Postinfusion clinical, radiographic, and treatment data
| Variable . | Patient 1 . | Patient 2 . | Patient 3 . | Patient 4 . | Patient 5 . | 
|---|---|---|---|---|---|
| Age at infusion, y | 7 | 14 | 13 | 2.5 | 7 | 
| 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 | 
| Variable . | Patient 1 . | Patient 2 . | Patient 3 . | Patient 4 . | Patient 5 . | 
|---|---|---|---|---|---|
| Age at infusion, y | 7 | 14 | 13 | 2.5 | 7 | 
| 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.