A Phase 1/2 Clinical Study of GC012F Injection in Subjects With Refractory Systemic Lupus Erythematosus
Overview
- Phase
- Phase 1
- Intervention
- GC012F Injection
- Conditions
- Not specified
- Sponsor
- Gracell Biotechnologies (Shanghai) Co., Ltd.
- Enrollment
- 118
- Locations
- 3
- Primary Endpoint
- Dose-Limiting Toxicity (DLT) rate
- Status
- Recruiting
- Last Updated
- 24 days ago
Overview
Brief Summary
This is a single-arm, open-label, multicenter, phase 1/2 clinical study to assess the safety and efficacy of GC012F Injection in subjects with refractory Systemic Lupus Erythematosus (SLE).
Detailed Description
This is a single-arm, open-label, multicenter, phase 1/2 clinical study to assess the safety and efficacy of GC012F Injection in subjects with refractory SLE;The dose-escalation phase 1 study aims to assess the safety of GC012F Injection and determine the Recommended Phase II Dose (RP2D). The phase 2 study aims to determine the efficacy and safety of GC012F Injection at the RP2D in patients with refractory SLE and assess the pharmacokinetics (PK) and pharmacodynamics (PD) characteristics.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Voluntarily sign the ICF;
- •Males or females, aged 18-70 years old (inclusive);
- •Must be able and willing to comply with the study visit schedule and other protocol requirements;
- •Presence of CD19+B cells in the peripheral blood;
- •Diagnosed with SLE and meeting the 2019 EULAR/ACR classification criteria for SLE;
- •Used standard SLE treatment regimens and at least a biological agent for more than 6 months but did not meet the LLDAS criteria
- •SLEDAI-2000 scores ≥8 during the screening period. If the scores for low complement and/or anti-ds-DNA antibody are available, the SLEDAI-2000 scores for clinical symptoms (except low complement and/or anti-ds-DNA antibody) should be NLT 4;
- •Positive serological test results of autoantibodies: Positive results of antinuclear antibody (ANA) and/or anti-ds-DNA antibody and/or anti-Sm antibody, with critical values not acceptable;
- •Adequate functional reserve of organs:
- •Neutrophil count ≥1 × 10\^9/L, lymphocyte count ≥0.3 × 10\^9/L; hemoglobin ≥85 g/L; platelet count ≥50 × 10\^9/L;
Exclusion Criteria
- •Receipt of CD19 and/or BCMA-targeted therapies or CAR T-cell therapies for any targets in the past;
- •Receipt of CD20-targeted drug therapy within 6 months prior to screening;
- •Receipt of immunosuppressants or prednisone \>15 mg/d or equivalent doses of other glucocorticoids within 1 week before the apheresis;
- •Presence of any renal disorders: serious lupus nephritis (serum creatinine \>2.5 mg/dL or 221 μmol/L), or active nephritis requiring treatments with drugs forbidden in this protocol, or any needs for hemodialysis within 8 weeks prior to apheresis;
- •Presence of any serious heart diseases as follows:
- •Congestive heart failure (New York Heart Association (NYHA) Class III or IV);
- •Myocardial infarction or receipt of coronary artery bypass grafting (CABG) within 6 months prior to screening;
- •Clinically significant ventricular arrhythmias or a history of unexplained syncope not due to vasovagal reaction or dehydration; or a QTc interval \>480 ms during the screening;
- •A medical history of severe non-ischemic cardiomyopathy;
- •Need for supplemental oxygen or mechanical ventilation with oxygen saturation \<92%;
Arms & Interventions
GC012F Injection
GC012F Injection
Intervention: GC012F Injection
Outcomes
Primary Outcomes
Dose-Limiting Toxicity (DLT) rate
Time Frame: 28 days
Phase 1 study:Proportions of subjects with DLT within 28 days after infusion.
SLE Responder Index (SRI)-4 response rate
Time Frame: 48 weeks
Phase 2 study:Proportion of subjects achieving SRI-4 response at Week 48.
Secondary Outcomes
- Definitions of Remission in SLE (DORIS) rate(48 weeks)
- adverse events (AEs)(48 weeks)
- SRI-4 response rate(48 weeks)
- SRI-4 response duration(48 weeks)
- lupus low disease activity state (LLDAS) rate(48 weeks)
- DORIS duration(48 weeks)
- LLDAS duration(48 weeks)
- CR duration(48 weeks)
- complete remission (CR) rate(48 weeks)