asparlas by is a Prescription medication manufactured, distributed, or labeled by Servier Pharmaceuticals LLC. Drug facts, warnings, and ingredients follow.
ASPARLAS is an asparagine specific enzyme indicated as a component of a multi-agent chemotherapeutic regimen for the treatment of acute lymphoblastic leukemia in pediatric and young adult patients age 1 month to 21 years. (1.1)
Injection: 3,750 units/5 mL (750 units/mL) in a single-dose vial. (3)
The most common (incidence≥10%) grade ≥ 3 adverse reactions were elevated transaminase, bilirubin increased, pancreatitis and abnormal clotting studies. (6.1)
To report SUSPECTED ADVERSE REACTIONS, contact Servier Pharmaceuticals LLC at 1-800-807-6124 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Lactation: Advise women not to breastfeed. (8.2)
See 17 for PATIENT COUNSELING INFORMATION.
The recommended dose of ASPARLAS is 2,500 units/m2 given intravenously no more frequently than every 21 days.
Monitor patients at least weekly, with bilirubin, transaminases, glucose and clinical examinations until recovery from the cycle of therapy. If an adverse reaction should occur, modify treatment according to Table 1.
|Infusion Reaction or Hypersensitivity Reaction||Grade 1||
|Grade 3 to 4||
|Hemorrhage||Grade 3 to 4||
|Pancreatitis||Grades 3 to 4||
|Thromboembolism||Uncomplicated deep vein thrombosis||
|Severe or life-threatening thrombosis||
|Hepatotoxicity||Total bilirubin more than 3 times to no more than 10 times the upper limit of normal||
|Total bilirubin more than 10 times the upper limit of normal||
ASPARLAS is a clear and colorless solution. Visually inspect parenteral drug products for particulate matter, cloudiness, or discoloration prior to administration. If any of these are present, discard the vial. Do not administer if ASPARLAS has been shaken or vigorously agitated, frozen, or stored at room temperature for more than 48 hours.
ASPARLAS is contraindicated in patients with:
Grade 3 and 4 hypersensitivity reactions including anaphylaxis have been reported in clinical trials with ASPARLAS with an incidence between 7 to 21% [see Contraindications (4), Adverse Reactions (6.1)]. Hypersensitivity reactions observed with other asparaginases include angioedema, lip swelling, eye swelling, erythema, blood pressure decreased, bronchospasm, dyspnea, pruritus and rash.
Because of the risk of serious allergic reactions (e.g., life-threatening anaphylaxis), administer ASPARLAS in a clinical setting with resuscitation equipment and other agents necessary to treat anaphylaxis (e.g., epinephrine, oxygen, intravenous steroids, antihistamines) [see Dosage and Administration (2)] and observe patients for 1 hour after administration. Discontinue ASPARLAS in patients with serious hypersensitivity reactions.
Cases of pancreatitis have been reported in clinical trials with ASPARLAS with an incidence between 12 to 16% [see Adverse Reactions (6.1)]. Hemorrhagic or necrotizing pancreatitis have been reported with other asparaginases.
Inform patients of the signs and symptoms of pancreatitis, which, if left untreated, could be fatal. Assess serum amylase and/or lipase levels to identify early signs of pancreatic inflammation. Discontinue ASPARLAS if pancreatitis is suspected; if pancreatitis is confirmed, do not resume ASPARLAS [see Dosage and Administration (2.2)].
Serious thrombotic events, including sagittal sinus thrombosis, have been reported in clinical trials with ASPARLAS with an incidence of 9 to 12%. Discontinue ASPARLAS in patients experiencing serious thrombotic events [see Dosage and Administration (2.2), Adverse Reactions (6.1)].
Hemorrhage associated with increased prothrombin time (PT), increased partial thromboplastin time (PTT), and hypofibrinogenemia have been reported in patients receiving ASPARLAS [see Adverse Reactions (6.1)]. Evaluate patients with signs and symptoms of hemorrhage with coagulation parameters including PT, PTT, fibrinogen. Consider appropriate replacement therapy in patients with severe or symptomatic coagulopathy [see Dosage and Administration (2.2)].
Hepatotoxicity and abnormal liver function, including elevations of transaminase, bilirubin (direct and indirect), reduced serum albumin, and plasma fibrinogen can occur. Evaluate bilirubin and transaminases at least weekly, during cycles of treatment that include ASPARLAS through 6 weeks after the last dose of ASPARLAS. In the event of serious liver toxicity, discontinue treatment with ASPARLAS and provide supportive care [see Dosage and Administration (2.2), Contraindications (4), Adverse Reactions (6.1)].
The following clinically significant adverse reactions are described in greater detail in other sections of the labeling:
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
The safety of ASPARLAS was investigated in Study DFCI 11-001, an open-label, randomized, active-controlled multicenter clinical trial that treated 237 children and adolescents with newly-diagnosed ALL or lymphoblastic lymphoma, with ASPARLAS 2,500 U/m2 (n=118) or pegaspargase 2,500 U/m2 (n=119) as part of a Dana Farber Cancer Institute (DFCI) ALL Consortium backbone therapy. The median age on enrollment was 5 years (range, 1-20) years. The majority of patients were male (62%) and white (70%). Most patients were considered standard risk (SR, 59%) and had B-cell lineage ALL (87%).
The median number of doses during the study was 11 doses for ASPARLAS (administered every three weeks) and 16 doses for pegaspargase (administered every two weeks). The median duration of exposure was 8 months for both ASPARLAS and pegaspargase.
There was 1 fatal adverse reaction (multi-organ failure in the setting of chronic pancreatitis associated with a pancreatic pseudocyst).
Table 2 summarizes the incidence of selected Grades ≥3 adverse reactions that occurred in 2 or more patients receiving ASPARLAS. Because not all grade 1 and 2 adverse reactions were collected prospectively, only grade 3 and 4 adverse events are presented in Table 2.
|Elevated transaminase||61 (52)||79 (66)|
|Bilirubin increased||24 (20)||30 (25)|
|Pancreatitis||21 (18)||29 (24)|
|Abnormal clotting studies||17 (14)||25 (21)|
|Diarrhea||10 (9)||6 (5)|
|Hypersensitivity||9 (8)||8 (7)|
|Embolic and thrombotic events||9 (8)||10 (8)|
|Sepsis||6 (5)||7 (6)|
|Dyspnea||5 (4)||1 (1)|
|Hemorrhages||5 (4)||5 (4)|
|Fungal infection||4 (3)||3 (3)|
|Pneumonia||4 (3)||8 (7)|
|Arrhythmia||2 (2)||1 (1)|
|Cardiac failure||2 (2)||1 (1)|
In the subgroup of patients with B-cell lineage ALL, the complete remission rate in the ASPARLAS arm was 98% (95/97), compared to 99% in the pegaspargase arm; the Kaplan-Meier estimates of overall survival of the treatment arms were comparable.
The safety of ASPARLAS was also evaluated in Study AALL07P4, an open-label, randomized, active-controlled, multicenter clinical trial that treated patients with newly-diagnosed high-risk B-precursor ALL using ASPARLAS 2,500 U/m2 (n=43) or 2,100 U/m2 (n=68), or pegaspargase 2,500 U/m2 (n=52), as a component of an augmented Berlin-Frankfurt-Münster (BFM) therapy regimen. The median age was 11 years (range 1 to 26 years); the median duration of exposure was 7 months for both ASPARLAS and pegaspargase. In this study, the induction mortality of patients treated with ASPARLAS was 2.8% (3 out of 111); there were no induction deaths among 52 patients treated with pegaspargase.
There are no available data on ASPARLAS use in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. In animal reproduction studies, intravenous administration of calaspargase pegol-mknl to pregnant rats during organogenesis at doses 0.2 to 1 times the maximum recommended human doses did not result in adverse developmental outcomes. Published literature studies in pregnant rabbits, however,suggest asparagine depletion may cause harm to the animal offspring (see Data). Advise patients of the potential risk to a fetus.
The estimated background risk of major birth defects and miscarriage for the indicated population(s) is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.
In an embryofetal development study, calaspargase pegol-mknl was administered intravenously at doses of 75, 150, and 300 U/kg (0.2, 0.6 and 1 times the maximum recommended human dose, respectively, based on AUC) to pregnant rats during the period of organogenesis. Maternal toxicity of decreased body weight and food consumption was seen at all dose levels resulting in reductions in gravid uterine and placental weights, and slight reductions in fetal body weights. No evidence of structural abnormalities or embryo-fetal mortality were observed in this study at any of the doses tested. Published literature studies in which pregnant rabbits were administered L-asparaginase or suggested harm to the animal offspring.
There are no data on the presence of calaspargase pegol-mknl in human milk, the effects on the breastfed child, or the effects on milk production. Because many drugs are excreted in human milk and because of the potential for adverse reactions in a breastfed child, advise lactating women not to breastfeed while receiving ASPARLAS and for 3 months after the last dose.
Based on published literature studies in pregnant animals, ASPARLAS can cause fetal harm when administered to a pregnant woman [see Use in Specific Populations (8.1)].
Conduct pregnancy testing in females of reproductive potential prior to starting treatment with ASPARLAS.
Advise females of reproductive potential to avoid becoming pregnant while receiving ASPARLAS. Females should use effective contraceptive methods, including a barrier method, during treatment and for at least 3 months after the last dose of ASPARLAS. Since there is a potential for an indirect interaction between ASPARLAS and oral contraceptives, the concomitant use of ASPARLAS and oral contraceptives is not recommended. Another, non-oral contraceptive method should be used in women of childbearing potential.
The safety and effectiveness of ASPARLAS in the treatment of ALL have been established in pediatric patients 1 month to < 17 years (no data for the age group < 1 month old). Use of ASPARLAS in these age groups is supported by evidence from an adequate and well-controlled trial with additional safety from a second trial. The trials included 208 children with ALL or lymphoblastic lymphoma treated with ASPARLAS; there were 19 infants (1 month to < 2 years old), 128 children (2 years to < 12 years old), and 61 adolescents (12 years to < 17 years old). There were no clinically meaningful differences in safety or nadir serum asparaginase activity across age groups [see Adverse Reactions (6.1), Clinical Studies (14)].
Calaspargase pegol-mknl contains an asparagine specific enzyme derived from Escherichia coli, as a conjugate of L-asparaginase (L-asparagine amidohydrolase) and monomethoxypolyethylene glycol (mPEG) with a succinimidyl carbonate (SC) linker. The SC linker is a chemically stable carbamate bond between the mPEG moiety and the lysine groups of L-asparaginase.
L-asparaginase is a tetrameric enzyme that is produced endogenously by E. coli and consists of identical 34.5 kDa subunits. Approximately 31 to 39 molecules of SC-PEG are linked to L-asparaginase; the molecular weight of each SC-PEG molecule is about 5 kDa. The activity of ASPARLAS is expressed in units (U).
ASPARLAS injection is supplied as a clear, colorless, preservative-free, isotonic sterile solution in phosphate-buffered saline, pH 7.3 that requires dilution prior to intravenous infusion. Each vial of ASPARLAS contains 3,750 units in 5 mL of solution. Each milliliter contains 750 units of calaspargase pegol-mknl; dibasic sodium phosphate, USP (5.58 mg); monobasic sodium phosphate, USP (1.20 mg); and sodium chloride, USP (8.50 mg) in water for injection, USP.
L-asparaginase is an enzyme that catalyzes the conversion of the amino acid L-asparagine into aspartic acid and ammonia. The pharmacological effect of ASPARLAS is thought to be based on selective killing of leukemic cells due to depletion of plasma L-asparagine. Leukemic cells with low expression of asparagine synthetase have a reduced ability to synthesize L-asparagine, and therefore depend on an exogenous source of L-asparagine for survival.
Calaspargase pegol-mknl pharmacodynamic (PD) response was assessed through measurement of plasma and cerebrospinal fluid (CSF) asparagine concentrations via an LC-MS/MS assay.
Asparagine concentrations in plasma (N=41) were maintained below the assay limit of quantification for more than 18 days following a single dose of ASPARLAS 2,500 U/m2 during the induction phase. Mean CSF asparagine concentrations decreased from a pretreatment concentration of 0.8 µg/mL (N=10) to 0.2 µg/mL on Day 4 (N=37) and remained decreased at 0.2 µg/mL (N=35) 25 days after the administration of a single dose of ASPARLAS 2,500 U/m2 in the induction phase.
Calaspargase pegol-mknl pharmacokinetics (PK) were assessed through measurement of plasma asparaginase activity via a coupled enzymatic assay.
The plasma asparaginase activity pharmacokinetics were characterized in 43 patients (1 to 26 years) with newly diagnosed high risk B-precursor ALL treated with a multidrug backbone therapy. Table 3 summarizes the plasma asparaginase activity pharmacokinetic parameters after a single dose of ASPARLAS 2,500 U/m2 in the induction phase.
|Parameter||Arithmetic Mean (%CV)
|Cmax (U/mL)||1.62 (23.0)|
|AUC0-25day (day∙U/mL)||16.9 (23.2)*|
|AUC0–∞ (day∙U/mL)†||25.5 (30.4)*|
|Tmax (h)†||1.17 (1.05, 5.47)‡|
|Vss (L)||2.96 (84.3)*|
|t1/2 (day)§||16.1 (51.9)*|
|Clearance (L/day)||0.147 (76.1)*|
The determination of efficacy was based on a demonstration of the achievement and maintenance of nadir serum asparaginase activity (NSAA) above the level of 0.1 U/mL using ASPARLAS 2500 U/m2 intravenously every 3 weeks. The pharmacokinetics of ASPARLAS were studied when used in combination with multiagent chemotherapy in 124 patients with B cell lineage acute lymphoblastic leukemia (ALL). Among these patients, the median age was 11.5 years (range 1 – 26); 62 (50%) were male, 102 (82%) white, 6 (5%) Asian, 5 (4%) Black or African American, 2 (2%) Native Hawaiian or Pacific Islander and 9 (7%) other or unknown. The results showed that 123 (99%, 95% CI: 96% - 100%) of the 124 patients maintained NSAA > 0.1 U/mL at weeks 6, 12, 18, 24 and 30.
ASPARLAS injection is supplied as a clear, colorless, preservative-free sterile solution in single-dose vials containing 3,750 units of calaspargase pegol-mknl per 5 mL solution (NDC: 72694-515-01).
Advise Patients/Caregivers of the following risks of ASPARLAS:
Inform patients on the possibility of serious allergic reactions, including anaphylaxis. Instruct the patient on the symptoms of allergic reactions and to seek medical advice immediately if they experience such symptoms [see Warnings and Precautions (5.1)].
Instruct patients on the signs and symptoms of pancreatitis and to seek immediate medical attention if they experience severe abdominal pain [see Warnings and Precautions (5.2)].
Instruct patients on the risk of hyperglycemia and glucose intolerance. Advise patients to seek medical advice if they experience excessive thirst or any increase in the volume or frequency of urination [see Dosage and Administration (2.2)].
Instruct patients on the risk of thrombosis and to seek medical advice immediately if they experience severe headache, arm or leg swelling, shortness of breath, or chest pain [see Warnings and Precautions (5.3)].
Advise patients to report any unusual bleeding or bruising to their physician [see Warnings and Precautions (5.4)].
Advise patients to contact their healthcare provider immediately for jaundice, severe nausea or vomiting, or easy bruising or bleeding [see Warnings and Precautions (5.5)].
Pregnancy and Lactation
Advise female patients of reproductive potential to use effective contraceptive methods while receiving ASPARLAS and for at least 3 months after the last dose. Advise patients to notify their healthcare provider immediately in the event of a pregnancy or if pregnancy is suspected during ASPARLAS treatment. Since there is a potential for an indirect interaction between ASPARLAS and oral contraceptives, the concomitant use of ASPARLAS and oral contraceptives is not recommended [see Use in Specific Populations (8.3)].
Advise lactating women not to breastfeed during treatment with ASPARLAS and for at least 3 months after the last dose [see Use in Specific Populations (8.2)].
Servier Pharmaceuticals LLC
Boston, MA 02210
U.S. License No. 2125
Copyright © 2019
All rights reserved.
ASPARLASTM is a registered trademark of Servier IP UK Ltd, a wholly owned indirect subsidiary of Les
Laboratoires Servier. Servier Pharmaceuticals LLC is a wholly owned indirect subsidiary of Les Laboratoires Servier.
3750 units/5 mL
For Intravenous Infusion
One single-dose vial.
Discard unused portion.
Must dilute before use.
calaspargase pegol injection, solution
|Labeler - Servier Pharmaceuticals LLC (116608503)|
|Exelead, Inc||961822389||MANUFACTURE(72694-515) , PACK(72694-515) , LABEL(72694-515) , ANALYSIS(72694-515)|
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SERVIER IP UK LIMITED