ClinicalTrials.gg
RecruitingNCT04271410Updated Apr 18, 2023

CD19+Targeted CAR-T Cell Therapy for Relapsed/Refractory CD19+ B Cell Leukemia and Lymphoma

A Phase 1/2 interventional study of CD19 CAR-T cells in Leukemia, Lymphoma, Large B-Cell, Diffuse and Leukemia, B-cell, sponsored by Chongqing Precision Biotech Co., Ltd. Recruiting at 1 site in China. Open to participants aged 2 Years to 75 Years. Per ClinicalTrials.gov, last updated 2023-04-18.

Primary conditionLeukemia, Lymphocytic, Chronic, B-CellRegistry: LeukemiaReclassifiedWhy we changed it
Registry
Leukemia — the first condition term the registry derived for this study.
ClinicalTrials.gg
Leukemia, Lymphocytic, Chronic, B-Cell
Why
  1. The study's listed conditions name Leukemia, Lymphocytic, Chronic, B-Cell, a narrower term within Leukemia.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Chongqing Precision Biotech Co., Ltd · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2023, 2 years 10 months ago, but the record still lists the study as recruiting.
  • Registered 8 months after the study started (first participant enrolled Jun 2019, registered Feb 2020).
  • Started Jun 2019; still recruiting 7 years 5 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
80
Allocation
Not applicable
Ages
2 Years to 75 Years
Sex
All
01

Study summary

This is a single arm study to evaluate the efficacy and safety of CD19-targeted CAR-T cells therapy for patients with relapsed/refractory CD19+ B Cell Leukemia and Lymphoma.

Read the detailed description

There are limited options for treatment of relapse/refractory B Cell Leukemia and Lymphoma.CD19 is expressed on most B Cell Leukemia and Lymphoma cells so it is an ideal target for CAR-T. In this study, investigators will evaluate the safety and efficacy of CAR-T targeting CD19 in patients with elapsed/refractory CD19+ B Cell Leukemia and Lymphoma. The primary goal is safety and efficiency assessment, including adverse events and disease status after treatment.

02

Conditions studied

  • Leukemia
  • Lymphoma, Large B-Cell, Diffuse
  • Leukemia, B-cell
  • Lymphoma, B-Cell
  • Leukemia, Lymphocytic, Chronic, B-Cell

Keywords

  • Leukemia
  • Lymphoma
03

In context

Leukemia, Lymphocytic, Chronic, B-Cell Reclassified

2,036 studies on the registry are indexed under Leukemia, Lymphocytic, Chronic, B-Cell; 237 are open to participants now.

This study's planned enrollment of 80 is above the median of 39 across 1,603 interventional studies indexed under Leukemia, Lymphocytic, Chronic, B-Cell.

Browse Leukemia, Lymphocytic, Chronic, B-Cell studies →

Lead sponsor

Chongqing Precision Biotech Co., Ltd is the lead sponsor of 51 studies on the registry; 37 are open to participants now.

Compared within Leukemia, Lymphocytic, Chronic, B-Cell, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Leukemia. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
2 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Signed written ;
  2. Diagnose as B Cell Leukemia and Lymphoma, and meet one of the following conditions:

    1. Failed to standard chemotherapy regimens;
    2. Relapse after complete remission, high-risk and / or refractory patients ;
    3. Relapse after hematopoietic stem cell transplantation;
  3. For patients with Ph + ALL, the following conditions must be met: those who have received a standard induction chemotherapy regimen and who have not achieved complete remission after TKI treatment or have relapsed after remission (cannot tolerate TKI treatment or have to TKI treatment or the presence of TKI class) Except for drug resistant patients);
  4. Evidence for cell membrane CD19 expression;
  5. All genders ,ages: 2 to 75 years;
  6. The expect time of survive is above 3 months;
  7. >60;
  8. No serious mental disorders ;
  9. ≥50%
  10. Sufficient hepatic function defined by /AST≤3 x and ≤2 x ULN;
  11. Sufficient renal function defined by ≤2 x ULN;
  12. Sufficient pulmonary function defined by indoor oxygen saturation≥92%;
  13. With single or venous blood collection standards, and no other cell collection contraindications;
  14. Ability and willingness to adhere to the study visit schedule and all protocol requirements.

Exclusion criteria

Exclusion Criteria:

  1. Previous history of other ;
  2. Presence of uncontrolled active infection;
  3. Evidence of disorder that need the treatment by ;
  4. Active or chronic ;
  5. The patients treatment by inhibitor of T cell;
  6. Pregnant or breasting-feeding women;
  7. Any situation that investigators regard not suitable for attending in this study (e.g. , HCVinfection or intravenous drug addiction) or may affect the data analysis.
Terms in these criteria, in plain language(13)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

GVHD (graft-versus-host disease)

After a transplant from a donor, the donor’s immune cells attack the recipient’s body, often the skin, gut or liver.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
80 participants (estimated)

Study arms

  • Experimental
    CD19 CAR-T cells treat

    Patients will be be treated with CD19 CAR-T cells

    Biological: CD19 CAR-T cells

Interventions

  • BiologicalCD19 CAR-T cells

    CD19 CAR-T cell therapy

06

What researchers measure

Primary outcomes

  1. Adverse events that related to treatment

    Therapy-related adverse events will be recorded and assessed according to the National Cancer Institute's Common Terminology Criteria for Adverse Events (CTCAE, Version 5.0)

    Time frame: 2 years

  2. The response rate of CD19 CAR-T treatment in patients with relapse/refractory B Cell Leukemia and Lymphoma that treatment by CD19 CAR-T cells therapy

    The response rate of CD19 CAR-T treatment will be recorded and assessed according to the National Comprehensive Cancer Network Guideline

    Time frame: 2 years

Secondary outcomes

  1. Rate of CD19 CAR-T cells in bone marrow and peripheral blood

    In vivo (bone marrow and peripheral blood) rate of CD19 CAR-T cells were determined by means of flow cytometry

    Time frame: 2 years

  2. Quantity of CD19 CAR copies in bone marrow and peripheral blood

    In vivo (bone marrow and peripheral blood) quantity of CD19 CAR copies were determined by means of qPCR

    Time frame: 2 years

  3. Cellular kinetics of CD19 positive cells in bone marrow

    In vivo (bone marrow) rate and quantity of CD19 positive cells were determined by means of flow cytometry

    Time frame: 1 years

  4. Duration of Response (DOR) of CD19 CAR-T treatment in patients with refractory/relapsed B Cell Leukemia and Lymphoma

    DOR will be assessed from the first assessment of CR or CRi to the first assessment of recurrence or progression of the disease or death from any cause (censored)

    Time frame: 2 years

  5. Progress-free survival(PFS) of CD19 CAR-T treatment in patients with refractory/relapsed B Cell Leukemia and Lymphoma

    PFS will be assessed from the first CAR-T cell infusion to death from any cause or the first assessment of progression (censored)

    Time frame: 2 years

  6. Overall survival(OS) of CD19 CAR-T treatment in patients with refractory/relapsed B Cell Leukemia and Lymphoma

    OS will be assessed from the first CAR-T cell infusion to death from any cause (censored)

    Time frame: 2 years

07

Study locations

1 of 1 sites recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 18, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04271410
Responsible party
Sponsor
First posted
Feb 17, 2020
Start date
Jun 1, 2019
Primary completion
Dec 31, 2023 (estimated)
Completion
Jul 1, 2024 (estimated)
Last update
Apr 18, 2023

Study contacts

Zhi Yang, PhD
Contact
yangzhi@precision-biotech.com
86-13206140093
Sanbin Wang, MD
principal investigator · 920th Hospital of Joint Logistics Support Force of People's Liberation Army of China
Cheng Qian, PhD
principal investigator · Chongqing University Cancer Hospital

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion