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Prospective Observational Study of L-Asparaginase Activity and Antibody Changes after Introduction of PEGylated L-Asparaginase for Acute Lymphoblastic Leukemia/Lymphoblastic Lymphoma in Children, AYA, and Adults

Prospective Observational Study of L-Asparaginase Activity and Antibody Changes after Introduction of PEGylated L-Asparaginase for Acute Lymphoblastic Leukemia/Lymphoblastic Lymphoma in Children, AYA, and Adults - PEG-ASP24

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000057386
Enrollment
300
Registered
2025-03-24
Start date
2025-06-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute lymphoblastic leukemia (ALL) or malignant lymphoma-including lymphoblastic lymphoma (LBL)-regardless of whether newly diagnosed or recurrent.

Interventions

None listed

Sponsors

Nara Medical University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients with ALL or malignant lymphoma, including LBL, who are receiving treatment with L-ASP and meet one of the following inclusion criteria while not meeting any of the following exclusion criteria Inclusion criteria: 1)Patients provided written consent to participate in the PEG-ASP24 study if they were 16 years of age or older, or consent was obtained from a legal guardian if the patient is younger. Recurrent cases are also eligible to participate. Regarding T-ALL cases, patients enrolled in the ALL-T19 study who have discontinued study treatment will be eligible (T-ALL in non-ALL-T19 enrolled cases will also be eligible). 2)If a patient meets (1) of the abovementioned criteria and is changing from PEG-ASP (or native E. coli-ASP) to Erw-ASP owing to allergic reaction or anaphylaxis, and if a patient has a blood sample for L-ASP activity and antibody measurement after the last dose of PEG-ASP (or native E. coli-ASP), the patient will be allowed to participate from that time onward.

Exclusion criteria

Exclusion criteria: 1)The principal investigator or research physician determines that participation in the PEG-ASP24 study is not appropriate. 2)Patients enrolled in the ALL-T19 trial with ongoing study treatment.

Design outcomes

Primary

MeasureTime frame
Frequency of SI in PEG-ASP-treated cases

Secondary

MeasureTime frame
1)Frequency of SI in all cases treated with ASP products derived from E. coli (including native E. coli-ASP) since the introduction of PEG-ASP 2)Frequency of anti-L-ASP antibody production in Japan since the introduction of PEG-ASP 3)Proportion of cases with an L-ASP activity of <0.1 U/mL on day 21 after PEG-ASP administration 4)Frequency of allergic reactions and anaphylaxis for each formulation in cases treated with PEG-ASP, native E.coli-ASP, and Erw-ASP 5)Frequency of occurrence of decreased L-ASP activity and frequency of allergic reactions and anaphylaxis by age group 6)Changes in L-ASP activity and antibody titers before L-ASP formulation changes and after the last Erw-ASP dose due to allergic reactions and anaphylaxis 7)Correlation between the presence of anti-L-ASP antibodies and allergic reactions and anaphylaxis (CTCAE ver5.0)

Countries

Japan

Contacts

Public ContactTakashi Ishihara

Nara Medical University Department of Pediatrics

takakun@naramed-u.ac.jp0744-22-3051

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026