Sponsor decision

The purpose of this phase 2/3 study is to confirm the recommended doses and to evaluate the safety and pharmacodynamics of Calaspargase pegol for the treatment of adult patients with Philadelphia-negative Acute Lymphoblastic Leukemia.

The study will be conducted in 2 parts. Part 1 is a dose confirmation run-in period. Part 2 will enroll the remaining participants at the dose as confirmed or recommended in Part 1.

Inclusion Criteria:

• Aged ≥22 and <55 years with newly-diagnosed and cytologically confirmed and documented Philadelphia-negative B-cell or T-cell ALL by World Health Organization (WHO) classification (2016).
• Eastern Cooperative Oncology Group performance status (ECOG PS) 0 to 2.
• No prior therapy for ALL such as chemotherapy and radiation therapy before signing the informed consent except for limited treatment (≤7 days) with corticosteroids or hydroxyurea and a single dose of intrathecal cytarabine.

Exclusion Criteria:

• Patients with Philadelphia chromosome positive ALL, Burkitt's leukemia, mixed lineage/mixed phenotype acute leukemia, and acute undifferentiated leukemia per WHO classification (2016).
• Patients with Down syndrome.
• Patients with Hepatitis B (positive for HBs antigen), and Hepatitis C (HCV antibody) at inclusion
• Participants known to be HIV-positive.
• Known history of non-gallstone-related pancreatitis.
• Known severe hepatic impairment (bilirubin >3 x upper limit of normal [ULN]; transaminases >10 times ULN.
• Pre-existing history of hepatic veno-occlusive disease (VOD).
• Age ≥ 55 years.
• BMI > 35 kg/m2.

Qualified scientific and medical researchers can request access to anonymized patient-level and study-level clinical trial data.

Access can be requested for all interventional clinical studies:

• used for Marketing Authorization (MA) of medicines and new indications approved after 1 January 2014 in the European Economic Area (EEA) or the United States (US).
• where Servier is the Marketing Authorization Holder (MAH). The date of the first MA of the new medicine (or the new indication) in one of the EEA Member States will be considered for this scope.

In addition, access can be requested for all interventional clinical studies in patients:

• sponsored by Servier
• with a first patient enrolled as of 1 January 2004 onwards
• for New Chemical Entity or New Biological Entity (new pharmaceutical form excluded) for which development has been terminated before any Marketing authorization (MA) approval.

After Marketing Authorisation in EEA or US if the study is used for the approval.

Researchers should register on Servier Data Portal and fill in the research proposal form. This form in four parts should be fully documented. The Research Proposal Form will not be reviewed until all mandatory fields are completed.