A Study of LUCAR-G79D in Subjects With Relapsed/Refractory Systemic Lupus Erythematosus (r/r SLE) and Idiopathic Inflammatory Myopathies (r/r IIM)
An Open-label Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of LUCAR-G79D in Subjects With Relapsed/Refractory Systemic Lupus Erythematosus (r/r SLE) and Idiopathic Inflammatory Myopathies (r/r IIM)
1 other identifier
interventional
38
1 country
5
Brief Summary
This is a prospective, single-arm, open-label and dose-escalation investigator initialed study to evaluate LUCAR-G79D in adult subjects with r/r SLE and r/r IIM.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_1
Started Jan 2026
Longer than P75 for phase_1
5 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 15, 2025
CompletedFirst Posted
Study publicly available on registry
January 9, 2026
CompletedStudy Start
First participant enrolled
January 29, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 31, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
January 31, 2030
February 2, 2026
January 1, 2026
2 years
December 15, 2025
January 29, 2026
Conditions
Outcome Measures
Primary Outcomes (6)
Incidence, severity, and type of treatment-emergent adverse events (TEAEs)
2 years after LUCAR-G79D infusion (Day 1)
Incidence of dose-limiting toxicity (DLT)
2 years after LUCAR-G79D infusion (Day 1)
Maximum concentration (Cmax) in peripheral blood
2 years after LUCAR-G79D infusion (Day 1)
Time of maximum concentration (Tmax) in peripheral blood
2 years after LUCAR-G79D infusion (Day 1)
Area under the concentration-time curve (AUC) in peripheral blood
2 years after LUCAR-G79D infusion (Day 1)
Recommended Dose regimen finding
2 years after LUCAR-G79D infusion (Day 1)
Secondary Outcomes (4)
Change in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) scores from baseline up to 52 weeks for r/r SLE subjects
52 weeks after LUCAR-G79D infusion (Day 1)
Change in manual muscle testing (MMT-8) scores from baseline up to 52 weeks for r/r IIM subjects
52 weeks after LUCAR-G79D infusion (Day 1)
Changes from baseline in peripheral blood immunoglobulins from baseline up to 52 weeks for all subjects
52 weeks after LUCAR-G79D infusion (Day 1)
Changes from baseline in anti-drug antibody from baseline up to 52 weeks for all subjects
52 weeks after LUCAR-G79D infusion (Day 1)
Study Arms (1)
Chimeric antigen receptor T cells (LUCAR-G79D)
EXPERIMENTALEach subject will be given a single-dose LUCAR-G79D cells infusion at each dose level.
Interventions
Prior to infusion of the LUCAR-G79D T cells, subjects will receive a conditioning premedication regimen consisting of cyclophosphamide and fludarabine.
Eligibility Criteria
You may qualify if:
- Subjects voluntary agreement to provide written informed consent.
- Aged 18 to 70 years, either sex.
- Adequate organ function meet screening criteria.
- Positive test for cluster of differentiation antigen 19 (CD19).
- SLE:
- Have been diagnosed of SLE at least 6 months before screening.
- At screening, antinuclear antibody, and/or anti-dsDNA antibody, and/or anti-Smith antibody should be positive.
- Fulfill relapsed/refractory SLE conditions.
- IIM:
- Have been diagnosed of IIM before screening.
- Positive test for myositis-associated antibodies or myositis-specific antibodies at screening.
- Fulfill relapsed/refractory IIM conditions.
You may not qualify if:
- Active infections such as hepatitis and tuberculosis.
- Other autoimmune diseases.
- Serious underlying diseases such as tumor, uncontrolled diabetes.
- Female subjects who were pregnant, breastfeeding.
- Those with a history of major organ transplantation.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (5)
The Third The People's Hospital of Bengbu
Bengbu, Anhui, China
Nanfang Hospital
Guangzhou, Guangdong, China
Xiangya Hospital of Central South University
Changsha, Hunan, China
The Affiliated Hospital of Xuzhou Medical University
Xuzhou, Jiangsu, China
The First Affiliated Hospital of Nanchang University
Nanchang, Jiangxi, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 15, 2025
First Posted
January 9, 2026
Study Start
January 29, 2026
Primary Completion (Estimated)
January 31, 2028
Study Completion (Estimated)
January 31, 2030
Last Updated
February 2, 2026
Record last verified: 2026-01
Data Sharing
- IPD Sharing
- Will not share