Table 2.

Postinfusion clinical, radiographic, and treatment data

VariablePatient 1Patient 2Patient 3Patient 4Patient 5
Age at infusion, y 14 13 2.5 
CART product CART22-65s CART22-65s huCART19 Tisacel Investigational CTL019 
Acute clinical course      
Limb weakness onset day after infusion D22 D25 D5-D10 D15 D36 
Pertinent MRI brain findings ↑T2/FLAIR and restricted diffusion (nonenhancing) in bilateral deep cerebral white matter (D24) ↑T2/FLAIR and restricted diffusion (nonenhancing) in subcortical, deep, and periventricular cerebral white matter (D25) ↑T2/FLAIR (nonenhancing, no restricted diffusion) in supratentorial white matter and brainstem (D10) ↑T2/FLAIR (nonenhancing, no restricted diffusion) in the cerebral white matter (D15) ↑T2/FLAIR in corona radiata, centrum semiovale, corpus callosum, and periventricular white matter (D39) 
Pertinent MRI spine findings ↑T2 in central and midline posterior cord, with slight edema in anterior midline cervical cord (D26) ↑T2 (nonenhancing) in dorsal columns of the cord (D25) ↑T2 (nonenhancing) and mild expansion in central portion of the entire cord (D10) Extensive, patchy, nonenhancing multifocal T2 lesions, some expansile (D16) Normal 
Day of death D31 D30 — D189 D72 
Pertinent autopsy findings Spinal cord: White matter pallor throughout the cord, few macrophages, extremely rare T lymphocytes, absent B lymphocytes — — — Spinal cord: normal
Brain:
cerebral cortex white matter pallor, with vacuolation and gliosis, axonal swelling 
Concomitant CRS and CRS and ICANS therapies received      
Maximum CRS Grade 2 Grade 2 Grade 4 Grade 1 Grade 4 
Tocilizumab Yes Yes Yes No Yes 
Corticosteroids Yes Yes Yes Yes Yes 
Plasmapheresis No No Yes Yes No 
IVIG No No Yes Yes Yes 
Sinemet Yes No Yes Yes Yes 
Anakinra No Yes Yes No No 
Other anticytokine therapy No No No No No 
VariablePatient 1Patient 2Patient 3Patient 4Patient 5
Age at infusion, y 14 13 2.5 
CART product CART22-65s CART22-65s huCART19 Tisacel Investigational CTL019 
Acute clinical course      
Limb weakness onset day after infusion D22 D25 D5-D10 D15 D36 
Pertinent MRI brain findings ↑T2/FLAIR and restricted diffusion (nonenhancing) in bilateral deep cerebral white matter (D24) ↑T2/FLAIR and restricted diffusion (nonenhancing) in subcortical, deep, and periventricular cerebral white matter (D25) ↑T2/FLAIR (nonenhancing, no restricted diffusion) in supratentorial white matter and brainstem (D10) ↑T2/FLAIR (nonenhancing, no restricted diffusion) in the cerebral white matter (D15) ↑T2/FLAIR in corona radiata, centrum semiovale, corpus callosum, and periventricular white matter (D39) 
Pertinent MRI spine findings ↑T2 in central and midline posterior cord, with slight edema in anterior midline cervical cord (D26) ↑T2 (nonenhancing) in dorsal columns of the cord (D25) ↑T2 (nonenhancing) and mild expansion in central portion of the entire cord (D10) Extensive, patchy, nonenhancing multifocal T2 lesions, some expansile (D16) Normal 
Day of death D31 D30 — D189 D72 
Pertinent autopsy findings Spinal cord: White matter pallor throughout the cord, few macrophages, extremely rare T lymphocytes, absent B lymphocytes — — — Spinal cord: normal
Brain:
cerebral cortex white matter pallor, with vacuolation and gliosis, axonal swelling 
Concomitant CRS and CRS and ICANS therapies received      
Maximum CRS Grade 2 Grade 2 Grade 4 Grade 1 Grade 4 
Tocilizumab Yes Yes Yes No Yes 
Corticosteroids Yes Yes Yes Yes Yes 
Plasmapheresis No No Yes Yes No 
IVIG No No Yes Yes Yes 
Sinemet Yes No Yes Yes Yes 
Anakinra No Yes Yes No No 
Other anticytokine therapy No No No No No 

Dashes denote not applicable (patient 3 did not die; no autopsy findings available on patients 2, 3 or 4). IVIG, intravenous immunoglobulin.

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