Table 6.

Stem Cell Collection Data: 6 Induction Cycles

Parameter	VRD Arm	KRD Arm
Precollection BM cellularity, %, mean ± SD (P = .148)	35.8 ± 13.1	39.2 ± 15.1
Time from end of induction therapy to start of collection, d, median (range) (P = .479)	29 (10-100)	24 (9-195)
G-CSF and plerixafor-based stem cell mobilization, n (%)	39 (92.9)	89 (98.9)
Chemotherapy-based stem cell mobilization, n (%)	3 (7.1)	1 (1.1)
Premobilization hematologic parameters, mean ± SD
WBCs (P =.03)	6 ± 2.7	4.9 ± 2.2
Hemoglobin (P = .0001)	12.5 ± 1.3	11.4 ± 1.1
Platelets (P = .498)	198.3 ± 63.9	209.8 ± 89.3
WBC count at start of collection, mean ± SD (P = .354)	48.9 ± 16.5	46 ± 18.9
Days to complete stem cell collection, mean (P = .024)	1.81	2.21
1 day, %	40	30
2 days, %	40	32.2
3 days, %	16.7	27.8
4 days, %	2.4	10
Collection failures (<2 × 106 CD34+ cells/kg), n (%) (P = .9)	1 (2.4)	6 (6.7)
Suboptimal collection(<5 × 106 CD34+ cells/kg), n (%)	2 (4.8)	16 (17.8)