Table 2.

Time-varying Cox proportional hazard model for PFS

VariableHR (95% CI)P value
RRMM and TIE NDMM   
 Univariate analysis   
Response group (≥CR + MRD negative vs ≤VGPR or MRD positive) 0.17 (0.12-0.24) <.0001 
 Multivariate analysis   
Response group (≥CR + MRD negative vs ≤VGPR or MRD positive) 0.20 (0.14-0.29) <.0001 
Disease setting (NDMM vs RRMM) 0.45 (0.39-0.52) <.0001 
Treatment (daratumumab-containing regimen vs SoC) 0.48 (0.43-0.54) <.0001 
Age 1.00 (0.99-1.01) .9619 
ISS disease stage (II vs I) 1.76 (1.52-2.03) <.0001 
ISS disease stage (III vs I) 1.94 (1.64-2.30) <.0001 
Baseline renal function (>60 mL/min vs ≤60 mL/min) 1.00 (0.87-1.14) .9449 
Cytogenetic risk (high vs standard) 1.53 (1.30-1.79) <.0001 
RRMM ≤2 PL and TIE NDMM   
 Univariate analysis   
  Response group (≥CR + MRD negative vs ≤VGPR or MRD positive) 0.16 (0.11-0.24) <.0001 
 Multivariate analysis   
  Response group (≥CR + MRD negative vs ≤VGPR or MRD positive) 0.19 (0.13-0.29) <.0001 
  Disease setting (NDMM vs RRMM) 0.46 (0.39-0.53) <.0001 
  Treatment (daratumumab-containing regimen vs SoC) 0.46 (0.40-0.52) <.0001 
  Age 1.00 (0.99-1.01) .7395 
  ISS disease stage (II vs I) 1.80 (1.54-2.11) <.0001 
  ISS disease stage (III vs I) 1.93 (1.61-2.31) <.0001 
  Baseline renal function (>60 mL/min vs ≤60 mL/min) 1.02 (0.89-1.18) .7601 
  Cytogenetic risk (high vs standard) 1.64 (1.38-1.94) <.0001 
VariableHR (95% CI)P value
RRMM and TIE NDMM   
 Univariate analysis   
Response group (≥CR + MRD negative vs ≤VGPR or MRD positive) 0.17 (0.12-0.24) <.0001 
 Multivariate analysis   
Response group (≥CR + MRD negative vs ≤VGPR or MRD positive) 0.20 (0.14-0.29) <.0001 
Disease setting (NDMM vs RRMM) 0.45 (0.39-0.52) <.0001 
Treatment (daratumumab-containing regimen vs SoC) 0.48 (0.43-0.54) <.0001 
Age 1.00 (0.99-1.01) .9619 
ISS disease stage (II vs I) 1.76 (1.52-2.03) <.0001 
ISS disease stage (III vs I) 1.94 (1.64-2.30) <.0001 
Baseline renal function (>60 mL/min vs ≤60 mL/min) 1.00 (0.87-1.14) .9449 
Cytogenetic risk (high vs standard) 1.53 (1.30-1.79) <.0001 
RRMM ≤2 PL and TIE NDMM   
 Univariate analysis   
  Response group (≥CR + MRD negative vs ≤VGPR or MRD positive) 0.16 (0.11-0.24) <.0001 
 Multivariate analysis   
  Response group (≥CR + MRD negative vs ≤VGPR or MRD positive) 0.19 (0.13-0.29) <.0001 
  Disease setting (NDMM vs RRMM) 0.46 (0.39-0.53) <.0001 
  Treatment (daratumumab-containing regimen vs SoC) 0.46 (0.40-0.52) <.0001 
  Age 1.00 (0.99-1.01) .7395 
  ISS disease stage (II vs I) 1.80 (1.54-2.11) <.0001 
  ISS disease stage (III vs I) 1.93 (1.61-2.31) <.0001 
  Baseline renal function (>60 mL/min vs ≤60 mL/min) 1.02 (0.89-1.18) .7601 
  Cytogenetic risk (high vs standard) 1.64 (1.38-1.94) <.0001 

Data are shown for univariate and multivariate analyses using combined data from all RRMM and TIE NDMM patients in POLLUX, CASTOR, ALCYONE, and MAIA (RRMM and TIE NDMM) and among patients with RRMM with ≤2 PL from POLLUX and CASTOR and TIE NDMM from ALCYONE and MAIA (RRMM ≤2 PL and TIE NDMM). The following variables were evaluated: MRD negativity status with best response, disease setting, treatment, age, ISS disease stage, baseline renal function, and cytogenetic risk. RRMM and TIE NDMM patients with missing data for baseline renal function (POLLUX, n = 9; CASTOR, n = 20; ALCYONE, n = 0; MAIA, n = 0; total n = 29) or cytogenetic risk (POLLUX, n = 130; CASTOR, n = 142; ALCYONE, n = 90; MAIA, n = 95; total n = 457) were excluded from the multivariate model. RRMM ≤2 PL and TIE NDMM patients with missing data for baseline renal function (POLLUX, n = 8; CASTOR, n = 14; ALCYONE, n = 0; MAIA, n = 0; total n = 22) or cytogenetic risk (POLLUX, n = 108; CASTOR, n = 111; ALCYONE, n = 90; MAIA, n = 95; total n = 404) were excluded from the multivariate model.

SoC, standard of care.

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