
Phase
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Research patients enrolled are those patients with relapsed or refractory CD123+ acute leukemia (Acute Myeloid Leukemia/ acute lymphoblastic leukemia );
  • Relapsed: is defined as patients that had a first complete remission (CR) before developing recurrent disease (increased bone marrow blasts);
  • Refractory: is defined as patients that have not achieved a first CR after 2 cycles of induction chemotherapy; for patients with leukemia evolving from myelodysplastic syndrome, they should have completed at least one cycle of induction chemotherapy;
  • Research participants must have bone marrow and/or peripheral blood samples available for confirmation of diagnosis; CD123 positivity must be confirmed by either flow cytometry or immunohistochemistry within 90 days of study entry; cytogenetics, flow cytometry, and molecular studies (such as FMS-like tyrosine kinase-3 [FLT-3] status) will be obtained as per standard practice;
  • Karnofsky performance status score >= 70;
  • Women of child-bearing potential and men must agree to use adequate contraception prior to study entry and for six months following duration of study participation; should a woman become pregnant or suspect that she is pregnant while participating on the trial, she should inform her treating physician immediately;
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  • Calculated creatinine clearance (absolute value) of >= 50 mL/minute or creatinine < 2.0 mg/dl or < 2 times upper limit of normal for the research participant's age group;
  • Serum bilirubin =< 3.0 mg/dL;
  • Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 5 times the institutional upper limits of normal;
  • Ejection fraction measured by echocardiogram (ECHO) or multi gated acquisition scan (MUGA) >= 50%;
  • Diffusion capacity of carbon monoxide (DLCO) or forced expiratory volume in one second (FEV1) > 45% predicted;
  • Research participants' last dose of prior chemotherapy or radiation must be >= 2 weeks before leukapheresis;
  • If a research participant has undergone prior allogeneic stem cell transplant, he/she must be off all immunosuppressants for graft versus host disease (GVHD) for at least 2 weeks before undergoing leukapheresis;
  • Negative serum or urine pregnancy test;
  • All research participants must have the ability to understand and willingness to sign a written informed consent or age appropriate assent for pediatric patients.

Who cannot join

  • Acute Promyelocytic Leukemia, t(15,17) (q22;q12);
  • Pregnant and lactating women;
  • Research participants who have tested human immunodeficiency virus (HIV) positive, or have active hepatitis B or C infection, or poorly controlled infection;
  • History of allergic reactions attributed to compounds of similar chemical or biological composition to cetuximab
  • Dependence on corticosteroids (5mg/day prednisone more than 2 weeks);
  • A known hypersensitivity to any of the test materials or related compounds;
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  • Presence of active and clinically relevant Central Nervous System (CNS) disorder;
  • Undergone prior allogeneic stem cell transplant, GVHD occurred within 6 months, requiring immunosuppressive therapy;
  • Active autoimmune disease, such as psoriasis and rheumatoid arthritis;
  • Other situations the clinicians think not eligible for participation in the research.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Second Affiliated Hospital of Xi'an Jiaotong University

    Xi'an, Shaanxi, 710000

Other trials in China

About this study

This is a single arm, open-label, phase 1 study, to determine the safety and efficacy of anti-CD123 CAR-T cells in treating patients diagnosed with refractory/relapsed acute leukemia in a dose-escalation way.

Read the detailed description

This is a dose-escalation study of autologous anti-CD123 CAR-T cells. Patients receive fludarabine phosphate(300 mg/m^2) and cyclophosphamide (30 mg/m^2) IV on days -5 to -3, and then Patients receive autologous anti-CD123 CAR T cells IV over 20 minutes on day 0 (20% of total dose), day2 (30% of total dose) and day6 (50% of total dose, according to the side-effects occured). The total dose of CAR-T cells used in dose-escalation study is 0.5x10^6- 2.0x10^6 CAR-T cells/kg.

Being tested
anti-CD123 CAR-T treatment
Medical subject headings
Leukemia, Myeloid, Acute, Recurrence

What participants receive

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

  • anti-CD123 CAR-T treatmentDrug

    Patients receive fludarabine phosphate(300 mg/m^2) and cyclophosphamide (30 mg/m^2) IV on days -5 to -3, and then Patients receive autologous anti-CD123 CAR T cells IV over 20 minutes on day 0 (20% of total dose), day2 (30% of total dose) and day6 (50% of total dose, according to the side-effects occured). The total dose of CAR-T cells used in dose-escalation study is 0.5x10^6- 2.0x10^6 CAR-T cells/kg.

Study groups in NCT03672851
Study groupRoleWhat they receive
anti-CD123 CAR-T treatmentExperimentalNot described
Receives: Drug: anti-CD123 CAR-T treatment

What is being measured

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

  1. Dose-limiting toxicity (DLT)

    assessed by the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.0

    Measured: 28 days

  2. Incidence of adverse events

    assessed by NCI CTCAE version 4.0

    Measured: Day 1-60 months after injection

  3. Disease response (CR or CRi)

    Measured: Day 1-60 months after injection

Secondary outcomes (2)
  1. Survival

    Measured: Day 1-60 months after injection

  2. Minimal residual disease

    Measured: Day 1-60 months after injection

Timeline

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

  1. First posted17 Sep 2018
  2. Study start17 Apr 2019
  3. Primary completion31 Jul 2019
  4. Study completion31 Jul 2019

Why it stopped: adverse effect

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
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
2 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03672851
Sponsor's protocol ID
anti-CD123 CAR-T therapy
Status last verified
May 2019
First submitted
13 Sep 2018
Last updated
6 Sep 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing anti-CD123 CAR-T treatment in people with Acute Leukemia and Acute Leukemia in Relapse, run by Second Affiliated Hospital of Xi'an Jiaotong University 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 15 inclusion and 10 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: stopped early, as of the sponsor's last update on 6 Sep 2019. 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?

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.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: adverse effect). Results are not available in the source record.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Dose-limiting toxicity (DLT) (time frame: 28 days). The study lists 3 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 6 Sep 2019.

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