ClinicalTrials.gg
Enrolling by invitationNCT03226704Updated Nov 9, 2026

Leukapheresis for CAR or Adoptive Cell Therapy Manufacturing

An observational study in Leukemia, Lymphoma and Acute Lymphoblastic Leukemia, sponsored by National Cancer Institute (NCI). Enrolling by invitation at 1 site in United States. Open to participants aged 3 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-11-09.

Primary conditionPrecursor Cell Lymphoblastic Leukemia-LymphomaRegistry: LeukemiaReclassifiedWhy we changed it
Registry
Leukemia — the first condition term the registry derived for this study.
ClinicalTrials.gg
Precursor Cell Lymphoblastic Leukemia-Lymphoma
Why
  1. The study's listed conditions name Precursor Cell Lymphoblastic Leukemia-Lymphoma, 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 National Cancer Institute (NCI) · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
120
Ages
3 Years to 65 Years
Sex
All
01

Study summary

Background:

Leukapheresis is a procedure to separate and collect white blood cells. It is the first step in a treatment called CAR (chimeric antigen receptor) T-cell therapy. CAR-T therapy may be offered to people when their cancer comes back. The collected T-cells are used to make a special version of T-cells called CARs. Researchers want to collect these cells from people who may become eligible for a CAR T-cell study in the future.

Objective:

To identify people who have a high likelihood to benefit from CAR T-cell therapy early in their disease course and collect and store a T-cell product.

Eligibility:

People ages 3-65 with a form of leukemia or lymphoma that has not been cured by standard therapy

Design:

Participants will be screened with medical history, physical exam, and blood and urine tests. Review of existing MRI, x-ray, pathology specimens/reports or CT images may be done.

On this study, participants will have leukapheresis. A needle will be placed into the arm. Blood will be collected and go through a machine. White blood cells will be taken out by the machine. The plasma and red cells will be returned to the participant through a second needle in the other arm. The procedure will take 4-6 hours. Some participants may have a central line (catheter) inserted which is needed to do the leukapheresis procedure, instead of the needles in the arms-especially if they are smaller. For a central line placement, a long thin tube is inserted through a small incision into the main blood vessel leading into the heart that would allow access to the blood to do the leukapheresis procedure.

Participants cells will be processed and frozen for future use in a CAR T-cell therapy study.

...

Read the detailed description

Background:

  • Leukapheresis is a necessary step to developing a "CAR therapy" or other adoptive cellular therapy products. There are numerous clinical trials underway in the NCI utilizing CAR therapy.
  • The purpose of this protocol is to develop a streamlined process whereby patients undergo apheresis for development of a CAR cell or other adoptive cell therapy product on a subsequent therapeutic clinical trial, which can be administered when the patient needs investigational therapies.
  • Emerging data suggests the critical importance of elements of the apheresis product in outcomes following adoptive cell therapy. Evaluation of methodologies to optimize timing and composition of the apheresis collection are imperative to the feasibility of manufacturing and remains an active area of investigations. Patient specific elements (e.g., presence of NK-cells/circulating leukemic blasts and/or inhibitory myeloid derived suppressor cells) along with other parameters of the apheresis product itself appear to influence efficacy and toxicity profiles of adoptive cell therapy.
  • Allowing for collection of the leukapheresis product in a protocol separate from the therapeutic protocol would allow for the best optimization of:

    • Patient care and disease burden
    • Timing and coordination of cell infusion
    • Collection in patients with high-risk disease who have no current detectable disease but have a very high likelihood of relapse.
    • Comprehensive evaluation of apheresis products will facilitate enhanced understanding of critical elements of the apheresis product in patients with cancer and how this may impact outcomes of adoptive cell therapy.

Objective:

To obtain via the leukapheresis process by which cells will be collected and stored for use in CCR CAR or other adoptive cell therapy clinical trials.

Eligibility:

Patients >=3 - \<=65 years of age, at least 15 kg, with relapsed/refractory cancer that has recurred after or not responding to at least one or more standard regimen.

Design:

-Once a patient is identified to be a future potential candidate for one of the NCI CAR or other adoptive cell therapy clinical trials, they will undergo leukapheresis, as estimated by recipient weight and target cell harvest dose in the Department of Transfusion Medicine

(DTM).

-No treatments, investigational or standard therapy will be administered on this protocol beyond those used to support the apheresis procedure.

02

Conditions studied

  • Leukemia
  • Lymphoma
  • Acute Lymphoblastic Leukemia
  • Diffuse Large B Cell Lymphoma
  • Non-Hodgkin's Lymphoma

Keywords

  • CD19
  • CD22
  • CD19/22
  • Immunotherapy
  • Apheresis
  • Natural History
03

In context

Precursor Cell Lymphoblastic Leukemia-Lymphoma Reclassified

2,584 studies on the registry are indexed under Precursor Cell Lymphoblastic Leukemia-Lymphoma; 473 are open to participants now.

This study's planned enrollment of 120 is above the median of 108 across 400 observational studies indexed under Precursor Cell Lymphoblastic Leukemia-Lymphoma.

Browse Precursor Cell Lymphoblastic Leukemia-Lymphoma studies →

Lead sponsor

National Cancer Institute (NCI) is the lead sponsor of 3,556 studies on the registry; 336 are open to participants now.

Of its 411 completed or terminated interventional studies of FDA-regulated products, 373 (91%) have results posted.

Compared within Precursor Cell Lymphoblastic Leukemia-Lymphoma, 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
3 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients 3-65 years of age, at least 15 kg, with relapsed/refractory cancer that has recurred after or not responded to one or more standard regimens and/or deemed incurable by standard therapy and who meet all eligibility criteria are eligible to participate.

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

  • Age: >= 3 and \<= 65 years
  • Weight >= 15 kg
  • Confirmation of cancer diagnosis provided by disease-specific assessment (e.g., flow cytometry, PCR) or H\&E verification.
  • Disease Status:

    • cancer that has failed at least one standard regimen and are not in remission at the time of leukapheresis, OR
    • Previously treated patients without detectable disease at the time of leukapheresis but at high-relapse risk.
  • Potentially eligible for future NIH-CAR or other adoptive cell therapy based on the following:

    • Adequate performance status: Patients > 10 years of age: >= 50%; Patients \<= 10 years of age: Lansky scale >= 50%
    • Adequate organ function:

      • >750/mcL*
      • >=30,000/mcL*
      • total \<=2 X (except in the case of subjects with documented Gilbert s disease > 3x ULN)

(SGOT)/ALT(SGPT)\<=20 X institutional upper limit of normal for age and laboratory normal ranges

creatinine within age adjusted normal institutional limits (see below) OR

>= 60 mL/min/1.73 m\^2 for creatinine levels above institutional normal.

  • Age (Years): \<=5; Maximum Serum Creatine (mg/dL): 0.8
  • Age (Years): 5 \< age \<= 10; Maximum Serum Creatine (mg/dL): 1.0
  • Age (Years): >10; Maximum Serum Creatine (mg/dL): 1.2

    • Cytopenias deemed to be disease-related and not therapy-related are exempt from this exclusion.

      • Patients, parents/guardians, legally authorized representative (LAR), or durable power of attorney must be able to give consent and sign the Document.

Exclusion criteria

EXCLUSION CRITERIA:

  • Transfusion thrombocytopenia such that count cannot be adequately supported with transfusions to be at >=30,000/mcL
  • Active DIC, bleeding or coagulopathy which cannot be corrected with minimal intervention
  • Rapidly progressive disease or hyperleukocytosis >= 50,000 blasts/mcL
  • Symptomatic, uncontrolled or severe intercurrent illness that would compromise the ability to tolerate CAR or adoptive cell therapy-based toxicity
  • Subjects must have recovered from the acute side effects of their prior therapy, such that eligibility criteria are met. Cytopenias deemed to be disease-related and not therapyrelated are exempt from this exclusion.
  • Pregnant or nursing (lactating) individuals, where pregnancy is defined as the state of after conception and until the termination of gestation, confirmed by a positive hCG laboratory test at screening
  • Active or latent or active , or any uncontrolled infection at screening
  • (HIV) infection at screening (The experimental treatments being evaluated depend upon an intact immune system. Patients who are HIV seropositive can have decreased immune competence and thus be less responsive to the experimental treatment and more susceptible to its toxicities)
  • Any patient that in the opinion of the investigator is not medically stable to undergo the leukapheresis procedure or will not comply with the visit schedules or procedures
Terms in these criteria, in plain language(12)

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.

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.

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.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

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.

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.

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.

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.

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.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

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

Observational model
Cohort
Time perspective
Prospective
Enrollment
120 participants (estimated)

Groups and cohorts

  • 1

    Patients \>/=3 - \</=65 years of age, at least 15 kg, with relapsed/refractory cancer that has recurred after or not responded to at least one standard regimen

    Procedure: Leukapheresis

Interventions

  • ProcedureLeukapheresis

    Leukapheresis

06

What researchers measure

Primary outcomes

  1. fraction of subjects who can enroll on a CAR-T study within approximately 12 months of undergoing apheresis

    number of subjects who enroll on a CAR-T study within approximately 12 months of undergoing apheresis

    Time frame: 12 months after collection of apheresis product

Secondary outcomes

  1. fraction of patients who experience a grade 4 toxicity associated with apheresis

    number of patients who experience an unexpected grade 4 toxicity associated with apheresis

    Time frame: completion of apheresis procedure

  2. fraction of patients who can enroll on a CAR/adoptive cell therapy study within 12 months of undergoing apheresis by disease and type of CAR to be received.

    number of patients who can enroll on a CAR/adoptive cell therapy study within 12 months of undergoing apheresis by disease and type of CAR to be received

    Time frame: 12 months after collection of apheresis product

07

Study locations

1 site
  • National Institutes of Health Clinical Center
    Bethesda, Maryland 20892, United States
08

References and documents

Individual participant data

Plan to share: Yes — All IPD recorded in the medical record will be shared with intramural investigators upon request.

Supporting information: Study protocol, Statistical analysis plan, Informed consent form

Time frame: Clinical data available during the study and indefinitely.

Access criteria: Clinical data will be made available via subscription to BTRIS and with the permission of the study PI.

09

Timeline

4 registry updates since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2017 (actual). Primary completion is estimated for Jan 2030, 149 months after the start.

Of 145 non-industry observational studies under Precursor Cell Lymphoblastic Leukemia-Lymphoma, half reached primary completion within 54 months of starting (the median), counting those still running; a quarter within 26 and three quarters within 143. This study's planned 149 months is above that.

Counting every sponsor, half of 163 studies reached it within 54 months; a quarter within 24 and three quarters within 142.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 21, 2017
First posted
Jul 24, 2017
StartActual
Aug 14, 2017
Primary completionEst.
Jan 31, 2030
CompletionEst.
Jul 31, 2030
Last update
Nov 9, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Minor edits
Nothing that changes what the study is or who can join. Edited: description and verification date
4 updates, last Nov 9, 2026
Show all 4 updates
  1. Nov 9, 2026
    Minor edits only
    + 1 other change: description
  2. Oct 29, 2026
    Minor edits only
    + 1 other change: verification date
  3. Oct 16, 2026
    Minor edits only
    + 2 other changes: verification date and description
  4. Oct 13, 2026
    Minor edits only
    + 1 other change: description

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT03226704
Responsible party
Sponsor
First posted
Jul 24, 2017
Start date
Aug 14, 2017
Primary completion
Jan 31, 2030 (estimated)
Completion
Jul 31, 2030 (estimated)
Last update
Nov 9, 2026

Study contacts

Srivandana Akshintala, M.D.
principal investigator · National Cancer Institute (NCI)

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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