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An Open-Label, Multicenter Study of RC-P in Patients with Acute Lymphoblastic Leukemia (ALL)/Lymphoblastic Lymphoma (LBL) Following Hypersensitivity to E. coli-derived Asparaginases

An Open-Label, Multicenter Study of RC-P in Patients with Acute Lymphoblastic Leukemia (ALL)/Lymphoblastic Lymphoma (LBL) Following Hypersensitivity to E. coli-derived Asparaginases

Status
Unknown
Phases
Phase 2Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2025-000263-36-Outside-EU/EEA
Enrollment
Unknown
Registered
2025-10-05
Start date
Unknown
Completion date
Unknown
Last updated
2025-10-27

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

Conditions

Acute Lymphoblastic Leukemia (ALL) / Lymphoblastic Lymphoma (LBL)

Interventions

Product Code: JZP458 Pharmaceutical Form: Solution for injection/infusion INN or Proposed INN: crisantaspase Current Sponsor code: JZP458 Other descriptive name: RECOMBINANT L-ASPARAGINASE Concentrati

Sponsors

Jazz Pharmaceuticals
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Able to sign a written informed consent, and/or have a legally authorized representative sign. - Pediatric and adult patients with diagnosis of ALL or LBL. - Have had an allergic reaction to a long-acting E. coli-derived asparaginase or have silent inactivation. - Have 1 or more courses of E. coli derived asparaginase remaining in his/her treatment plan. - Have fully recovered from prior allergic reaction to E. coli-derived asparaginase. - Have adequate liver function. - Female patients of childbearing potential and male patients who have female partners of childbearing potential agree to use medically acceptable methods of contraception. Are the trial subjects under 18? yes Number of subjects for this age range: 197 F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 31 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: - Have previously received asparaginase Erwinia chrysanthemi or RC-P - Have relapsed ALL or LBL - Are treated with another investigational agent and/or device - Have history of = Grade 3 pancreatitis - Prior history of asparaginase-associated = Grade 3 hemorrhagic event or asparaginase-associated thrombus - Patients who in the opinion of the Investigator may not be able to comply with the efficacy and safety monitoring requirements of the study - Patients who have any serious active disease or co-morbid medical condition or psychiatric illness that would prevent the patient from signing the informed consent or would prevent the patient from completing one course of RC-P. - Pregnant or lactating females or females of childbearing potential not willing to use birth control or stop breast-feeding.

Design outcomes

Primary

MeasureTime frame
Main Objective: - To determine the efficacy of intramuscular (IM) RC-P administration as measured by the response in Cohort 1 and Cohort 2, defined as the last 72-hour nadir serum asparaginase activity (NSAA) level = 0.1 IU/mL during the first course - To assess the safety and tolerability of IM RC-P in patients with ALL/LBL who are hypersensitive to E. coli-derived asparaginases;Secondary Objective: - To determine the efficacy of IM RC-P administration as measured by the response in Cohort 1 and Cohort 2, defined as the last 48-hour NSAA level = 0.1 IU/mL during the first course - To determine the efficacy of IM RC-P administration as measured by the response in Cohort 1 and Cohort 2, defined as the last 48-hour and the last 72-hour NSAA levels = 0.4 IU/mL during the first course - To characterize the pharmacokinetics (PK) of IM RC-P using a population PK approach, and to explore exposure-response correlations - To assess the immunogenicity of IM RC-P following repeat administration of RC-P;Primary end point(s): - The primary efficacy endpoint of the study is the response rate, defined as the proportion of patients with the last 72-hour NSAA level = 0.1 IU/mL during the first course of IM RC-P. - The primary safety endpoint of the study is the safety and tolerability of IM RC-P in patients with ALL/LBL who are hypersensitive to E. coli-derived asparaginases. ;Timepoint(s) of evaluation of this end point: - Blood samples were collected for serum asparaginase activity level determination (Baseline up to 2 weeks). - Date of written informed consent up to 30 days after last dose of last course, up to approximately 2 years 7 months.

Secondary

MeasureTime frame
Secondary end point(s): - Proportion of patients with the last 48-hour NSAA level = 0.1 IU/mL during the first course of IM administration of RC-P. - Proportion of patients with the last 48-hour NSAA level = 0.4 IU/mL during the first course of IM administration of RC-P - Proportion of patients with the last 72-hour NSAA level = 0.4 IU/mL during the first course of IM administration of RC-P - Characterization of the PK of IM RC-P based on SAA using a population PK approach and exposure-response correlations - Incidence of anti-drug antibody formation against RC-P;Timepoint(s) of evaluation of this end point: - Baseline up to 2 weeks - Baseline up to 2 weeks - Baseline up to 2 weeks - Up to 2 weeks

Countries

Canada, United States

Contacts

Public ContactClinical Trial Disclosure

Jazz Pharmaceuticals

012158323750

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026