About this trial
This is a multicenter, randomized, controlled, open-label, phase III clinical study to evaluate the efficacy of Equecabtagene Autoleucel Injection versus standard therapy in subjects with lenalidomid-refractory RRMM who have received 1-2 lines of prior therapy.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
18 to 75 years of age (inclusive of critical values), either gender.
The subject was previously diagnosed with multiple myeloma and had received 1-2 lines of therapy (including chemotherapy regimens based on proteasome inhibitors and immunomodulatory agents, with each line of therapy receiving at least 1 full cycle ; Documented disease progression during or within 12 months after the most recent anti-myeloma therapy.
Subjects was lenalidomide-refractory during prior therapy.
ECOG score of 0 or 1.
Disqualifiers
Subjects who have used or required long-term immune-suppressive agents (e.g., cyclosporine or systemic steroids) within 14 days prior to enrollment, but the use of physiological substitutes, intermittent, topical, and inhaled steroids is allowed.
Subjects who have undergone autologous haematopoietic stem cell transplantation (Auto-HSCT) within 12 weeks prior to randomization, or who have previously undergone allogeneic haematopoietic stem cell transplantation (Allo-HSCT).
Subjects received the following anti-tumor treatments before enrollment: (1)Treated with an immunomodulator within 7 days, or; (2)Received plasma exchange, radiotherapy (except local radiotherapy for myeloma-related bone lesions), cytotoxic chemotherapy, treatment with proteasome inhibitors or other investigational drug within 14 days, or; (3) Treatment with monoclonal antibody for multiple myeloma within 21 days, or; (4) Received other anti-cancer therapy within 14 days or at least 5 half-lives (whichever is shorter) prior to enrollment.
Significant cardiac disorder.
Trial design
Parallel
Treatments tested in this trial
Equecabtagene Autoleucel Injection
Drugdosage form: injection, dosage: 1.0×10\^6 CAR-T/kg, frequency: single dose.
Daratumumab
Drugdosage form: Injection dose level:16mg/kg frequency: 28days/cycle for DPd regimen * Cycle1-2:D1, D8, D15, D22; * Cycle3-6:D1, D15; * above Cycle7:D1
Pomalidomide
Drugdosage form:capsule. doseage form: capsule. dose level: 4mg/d. frequency: every cycle: D1-D21 for DPd regimen, D1-D14 for PVd regimen.
Bortezomib
Drugdosage form: subcutaneous injection. dose level: 1.3mg/m2. frequency: 21days/cycle for PVd regimen cycle 1-8: D1,D4, D8, D11; above cycle 9: D1, D8.
Dexamethasone
Drugdosage form: oral or intravenus injection. dose level:20mg/d. frequency: for DPd: every cycle, D1, D2, D8, D9, D15, D16, D22, D23; for PVd: Cycle1-8:D1, D2, D4, D5, D8, D9, D11, D12; above Cycle 9: D1, D2, D8, D9.
Treatment groups
Trial outcomes
Primary outcomes
Progression-Free Survival (PFS) as assessed by Independent Review Committee (IRC)
The time from randomization to the first documented disease progression as determined by IRC or death due to any cause
Secondary outcomes
Minimal Residual Disease (MRD) negativity rate at 12 months
The proportion of subjects who achieve MRD negativity (using next-generation flow cytometry according to EuroFlow standard operating procedures) and complete response (CR) or better, as assessed by IRC, 12 months (±3 months) post-randomization
Overall MRD negativity rate
The proportion of subjects who achieve MRD negativity at any time after the date of randomization and before the initiation of subsequent therapy
Duration of MRD negativity
The time from first achievement of MRD negativity to the first subsequent positive MRD status
Complete Response Rate(CRR)
The proportion of subjects who achieve CR or better post-randomization among all randomized subjects
Sponsors and contacts
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