Asparagine and glutamine in serum after pegaspargase or native asparaginase treatment during induction.

Specimens were collected during the induction phase from 57 and 45 patients in the pegaspargase (A) and native ASNase (B) arms, respectively. Specimens were collected from 45 and 45, and 41 and 45 for the DI no. 1 and DI no. 2 phases in those arms. (Symbols: mean ± SEM, n = 21 to 50 for the pegaspargase and 18 to 45 for the native ASNase arms, respectively. Asn indicates asparagine; Gln, glutamine.)