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A Study Comparing the Blood Levels of Both Pegaspargase (S95014) Formulations (Liquid vs Lyophilized) in the Treatment of Paediatric Patients With Acute Lymphoblastic Leukemia (ALL)

A Multicentre, Phase II Randomized Study, Open-label, With 2-arm Parallel Group, Comparing the Pharmacokinetics of the Liquid and the Lyophilized Formulations of Pegaspargase (S95014) in Treatment of Paediatric Patients With Newly-Diagnosed Acute Lymphoblastic Leukemia (ALL)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04954326
Acronym
ALL
Enrollment
89
Registered
2021-07-08
Start date
2021-05-07
Completion date
2022-05-20
Last updated
2023-07-12

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

Conditions

Acute Lymphoblastic Leukemia

Keywords

Oncology / Haematology, Phase II, Acute Lymphoblastic Leukemia, Parallel group, Pegaspargase, Pharmacokinetics comparability, Lyophilized pegaspargase, Liquid pegaspargase, Pegaspargase formulation, Randomized, open-label

Brief summary

The purpose of this study is to compare the pharmacokinetics (PK) of both lyophilized and liquid S95014 formulations during the induction phase after a single IV dose in newly diagnosed paediatric patients with ALL

Interventions

Lyophilized S95014 will be intravenously administered over 1 hour at the dose of 2500 U/m2 at Day 3 of the induction phase. Patients will receive other backbone chemotherapy agents as per ALL-MB 2015 protocol.

DRUGLiquid S95014

Liquid S95014 will be intravenously administered over 1 hour at the dose of 2500 U/m2 at Day 3 of the induction phase. Patients will receive other backbone chemotherapy agents as per ALL-MB 2015 protocol.

Sponsors

ADIR, a Servier Group company
CollaboratorINDUSTRY
Les Laboratoires Servier (L.L.S), Russia
CollaboratorINDUSTRY
Institut de Recherches Internationales Servier
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
1 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

* Patients aged 1 to \< 18 years * Patients with cytologically confirmed and documented newly diagnosed ALL according to National Comprehensive Cancer Network guidelines 2020 (see Appendix 2), excluding B-cell Burkitt ALL * Eastern Cooperative Oncology Group performance status (ECOG PS) 0-2 (see Appendix 3) * Highly effective contraception method * Signed informed consent and assent, when appropriate Non-inclusion Criteria: * Unlikely to cooperate in the study * Pregnant and lactating women * Participation in another interventional study at the same time; participation in non-interventional registries or epidemiological studies is allowed * Participant already enrolled in the study (informed consent signed) * Women of childbearing potential tested positive in a serum pregnancy test within 7 days prior to the treatment period * Inadequate hepatic function (bilirubin \> 1.5 times upper limit of normal (ULN), transaminases \> 5x ULN) * Inadequate renal function defined as serum creatinine \> 1.5 x ULN * Prior treatment with chemotherapy or radiotherapy (except steroids and intrathecal therapy) * Prior surgery or bone marrow transplant related to the studied disease * Down Syndrome * Psychiatric illness/social situation that would limit compliance with study requirements * Known history of pancreatitis * Known history of significant liver disease * Known carriers of HIV antibodies * Significant laboratory abnormality likely to jeopardize the patients' safety or to interfere with the conduct of the study, in the investigator's opinion * Pre-existing known coagulopathy (e.g. haemophilia and known protein S deficiency) * History of previous or concurrent malignancy * History of sensitivity to polyethylene glycol (PEG) or PEG-based drugs * Severe or uncontrolled active acute or chronic infection * Uncontrolled intercurrent illness including life-threatening acute tumor lysis syndrome (e.g. with renal failure), symptomatic congestive heart failure, cardiac arrhythmia

Design outcomes

Primary

MeasureTime frameDescription
Pharmacokinetics MeasurementPredose up to 600 hoursArea Under the Plasma Asparaginase activity - Time curve from Time zero to infinity (AUCinf)

Secondary

MeasureTime frameDescription
Pharmacokinetics Measurements14 days post-doseObserved Plasma Asparaginase Activity 14 days post-dose (Cday 14) of S95014
Activity MeasurementDay 7, 14, 18 and 25 post-dose of either liquid or lyophilized S95014Plasma Asparaginase Activity (PAA) of ≥ 0.1 U/mL after the administration of either liquid or lyophilized S95014.
Immunogenicity MeasurementsPre-dose, post-dose (sum of 14 and 25 days post-dose)Anti-drug antibodies (ADA) formation against S95014 and anti-PEG with the lyophilized or liquid formulations (positive patients).

Countries

Russia

Participant flow

Pre-assignment details

There was a sceening period (from Day-14 to Day-1) to check the eligibility of the patient in the study

Participants by arm

ArmCount
S95014 Lyophilizate
Lyophilized S95014 reconstituted will provide 5 mL of extractable volume with the concentration of 750 U/mL. The vial of lyophilized powder (3.750 U/vial) is reconstituted with 5.2 mL of Sterile Water for Injection to obtain a 750 U/mL solution for single use. Lyophilized S95014: Lyophilized S95014 will be intravenously administered over 1 hour at the dose of 2500 U/m2 at Day 3 of the induction phase. Patients will receive other backbone chemotherapy agents as per ALL-MB 2015 protocol.
43
S95014 Liquid
Liquid S95014 is provided as 3.750 U per 5 mL solution in a single use vial to obtain a 750 U/mL solution for single use. Liquid S95014: Liquid S95014 will be intravenously administered over 1 hour at the dose of 2500 U/m2 at Day 3 of the induction phase. Patients will receive other backbone chemotherapy agents as per ALL-MB 2015 protocol.
45
Total88

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath02
Overall StudyPhysician Decision01
Overall StudyProtocol Violation01

Baseline characteristics

CharacteristicS95014 LiquidTotalS95014 Lyophilizate
Age, Categorical
<=18 years
45 Participants88 Participants43 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
0 Participants0 Participants0 Participants
Age, Continuous5.4 years
STANDARD_DEVIATION 3.52
6.1 years
STANDARD_DEVIATION 3.96
6.9 years
STANDARD_DEVIATION 4.28
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants2 Participants2 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Race (NIH/OMB)
White
44 Participants84 Participants40 Participants
Region of Enrollment
Russia
45 participants88 participants43 participants
Sex: Female, Male
Female
25 Participants42 Participants17 Participants
Sex: Female, Male
Male
20 Participants46 Participants26 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
1 / 432 / 45
other
Total, other adverse events
43 / 4345 / 45
serious
Total, serious adverse events
19 / 4318 / 45

Outcome results

Primary

Pharmacokinetics Measurement

Area Under the Plasma Asparaginase activity - Time curve from Time zero to infinity (AUCinf)

Time frame: Predose up to 600 hours

Population: The Pharmacokinetic (PK) Analysis Set included the patients who have received at least one dose of IMP and are evaluable for PK analysis : the patients who had enough samples collected to provide interpretable PK results with no deviations that might have affected the PK interpretation (e.g. infusion interrupted for any reason, deviation in the theoretical administered dose \> 10%, at least one missing PK sample during the 48 first hours, ≥ 2 missing PK samples after the 48-hour time point).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
S95014 LyophilizatePharmacokinetics Measurement362028.656 mU*day/mLGeometric Coefficient of Variation 33.55
S95014 LiquidPharmacokinetics Measurement352248.907 mU*day/mLGeometric Coefficient of Variation 31.08
Comparison: AUCinf was natural log-transformed and analyzed using an analysis of variance (ANOVA) with fixed effect for formulation. The two one-sided tests procedures were performed on the geometric mean ratio (GMR) between test (S95014 lyophilizate) and reference (S95014 liquid formulation) treatments. The 90% confidence interval for the ratio was obtained within the framework of the ANOVA.p-value: 0.0590% CI: [91.4, 115.6]ANOVA
Primary

Pharmacokinetics Measurement

Maximum observed plasma asparaginase activity (Cmax)

Time frame: Predose up to 600 hours

Population: The Pharmacokinetic (PK) Analysis Set included the patients who have received at least one dose of IMP and are evaluable for PK analysis : the patients who had enough samples collected to provide interpretable PK results with no deviations that might have affected the PK interpretation (e.g. infusion interrupted for any reason, deviation in the theoretical administered dose \> 10%, at least one missing PK sample during the 48 first hours, ≥ 2 missing PK samples after the 48-hour time point).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
S95014 LyophilizatePharmacokinetics Measurement1563.115 mU/mLGeometric Coefficient of Variation 23.11
S95014 LiquidPharmacokinetics Measurement1672.136 mU/mLGeometric Coefficient of Variation 41.91
Comparison: Cmax was natural log-transformed and analyzed using an analysis of variance (ANOVA) with fixed effect for formulation. The two one-sided tests procedures were performed on the geometric mean ratio (GMR) between test (S95014 lyophilizate) and reference (S95014 liquid formulation) treatments. The 90% confidence interval for the ratio was obtained within the framework of the ANOVA.p-value: 0.0590% CI: [82.9, 105.5]ANOVA
Secondary

Activity Measurement

Plasma Asparaginase Activity (PAA) of ≥ 0.1 U/mL after the administration of either liquid or lyophilized S95014.

Time frame: Day 7, 14, 18 and 25 post-dose of either liquid or lyophilized S95014

Population: The analysis on the Plasma Asparaginase Actvity was performed on the Safety Set analysis, defined as the set of all patients who had received at least one dose of S95014 in the study.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
S95014 LyophilizateActivity MeasurementNumber of patients who achieved Day 10 Plasma Asparaginase Activity (PAA) ≥ 0.1 U/mL43 Participants
S95014 LyophilizateActivity MeasurementNumber of patients who achieved Day 17 Plasma Asparaginase Activity (PAA) ≥ 0.1 U/mL43 Participants
S95014 LyophilizateActivity MeasurementNumber of patients who achieved Day 21 Plasma Asparaginase Activity (PAA) ≥ 0.1 U/mL41 Participants
S95014 LyophilizateActivity MeasurementNumber of patients who achieved Day 28 Plasma Asparaginase Activity (PAA) ≥ 0.1 U/mL18 Participants
S95014 LiquidActivity MeasurementNumber of patients who achieved Day 28 Plasma Asparaginase Activity (PAA) ≥ 0.1 U/mL6 Participants
S95014 LiquidActivity MeasurementNumber of patients who achieved Day 10 Plasma Asparaginase Activity (PAA) ≥ 0.1 U/mL43 Participants
S95014 LiquidActivity MeasurementNumber of patients who achieved Day 21 Plasma Asparaginase Activity (PAA) ≥ 0.1 U/mL39 Participants
S95014 LiquidActivity MeasurementNumber of patients who achieved Day 17 Plasma Asparaginase Activity (PAA) ≥ 0.1 U/mL41 Participants
Secondary

Immunogenicity Measurements

Anti-drug antibodies (ADA) formation against S95014 and anti-PEG with the lyophilized or liquid formulations (positive patients).

Time frame: Pre-dose, post-dose (sum of 14 and 25 days post-dose)

Population: The immunogenicity analyses were carried out in the Immunogenicity Analysis Set (IAS) which includes all patients who had received at least one dose of IMP and had at least one post-dose sample evaluable for immunogenicity testing.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
S95014 LyophilizateImmunogenicity MeasurementsPre-doseAnti-S95014 Negative/ Anti-PEG Not applicable38 Participants
S95014 LyophilizateImmunogenicity MeasurementsPre-doseAnti-S95014 Positive / Anti-PEG Positive2 Participants
S95014 LyophilizateImmunogenicity MeasurementsPre-doseAnti-S95014 Positive / Anti-PEG Negative3 Participants
S95014 LyophilizateImmunogenicity MeasurementsPost-dose (sum of 14 and 25 days post-dose)Anti-S95014 Negative/ Anti-PEG Not applicable38 Participants
S95014 LyophilizateImmunogenicity MeasurementsPost-dose (sum of 14 and 25 days post-dose)Anti-S95014 Positive / Anti-PEG Positive2 Participants
S95014 LyophilizateImmunogenicity MeasurementsPost-dose (sum of 14 and 25 days post-dose)Anti-S95014 Positive / Anti-PEG Negative3 Participants
S95014 LiquidImmunogenicity MeasurementsPost-dose (sum of 14 and 25 days post-dose)Anti-S95014 Positive / Anti-PEG Positive3 Participants
S95014 LiquidImmunogenicity MeasurementsPre-doseAnti-S95014 Negative/ Anti-PEG Not applicable38 Participants
S95014 LiquidImmunogenicity MeasurementsPost-dose (sum of 14 and 25 days post-dose)Anti-S95014 Negative/ Anti-PEG Not applicable39 Participants
S95014 LiquidImmunogenicity MeasurementsPre-doseAnti-S95014 Positive / Anti-PEG Positive4 Participants
S95014 LiquidImmunogenicity MeasurementsPost-dose (sum of 14 and 25 days post-dose)Anti-S95014 Positive / Anti-PEG Negative1 Participants
S95014 LiquidImmunogenicity MeasurementsPre-doseAnti-S95014 Positive / Anti-PEG Negative1 Participants
Secondary

Pharmacokinetics Measurements

Observed Plasma Asparaginase Activity 14 days post-dose (Cday 14) of S95014

Time frame: 14 days post-dose

Population: The PKAS included the patients who have received at least one dose of IMP and are evaluable for PK analysis : the patients who had enough samples collected to provide interpretable PK results with no deviations that might have affected the PK interpretation .~Cday-14 could not be calculated in one patient (in S95014 liquid group) who had only 3 positive values exceeding the Lower Limit of Quantification

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
S95014 LyophilizatePharmacokinetics Measurements496.599 mU/mLGeometric Coefficient of Variation 37.96
S95014 LiquidPharmacokinetics Measurements408.655 mU/mLGeometric Coefficient of Variation 80.35
Comparison: Cday14 was natural log-transformed and analyzed using an analysis of variance (ANOVA) with fixed effect for formulation. The two one-sided tests procedures were performed on the geometric mean ratio (GMR) between test (S95014 lyophilizate) and reference (S95014 liquid formulation) treatments. The 90% confidence interval for the ratio was obtained within the framework of the ANOVA.p-value: 0.0590% CI: [98.7, 149.6]ANOVA

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026