Sarclisa
(isatuximab-irfc)Dosage & Administration
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Sarclisa Prescribing Information
SARCLISA is indicated:
- in combination with pomalidomide and dexamethasone, for the treatment of adult patients with multiple myeloma who have received at least 2 prior therapies including lenalidomide and a proteasome inhibitor.
- in combination with carfilzomib and dexamethasone, for the treatment of adult patients with relapsed or refractory multiple myeloma who have received 1 to 3 prior lines of therapy.
- in combination with bortezomib, lenalidomide, and dexamethasone, for the treatment of adult patients with newly diagnosed multiple myeloma who are not eligible for autologous stem cell transplant (ASCT).
Recommended Dosage
- Administer pre-infusion medications [see Dosage and Administration (2.2)].
- SARCLISA should be administered by a healthcare professional, with immediate access to emergency equipment and appropriate medical support to manage infusion-related reactions if they occur [see Warnings and Precautions (5.1)].
The recommended dose of SARCLISA is 10 mg/kg actual body weight administered as an intravenous infusion in combination with pomalidomide and dexamethasone or in combination with carfilzomib and dexamethasone, or in combination with bortezomib, lenalidomide, and dexamethasone.
SARCLISA dosing schedules are provided in Tables 1 and 2 [see Clinical Studies (14)].
| Cycles | Dosing schedules |
|---|---|
| Cycle 1 (28-day cycle) | Days 1, 8, 15, and 22 (weekly) |
| Cycle 2 and beyond (28-day cycles) | Days 1, 15 (every 2 weeks) |
| Cycles | Dosing schedules |
|---|---|
| Cycle 1 (42-day cycle) | Days 1, 8, 15, 22, and 29 |
| Cycles 2 to 4 (42-day cycles) | Days 1, 15, and 29 (every 2 weeks) |
| Cycles 5 to 17 (28-day cycles) | Days 1 and 15 (every 2 weeks) |
| Cycles 18 and beyond (28-day cycles) | Day 1 (every 4 weeks) |
Treatment is repeated until disease progression or unacceptable toxicity.
SARCLISA is used in combination with pomalidomide and dexamethasone or in combination with carfilzomib and dexamethasone or in combination with bortezomib, lenalidomide, and dexamethasone. For dosing instructions of combination agents administered with SARCLISA, see Clinical Studies (14) and manufacturer's prescribing information.
Missed SARCLISA Doses
If a planned dose of SARCLISA is missed, administer the dose as soon as possible and adjust the treatment schedule accordingly, maintaining the treatment interval.
Recommended Premedications and Antimicrobial Prophylaxis
Recommended Premedications
Administer the following premedications prior to SARCLISA infusion to reduce the risk and severity of infusion-related reactions [see Warnings and Precautions (5.1)]:
- When administered in combination with SARCLISA and pomalidomide: Dexamethasone 40 mg orally or intravenously (or 20 mg orally or intravenously for patients ≥75 years of age).
When administered in combination with SARCLISA and carfilzomib: Dexamethasone 20 mg (intravenously on the days of SARCLISA and/or carfilzomib infusions, orally on day 22 in cycle 2 and beyond, and orally on day 23 in all cycles).
When administered in combination with SARCLISA, bortezomib, and lenalidomide: Dexamethasone 20 mg (intravenously on the days of SARCLISA infusions, orally on the other days). - Acetaminophen 650 mg to 1,000 mg orally (or equivalent).
- H2 antagonist
- Diphenhydramine 25 mg to 50 mg orally or intravenously (or equivalent). The intravenous route is preferred for at least the first 4 infusions.
The above recommended dose of dexamethasone (orally or intravenously) corresponds to the dose to be administered before infusion as part of the premedication and part of the backbone treatment. Administer dexamethasone before SARCLISA and pomalidomide, before SARCLISA and carfilzomib, and before SARCLISA, bortezomib, and lenalidomide administration.
Administer the recommended premedication agents 15 to 60 minutes prior to starting a SARCLISA infusion.
Recommended Antimicrobial Prophylaxis
Initiate antibacterial and antiviral prophylaxis (such as herpes zoster prophylaxis) if needed based on standard guidelines [see Warnings and Precautions (5.2)].
Dosage Modifications
No dose reduction of SARCLISA is recommended. Dose delay may be required to allow recovery of blood counts in the event of hematological toxicity [see Warnings and Precautions (5.3, 5.5)]. For information concerning drugs given in combination with SARCLISA, see manufacturer's prescribing information.
Preparation
Prepare the solution for infusion using aseptic technique as follows:
Calculate the dose (mg) of required SARCLISA based on actual patient weight (measured prior to each cycle to have the administered dose adjusted accordingly) [see Dosage and Administration (2.1)]. More than one SARCLISA vial may be necessary to obtain the required dose for the patient.
- Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.
- Remove the volume of diluent from the 250 mL Sodium Chloride Injection, or 5% Dextrose Injection, diluent bag that is equal to the required volume of SARCLISA injection.
- Withdraw the necessary volume of SARCLISA injection from the vial and dilute by adding to the infusion bag of 0.9% Sodium Chloride Injection, or 5% Dextrose Injection. Discard any unused portion left in the vial.
- The infusion bag must be made of polyolefins (PO), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) with di-(2-ethylhexyl) phthalate (DEHP) or ethyl vinyl acetate (EVA).
- Gently homogenize the diluted solution by inverting the bag. Do not shake.
Administration
- Administer the infusion solution by intravenous infusion using an intravenous tubing infusion set (in PE, PVC with or without DEHP, polybutadiene [PBD], or polyurethane [PU]) with a 0.22 micron in-line filter (polyethersulfone [PES], polysulfone, or nylon).
- The infusion solution should be administered for a period of time that will depend on the infusion rate (see Table 3). Use prepared SARCLISA infusion solution within 48 hours when stored refrigerated at 2°C to 8°C, followed by 8 hours (including the infusion time) at room temperature.
- Do not administer SARCLISA infusion solution concomitantly in the same intravenous line with other agents.
- On the days where both SARCLISA and carfilzomib are administered, administer dexamethasone first, followed by SARCLISA infusion, then followed by carfilzomib infusion.
Infusion Rates
Following dilution, administer the SARCLISA infusion solution intravenously at the infusion rates presented in Table 3. Incremental escalation of the infusion rate should be considered only in the absence of infusion-related reactions [see Warnings and Precautions (5.1) and Adverse Reactions (6.1)].
| Dilution Volume | Initial Rate | Absence of Infusion-Related Reaction | Rate Increment | Maximum Rate | |
|---|---|---|---|---|---|
| First infusion | 250 mL | 25 mL/hour | For 60 minutes | 25 mL/hour every 30 minutes | 150 mL/hour |
| Second infusion | 250 mL | 50 mL/hour | For 30 minutes | 50 mL/hour for 30 minutes then increase by 100 mL/hour | 200 mL/hour |
| Subsequent infusions | 250 mL | 200 mL/hour | – | – | 200 mL/hour |
SARCLISA is a clear to slightly opalescent, colorless to slightly yellow solution, essentially free of visible particulates available as:
- Injection: 100 mg/5 mL (20 mg/mL) in a single-dose vial
- Injection: 500 mg/25 mL (20 mg/mL) in a single-dose vial
Pregnancy
Risk Summary
SARCLISA can cause fetal harm when administered to a pregnant woman. The assessment of isatuximab-irfc-associated risks is based on the mechanism of action and data from target antigen CD38 knockout animal models (see Data). There are no available data on SARCLISA use in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage or adverse maternal or fetal outcomes. Animal reproduction toxicity studies have not been conducted with isatuximab-irfc. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, miscarriage, 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% to 4% and 15% to 20%, respectively.
The combination of SARCLISA and pomalidomide or lenalidomide is contraindicated in pregnant women because pomalidomide and lenalidomide may cause birth defects and death of the unborn child. Refer to the pomalidomide or lenalidomide prescribing information on use during pregnancy. Pomalidomide and lenalidomide are only available through a REMS program.
Clinical Considerations
Fetal/neonatal reactions
Immunoglobulin G1 monoclonal antibodies are known to cross the placenta. Based on its mechanism of action, SARCLISA may cause depletion of fetal CD38-positive immune cells and decreased bone density. Defer administration of live vaccines to neonates and infants exposed to SARCLISA in utero until a hematology evaluation is completed.
Data
Animal data
Mice that were genetically modified to eliminate all CD38 expression (CD38 knockout mice) had reduced bone density which recovered 5 months after birth. Data from studies using CD38 knockout animal models also suggest the involvement of CD38 in regulating humoral immune responses (mice), feto-maternal immune tolerance (mice), and early embryonic development (frogs).
Lactation
Risk Summary
There are no available data on the presence of isatuximab-irfc in human milk, milk production, or the effects on the breastfed child. Maternal immunoglobulin G is known to be present in human milk. The effects of local gastrointestinal exposure and limited systemic exposure in the breastfed infant to SARCLISA are unknown. Because of the potential for serious adverse reactions in the breastfed child from isatuximab-irfc administered in combination with pomalidomide or lenalidomide and dexamethasone, advise lactating women not to breastfeed during treatment with SARCLISA. Refer to pomalidomide or lenalidomide prescribing information for additional information.
Females and Males of Reproductive Potential
SARCLISA can cause fetal harm when administered to a pregnant woman [see Use in Specific Populations (8.1)].
Pregnancy Testing
With the combination of SARCLISA with pomalidomide or lenalidomide, refer to the pomalidomide or lenalidomide labeling for pregnancy testing requirements prior to initiating treatment in females of reproductive potential.
Contraception
Females
Advise female patients of reproductive potential to use effective contraception during treatment and for 5 months after the last dose of SARCLISA. Additionally, refer to the pomalidomide or lenalidomide labeling for contraception requirements prior to initiating treatment in females of reproductive potential.
Males
Refer to the pomalidomide or lenalidomide prescribing information.
Pediatric Use
The safety and effectiveness of SARCLISA in pediatric patients have not been established.
The safety and efficacy of SARCLISA in combination with chemotherapy were assessed, but not established, in an open-label study (ACT15378, ISAKIDS, NCT03860844) in 62 pediatric patients aged 1.4 years to < 17 years with relapsed or refractory T-acute lymphoblastic leukemia (T-ALL), B-acute lymphoblastic leukemia (B-ALL), or acute myeloid leukemia (AML). No new safety signals were observed in pediatric patients in this trial.
Body weight adjusted clearance at steady state and volume of distribution of isatuximab in pediatric patients were within the range of values that were observed in adults.
Geriatric Use
Of the total number of patients with relapsed or refractory multiple myeloma in clinical studies of SARCLISA, 56% (n=586) were 65 years of age and older, while 16% (n=163) were 75 years of age and older [see Clinical Studies (14)]. No overall differences in safety or effectiveness were observed between patients 65 years of age and older compared to younger patients, and other reported clinical experience has not identified differences in responses between the adults 65 years of age and older and younger patients, but greater sensitivity of some older individuals cannot be ruled out.
Of the total number of SARCLISA-treated patients with newly diagnosed multiple myeloma in IMROZ, 72% (n=319) were less than 75 years of age and 28% (n=125) were 75 years of age and older. The clinical trial did not enroll patients over age 80 [see Clinical Studies (14)]. Adverse reactions occurring at a higher frequency in the SARCLISA arm (≥5%) in patients 75 years of age and older included neutropenia. Adverse reactions leading to dose modifications in patients 75 years of age and older occurred at a higher frequency (≥5%) in the SARCLISA arm. The hazard ratio for overall survival (OS) in patients 75 years of age and older was 1.25 [95% CI: 0.68 to 2.3].
SARCLISA is contraindicated in patients with severe hypersensitivity to isatuximab-irfc or to any of its excipients [see Warnings and Precautions (5.1)].
Infusion-Related Reactions
Serious infusion-related reactions including life-threatening anaphylactic reactions have occurred with SARCLISA treatment. Severe signs and symptoms included cardiac arrest, hypertension, hypotension, bronchospasm, dyspnea, angioedema, and swelling. In clinical trials (ICARIA-MM, IKEMA, and IMROZ), in patients treated with SARCLISA (N=592), infusion-related reactions occurred in 206 patients (35%). Among these 206 patients, 92% experienced infusion-related reactions during the first infusion and 12% after the first cycle. The most common symptoms (≥5%) of an infusion-related reaction included dyspnea and cough. Grade 1 infusion-related reactions were reported in 6% of patients, grade 2 in 28%, and grade 3 or 4 in 1.2%. Anaphylactic reactions occurred in less than 1% of patients. The total incidence of SARCLISA infusion interruptions was less than 1% and the incidence of patients with at least one SARCLISA infusion interruption due to infusion-related reactions was 26%. The median time to first SARCLISA infusion interruption was 61 minutes (range 4 to 240 minutes). SARCLISA was discontinued in 1% of patients due to infusion-related reactions.
To decrease the risk and severity of infusion-related reactions, premedicate patients prior to SARCLISA infusion with acetaminophen, H2 antagonists, diphenhydramine, or equivalent, and dexamethasone [see Dosage and Administration (2.2)].
Monitor vital signs frequently during the entire SARCLISA infusion. For patients with grade ≥2 reactions, interrupt SARCLISA infusion and provide appropriate medical management. For patients with grade 2 or grade 3 reactions, if symptoms improve to grade ≤1, restart SARCLISA infusion at half of the initial infusion rate, with supportive care as needed, and closely monitor patients. If symptoms do not recur after 30 minutes, the infusion rate may be increased to the initial rate, and then increased incrementally, as shown in Table 3 [see Dosage and Administration (2.5)]. In case symptoms do not improve to grade ≤1 after interruption of SARCLISA infusion, persist or worsen despite appropriate medications, or require hospitalization, permanently discontinue SARCLISA and institute appropriate management. Permanently discontinue SARCLISA if an anaphylactic reaction or life-threatening (grade 4) infusion-related reaction occurs and institute appropriate management.
Infections
SARCLISA can cause severe, life-threatening, or fatal infections. In patients who received SARCLISA at the recommended dose in ICARIA-MM, IKEMA, and IMROZ (N=592), serious infections, including opportunistic infections, occurred in 46% of patients, grade 3 or 4 infections occurred in 43%, and fatal infections occurred in 4.7%. The most common type of serious infection reported was pneumonia (32%).
Monitor patients for signs and symptoms of infection prior to and during treatment with SARCLISA and treat appropriately. Administer prophylactic antimicrobials according to guidelines [see Dosage and Administration (2.2)].
Neutropenia
SARCLISA can cause neutropenia.
In clinical trials (ICARIA-MM, IKEMA, and IMROZ), in patients treated with SARCLISA (N=592), neutropenia based on laboratory values occurred in 81%, with grade 3 or 4 occurring in 52%. Neutropenic infections occurred in 12% of patients, with grade 3 or 4 in 4.9%, and febrile neutropenia in 4% [see Adverse Reactions (6.1)].
Monitor complete blood cell counts periodically during treatment. If needed, use antibacterial and antiviral prophylaxis during treatment [see Dosage and Administration (2.2)]. Monitor patients with neutropenia for signs of infection. In case of grade 4 neutropenia delay SARCLISA dose until neutrophil count recovery to at least 1 × 109/L, and provide supportive care with growth factors, according to institutional guidelines. No dose reductions of SARCLISA are recommended.
Second Primary Malignancies
The incidence of second primary malignancies, during treatment and post-treatment, is increased in patients treated with SARCLISA-containing regimens. In clinical trials (ICARIA-MM, IKEMA, and IMROZ), in patients treated with SARCLISA (N=592), second primary malignancies occurred in 71 patients (12%).
In ICARIA-MM, at a median follow-up time of 52 months, second primary malignancies occurred in 7% of patients in the Isa-Pd arm and in 2% of patients in the Pd arm.
In IKEMA study, at a median follow-up time of 57 months, second primary malignancies occurred in 10% of patients in the Isa-Kd arm and in 8% of patients in the Kd arm.
In IMROZ study, at a median follow-up time of 60 months, second primary malignancies occurred in 16% of patients in the Isa-VRd arm and in 9% of patients in the VRd arm.
The most common (≥1%) second primary malignancies in ICARIA-MM, IKEMA, and IMROZ (N=592) included skin cancers (7% with SARCLISA-containing regimens and 3.1% with comparative regimens) and solid tumors other than skin cancer (4.6% with SARCLISA-containing regimens and 2.9% with comparative regimens). Patients with non-melanoma skin cancer continued treatment after resection of the skin cancer, except 2 patients on the Isa-VRd arm and 1 patient on the VRd arm of the IMROZ study.
Monitor patients for the development of second primary malignancies.
Laboratory Test Interference
Interference with Serological Testing (Indirect Antiglobulin Test)
SARCLISA binds to CD38 on red blood cells (RBCs) and may result in a false positive indirect antiglobulin test (indirect Coombs test). This interference with the indirect Coombs test may persist for approximately 6 months after the last infusion of SARCLISA. The indirect antiglobulin test was positive during Isa-Pd treatment in 68% of the tested patients, and during Isa-Kd treatment in 63% of patients. In patients with a positive indirect antiglobulin test, blood transfusions were administered without evidence of hemolysis. ABO/RhD typing was not affected by SARCLISA treatment.
Before the first SARCLISA infusion, conduct blood type and screen tests on SARCLISA-treated patients. Consider phenotyping prior to starting SARCLISA treatment. If treatment with SARCLISA has already started, inform the blood bank that the patient is receiving SARCLISA and SARCLISA interference with blood compatibility testing can be resolved using dithiothreitol-treated RBCs. If an emergency transfusion is required, non–cross-matched ABO/RhD-compatible RBCs can be given as per local blood bank practices [see Drug Interactions (7.1)].
Interference with Serum Protein Electrophoresis and Immunofixation Tests
SARCLISA is an IgG kappa monoclonal antibody that can be incidentally detected on both serum protein electrophoresis and immunofixation assays used for the clinical monitoring of endogenous M-protein. This interference can impact the accuracy of the determination of complete response in some patients with IgG kappa myeloma protein [see Drug Interactions (7.1)].
Embryo-Fetal Toxicity
Based on the mechanism of action, SARCLISA can cause fetal harm when administered to a pregnant woman. SARCLISA may cause fetal immune cell depletion and decreased bone density. Advise pregnant women of the potential risk to a fetus. Advise females with reproductive potential to use an effective method of contraception during treatment with SARCLISA and for 5 months after the last dose [see Use in Specific Populations (8.1, 8.3)]. The combination of SARCLISA with pomalidomide or lenalidomide is contraindicated in pregnant women because pomalidomide or lenalidomide may cause birth defects and death of the unborn child. Refer to the pomalidomide or lenalidomide prescribing information on use during pregnancy.