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. Author manuscript; available in PMC: 2018 Jul 30.
Published in final edited form as: N Engl J Med. 2018 Jun 26;379(2):150–161. doi: 10.1056/NEJMoa1716435

Table 2.

Adverse Events Attributable to PVSRIPO, According to Dose Level, in the 9 Patients in the Dose-Escalation Phase.*

Event, According to Body System and Grade PVSRIPO Dose Level
Level 1 (N = 1) Level 2 (N = 1) Level 3 (N = 1) Level 4 (N = 2) Level 5 (N = 4)
number of patients
General disorder or administration-site condition

 Fatigue, grade 1 1 1

 Gait disturbance, grade 1 1

Nervous system disorder

 Cognitive disturbance, grade 2 1

 Dysphasia

  Grade 1 1

  Grade 2 1

 Headache, grade 1 1 1

 Paresthesia

  Grade 1 1

  Grade 2 1 1

 Pyramidal tract syndrome

  Grade 2 1

  Grade 3 1 1

 Seizure

  Grade 1 3

  Grade 2 1

Psychiatric disorder: confusion, grade 1 1

Total no. of patients with an event 1 1 1 1 3
*

In the dose-escalation phase, dose level 1 was 108 50% tissue-culture infectious doses (TCID50), dose level 2 was 3.3×108 TCID50, dose level 3 was 109 TCID50, dose level 4 was 3.3×109 TCID50, and dose level 5 was 1010 TCID50.

Pyramidal tract syndrome was defined as hemiparesis.