A Phase 1 interventional study of CD22CART infusion and Tisagenlecleucel in Leukemia and Acute Lymphoblastic Leukemia, sponsored by Stanford University. Recruiting at 1 site in United States. Open to participants aged 1 Year to 25 Years. Per ClinicalTrials.gov, last updated 2026-09-01.
Sponsored by Stanford University · Phase 1, Interventional, and Treatment
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Among 16 studies in Precursor Cell Lymphoblastic Leukemia-Lymphoma by Stanford University — 3 open to participants now, 5 under way, none of them phase 3. Precursor Cell Lymphoblastic Leukemia-Lymphoma · Stanford University.
Among the 16 studies in Precursor Cell Lymphoblastic Leukemia-Lymphoma by Stanford University, this one is the 4th largest by planned enrollment of the 13 interventional ones that give a count, is the only one that started in 2024, is one of 6 in phase 1, and was the 15th registered.
2,584 studies on the registry are indexed under Precursor Cell Lymphoblastic Leukemia-Lymphoma; 473 are open to participants now.
Browse Precursor Cell Lymphoblastic Leukemia-Lymphoma studies →3 of the 16 studies in Precursor Cell Lymphoblastic Leukemia-Lymphoma by Stanford University are open now, in 1 country. Recruiting first, the newest first:
Stanford University · Sites in United States
Ages 18–70
Stanford University · Sites in United States
Ages 1 days–45 days
By country, each count listing its studies:
Of the 370 Precursor Cell Lymphoblastic Leukemia-Lymphoma studies recruiting now, 96 (26%) set no upper age limit and 257 (69%) stop at 75 or younger; 247 take children under 18; 29 take healthy volunteers.
This study: 1 Year to 25 Years · all sexes · no healthy volunteers.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
16 studies; the count open now beside each. This study's row is marked.
A study in two phases is counted once above. Listed by phase, each with its combined phases: Phase 1 7 · Phase 2 4
First in 2002; this study’s year is marked. 1 started in 2024.
By drug class, each counting the studies that test any of its medicines:
This study's planned enrollment of 28 is below the median of 40 across 1,952 interventional studies indexed under Precursor Cell Lymphoblastic Leukemia-Lymphoma.
Median enrollment 17 across the 13 interventional studies, 72 across the 3 observational. Of the 9 that completed or were terminated, 4 (44%) have results posted.
This tab as a report to print or save as PDF → With an account.
Stanford University is the lead sponsor of 2,170 studies on the registry; 433 are open to participants now.
Of its 267 completed or terminated interventional studies of FDA-regulated products, 207 (78%) have results posted.
2 of the studies in Precursor Cell Lymphoblastic Leukemia-Lymphoma by Stanford University that are under way reach primary completion within a year, 0 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT06551584Stanford UniversityTrial for Patients w/ Advanced Hematologic Malignancies Undergoing Allogeneic HCT | 2026-12 |
| NCT06408194Stanford UniversityAutologous CD22 CAR T Cells Following Commercial CD19 CAR T Cells in B Cell Malignancies | 2027-02 |
Add all 2 to your calendar (.ics) → With an account.
Among the 16 studies in Precursor Cell Lymphoblastic Leukemia-Lymphoma by Stanford University, from their registry updates:
This tab as a report to print or save as PDF → With an account.
The primary purpose of this study is to determine safety, feasibility, and the Maximum Tolerated Dose (MTD)/Recommended Phase 2 Dose (RP2D) of CD22 Chimeric Antigen Receptor T-Cell Therapy (CART) cells when administered 28 to 42 days after an infusion of a commercial CAR called Tisagenlecleucel, to children and young adults with relapsed or refractory B-cell leukemia.
Primary Objectives:
Phase 1 portion (Safety lead-in):
Determine the maximum tolerated dose (MTD) and recommended phase 2 dose (RP2D) dose of CD22CART in children and young adults with R/R CD19 and CD22 expressing B-cell malignancies administered after infusion of tisagenlecleucel according to FDA approved dose range.
Phase 1b portion (Expansion cohort) Establish the feasibility of delivering CD22CART following infusion of commercial tisagenlecleucel, administered per FDA approved Package Insert, in children and young adults with B cell malignancies.
Determine the safety of administering the RP2D of CD22CART 28 to 42 days after infusion of FDA approved commercial tisagenlecleucel in children and young adults with B cell malignancies.
Secondary Objectives:
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 28 is below the median of 40 across 1,952 interventional studies indexed under Precursor Cell Lymphoblastic Leukemia-Lymphoma.
Browse Precursor Cell Lymphoblastic Leukemia-Lymphoma studies →Stanford University is the lead sponsor of 2,170 studies on the registry; 433 are open to participants now.
Of its 267 completed or terminated interventional studies of FDA-regulated products, 207 (78%) 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 →
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.
Normal Organ and Marrow Function
Adequate renal, hepatic, pulmonary and cardiac function defined as:
Ability to give . All Participants ≥ 18 years of age must be able to give informed consent. For participants \<18 years old their legal authorized representative (LAR) (i.e. parent or guardian) must give informed consent. Pediatric participants will be included in age appropriate discussion and assent per institutional SOPs will be obtained for those > 7 years of age, when appropriate. If a minor becomes of age during participation of this study, he/she will be asked to reconsent as an adult.
Exclusion Criteria:
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.
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.
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.
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.
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.
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.
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.
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.
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.
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.
Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.
After a transplant from a donor, the donor’s immune cells attack the recipient’s body, often the skin, gut or liver.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
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.
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.
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 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.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Histologically or cytologically confirmed
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Allogeneic and autologous transplant
Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
All enrolled participants will receive lymphodepletion followed by standard of care tisagenlecleucel infusion.
Drug: CD22CART infusion · Drug: Tisagenlecleucel
CD22CART will be administered after Standard of Care (SOC) administration of tisagenlecleucel.
All enrolled participants will receive lymphodepletion followed by standard of care tisagenlecleucel infusion.
Also known as: KYMRIAH
The number of patients who experience dose limiting toxicities (Phase 1)
The number of patients who experience dose limiting toxicities within 28 days of administration of CD22 CART when given within 28-42 days of infusion of tisagenlecleucel
Time frame: 28 days after single infusion of CD22 CAR T cells
The number of patients who successfully receive infusion of CD22CART (Phase 1b)
The number of patients who successfully receive infusion of CD22CART within 42 days of infusion of tisagenlecleucel
Time frame: within 42 days of infusion of tisagenlecleucel
Number of patients who have no evidence of leukemia
Number of patients who have no evidence of leukemia (complete response or complete response with incomplete count recovery) at Day 28 following CD22 CART infusion.
Time frame: 28 days after single infusion of CD22 CAR T cells
The number of patients who have B cell aplasia
The number of patients who have B cell aplasia 6 months following tisagenlecleucel and CD22 CART infusion
Time frame: 6 months following single infusion of CD22 CAR T cells and tisagenlecleucel
Started May 2024 (actual). Primary completion is estimated for Feb 2027, 33 months after the start.
Of 158 non-industry phase 1 interventional studies under Precursor Cell Lymphoblastic Leukemia-Lymphoma, half reached primary completion within 57 months of starting (the median), counting those still running; a quarter within 38 and three quarters within 92. This study's planned 33 months is below that.
Counting every sponsor, half of 208 studies reached it within 55 months; a quarter within 34 and three quarters within 90.
How these figures are worked out, and which studies are left out of them.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
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Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Studies of the drug tested here: Anti-CD22 CAR-expressing T Lymphocytes
Precursor Cell Lymphoblastic Leukemia-Lymphoma →