ClinicalTrials.gg
Not yet recruitingNCT06986018Updated May 22, 2025

Clinical Study on the Targeted CD19 Universal CAR-T Cell Injection (RD06-04) for the Treatment of IIM and AAV

An Early Phase 1 interventional study of RD06-04 Cell Injection Infusion in Idiopathic Inflammatory Myopathies and ANCA-Associated Vasculitis, sponsored by Peking University People's Hospital. Not yet recruiting at 1 site in China. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2025-05-22.

Sponsored by Peking University People's Hospital · Early Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2025, 10 months ago, but the record still lists the study as not yet recruiting.
Phase
Early Phase 1
Study type
Interventional
Enrollment
12
Allocation
Not applicable
Ages
18 Years to 70 Years
Sex
All
01

Study summary

This is an open-label, investigator-initiated clinical trial (IIT) designed to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and efficacy of RD06-04 in patients with refractory IIM and AAV. The study plans to enroll a total of 12 participants, with 6 cases each for IIM and AAV. Enrollment for both diseases will proceed in parallel. The dose will be 6×10\^6 CAR+T cells/kg (±30%), and patients will receive a single infusion of RD06-04.

02

Conditions studied

  • Idiopathic Inflammatory Myopathies
  • ANCA-Associated Vasculitis

Keywords

  • CD19-Targeted Universal CAR-T
03

In context

Myositis

215 studies on the registry are indexed under Myositis; 100 are open to participants now.

This study's planned enrollment of 12 is below the median of 30 across 141 interventional studies indexed under Myositis.

Browse Myositis studies →

Lead sponsor

Peking University People's Hospital is the lead sponsor of 609 studies on the registry; 247 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

General Inclusion Criteria:

  1. The subject voluntarily participates in this trial and has signed the form.
  2. Age ≥18 years and ≤70 years, regardless of gender.
  3. Organ Function and Laboratory Tests:

    1. Liver Function: (ALT) and aspartate aminotransferase (AST) ≤3× (ULN), total (TBIL) ≤2×ULN (except for Gilbert syndrome).
    2. Renal Function: Creatinine ≤1.5×ULN or ≥40 ml/min.
    3. Blood Routine: ≥1×10\^9/L, ≥60 g/L, count ≥50×10\^9/L, lymphocyte count >0.3×10\^9/L.
    4. Coagulation Function: (INR) ≤1.5×ULN, or prothrombin time (PT) ≤1.5×ULN.
    5. Oxygen saturation (SpO2) ≥92% at rest while breathing room air.
    6. Echocardiography shows (LVEF) ≥50%.
  4. Female subjects of must have a negative serum or urine pregnancy test result during screening.
  5. Females of childbearing potential must agree to use highly effective from at least 28 days before the start of lymphodepletion until 12 months after the infusion of RD06-04. Males of must agree to use an effective barrier method of contraception from the start of lymphodepletion until 12 months after the infusion of RD06-04 and must not donate semen or sperm during the entire trial period.

For IIM participants:

  1. Diagnosed with IIM (including probable or definite diagnosis, i.e., a probability of ≥55%) according to the 2017 ACR/EULAR classification criteria. Currently, the ENMC considers that the subtypes of IIM mainly include dermatomyositis (DM), antisynthetase syndrome (ASS), and immune-mediated necrotizing myopathy (IMNM).

For AAV participants:

  1. Meets the diagnostic criteria for ANCA-associated vasculitis as established by the 2022 ACR/EULAR, including microscopic polyangiitis (MPA), granulomatosis with polyangiitis (GPA), and eosinophilic granulomatosis with polyangiitis (EGPA).

Exclusion Criteria:

  1. As determined by the investigator, the primary diagnosis is a rheumatic disease other than the disease under study, which the investigator believes may confound the efficacy evaluation of the study disease.
  2. central nervous system disease or pathological changes not caused by the non-study disease within 12 months prior to screening.
  3. History of allogeneic bone marrow or stem cell transplantation or solid organ transplantation (such as kidney, lung, heart, liver) or plans for such transplantation in the future.
  4. For IIM patients: Presence of severe rhabdomyolysis or CK levels ≥120×ULN at screening.
  5. History of, or current significant cardiovascular dysfunction.
  6. History of within 5 years prior to signing the ICF.
  7. Pregnant or breastfeeding women.
  8. History of recurrent infections requiring hospitalization and intravenous antibiotics (e.g., three or more episodes of the same type of infection within the past year).
  9. Positive for surface antigen (HBsAg), or positive for hepatitis B core antibody (HBcAb) with detectable hepatitis B virus (HBV) DNA in peripheral blood; positive for virus (HCV) antibody with detectable HCV RNA in peripheral blood; positive for (HIV) antibody; positive for syphilis antibody.
  10. History of drug or alcohol abuse within 1 year prior to screening.
  11. Any condition that, in the investigator's opinion, may affect study participation, pose a safety risk to the patient, or potentially confound the interpretation of study results.
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.

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.

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.

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.

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.

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.

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.

Reproductive potential

Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.

Criteria about it usually ask for contraception during the study and for a time after 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.

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.

05

Study design

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

Study arms

  • Experimental
    RD06-04 Cell Injection

    Drug: RD06-04 Cell Injection Infusion

Interventions

  • CAR T-cell therapy administered intravenously after a lymphodepleting therapy regimen consisting of fludarabine and cyclophosphamide.

06

What researchers measure

Primary outcomes

  1. Adverse Events (TEAE), Serious Adverse Events (SAE), Adverse Events of Special Interest (AESI)

    Time frame: Up to 2 years

Secondary outcomes

  1. The proportion of patients with kidney involvement achieving complete kidney remission (CRR)

    Time frame: At weeks 12, and months 6, 12, 18, and 24 following CAR-T infusion.

  2. The change in UPCR from baseline in patients with kidney involvement.

    Time frame: At weeks 2, 4, 8, 12, and at months 6, 9, 12, 18, and 24 following CAR-T infusion.

  3. The change in eGFR (estimated glomerular filtration rate) from baseline in patients with kidney involvement.

    Time frame: At weeks 2, 4, 8, 12, and at months 6, 9, 12, 18, and 24 following CAR-T infusion.

  4. The change in BVAS score from baseline in AAV patients

    Birmingham Vasculitis Activity Score (BVAS) has a minimum score of 0 and a theoretical maximum score exceeding 100 (depending on the number and severity of affected organ systems). A higher score indicates stronger disease activity and a worse prognosis, while a decrease in score (especially to \<5) typically suggests effective treatment.

    Time frame: At 6, 12, 18, and 24 months following CAR-T infusion.

  5. IIM patients were assessed for major clinical remission (Total Improvement Score, TIS) according to the 2016 ACR /EULAR criteria for myocarditis remission.

    Total Improvement Score (TIS) has a minimum score of 0 (indicating no improvement) and a maximum score of 100 (indicating maximal improvement). A higher score represents more significant disease improvement and better treatment efficacy.

    Time frame: At 6, 12, 18, and 24 months following CAR-T infusion.

  6. The change in FACIT-Fatigue from baseline.

    Functional Assessment of Chronic Illness Therapy-Fatigue Scale (FACIT-Fatigue) has a minimum score of 0 and a maximum score of 52. A higher score indicates less severe fatigue and better quality of life.

    Time frame: At 6, 12, 18, and 24 months following CAR-T infusion.

  7. Assessment of the peak amplification level (Cmax), area under the concentration-time curve (AUC0-28), and persistence profile of RD06-04.

    Time frame: Up to 2 years

  8. The change in HAQ-DI from baseline.

    Health Assessment Questionnaire-Disability Index (HAQ-DI) has a minimum score of 0 and a maximum score of 3. A higher score indicates more severe physical dysfunction and worse quality of life.

    Time frame: At 6, 12, 18, and 24 months following CAR-T infusion.

  9. Assessment of the incidence and titer levels of anti-RD06-04 specific anti-drug antibodies (ADA).

    Time frame: Up to 2 years

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Jun 2025; primary completion for Dec 2025, 6 months later.

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

Registered
Apr 13, 2025
First posted
May 22, 2025
StartEst.
Jun 14, 2025
Primary completionEst.
Dec 31, 2025
CompletionEst.
Dec 31, 2026
Last update
May 22, 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 May 22, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06986018
Responsible party
Zhanguo Li (Director of the Rheumatology and Immunology Department, Peking University People's Hospital) — Principal investigator
First posted
May 22, 2025
Start date
Jun 14, 2025 (estimated)
Primary completion
Dec 31, 2025 (estimated)
Completion
Dec 31, 2026 (estimated)
Last update
May 22, 2025

Study contacts

ZhanGuo Li, Doctor
Contact
1i99@bjmu.edu.cn
010-88324073

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: RD06-04

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