ClinicalTrials.gg
RecruitingNCT06828042Updated Sep 22, 2026

Safety and Efficacy of Universal CD19-targeting CAR-γδT Cells in Refractory Autoimmune Diseases

A Phase 1/2 interventional study of anti-CD19 CAR T cell therapy in Systemic Lupus Erthematosus, Systemic Sclerosis (SSc) and Sjogren Syndrome, sponsored by Peking University Third Hospital. Recruiting at 1 site in China. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-09-22.

Sponsored by Peking University Third Hospital · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Started Jul 2025; still recruiting 1 year 4 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
9
Allocation
Not applicable
Ages
18 Years to 80 Years
Sex
All
01

Study summary

Autoimmune diseases refer to a common category of diseases caused by the immune system reacting to self-antigens, leading to tissue damage. Autoimmune diseases encompass a wide variety of conditions, such as systemic lupus erythematosus(SLE), Sjögren's syndrome (SS), systemic sclerosis (SSc), inflammatory myopathies (IM), ANCA-associated vasculitis (AAV), and antiphospholipid syndrome (APS). They affect the quality of life, while in severe cases, they can be life-threatening. Additionally, they impose a heavy economic burden on society. Current treatments for autoimmune diseases include glucocorticoid, immunosuppressants, and biologics. B cell-driven humoral immune abnormalities are a central pathogenic mechanism in many autoimmune diseases. When autoreactive B cells are excessively activated, they produce large amounts of autoantibodies and immune complexes. These antibodies and immune complexes can cause damage to various tissues and organs, leading to the development of multiple autoimmune diseases. Therefore, targeting B cells to treat autoimmune diseases is an attractive therapeutic strategy.

Chimeric Antigen Receptor (CAR)-T cells targeting the B cell surface molecule CD19 have achieved significant clinical progress in acute lymphoblastic leukemia and B cell non-Hodgkin lymphoma, with several CD19 CAR-T therapies approved for marketing worldwide. Increasingly, clinical studies are exploring the use of CD19 CAR-T cells for the treatment of autoimmune diseases, and their therapeutic efficacy has been demonstrated.

In this study, the investigators used γδ T cells as carrier cells to investigate the safety and efficacy of universal CAR-γδ T cells in the treatment of autoimmune diseases.

02

Conditions studied

  • Systemic Lupus Erthematosus
  • Systemic Sclerosis (SSc)
  • Sjogren Syndrome
  • ANCA Associated Vasculitis (AAV)
  • Inflammatory Myopathies
  • Antiphospholipid Syndrome
03

In context

Scleroderma, Systemic

610 studies on the registry are indexed under Scleroderma, Systemic; 218 are open to participants now.

This study's planned enrollment of 9 is below the median of 37 across 446 interventional studies indexed under Scleroderma, Systemic.

Browse Scleroderma, Systemic studies →

Lead sponsor

Peking University Third Hospital is the lead sponsor of 752 studies on the registry; 273 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

Inclusion criteria

Common Inclusion Criteria:

  1. Age between 18-80 years (inclusive), male or female.
  2. Positive expression of CD19 on peripheral blood B cells by flow cytometry.
  3. Diagnosed with disease, defined as: Ineffectiveness of conventional treatment for more than 6 months, or Disease activity recurrence after remission. Definition of conventional treatment: Use of and any of the following or biologics: cyclophosphamide, azathioprine, mycophenolate mofetil, methotrexate, leflunomide, tacrolimus, cyclosporine, rituximab, belimumab, telitacicept, etc.
  4. Currently receiving one or more standard therapies at a stable dose, including glucocorticoids, antimalarials, immunosuppressants, or biologics. If the subject is receiving glucocorticoids, the following conditions must be met: During screening and the screening period, the maximum dose of glucocorticoids is 30 mg/day prednisone (or an equivalent dose). The glucocorticoid dose must remain stable for ≥7 days before screening, and during the screening period, the dose adjustment must not exceed >5 mg/day prednisone (or an equivalent dose). If the subject is receiving antimalarials and/or conventional immunosuppressants: The treatment must have started ≥12 weeks before screening. The medication dose must remain stable for ≥8 weeks before screening and throughout the screening period. Before cell infusion, other immunosuppressants (excluding hydroxychloroquine), including belimumab, telitacicept, CD20 monoclonal antibodies, or other biologic immunosuppressants, must be discontinued for at least 5 half-lives.
  5. Female participants of and male participants with female partners of childbearing potential must use medically approved methods or practice abstinence during the study treatment period and for at least 6 months after the study. Female participants of childbearing potential must have a negative serum HCG test within 7 days before enrollment and must not be breastfeeding.
  6. Willing to participate in the trial and sign the form.

Disease-Specific Inclusion Criteria:

  1. Systemic Lupus Erythematosus (SLE):

    • Meets the 2019 EULAR/ACR classification criteria for SLE.
    • ANA titer ≥1:80, or positive for anti-dsDNA and/or anti-Sm antibodies.
    • Disease activity score (SLEDAI-2000) ≥8.
  2. Sjögren's Syndrome:

    • Meets the 2002 AECG criteria or the 2016 ACR/EULAR classification criteria for primary Sjögren's syndrome.
    • Disease activity score (ESSDAI) ≥5.
    • Positive for anti-SSA/Ro antibodies.
  3. Systemic Sclerosis (SSc):

    • Meets the 2013 EULAR/ACR classification criteria for systemic sclerosis.
    • Classified by Leroy and Medsger as limited or diffuse cutaneous subsets.
    • At screening, mRSS >10; and/or active interstitial lung disease (ILD), defined as: High-resolution computed tomography (HRCT) showing ground-glass opacities. Pulmonary function tests (FVC or DLCO) \<70% of predicted values.
  4. Idiopathic Inflammatory Myopathies (IIM):

    • Meets the 2017 EULAR/ACR classification criteria for inflammatory myopathies (including dermatomyositis, polymyositis, antisynthetase syndrome, and necrotizing myopathy).
    • For patients with muscle involvement: a. MMT-8 score \<142 and at least two abnormal findings among the following core measures: PhGA or PtGA scores ≥2. Extramuscular disease activity score ≥2. HAQ total score ≥0.25. Muscle enzyme levels ≥1.5 times the upper normal limit. b. Alternatively, MMT-8 ≥142 but with active ILD (HRCT showing ground-glass opacities).
    • Positive for myositis-specific antibodies.
  5. ANCA-Associated Vasculitis (AAV):

    • Meets the 2022 ACR/EULAR diagnostic criteria for ANCA-associated vasculitis, including microscopic polyangiitis, granulomatosis with polyangiitis, or eosinophilic granulomatosis with polyangiitis.
    • Positive for ANCA antibodies (current or historical).
    • Birmingham Vasculitis Activity Score (BVAS) ≥15 (out of 63), indicating active vasculitis.
  6. Refractory Antiphospholipid Syndrome (APS):

    • Meets the 2023 ACR/EULAR diagnostic criteria for antiphospholipid syndrome.
    • Positive for medium-to-high titers of antiphospholipid antibodies (LA, anti-β2-GP1, or ACL IgG/IgM), with at least two positive results within 3 months.
    • Definition of refractory APS: Disease remains active or relapses after remission, despite 6 months of conventional therapy, including: Anticoagulants (warfarin or standard treatment with vitamin K antagonists maintaining target ) or low-molecular-weight heparin at standard doses. Glucocorticoids and/or immunosuppressants.
    • Catastrophic APS (CAPS): Must meet all four criteria: a. Involvement of three or more organs, systems, and/or tissues. b. Symptoms occurring within one week. c. Histological evidence of small vessel occlusion in at least one organ or tissue. d. Positive for antiphospholipid antibodies (aPL).

Note: Meeting either criterion 3 or 4 is sufficient. Patients with thrombocytopenia may not require anticoagulant therapy.

Exclusion criteria

Exclusion Criteria:

  1. History of severe drug allergies or allergic constitution.
  2. Presence or suspicion of uncontrolled or treatment-requiring fungal, bacterial, viral, or other infections.
  3. Central nervous system (CNS) diseases caused by or non-autoimmune conditions, including epilepsy, psychiatric disorders, organic brain syndrome, cerebrovascular accidents, encephalitis, or CNS vasculitis.
  4. Dysfunction of major organs not meeting the following criteria (exceptions allowed if abnormalities are caused by autoimmune disease): a. Bone marrow function: White blood cell count ≥3×10⁹/L. ≥1×10⁹/L (without GSF treatment within 2 weeks prior to testing). ≥60 g/L. count ≥50×10⁹/L. b. Liver function: ≤3× (exceptions for ALT elevation caused by inflammatory myopathy). AST ≤3×ULN (exceptions for AST elevation caused by inflammatory myopathy). IBIL ≤1.5×ULN (exceptions for Gilbert's syndrome). Total ≤3.0×ULN. c. Renal function: (CrCl) ≥30 mL/min (calculated using the Cockcroft/Gault formula, exceptions for acute CrCl decline caused by the disease itself). d. Coagulation function: (INR) ≤1.5×ULN. Prothrombin time (PT) ≤1.5×ULN. e. Cardiac function: Stable hemodynamics.
  5. Subjects with congenital immunoglobulin deficiencies.
  6. History of within the past five years.
  7. Subjects with positive surface antigen (HBsAg) or hepatitis B core antibody (HBcAb) and peripheral blood HBV DNA levels exceeding the detection limit; positive virus (HCV) antibodies with detectable HCV RNA in peripheral blood; positive antibodies; or positive syphilis test results.
  8. Subjects with psychiatric disorders or severe cognitive impairment.
  9. Participation in other clinical trials within 3 months prior to enrollment.
  10. Previous treatment with CAR-T therapy.
  11. History of severe adverse reactions to cyclophosphamide or fludarabine.
  12. Any other reason that the investigator determine that subjects cannot be included in this study.
Terms in these criteria, in plain language(19)

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.

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.

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.

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.

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.

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.

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.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

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.

ALT and AST (liver enzymes)

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

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

ULN (upper limit of normal)

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

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

Bilirubin

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

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

Creatinine clearance (CrCl)

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

Cancer (malignancy)

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

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

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

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

Study arms

  • Experimental
    anti-CD19 CAR-γδ T

    Biological: anti-CD19 CAR T cell therapy

Interventions

  • Biologicalanti-CD19 CAR T cell therapy

    anti-CD19 CAR-γδ T cell therapy

06

What researchers measure

Primary outcomes

  1. Safety of QH103(anti-CD19 CAR-γδT cells)

    Incidence of Treatment-Emergent Adverse Events (AEs) in this study. AEs are defined as any adverse medical events occurring from the initiation of lymphodepleting chemotherapy to 12 months after the completion of QH103 cell infusion. The incidence, duration, severity, and management of all adverse events occurring after the participants' enrollment will be recorded and evaluated.Cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome (ICANS) will be graded according to the American Society for Transplantation and Cellular Therapy (ASTCT) criteria. Graft-versus-host disease (GVHD) will be graded based on the criteria defined by the Mount Sinai Acute GVHD International Consortium. Other AEs will be graded according to the Common Terminology Criteria for Adverse Events (CTCAE, v5.0).

    Time frame: 0-Month 12

  2. Maximum tolerated dose of CD19 CAR-γδT cells

    Dose-limiting toxicity after cell infusion

    Time frame: 28 days

Secondary outcomes

  1. Systemic Lupus Erythematosus Disease Activity Index (SLEDAI-2000) score

    The change from baseline in the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI-2000) score at Month 3, 6, 9, and 12.

    Time frame: Month 3, 6, 9, and 12

  2. SRI-4 response

    SLE patients who met all three of the following conditions at month3,6,9, and 12 after infusion, achieve SRI-4 response: 1. The SLEDAI-2K rating dropped by at least 4 points 2. No deterioration in PGA scores on a 3-point scale (deterioration is defined as an increase of ≥0.3 points from baseline score) 3. No new manifestations of organ system involvement (new system involvement is defined as one or more new symptoms of BILAG grade A or two or more symptoms of BILAG B)

    Time frame: month 3, 6, 9, and 12

  3. Sjögren's Tool for Assessing Response (STAR) score

    The changes from baseline in the Sjögren's Tool for Assessing Response (STAR) score at Month 3, 6, 9, and 12.

    Time frame: Month 3, 6, 9, and 12.

  4. EULAR Sjögren's Syndrome Disease Activity Index (ESSDAI)

    The changes from baseline in the EULAR Sjögren's Syndrome Disease Activity Index (ESSDAI) at Month 3, 6, 9, and 12.

    Time frame: Month 3, 6, 9, and 12

  5. EULAR Sjögren's Syndrome Patient Reported Index (ESSPRI)

    The changes from baseline in the EULAR Sjögren's Syndrome Patient Reported Index (ESSPRI) at Month 3, 6, 9, and 12.

    Time frame: Month 3, 6, 9, and 12

  6. Systemic Sclerosis Combined Response Index (CRISS) response

    Patients achieve Systemic Sclerosis Combined Response Index (CRISS) response Month 3, 6, 9, and 12. A responder meets all of the following criteria; otherwise, they are classified as a non-responder. 1. Improvement in at least two aspects (≥ 5% increase in ppFVC and/or ≥ 25% decrease in mRSS, HAQ-DI, PtGA, or PhGA); 2. Worsening in no more than one aspect (≥ 5% decrease in ppFVC and/or ≥ 25% increase in mRSS, HAQ-DI, PtGA, or PhGA); 3. No significant new SSc-related manifestations.

    Time frame: Month 3, 6, 9, and 12

  7. Modified Rodnan Skin Score (mRSS)

    The changes from baseline in the modified Rodnan Skin Score (mRSS) at Month 3, 6, 9, and 12.

    Time frame: Month 3, 6, 9, and 12

  8. Total Improvement Score (TIS)

    For IM patients with a baseline MMT-8 score \<142, the changes from baseline in Total Improvement Score (TIS) based on the Myositis Response Criteria, which includes changes in the physician's global assessment, the patient's global assessment, the health assessment questionnaire (SF-36), manual muscle testing (MMT-8), muscle enzymes, and extramuscular disease activity at month 3, 6, 9, and 12.

    Time frame: Month 3, 6, 9, and 12

  9. Improvement in interstitial lung disease

    For IM patients with a baseline MMT-8 score ≥142, the assessment of improvement in interstitial lung disease, defined as an increase of ≥10% in forced vital capacity (FVC) or diffusing capacity for carbon monoxide (DLCO) compared to baseline at Month 3, 6, 9, and 12.

    Time frame: Month 3, 6, 9, and 12

  10. Vasculitis disease activity assessment (BVAS score)

    The changes from baseline in vasculitis disease activity assessment (BVAS score) for patients with AAV at Month 3, 6, 9, and 12

    Time frame: Month 3, 6, 9, and 12

  11. Vasculitis Damage Index (VDI)

    The changes from baseline in the Vasculitis Damage Index (VDI) for AAV patients at Month 3, 6, 9, and 12.

    Time frame: Month 3, 6, 9, and 12

  12. Newly developed, imaging-confirmed thrombosis in APS patients

    Newly developed, imaging-confirmed thrombosis in APS patients at Month 3, 6, 9, and 12.

    Time frame: Month 3, 6, 9, and 12

  13. Platelet count for APS patients

    The changes from baseline in platelet count for APS patients at Month 3, 6, 9, and 12.

    Time frame: Month 3, 6, 9, and 12

  14. PD parameters

    The Changes from baseline of level IL-6 in peripheral blood after infusion of QH103

    Time frame: 0-Month 3

  15. PK-Tmax

    Time to peak in CAR-T cell count in peripheral blood after infusion of QH103.

    Time frame: 0-Month 3

  16. PK-Cmax

    Peak concentration (Cmax) in the CAR-T cell count in peripheral blood after infusion of QH103

    Time frame: 0-Month 3

  17. PK-AUC

    Area under the concentration-time curve of CAR-T cell count in peripheral blood after infusion of QH103 from 0 to 3 months

    Time frame: 0-Month 3

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided — No decision has been made regarding the issue

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Jul 2025 (actual). Primary completion is estimated for Dec 2027, 29 months after the start.

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

Registered
Feb 4, 2025
First posted
Feb 14, 2025
StartActual
Jul 1, 2025
Primary completionEst.
Dec 31, 2027
CompletionEst.
Dec 31, 2027
Last update
Sep 22, 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.
No changes since tracking began. The registry record was last updated on Sep 22, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06828042
Responsible party
Sponsor
First posted
Feb 14, 2025
Start date
Jul 1, 2025
Primary completion
Dec 31, 2027 (estimated)
Completion
Dec 31, 2027 (estimated)
Last update
Sep 22, 2026

Study contacts

Xiaoying Zhang
Contact
zhang_xiaoying@pku.edu.cn
86+13810001444
Xiaoying Zhang
Contact

Oversight

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

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