ClinicalTrials.gg
TerminatedNCT03287817ALEXANDERUpdated Jul 14, 2025Results posted

Cluster of Differentiation Antigen 19/22(CD19/22) CAR T Cells (AUTO3) for the Treatment of Diffuse Large B Cell Lymphoma

A Phase 1/2 interventional study of AUTO3 in Relapsed/Refractory Diffuse Large B-Cell Lymphoma (DLBCL), sponsored by Autolus Limited. Terminated at 11 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-07-14.

Sponsored by Autolus Limited · Phase 1/2, Interventional, and Treatment

Why this study was terminated
After reviewing the data and taking into consideration the available treatment landscape in r/r DLBCL, Autolus didn't progress into the Phase II part of the study and submitted a Notification of End of Trial (MHRA reference 46113/0003/001-0016).

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Phase
Phase 1/2
Study type
Interventional
Enrollment
52
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 1,131 studies in Lymphoma, Large B-Cell, Diffuse with a site in United States — 126 open to participants now, 218 under way, 18 of them phase 3. Lymphoma, Large B-Cell, Diffuse · United States.

Enrollment
351st of 963
52 · median 37
Started
2017
with 41 others
Phase 1/2
147 of 1,131
17 open now
Registered
804th of 1,131
by date

Among the 1,131 studies in Lymphoma, Large B-Cell, Diffuse with a site in United States, this one is the 351st largest by enrollment of the 963 interventional ones that give a count, is one of 42 that started in 2017, is one of 147 in phase 1/2, and was the 804th registered.

Lymphoma, Large B-Cell, Diffuse

1,870 studies on the registry are indexed under Lymphoma, Large B-Cell, Diffuse; 357 are open to participants now.

Browse Lymphoma, Large B-Cell, Diffuse studies →

Open to participants now

126 of the 1,131 studies in Lymphoma, Large B-Cell, Diffuse with a site in United States are open now. Recruiting first, the newest first:

121 more — sign in →

All 126 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 266 Lymphoma, Large B-Cell, Diffuse studies recruiting now, 177 (67%) set no upper age limit and 51 (19%) stop at 75 or younger; 25 take children under 18; 7 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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02

Study summary

The purpose of this study is to test the safety and efficacy of AUTO3, a CAR T cell treatment targeting CD19 and CD22 with consolidation or pre-conditioning with anti-PD1 antibody in patients with DLBCL

Read the detailed description

The study will consist of 2 phases, a Phase I or dose escalation and expansion phase, and a Phase II. Patients with relapsed or refractory DLBCL will be enrolled in both phases of the study. Eligible patients will undergo leukapheresis in order to harvest T cells, which is the starting material for the manufacture of the autologous CAR T product AUTO3, a CD19 and CD22 dual targeting CAR T cell product. Following pre-conditioning by a chemotherapeutic regimen, the patient will receive AUTO 3 intravenously as a single dose and in addition a limited duration of treatment with an anti-PD1 antibody (either as part of the pre-conditioning regimen or consolidation). Patients will then enter a 36-month follow-up period.

03

Conditions studied

  • Relapsed/Refractory Diffuse Large B-Cell Lymphoma (DLBCL)

Keywords

  • Diffuse Large B Cell Lymphoma
  • Relapsed Diffuse Large B Cell Lymphoma
  • Refractory Diffuse Large B Cell Lymphoma
  • AUTO3
  • PD-1
  • Anti PD-1 antibody
04

Who can participate

Ages eligible
18 Years and older
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. Male or female, aged ≥18 years.
  2. Willing and able to give written, .
  3. (ECOG) Performance Status 0 to 1.
  4. confirmed DLBCL and large B cell lymphoma subsets, including:

    Phase I and Phase II Cohort 1:

    1. DLBCL, not otherwise specified (NOS), per World Health Organisation classification and DLBCL with MYC oncogene (MYC) and B cell lymphoma 2 (BCL2) gene and/or B cell lymphoma 6 (BCL6) gene rearrangements (double/triple hit).
    2. Transformed DLBCL from follicular lymphoma (FL).
    3. High-grade B cell lymphoma with MYC expression (excluding Burkitt's lymphoma) Phase I and Phase II Cohort 2.
    4. Transformed DLBCL from other indolent lymphomas (excluding Richter's transformation).
    5. Primary mediastinal large B cell lymphoma.
  5. Chemotherapy- disease, defined as one or more of the following:

    1. Stable disease (≤12 months) or progressive disease as best response to most recent chemotherapy containing regimen. Refractory disease after frontline chemo-immunotherapy is allowed.
    2. Disease progression or recurrence in ≤12 months of prior haematopoietic stem cell transplantation (ASCT).

    OR

  6. Relapse after ≥two or after ASCT. At a minimum:

    1. Patients must have received rituximab or another anti-cluster of differentiation antigen 20 (CD20) monoclonal antibody (unless Investigator determines that tumour is CD20-negative) and an anthracycline-containing chemotherapy regimen.
    2. Patients must have either failed ASCT, or be ineligible for or not consenting to ASCT.
    3. Patients with transformed DLBCL must have received at least one line of therapy after transformation to DLBCL.
  7. Positron emission tomography-positive disease per Lugano classification.
  8. For females of , a negative serum or urine pregnancy test must be documented at screening, prior to pre-conditioning and confirmed before receiving the first dose of study treatment.

    For females who are not or surgically sterile, highly effective methods of must be used during the treatment period and for at least 12 months after the last dose of study treatment.

  9. For males, it must be agreed that that two acceptable methods of contraception are used.
  10. Adequate renal, hepatic, pulmonary, and cardiac function defined as:

    1. ≥40 cc/min.
    2. Serum / aspartate aminotransferase ≤2.5 x (ULN).
    3. Total ≤1.5 x ULN, except in subjects with Gilbert's syndrome.
    4. (LVEF) ≥50% (by echocardiogram [ECHO] or Multiple gated acquisition scan [MUGA]) unless the institutional lower limit of normal is lower.
    5. Baseline oxygen saturation >92% on room air and ≤Grade 1 dyspnoea.
  11. Patient has adequate bone marrow (BM) function without requiring ongoing blood product or granulocyte-colony stimulating factor support and meets the following criteria:

    1. ≥1.0 × 10\^9/L.
    2. Absolute lymphocyte count ≥0.3 × 10\^9/L (at enrolment and prior to leukapheresis).
    3. ≥80 g/L.
    4. ≥75 × 10\^9/L
  12. No for leukapheresis.

Exclusion criteria

Exclusion Criteria:

  1. Prior haematopoietic stem cell transplant.
  2. Females who are pregnant or lactating.
  3. History or presence of CNS pathology such as epilepsy, paresis, aphasia, stroke within prior 3 months, severe brain injuries, dementia, Parkinson's disease, cerebellar disease, organic brain syndrome, uncontrolled mental illness, or psychosis.
  4. Patients with active CNS involvement by . Patients with history of central nervous system (CNS) involvement with malignancy may be eligible if CNS disease has been effectively treated and provided treatment was at least 4 weeks prior to enrolment (at least 8 weeks prior to AUTO3 infusion).
  5. Clinically significant, uncontrolled heart disease or a recent (within 12 months) cardiac event.

    1. Uncontrolled cardiac arrhythmia (patients with rate-controlled atrial fibrillation are not excluded).
    2. Evidence of pericardial effusion
  6. Patients with a history (within 3 months) or evidence of deep vein thrombosis or pulmonary embolism requiring ongoing therapeutic anticoagulation at the time of pre-conditioning.
  7. Patients with active gastrointestinal bleeding.
  8. Patients with any major surgical intervention in the last 3 months.
  9. Active bacterial, viral or fungal infection requiring systemic treatment. Active or latent infection or infection. Testing positive for , human T cell lymphotropic virus (HTLV1 and 2) or syphilis.
  10. History of disease resulting in end organ injury or requiring systemic /systemic disease modifying agents within the last 24 months.
  11. Patients with a known history or prior diagnosis of optic neuritis or other immunologic or inflammatory disease affecting the CNS.
  12. Evidence of active pneumonitis on chest computed tomography (CT) scan at screening or history of drug-induced pneumonitis, idiopathic pulmonary fibrosis, organising pneumonia, or idiopathic pneumonitis.
  13. History of other malignant neoplasms unless disease free for at least 24 months (carcinoma in situ, non-melanoma skin cancer, breast or prostate cancer on hormonal therapy allowed).
  14. Prior treatment with PD1, programmed cell death ligand 1 (), or cytotoxic T lymphocyte-associated protein-4-targeted therapy, or tumour necrosis factor (TNF) receptor superfamily agonists within 6 weeks prior to AUTO3 infusion.
  15. Prior treatment with or approved gene therapy or cell therapy products until a dose level has treated at least three patients and has been declared safe.
  16. Prior CD19 or CD22 targeted therapy.
  17. The following medications are excluded:

    1. : Therapeutic doses of corticosteroids within 7 days of leukapheresis or 72 hours prior to AUTO3 administration. However, physiological replacement, topical, and inhaled steroids are permitted.
    2. Immunosuppression: Immunosuppressive medication must be stopped ≥2 weeks prior to leukapheresis or AUTO3 infusion.
    3. Cytotoxic chemotherapies within 2 weeks of AUTO3 infusion and 1 week prior to leukapheresis (2 weeks for lymphodepleting chemotherapy).
    4. Antibody therapy use including anti-CD20 therapy within 2 weeks prior to AUTO3 infusion, or 5 half-lives of the respective antibody, whichever is shorter.
    5. Granulocyte-colony stimulating factor less than 10 days prior to leukapheresis.
    6. ≤4 weeks prior to enrolment.
    7. Prophylactic intrathecal therapy: Methotrexate within 4 weeks and other intrathecal chemotherapy (e.g. Ara-C) within 2 weeks prior to starting pre-conditioning chemotherapy.
  18. Prior limited radiation therapy within 4 weeks of AUTO3 infusion or within 24 weeks for definitive radiation to chest.
  19. Research participants receiving any other investigational agents, or concurrent biological, chemotherapy, or radiation therapy.
  20. Known allergy to albumin, dimethyl sulphoxide (DMSO), cyclophosphamide or fludarabine, pembrolizumab or tocilizumab.
  21. Any to receive anti-PD1 antibody pembrolizumab will be excluded from cohorts requiring administration of pembrolizumab.
  22. Patients, who in the opinion of the Investigator, may not be able to understand or comply with the safety monitoring requirements of the study.
  23. Any other condition that in the Investigator's opinion would make the patient unsuitable for the clinical trial.

    Phase I outpatient cohort:

  24. Subjects who do not have caregiver support (in line with institutional outpatient transplant guidelines) for outpatient/ambulatory care setting.
  25. Subjects who are staying greater than 60 minutes (or whatever is permissible per institutional outpatient transplant guidelines) from the clinical trial site at the time of treatment.

For AUTO3 Infusion: Patients meeting any of the following exclusion criteria must not be treated with AUTO3 or have treatment delayed until they no longer meet these criteria:

  1. Severe intercurrent infection.
  2. Requirement for supplementary oxygen or active pulmonary infiltrates.
  3. Clinical deterioration of organ function (renal and hepatic) exceeding the criteria set at study entry.
Terms in these criteria, in plain language(29)

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.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

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.

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.

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.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

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.

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.

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.

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.

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.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

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.

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.

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.

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.

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.

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.

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.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

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.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

05

Study design

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

Study arms

  • Experimental
    AUTO3

    Patient with relapsed or refractory DLBCL

    Biological: AUTO3

Interventions

  • BiologicalAUTO3

    Following preconditioning with chemotherapy (cyclophosphamide and fludarabine) patients will be treated with doses from 50 x 10⁶ to 900 x 10⁶ CD19/ CD22 Chimeric Antigen Receptor (CAR) positive T cells with limited duration of anti-PD1 antibody (pembrolizumab).

This study also gives Pembrolizumab. No intervention listed here names it: that was found by reading the record.

06

What researchers measure

Primary outcomes

  1. Phase I Escalation - Safety (Number of Participants With Grade 3-5 Toxicities) and Identification of Recommended Phase II Dose and Schedule (RP2D).

    Number of patients with Grade 3-5 toxicities during escalation part of Phase I (Cohorts: 50x10\^6 CD19/22 CAR+ T Cells; 50x10\^6 CD19/22 CAR+ T Cells+Pembrolizumab \[Pem\] Day 14; 150-450x10\^6 CD19/22 CAR+ T Cells+Pem Day 14; 150-450x10\^6 CD19/22 CAR+ T Cells+Pem Day -1 in Inpatient Setting) Dose-limiting toxicity defined as: * New non-hematological AE Grade \>=3 using NCI CTCAE (5.0), probably/definitely related to AUTO3, occurring in DLT evaluation period, which did not resolve to Grade 2 or better in 14 days, despite supportive measures. * Grade 4 CRS, neurotoxicity (NT), or cerebral edema, or Grade 3 NT that lasted \>72 hrs * Grade \>3 Disseminated Intravascular Coagulation * Grade \>2 Infusion Reaction with AUTO3 * Grade 4 or 5 event not managed with conventional supportive measures or necessitating dose reduction or modification to trial therapy * Any event that in opinion of Investigator and/or medical monitor put patient at undue risk could also have been considered DLT

    Time frame: Within 75 days of AUTO3 infusion

  2. Phase I Expansion - Safety (Incidence of Grade 3-5 Toxicities) in the Outpatient / Ambulatory Care Setting

    The incidence of Grade 3-5 toxicities during the expansion part of Phase I (Dose cohort: 150 to 450 x 10\^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient Setting)

    Time frame: Within 75 days of AUTO3 infusion

  3. Phase II - Overall Response Rate as Per Lugano Criteria

    This was not analysed due to study termination prior to initiation of Phase II. End of study notification submitted to Medicines and Healthcare products Regulatory Agency (MHRA) (reference 46113/0003/001-0016) - The Last patient last visit was 19 October 2023 (at end of Phase 1) and the study is considered completed (End of study). As per protocol v10.0, end of study is defined as 36 months after the last patient has received AUTO3 infusion or earlier in the event of death or consent withdrawal. Fifty-two patients received AUTO3 in the Phase I part of the study. After reviewing the data and taking into consideration the available treatment landscape in r/r DLBCL, Autolus didn't progress AUTO3-DB1 into the Phase II part of the study. Autolus notified MHRA on 08 November 2021 about enrolment to Phase II of the study (Autolus has decided not to progress AUTO3-DB1 into the Phase II part of the study), and MHRA acknowledged it on 09 November 2021.

    Time frame: Up to 2 years

Secondary outcomes

  1. Feasibility of Generating AUTO3: Number of Patients' Cells Successfully Manufactured as a Proportion of the Number of Patients Undergoing Leukapheresis.

    Feasibility of product generation was examined by assessing the number of AUTO3 successfully manufactured as a fraction of the number of patients undergoing leukapheresis (all patients enrolled).

    Time frame: Up to 8 weeks post leukapheresis.

  2. Determine the Complete Response Rate Following Treatment With AUTO3, as Per Lugano Criteria.

    Participants achieving objective response per Lugano criteria based on independent central radiology review. The Lugano classification of response by 18F-2-fluoro-2-deoxy-D-glucose fluorodeoxyglucose (FDG) PET-CT: 1. no uptake or no residual uptake (when used interim) 2. slight uptake, but below blood pool (mediastinum) 3. uptake above mediastinal, but below or equal to uptake in the liver 4. uptake slightly to moderately higher than liver 5. markedly increased uptake or any new lesion (on response evaluation) Non-progressive disease * complete metabolic response - score of 1, 2 or 3 in nodal or extranodal sites with or without a residual mass * partial metabolic response - score of 4 or 5 with reduced uptake compared with baseline and residual mass(es) of any size * stable disease or no metabolic response - score of 4 or 5 with no obvious change in FDG uptake Progressive disease score 4 or 5 in any lesion with an increase in intensity of FDG uptake from baseline (and/or

    Time frame: Up to 2 years

  3. Duration of Response (DOR).

    Duration of response was defined as the time from the first observed complete response or partial response \[from the first post-baseline response assessment\] until the date of first progressive disease or death due to underlying cancer (primary reason for death=progressive disease), whichever occurred first. Only responders (patients with complete response \[CR\] or partial response \[PR\]) were included in the analysis of duration of response. Response defined by Lugano classification (see Outcome Measure 5). Patients with death not due to underling cancer (primary reason for death=adverse event \[AE\] or Other or Unknown) or who received new anti-cancer therapy other than SCT or discontinued from the study for other reason than progressive disease (PD) or who were lost to follow-up or reached the time point of analysis without a known record of progression or death had the duration of response censored at the date of last adequate disease assessment for response.

    Time frame: Up to 2 years

  4. Progression-free Survival (PFS).

    The progression-free survival was defined as the time from first AUTO3 treatment until the first progression of disease or death from any cause, whichever occurred first. Patients who reached the time point of analysis without a known record of progression had the PFS censored at the date of last adequate disease assessment. Patients who received a new stem cell transplantation (SCT) were censored at the start date of this new SCT. Patients who received a new anti-cancer therapy or discontinued from the study for other reason than disease progression and who were lost to follow-up were censored at the date of last adequate disease assessment. Response defined by Lugano classification (see Outcome Measure 5).

    Time frame: Up to 2 years

  5. Overall Survival (OS).

    Overall survival (OS) was defined as the time from the date of first AUTO3 treatment up to the date of death, regardless of cause of death. Patients alive at the time of the analysis had the OS censored at the date of last assessment when the patient was known alive.

    Time frame: Up to 2 years

Other outcomes

  1. To Determine the Expansion and Persistence of AUTO3 Following Adoptive Transfer in Different Lymphoma Subtypes (Maximum Concentration)

    Analysis of cells in peripheral blood by polymerase chain reaction and/or flow cytometry at a range of time points in the peripheral blood.

    Time frame: Up to 2 years

  2. To Determine the Expansion and Persistence of AUTO3 Following Adoptive Transfer in Different Lymphoma Subtypes (Area Under the Curve From Day 0 to Day 28)

    Analysis of cells in peripheral blood by polymerase chain reaction and/or flow cytometry at a range of time points in the peripheral blood.

    Time frame: Up to 2 years

  3. To Determine the Expansion and Persistence of AUTO3 Following Adoptive Transfer in Different Lymphoma Subtypes (Time to Maximum Concentration)

    Analysis of cells in peripheral blood by polymerase chain reaction and/or flow cytometry at a range of time points in the peripheral blood.

    Time frame: Up to 2 years

07

Results

Posted Jul 14, 2025
Limitations and caveats
Only results of Phase I of the study are presented due to study termination prior to initiation of Phase II.

Participant flow

Participant flow — Overall Study
Milestone50 x 10^6 Cluster of Differentiation Antigen 19/22 (CD19/CD22) CAR+ T Cells50 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day -1 in an Outpatient Setting
Started4381720
Completed01334
Not completed4251416
Withdrew: Progressive disease423108
Withdrew: Death00234
Withdrew: Physician decision00010
Withdrew: Withdrawal by subject00004

Outcome measures

PrimaryPhase I Escalation - Safety (Number of Participants With Grade 3-5 Toxicities) and Identification of Recommended Phase II Dose and Schedule (RP2D).

Number of patients with Grade 3-5 toxicities during escalation part of Phase I (Cohorts: 50x10\^6 CD19/22 CAR+ T Cells; 50x10\^6 CD19/22 CAR+ T Cells+Pembrolizumab \[Pem\] Day 14; 150-450x10\^6 CD19/22 CAR+ T Cells+Pem Day 14; 150-450x10\^6 CD19/22 CAR+ T Cells+Pem Day -1 in Inpatient Setting) Dose-limiting toxicity defined as: * New non-hematological AE Grade \>=3 using NCI CTCAE (5.0), probably/definitely related to AUTO3, occurring in DLT evaluation period, which did not resolve to Grade 2 or better in 14 days, despite supportive measures. * Grade 4 CRS, neurotoxicity (NT), or cerebral edema, or Grade 3 NT that lasted \>72 hrs * Grade \>3 Disseminated Intravascular Coagulation * Grade \>2 Infusion Reaction with AUTO3 * Grade 4 or 5 event not managed with conventional supportive measures or necessitating dose reduction or modification to trial therapy * Any event that in opinion of Investigator and/or medical monitor put patient at undue risk could also have been considered DLT

Time frame:
Within 75 days of AUTO3 infusion
Reported as:
Number · participants
Phase I Escalation - Safety (Number of Participants With Grade 3-5 Toxicities) and Identification of Recommended Phase II Dose and Schedule (RP2D).
participants50 x 10^6 CD19/CD22 CAR+ T Cells50 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day -1 in an Outpatient Setting
Patients with Grade 3-5 toxicity43713—
Patients with dose-limiting toxicity0000—
PrimaryPhase I Expansion - Safety (Incidence of Grade 3-5 Toxicities) in the Outpatient / Ambulatory Care Setting

The incidence of Grade 3-5 toxicities during the expansion part of Phase I (Dose cohort: 150 to 450 x 10\^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient Setting)

Time frame:
Within 75 days of AUTO3 infusion
Reported as:
Count of participants · Participants
Phase I Expansion - Safety (Incidence of Grade 3-5 Toxicities) in the Outpatient / Ambulatory Care Setting
Participants50 x 10^6 CD19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient Setting
Phase I Expansion - Safety (Incidence of Grade 3-5 Toxicities) in the Outpatient / Ambulatory Care Setting000013
PrimaryPhase II - Overall Response Rate as Per Lugano Criteria

This was not analysed due to study termination prior to initiation of Phase II. End of study notification submitted to Medicines and Healthcare products Regulatory Agency (MHRA) (reference 46113/0003/001-0016) - The Last patient last visit was 19 October 2023 (at end of Phase 1) and the study is considered completed (End of study). As per protocol v10.0, end of study is defined as 36 months after the last patient has received AUTO3 infusion or earlier in the event of death or consent withdrawal. Fifty-two patients received AUTO3 in the Phase I part of the study. After reviewing the data and taking into consideration the available treatment landscape in r/r DLBCL, Autolus didn't progress AUTO3-DB1 into the Phase II part of the study. Autolus notified MHRA on 08 November 2021 about enrolment to Phase II of the study (Autolus has decided not to progress AUTO3-DB1 into the Phase II part of the study), and MHRA acknowledged it on 09 November 2021.

Time frame:
Up to 2 years

No measurements were reported for this outcome.

SecondaryFeasibility of Generating AUTO3: Number of Patients' Cells Successfully Manufactured as a Proportion of the Number of Patients Undergoing Leukapheresis.

Feasibility of product generation was examined by assessing the number of AUTO3 successfully manufactured as a fraction of the number of patients undergoing leukapheresis (all patients enrolled).

Time frame:
Up to 8 weeks post leukapheresis.
Reported as:
Count of participants · Participants
Feasibility of Generating AUTO3: Number of Patients' Cells Successfully Manufactured as a Proportion of the Number of Patients Undergoing Leukapheresis.
ParticipantsAUTO3
Feasibility of Generating AUTO3: Number of Patients' Cells Successfully Manufactured as a Proportion of the Number of Patients Undergoing Leukapheresis.52
SecondaryDetermine the Complete Response Rate Following Treatment With AUTO3, as Per Lugano Criteria.

Participants achieving objective response per Lugano criteria based on independent central radiology review. The Lugano classification of response by 18F-2-fluoro-2-deoxy-D-glucose fluorodeoxyglucose (FDG) PET-CT: 1. no uptake or no residual uptake (when used interim) 2. slight uptake, but below blood pool (mediastinum) 3. uptake above mediastinal, but below or equal to uptake in the liver 4. uptake slightly to moderately higher than liver 5. markedly increased uptake or any new lesion (on response evaluation) Non-progressive disease * complete metabolic response - score of 1, 2 or 3 in nodal or extranodal sites with or without a residual mass * partial metabolic response - score of 4 or 5 with reduced uptake compared with baseline and residual mass(es) of any size * stable disease or no metabolic response - score of 4 or 5 with no obvious change in FDG uptake Progressive disease score 4 or 5 in any lesion with an increase in intensity of FDG uptake from baseline (and/or

Time frame:
Up to 2 years
Reported as:
Count of participants · Participants
Determine the Complete Response Rate Following Treatment With AUTO3, as Per Lugano Criteria.
Participants50 x 10^6 CD19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient Setting
Determine the Complete Response Rate Following Treatment With AUTO3, as Per Lugano Criteria.11488
SecondaryDuration of Response (DOR).

Duration of response was defined as the time from the first observed complete response or partial response \[from the first post-baseline response assessment\] until the date of first progressive disease or death due to underlying cancer (primary reason for death=progressive disease), whichever occurred first. Only responders (patients with complete response \[CR\] or partial response \[PR\]) were included in the analysis of duration of response. Response defined by Lugano classification (see Outcome Measure 5). Patients with death not due to underling cancer (primary reason for death=adverse event \[AE\] or Other or Unknown) or who received new anti-cancer therapy other than SCT or discontinued from the study for other reason than progressive disease (PD) or who were lost to follow-up or reached the time point of analysis without a known record of progression or death had the duration of response censored at the date of last adequate disease assessment for response.

Time frame:
Up to 2 years
Reported as:
Median · months
Duration of Response (DOR).
months50 x 10^6 CD19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient Setting
Duration of Response (DOR).6.31 (1.97 to NA)NA (NA to NA)NA (NA to NA)4.96 (1.91 to NA)NA (NA to NA)
SecondaryProgression-free Survival (PFS).

The progression-free survival was defined as the time from first AUTO3 treatment until the first progression of disease or death from any cause, whichever occurred first. Patients who reached the time point of analysis without a known record of progression had the PFS censored at the date of last adequate disease assessment. Patients who received a new stem cell transplantation (SCT) were censored at the start date of this new SCT. Patients who received a new anti-cancer therapy or discontinued from the study for other reason than disease progression and who were lost to follow-up were censored at the date of last adequate disease assessment. Response defined by Lugano classification (see Outcome Measure 5).

Time frame:
Up to 2 years
Reported as:
Median · months
Progression-free Survival (PFS).
months50 x 10^6 CD19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient Setting
Progression-free Survival (PFS).2.14 (0.76 to NA)2.43 (2.40 to NA)5.67 (0.95 to NA)3.22 (1.87 to NA)3.22 (1.94 to 5.88)
SecondaryOverall Survival (OS).

Overall survival (OS) was defined as the time from the date of first AUTO3 treatment up to the date of death, regardless of cause of death. Patients alive at the time of the analysis had the OS censored at the date of last assessment when the patient was known alive.

Time frame:
Up to 2 years
Reported as:
Median · months
Overall Survival (OS).
months50 x 10^6 CD19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient Setting
Overall Survival (OS).10.04 (0.95 to NA)6.67 (4.93 to NA)5.67 (1.77 to NA)9.17 (3.32 to NA)NA (NA to NA)
Other pre-specifiedTo Determine the Expansion and Persistence of AUTO3 Following Adoptive Transfer in Different Lymphoma Subtypes (Maximum Concentration)

Analysis of cells in peripheral blood by polymerase chain reaction and/or flow cytometry at a range of time points in the peripheral blood.

Time frame:
Up to 2 years
Reported as:
Geometric mean · copies/microgram DNA
To Determine the Expansion and Persistence of AUTO3 Following Adoptive Transfer in Different Lymphoma Subtypes (Maximum Concentration)
copies/microgram DNA50 x 10^6 CD19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient Setting
To Determine the Expansion and Persistence of AUTO3 Following Adoptive Transfer in Different Lymphoma Subtypes (Maximum Concentration)7979.7 (155 to 213000)13157.4 (3900 to 47100)5726.1 (1420 to 11600)4121.4 (174 to 416000)3195.6 (241 to 131000)
Other pre-specifiedTo Determine the Expansion and Persistence of AUTO3 Following Adoptive Transfer in Different Lymphoma Subtypes (Area Under the Curve From Day 0 to Day 28)

Analysis of cells in peripheral blood by polymerase chain reaction and/or flow cytometry at a range of time points in the peripheral blood.

Time frame:
Up to 2 years
Reported as:
Geometric mean · day*copies/microgram DNA
To Determine the Expansion and Persistence of AUTO3 Following Adoptive Transfer in Different Lymphoma Subtypes (Area Under the Curve From Day 0 to Day 28)
day*copies/microgram DNA50 x 10^6 CD19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient Setting
To Determine the Expansion and Persistence of AUTO3 Following Adoptive Transfer in Different Lymphoma Subtypes (Area Under the Curve From Day 0 to Day 28)41511.0 (912 to 2370000)109945.2 (35600 to 478000)38397.9 (3510 to 135000)37722.7 (948 to 571000)32152.1 (1060 to 1930000)
Other pre-specifiedTo Determine the Expansion and Persistence of AUTO3 Following Adoptive Transfer in Different Lymphoma Subtypes (Time to Maximum Concentration)

Analysis of cells in peripheral blood by polymerase chain reaction and/or flow cytometry at a range of time points in the peripheral blood.

Time frame:
Up to 2 years
Reported as:
Median · Days
To Determine the Expansion and Persistence of AUTO3 Following Adoptive Transfer in Different Lymphoma Subtypes (Time to Maximum Concentration)
Days50 x 10^6 CD19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient Setting
To Determine the Expansion and Persistence of AUTO3 Following Adoptive Transfer in Different Lymphoma Subtypes (Time to Maximum Concentration)16.4 (12 to 22)13.9 (11 to 14)9.7 (9 to 35)10.0 (7 to 28)13.1 (7 to 58)

Adverse events

Collected over From AUTO3 infusion (Day -7) until end of study/patient withdrawal OR, when patient initiated a new treatment for their disease (approximately 3 years and 5 months).. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
50 x 10^6 CD19/CD22 CAR+ T Cells3/4 (75%)2/4 (50%)4/4 (100%)
50 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day 142/3 (66.7%)0/3 (0%)3/3 (100%)
150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day 145/8 (62.5%)3/8 (37.5%)8/8 (100%)
150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day -1 in an Inpatient Setting11/17 (64.7%)10/17 (58.8%)15/17 (88.2%)
150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day -1 in an Outpatient Setting6/20 (30%)14/20 (70%)19/20 (95%)
Treatment Not Received6/10 (60%)0/10 (0%)1/10 (10%)
Most frequent serious events
Showing 10 of 44
Most frequent serious events
Event50 x 10^6 CD19/CD22 CAR+ T Cells50 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day -1 in an Outpatient SettingTreatment Not Received
PyrexiaGeneral disorders2/40/30/82/173/200/10
AnaemiaBlood and lymphatic system disorders1/40/30/80/170/200/10
Cytokine release syndromeImmune system disorders1/40/31/81/175/200/10
Depressed level of consciousnessNervous system disorders1/40/30/80/170/200/10
Facial paresisNervous system disorders1/40/30/80/170/200/10
HeadacheNervous system disorders1/40/30/80/170/200/10
HemiparesisNervous system disorders1/40/30/80/170/200/10
NystagmusNervous system disorders1/40/30/80/170/200/10
Radiation pneumonitisInjury, poisoning and procedural complications1/40/30/80/170/200/10
Febrile neutropeniaBlood and lymphatic system disorders0/40/31/82/173/200/10
Most frequent other events
Showing 10 of 180
Most frequent other events
Event50 x 10^6 CD19/CD22 CAR+ T Cells50 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR+ T Cells + Pembrolizumab at Day -1 in an Outpatient SettingTreatment Not Received
Neutrophil count decreasedInvestigations4/43/33/83/172/200/10
Platelet count decreasedInvestigations4/43/33/82/174/200/10
AnaemiaBlood and lymphatic system disorders2/42/36/89/178/200/10
ConstipationGastrointestinal disorders2/42/32/85/170/200/10
PyrexiaGeneral disorders1/42/34/81/175/200/10
NeutropeniaBlood and lymphatic system disorders2/40/34/89/175/200/10
Abdominal painGastrointestinal disorders2/41/30/80/171/200/10
Cytokine release syndromeImmune system disorders2/40/33/84/175/200/10
FatigueGeneral disorders1/41/34/82/178/200/10
HeadacheNervous system disorders2/40/30/85/172/200/10

Baseline characteristics

Sixty-two patients were enrolled. Ten patients did not receive AUTO3 infusion, in 6 patients this was due to death, in 3 patients due to progressive disease (without death), and in 1 patient due to failed eligibility, leaving 52 participants.

Age, Categorical
Age, Categorical(Participants)50 x 10^6 Cluster of Differentiation (CD) 19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient SettingTotal
<=18 years000000
Between 18 and 65 years43771637
>=65 years00110415
Sex: Female, Male
Sex: Female, Male(Participants)50 x 10^6 Cluster of Differentiation (CD) 19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient SettingTotal
Female23771635
Male20110417
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)50 x 10^6 Cluster of Differentiation (CD) 19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient SettingTotal
Hispanic or Latino000156
Not Hispanic or Latino43816940
Unknown or Not Reported000066
Race (NIH/OMB)
Race (NIH/OMB)(Participants)50 x 10^6 Cluster of Differentiation (CD) 19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient SettingTotal
American Indian or Alaska Native000000
Asian000101
Native Hawaiian or Other Pacific Islander000000
Black or African American000134
White438151444
More than one race000000
Unknown or Not Reported000033
Eastern Cooperative Oncology Group (ECOG) score
Eastern Cooperative Oncology Group (ECOG) score(Participants)50 x 10^6 Cluster of Differentiation (CD) 19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient SettingTotal
ECOG = 01179826
ECOG = 132181226
Disease stage
Disease stage(Participants)50 x 10^6 Cluster of Differentiation (CD) 19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient SettingTotal
Stage II001236
Stage III0223411
Stage IV415121335
Relapsed/Refractory disease
Relapsed/Refractory disease(Participants)50 x 10^6 Cluster of Differentiation (CD) 19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient SettingTotal
Relapsed00141116
Refractory0126312
Relapsed and Refractory4257624
Extranodal disease present
Extranodal disease present(Participants)50 x 10^6 Cluster of Differentiation (CD) 19/CD22 CAR-positive T Cells50 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day 14150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Inpatient Setting150 to 450 x 10^6 CD19/CD22 CAR-positive T Cells + Pembrolizumab at Day -1 in an Outpatient SettingTotal
No2236720
Yes215111332

7 further baseline measures are reported on the registry.

08

Study locations

11 sites
  • City of Hope Hospital
    Duarte, California 91010, United States
  • Colorado Blood Cancer Institute at Presbyterian/St. Luke's Medical Center/Sarah Cannon Research Institute
    Denver, Colorado 80218, United States
  • Sylvester Comprehensive Cancer Center / University of Miami
    Miami, Florida 33136, United States
  • Siteman Cancer Center / Washington University School of Medicine
    St Louis, Missouri 63110, United States
  • Memorial Sloan Kettering Cancer Center
    New York, New York 10065, United States
  • TriStar Centennial Medical Center /Sarah Cannon Research Institute
    Nashville, Tennessee 37203, United States
  • St David's South Austin Medical Center /Sarah Cannon Research Institute
    Austin, Texas 78704, United States
  • The Beatson West of Scotland Cancer Centre / Queen Elizabeth University Hospital
    Glasgow, G12 0YN, United Kingdom
  • University College London Hospitals NHS Foundation Trust
    London, United Kingdom
  • Manchester University NHS Foundation Trust
    Manchester, United Kingdom
  • Freeman Hospital, The Newcastle upon Tyne Hospitals NHS Foundation Trust
    Newcastle upon Tyne, United Kingdom
09

References and documents

Publications

  • Roddie C, Lekakis LJ, Marzolini MAV, Ramakrishnan A, Zhang Y, Hu Y, Peddareddigari VGR, Khokhar N, Chen R, Basilico S, Raymond M, Vargas FA, Duffy K, Brugger W, O'Reilly MA, Wood L, Linch DC, Peggs KS, Bachier C, Budde EL, Lee Batlevi C, Bartlett N, Irvine D, Tholouli E, Osborne W, Ardeshna KM, Pule MA. Dual targeting of CD19 and CD22 with bicistronic CAR-T cells in patients with relapsed/refractory large B-cell lymphoma. Blood. 2023 May 18;141(20):2470-2482. doi: 10.1182/blood.2022018598. PubMed 36821767 ↗
  • Ernst M, Oeser A, Besiroglu B, Caro-Valenzuela J, Abd El Aziz M, Monsef I, Borchmann P, Estcourt LJ, Skoetz N, Goldkuhle M. Chimeric antigen receptor (CAR) T-cell therapy for people with relapsed or refractory diffuse large B-cell lymphoma. Cochrane Database Syst Rev. 2021 Sep 13;9(9):CD013365. doi: 10.1002/14651858.CD013365.pub2. PubMed 34515338 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Sep 2017 to primary completion in Oct 2023, 73 months.

Results were first posted in Jul 2025, 1 year 8 months after primary completion.

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

Registered
Sep 11, 2017
First posted
Sep 19, 2017
StartActual
Sep 5, 2017
Primary completionActual
Oct 19, 2023
CompletionActual
Oct 19, 2023
Results first posted
Jul 14, 2025
Last update
Jul 14, 2025
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.
No changes since tracking began. The registry record was last updated on Jul 14, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03287817
Lead sponsor
Autolus Limited
Responsible party
Sponsor
First posted
Sep 19, 2017
Start date
Sep 5, 2017
Primary completion
Oct 19, 2023
Completion
Oct 19, 2023
Results posted
Jul 14, 2025
Last update
Jul 14, 2025

Oversight

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

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