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Autoimmune DiseasesEarly Phase 1NCT07674147

RD06-05 Universal CD19/BCMA CAR-T for Refractory Pediatric Autoimmune Diseases

A Early Phase 1 study testing RD06-05 CART Cell Infusion in people with Autoimmune Diseases and SLE - Systemic Lupus Erythematosus, run by The Children's Hospital of Zhejiang University School of Medicine at 2 sites in China.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

This is a single-arm, open-label, phase I clinical study to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and efficacy of RD06-05, a universal CD19/BCMA dual-targeting chimeric antigen receptor T-cell (CAR-T), in pediatric and adolescent patients with refractory autoimmune diseases, including… Read more about this study

Who is it for?
Ages 5 to 20 years
What is being tested?
RD06-05 CART Cell Infusion
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
2 sitesChina
Study dates
Jul 2026to Jul 2030
Phase
Early Phase 1
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 5 to 20 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Voluntary participation with signed informed consent from patient or legal guardian.
  • Age >=5 to <20 years, male or female.
  • Important organ function meeting the following requirements (excluding abnormalities related to autoimmune disease activity): a) Bone marrow: ANC >=1.0x10^9/L, hemoglobin >=60 g/L, platelets >=30x10^9/L; b) Liver: ALT <=3xULN (except IIM-related elevation), AST <=3xULN, total bilirubin <=2xULN (<=3xULN for Gilbert syndrome); c) Kidney: eGFR >=30 mL/min/1.73m^2 (lower eGFR or on renal replacement may be allowed if benefit > risk by investigator judgment); d) Cardiac: LVEF >=55% by echocardiogram; e) Pulmonary: No severe lung disease, SpO2 >=92%.
  • Negative serum or urine pregnancy test for females of childbearing potential at screening.
  • Females of childbearing potential must use highly effective contraception from at least 28 days before lymphodepletion through 12 months post-infusion. Males must use effective barrier contraception and not donate sperm from start of lymphodepletion through 12 months post-infusion.
  • Disease-Specific Inclusion Criteria for SLE/LN:
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  • Diagnosis of SLE by 2019 EULAR/ACR or 2012 SLICC criteria.
  • If renal involvement: kidney biopsy within 2 years showing active nephritis (class III, IV, V, or combination). Renal involvement defined as proteinuria >0.15g/24h, or hematuria, or eGFR <90.Inadequate response to standard therapy: high-dose glucocorticoid (>=1 mg/kg/d prednisone equivalent) + hydroxychloroquine + at least 2 DMARDs for 3 months, or intolerance, or unable to taper steroid to <=5 mg/day at 6 months.
  • Positive ANA, anti-dsDNA, or anti-Smith antibody.
  • SLEDAI-2K >=8 and clinical SLEDAI-2K >=4 (renal proteinuria >0.5g/24h or UPCR >500 mg/g or active urinary sediment may waive the clinical SLEDAI-2K requirement).
  • Physician Global Assessment (PGA) >=1.0 (0-3 VAS).
  • Disease-Specific Inclusion Criteria for SSc:
  • Diagnosis of SSc by 2013 ACR/EULAR criteria.
  • Diffuse cutaneous SSc.
  • Evidence of active disease (e.g., new SSc within 2 years, new skin involvement or worsening mRSS within 6 months, tendon friction rubs, lung function decline, ILD progression).
  • FVC >=50% and DLCO >=45% predicted.
  • Failed or relapsed on conventional therapy (glucocorticoid >0.5 mg/kg/d prednisone equivalent + at least two immunomodulators for >6 months).
  • Disease-Specific Inclusion Criteria for IIM:
  • Diagnosis of IIM (dermatomyositis, antisynthetase syndrome, IMNM) by 2017 ACR/EULAR criteria (probability >=55%).
  • Active disease: at least 2 of 6 core set abnormalities (MMT-8<142, PhGA >=2 cm, PtGA >=2 cm, extra-muscular MDAAT >=2 cm, PedsQL >=60, CK >=1.5xULN).
  • Positive myositis-specific autoantibody.
  • Failed or relapsed on conventional therapy (glucocorticoid >1 mg/kg/d prednisone equivalent + at least 2 immunomodulators for >=6 months).
  • Disease-Specific Inclusion Criteria for IgAN:
  • Biopsy-confirmed IgA nephropathy.
  • On ACEi/ARB for >=3 months, and at least one of: a) proteinuria >=500 mg/24h or UPCR >=0.5 mg/mg after >=3 months of steroid + at least one immunosuppressant/biologic; b) eGFR decline >50% within 3 months; c) 22.intolerance to conventional therapy with benefit > risk.
  • Disease-Specific Inclusion Criteria for MDR-NS:
  • 23.Meets 2025 KDIGO definition of steroid-resistant nephrotic syndrome. 24.At least one of: a) failed to achieve remission after 12 months of two different mechanism steroid-sparing agents (at least one calcineurin inhibitor); b) no remission after 3-6 months of one CNI with benefit > risk; c) intolerance to conventional therapy; d) coexisting systemic disease requiring long-term immunosuppression.
  • 25.Prior kidney biopsy showing minimal change disease (MCD) or focal segmental glomerulosclerosis (FSGS).

Who cannot join

  • Co-existing autoimmune disease that may interfere with disease activity attribution or add safety risk (unless stable >=3 months and approved).
  • Prior B-cell/ASC depletion therapy: a) Anti-CD20 or T-cell engager within 3 months (allowed if >3-6 months and CD19+ B-cells > LLN); b) Prior CD19 and BCMA dual-targeted therapy, or CD19 or BCMA targeted therapy within 6 months (allowed if >6 months and B-cells > LLN); c) Other B-cell/ASC targeted therapies require approval.
  • Rapidly progressive glomerulonephritis (RPGN): >=50% crescents on biopsy, or doubling of serum creatinine within 2 months, or investigator judgment.
  • Cardiac disease: NYHA class III/IV heart failure, MI, angioplasty/stent, unstable angina, or other severe cardiac disease within 12 months.
  • Severe CNS disease (traumatic brain injury, impaired consciousness, epilepsy, cerebrovascular ischemia/hemorrhage) that may affect compliance or assessment.
  • Malignancy history except cured non-melanoma skin cancer or carcinoma in situ, unless disease-free for >=3 years.
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  • Primary immunodeficiency.
  • Uncontrolled infection (simple UTI or upper respiratory infection allowed).
  • Known history of HIV, hepatitis C, or syphilis infection.
  • Active or latent hepatitis B infection.
  • Positive EBV or CMV DNA or IgM at screening.
  • History of recurrent tuberculosis.
  • Prior CAR-T or other transgenic immune cell therapy.
  • Live attenuated vaccine within 4 weeks before enrollment.
  • Allergy to any component of the cell therapy product.
  • Hypersensitivity to tacrolimus or prior grade >=3 tacrolimus-related toxicity requiring hospitalization (exceptions may be approved).
  • Participation in another clinical trial within 30 days before screening.
  • Pregnancy, breastfeeding, or unwillingness to use effective contraception.
  • Any other condition judged by investigator as unsuitable for study.
  • Disease-Specific Exclusion Criteria for SLE:
  • Active/unstable neuropsychiatric lupus (seizures, psychosis, organic brain syndrome, CVA, encephalitis, CNS vasculitis) within 90 days requiring intervention.
  • Prior treatments: belimumab/telitacicept within 4 weeks; ianalumab within 8 weeks unless B-cells > LLN; >1 systemic NSAID within 14 days; inability to wash out NSAID before disease activity assessment; intra-articular/IM glucocorticoid within 6 weeks; immunosuppressant doses above specified limits; initiation or dose change of hydroxychloroquine within 8 weeks; ACEi/ARB/SGLT2 inhibitor dose change within 4 weeks.
  • Disease flare requiring increased corticosteroids (>20 mg/day prednisone equivalent) or new immunosuppression during screening.
  • Disease-Specific Exclusion Criteria for IIM:
  • Severe rhabdomyolysis or CK >=20xULN.
  • FVC <=60% predicted, or DLCO <=70% predicted, or worsening lung function compared to prior 3-12 months.
  • Disease-Specific Exclusion Criteria for SSc:
  • Anti-centromere antibody positive without ATA or anti-RNAP3.
  • Clinically significant respiratory disease other than ILD (severe COPD, severe asthma, recent severe respiratory infection, smoking).
  • FVC <50% or DLCO <40% predicted.
  • On lung transplant list or expected within 12 months.
  • History of scleroderma renal crisis within 6 months.
  • SSc-like disorders (morphea, eosinophilic fasciitis, etc.).
  • Antifibrotic drugs within 4 weeks (colchicine, D-penicillamine, pirfenidone, tyrosine kinase inhibitors).
  • Prior chlorambucil, bone marrow transplant, or total lymphoid irradiation.
  • Disease-Specific Exclusion Criteria for IgAN:
  • Secondary IgAN (cirrhosis, celiac disease, HIV, malignancy).
  • Other cause of chronic kidney disease (diabetic nephropathy, other primary glomerulopathy) that may interfere.
  • Uncontrolled blood pressure.
  • Prior treatments: hydroxychloroquine dose change within 8 weeks; biologics (infliximab, eculizumab, canakinumab) within 4 weeks; prednisone >30 mg/day or unstable dose; endothelin receptor antagonist within 4 weeks before lymphodepletion.
  • Disease-Specific Exclusion Criteria for MDR-NS:
  • Secondary nephrotic syndrome/proteinuria (infection-related, drug-related, systemic disease) that may interfere.
  • On maintenance dialysis, need for immediate renal replacement, or expected dialysis/transplant within 12 months.
  • Prior treatments: ACEi/ARB dose change within 4 weeks; glucocorticoid dose adjustment within 2 weeks or need for >10 mg/day prednisone equivalent; 40.disease flare requiring increased steroids (>10 mg/day) or new immunosuppression during screening.

Trial locations and contacts

2 sites in 1 country. Contact the study team or a site near you to ask about taking part.

China2 sites
  • Children's Hospital, Zhejiang University School of Medicine

    Hangzhou, Zhejiang, 310052

    Jianhua Mao, +86 13516819071, maojh88@zju.edu.cn

  • Nanjing Children's Hospital

    Nanjing, Jiangsu, 210000

    Haiguo Yu, 025-83117500, njetyy@njch.com.cn

Other trials in China

About this study

Official title: A Clinical Study of the Safety, Efficacy, and Pharmacokinetics of Universal CD19/BCMA-Targeted CAR-T Cell Injection for the Treatment of Autoimmune Diseases in Children and Adolescents

This is a single-arm, open-label, phase I clinical study to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and efficacy of RD06-05, a universal CD19/BCMA dual-targeting chimeric antigen receptor T-cell (CAR-T), in pediatric and adolescent patients with refractory autoimmune diseases, including systemic lupus erythematosus/lupus nephritis (SLE/LN), systemic sclerosis (SSc), idiopathic inflammatory myopathy (IIM), multidrug-resistant nephrotic syndrome (MDR-NS), and refractory IgA nephropathy (IgAN).

Approximately 30 eligible patients will be enrolled and receive a single intravenous infusion of RD06-05 at an initial dose of 6×10⁶ CAR+ T cells/kg, with a potential dose escalation to 10×10⁶ CAR+ T cells/kg following review by a Safety Review Committee (SRC).

Read the detailed description

Study Duration:

Approximately 4 years (2026-2030), with individual participant participation lasting up to 24 months post-infusion.

Follow-up:

Patients are followed for safety, efficacy, PK/PD, and quality of life assessments at predefined time points through 24 months post-infusion.

Key Endpoints:

Primary: Incidence of TEAEs, SAEs, and AESIs (including cytokine release syndrome, ICANS, GvHD, infections, and secondary malignancies).

Secondary: Disease-specific response rates (e.g., LLDAS/DORIS for SLE/LN, mRSS for SSc, MMT-8 for IIM, UPCR for IgAN, remission for MDR-NS), changes in eGFR, autoantibody levels, quality of life (PedsQL 4.0), CAR-T expansion (Cmax, AUC0-28), persistence, and anti-drug antibody incidence.

Exploratory: B-cell aplasia duration and B-cell subset reconstitution.

Being tested
RD06-05 CART Cell Infusion
Medical subject headings
Autoimmune Diseases, Lupus Erythematosus, Systemic, Glomerulonephritis, IGA, Nephrotic Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • RD06-05 CART Cell InfusionDrug

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

Study groups in NCT07674147
Study groupRoleWhat they receive
RD06-05 Universal CAR-T TherapyExperimentalSingle-arm, open-label: participants receive a single intravenous infusion of RD06-05 (universal CD19/BCMA dual-targeting CAR-T cells) following a lymphodepleting regimen of fludarabine and cyclophosphamide.
Receives: Drug: RD06-05 CART Cell Infusion

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of Treatment-Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), and Adverse Events of Special Interest (AESIs)

    Incidence of TEAEs, SAEs, and AESIs following RD06-05 infusion. AESIs include cytokine release syndrome (CRS) of grade ≥3, immune effector cell-associated neurotoxicity syndrome (ICANS) of any grade, graft-versus-host disease (GvHD) of any grade, infections of grade ≥3, secondary malignancies of any grade, and cardiac disorders of any grade.

    Measured: From signing of informed consent through 90 days post-infusion (for related AEs, up to 24 months post-infusion)

Secondary outcomes (24)
  1. Proportion of SLE/LN Patients Achieving LLDAS and DORIS Remission

    Proportion of patients with systemic lupus erythematosus/lupus nephritis (SLE/LN) who achieve Lupus Low Disease Activity State (LLDAS) and DORIS remission, including drug-free remission.

    Measured: 2 years

  2. Renal Response in SLE/LN Patients with Renal Involvement

    Proportion of SLE/LN patients with renal involvement achieving complete renal response (CRR) and partial response, and change from baseline in UPCR (urine protein-to-creatinine ratio) and eGFR.

    Measured: 2 years

  3. Change in SLE Disease Activity Scores

    Change from baseline in SLEDAI-2K score(range from 0 to105, higher scores mean a worse outcome).

    Measured: 2 years

  4. Change in SLE Disease Activity Scores

    Change from baseline in Physician Global Assessment (PGA : range from 0 to 3, higher scores mean a worse outcome).

    Measured: 2years

  5. Change in SLE Disease Activity Scores

    Change from baseline in British Isles Lupus Assessment Group (BILAG) score ( range from A to E, higher grade means a better outcome)..

    Measured: 2years

  6. Change in Autoantibody Levels in SLE/LN

    Change from baseline in anti-dsDNA antibody levels.

    Measured: 2 years

  7. Change in Complement Levels in SLE/LN

    Change from baseline in c omplement(C3/C4) levels.

    Measured: 2 years

  8. Major Clinical Response in IIM Patients

    Proportion of patients with idiopathic inflammatory myopathy (IIM) achieving major clinical response according to 2016 ACR/EULAR myositis response criteria

    Measured: 2 years

  9. Change in Skin and Lung Function in SSc Patients

    Change from baseline in modified Rodnan skin score (mRSS) , for patients with interstitial lung disease, change from baseline in FVC and DLCO.

    Measured: 2 years

  10. Change in Skin and Lung Function in SSc Patients

    Change from baseline in EUSTAR activity index; for patients with interstitial lung disease, change from baseline in FVC and DLCO.

    Measured: 2 years

  11. Remission and Renal Outcomes in MDR-NS Patients

    Proportion of patients with complete remission (CR), partial remission (PR), and overall response rate (CR+PR); change from baseline in serum albumin and eGFR; time to first composite renal outcome event (sustained eGFR decline ≥30%, eGFR <15 mL/min/1.73m², maintenance dialysis/kidney transplant, or renal death).

    Measured: 2 years

  12. Change in Quality of Life (PedsQL 4.0)

    Change from baseline in Pediatric Quality of Life Inventory (PedsQL 4.0) score ( range from 0 to 100, higher scores mean a better outcome)..

    Measured: 2 years

  13. Pharmacokinetics - CAR-T Expansion

    Peak expansion (Cmax) of RD06-05 CAR-T cells in peripheral blood.

    Measured: 2 years

  14. Immunogenicity - Anti-Drug Antibodies (ADA)

    Incidence of anti-drug antibodies (ADA) specific to RD06-05.

    Measured: 2 years

  15. Proteinuria in IgAN Patients

    Proportion of patients achieving UPCR < 1 g/g.

    Measured: 2 years

  16. Proteinuria in IgAN Patients

    Change from baseline in UPCR

    Measured: 2 years

  17. Renal Function in IgAN Patients

    Change from baseline in eGFR.

    Measured: 2 years.

  18. Renal Function in IgAN Patients

    Change from baseline in eGFR slope.

    Measured: 2 years

  19. Renal Function in IgAN Patients

    Proportion with eGFR decline ≥30%

    Measured: 2 years

  20. Renal Function in IgAN Patients

    Time to first composite kidney failure endpoint (sustained eGFR decline ≥30%, eGFR <15 mL/min/1.73m², maintenance dialysis, kidney transplant, or renal death).

    Measured: 2 years

  21. Duration of peripheral blood B-cell aplasia

    Duration of peripheral blood B-cell aplasia following RD06-05 infusion.

    Measured: 2 years

  22. Pharmacokinetics - CAR-T Expansion

    Area under the curve from day 0 to day 28 (AUC0-28) of RD06-05 CAR-T cells in peripheral blood.

    Measured: 2 years

  23. Pharmacokinetics - CAR-T Persistence

    Persistence of RD06-05 CAR-T cells in peripheral blood.

    Measured: 2 years

  24. Immunogenicity - Anti-Drug Antibodies (ADA)

    Titer of anti-drug antibodies (ADA) specific to RD06-05.

    Measured: 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Jun 2026
  2. Study startJul 2026 (estimated)
  3. Primary completionJul 2029 (estimated)
  4. Study completionJul 2030 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07674147
Sponsor's protocol ID
BHCT-RD06-05-PAID
Status last verified
Jun 2026
First submitted
5 Jun 2026
Last updated
29 Jun 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing RD06-05 CART Cell Infusion in people with Autoimmune Diseases and SLE - Systemic Lupus Erythematosus, run by The Children's Hospital of Zhejiang University School of Medicine at 2 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 28 inclusion and 44 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 29 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Jianhua Mao (+86 13516819071, maojh88@zju.edu.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of Treatment-Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), and Adverse Events of Special Interest (AESIs) (time frame: From signing of informed consent through 90 days post-infusion (for related AEs, up to 24 months post-infusion)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Jun 2026.

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