Skip to main content
. Author manuscript; available in PMC: 2026 Apr 13.
Published in final edited form as: Nat Med. 2026 Jan 15;32(2):702–716. doi: 10.1038/s41591-025-04121-8

Extended Data Table 1 |.

Detailed descriptions of patient characteristics and CirAE presentation, management and course

ID Age Sex Type of CirAE Diagnostic Test CirAE Grade (Based on ICI) Onset (Days) Presentation Management Steroid dose (Dex equivalent) Duration of CirAE (Days) Resolution of CirAE?
Cilta-cel#1 75 M Facial nerve palsy Head CT: negative 2 19 Left sided facial droop at Day+19; bilateral facial droop at Day+69 Multiple courses of oral steroids 280 mg 90 Yes
Cilta-cel#2 67 M Inflammatory arthritis Labs: RF, CCP, HLA-B27 negative;
Knee X-ray: bilateral knee arthritis & effusion
2 28 Pain and swelling of fingers, elbows, shoulders, knees, ankles Steroids, Hydroxychloroquine 147 mg 825 Ongoing
Cilta-cel#3 53 F Parkinsonism Head CT: negative 2 39 Shuffled gait, rigidity, and right-sided head tilt Steroid IV, IVIG, trihexyphenidyl and amantadine 1020 mg 690 Ongoing
Cilta-cel#4 74 M Facial nerve palsy Clinical diagnosis 2 31 Left sided facial weakness Oral steroids 560 mg 29 Yes
Delayed ICANS Brain MRI/CT: negative
CSF: negative workup for infections or malignancy: CAR transgene detected
2 57 Altered mental status, slurred speech, disorientation Steroid IV, IVIG 7 Yes
Enterocolitis Endoscopy: immune-mediated enterocolitis 3 76 Diarrhea, weight loss TPN. Refractory to budesonide and oral steroid, responsive to infliximab 765 Yes
Cilta-cel#5 66 F Enterocolitis Endoscopy: immune-mediated enterocolitis 2 154 Diarrhea, nausea Supportive (Loperamide, Cholestyramine) 37.5 mg 97 Yes
Cilta-cel#6 65 F Enterocolitis CRP and ESR negative 1 25 Diarrhea, nausea Loperamide, supportive treatment 150 mg 152 Yes
Cilta-cel#7 60 F Inflammatory arthritis Clinical diagnosis;
ESR elevated, SSA borderline
2 7 Bilateral arm, knee, and ankle pain with hand swelling and nocturnal stiffness. Oral steroids, physical therapy 32 mg 127 Yes
Cilta-cel#8 68 M Enterocolitis Negative C.diff and enteric pathogen testing;
Endoscopy: immune-mediated enterocolitis
1 123 Diarrhea, weight loss Mesalamine, loperamide and budesonide 0 mg 178 Yes
Cilta-cel#9 54 M Neuropathy (Parsonage-turner-like) MRI brachial plexus: normal;
EMG: neuropathy and myopathic findings
2 9 Bilateral shoulder and neck pain, left upper extremity weakness Oral steroids, physical therapy, with improvement 332 mg 438 Ongoing
Cilta-cel#10 67 F Enterocolitis Endoscopy: Immune-mediated enterocolitis; no CMV or viral inclusion, C.diff negative 4 86 Severe diarrhea, abdominal pain, pneumatosis intestinalis Loperamide, steroids, IVIG, ruxolitinib, TPN 337 mg 357 No, CirAE related mortality
Cilta-cel#11 67 F Parkinsonism Clinical diagnosis;
Brain MRI: negative
2 297 Fatigue, hypokinesis Carbidopa-Levodopa 0 mg 144 Ongoing
Cilta-cel#12 70 M Parkinsonism Clinical diagnosis;
Brain MRI: unremarkable
1 36 Blunted affect, micrographia Oral steroids 116 mg 66 Yes
Cilta-cel#13 77 F Enterocolitis Clinical diagnosis 1 118 Diarrhea Loperamide, oral steroids N/A 223 Ongoing
Cilta-cel#14 69 M Encephalopathy MRI: bilateral thalamic diffusion restriction with peripheral enhancement
CSF: elevated protein, CAR detected, JC virus positive (no clinical/ radiologic correlate)
5 263 Altered mental status, confusion, generalized fatigue, fever Steroids IV 937.5 mg 18 No, CirAE related mortality
Cilta-cel#15 65 F Parkinsonism Head CT: negative; MRI: pachymeningeal thickening/enhancement.
CSF: elevated protein, lymphocytic. CAR transcript detected.
3 28 Tremors, bradykinesia, altered mental status Steroids, intrathecal chemotherapy, ruxolitinib 585 mg 225 Ongoing
Cilta-cel#16 58 F Facial nerve palsy MRI/CT brain: normal
CSF: normal, CAR transcript detected
2 17 Right-sided facial droop at Day+17; left-sided facial droop at Day +44 IVIG, Oral and IV steroids 268 mg 30 Yes
Cilta-cel#17 67 M Facial nerve palsy Head CT: Negative 3 16 Left sided facial droop/weakness Oral, IV steroids 108 mg 210 ongoing
Cilta-cel#18 67 F Facial nerve palsy Clinical diagnosis 2 18 Left sided facial droop/weakness Steroids oral 200 mg 90 Yes
Cilta-cel#19 53 F Facial nerve palsy Head CT: Negative 2 20 Right sided facial droop/weakness Steroids oral 78 mg 33 Yes
Cilta-cel#20 71 M Enterocolitis Negative C.diff
Bowel CT: Extensive pneumatosis, moderate pneumoperitoneum
Endoscopy: immune-mediated colitis
4 139 Failure to thrive, Diarrhea, Severe Weight Loss Steroids oral and IV, ruxolitinib, TPN 460 mg 45 ongoing
Cilta-cel#21 61 F Optic neuritis MRI: left optic neuritis/perineuritis;
CSF: negative for infections/malignancy; CAR transgene detected
5 62 Headache, left eye swelling, ptosis, left field visual defects Steroids oral and IV, tocilizumab without Improvement 5100 mg 108 No, CirAE related mortality
Cilta-cel#22 55 F Facial nerve palsy Head CT: Negative, CSF: CAR transcript detected 2 22 Left sided facial droop, ageusia, and headache Steroids oral and IV 444 mg 135 ongoing
Cilta-cel#23 77 M Parkinsonism Clinical diagnosis 3 57 Unsteady gait apraxla, dizziness Steroids IV, IVIG with improvement but not resolution 562.5 mg 99 No, CirAE related mortality
Cilta-cel#24 74 F Facial nerve palsy MRI: Right facial nerve enhancement (labyrinthine segment) 2 42 Right facial droop, blurry vision Steroids oral 73,5 mg 50 No, CirAE related mortality
Cilta-cel#25 75 F Facial nerve palsy Head CT/Brain MRI: negative 5 37 Left facial weakness Steroids IV without improvement 232 mg 31 No, CirAE related mortality
Parkinsonism Clinical diagnosis 5 41 Masked facies, upper extremity rigidity, and hypophonia. Steroids IV, Carbidopa-Levodopa without Improvement 27
Ida-cel#1 61 F Pneumonitis Chest CT: bilateral lower lobe predominant, peri-bronchovascular groundglass opacities 1 333 Dyspnea Supportive, temporary suspension of teclistamab 0 mg 27 Yes
Ide-cel#2 82 F Pneumonitis CT: diffuse bilateral ground-glass nodules; Bronchoscopy: negative for infection. 3 361 Cough. Hypoxemia, dyspnea Steroids, ruxolitinib 650 mg 354 Ongoing