Sarilumab


Generic Medicine Info
Indications and Dosage
Subcutaneous
Rheumatoid arthritis
Adult: For moderately to severely active cases in patients who have inadequate response or intolerance to 1 or more DMARDs: As monotherapy or in combination with methotrexate or nonbiologic DMARDs: 200 mg once every 2 weeks. Do not start the therapy if the baseline ANC is <2,000 cells/mm3; platelets <150,000 cells/mm3; ALT/AST >1.5 times the ULN. Dose reduction, dosing interruption or discontinuation may be required according to individual safety or tolerability (refer to detailed product guideline).
Contraindications
Active infections, including localised infections. Concurrent administration of live vaccines, and use in combination with biologic DMARDs (e.g. etanercept, anakinra, rituximab).
Special Precautions
Patient with chronic or recurrent infections, history of serious or opportunistic infection, underlying conditions predisposing to infection, HIV infection; history of diverticulitis or gastrointestinal ulceration. Patients exposed to TB and those who resided in or travelled to areas with endemic TB or mycoses. Hepatic impairment. Elderly. Pregnancy and lactation.
Adverse Reactions
Significant: Gastrointestinal perforation, haematological effects (e.g. neutropenia, thrombocytopenia), viral reactivation (e.g. herpes zoster), increased risk of malignancy; increased hepatic transaminase levels; increased triglycerides, LDL and HDL levels; hypersensitivity reactions, including anaphylaxis, rash, urticaria, and inj site rash.
Blood and lymphatic system disorders: Leucopenia.
Gastrointestinal disorders: Oral herpes simplex infection.
General disorders and administration site conditions: Inj site reactions (e.g. pruritus, erythema).
Immune system disorders: Antibody development.
Renal and urinary disorders: UTI.
Respiratory, thoracic and mediastinal disorders: Nasopharyngitis, URTI.
Potentially Fatal: Serious infections (e.g. active pulmonary or extrapulmonary TB [including reactivation of latent TB], invasive fungal infections [e.g. candidiasis, pneumocystis], bacterial [e.g. pneumonia, cellulitis], viral, and other opportunistic infections).
Patient Counseling Information
Women of childbearing potential must use proven birth control methods during therapy and up to 3 months after stopping the treatment. Consider using other reliable contraceptive methods recommended by the doctor as oral contraceptives may be ineffective.
Monitoring Parameters
Assess for TB risk factors and perform latent TB screening prior to initiation of therapy. Monitor neutrophils, platelets, ALT/AST prior to therapy, then 4-8 weeks after treatment initiation, and every 3 months thereafter; LFT, serum bilirubin (as clinically necessary); lipid panel (4-8 weeks after initiation and approx every 6 months during therapy). Monitor for signs or symptoms of infection (including TB) before, during, and after therapy; hypersensitivity reaction, and gastrointestinal perforation.
Drug Interactions
May alter the serum concentrations of CYP substrates with narrow therapeutic index (e.g. warfarin, theophylline). May reduce the exposure and effectiveness of oral contraceptives and statins (e.g. simvastatin, atorvastatin, lovastatin). May increase the risk of gastrointestinal perforation when given with NSAIDs or corticosteroids.
Potentially Fatal: Increased risk of immunosuppression and infection with biologic DMARDs (e.g. etanercept, anakinra, rituximab). Increased risk of infections with concurrent administration of live vaccines.
Action
Description:
Mechanism of Action: Sarilumab is a recombinant human immunoglobulin G1 (IgG1) monoclonal antibody which specifically binds to both soluble and membrane-bound interleukin-6 (IL-6) receptors, thereby inhibiting pro-inflammatory cytokine IL-6 signalling pathway leading to a reduction in inflammatory mediator production.
Pharmacokinetics:
Absorption: Absolute bioavailability: Approx 80% (SC). Time to peak plasma concentration: 2-4 days.
Distribution: Crosses the placenta.
Excretion: Via linear, non-saturable proteolytic pathway at high concentrations; non-linear saturable proteolytic pathway predominates at low concentrations. Parallel elimination half-life: 8-10 days (initial half-life); 21 days (effective half-life).
Storage
Store between 2-8°C. Do not freeze or shake. Protect from light. May store below 25°C for up to 14 days, if necessary.
MIMS Class
Immunosuppressants
ATC Classification
L04AC14 - sarilumab ; Belongs to the class of interleukin inhibitors. Used as immunosuppressants.
References
Anon. Sarilumab. AHFS Clinical Drug Information [online]. Bethesda, MD. American Society of Health-System Pharmacists, Inc. https://www.ahfscdi.com. Accessed 01/02/2023.

Anon. Sarilumab. Lexicomp Online. Hudson, Ohio. Wolters Kluwer Clinical Drug Information, Inc. https://online.lexi.com. Accessed 01/02/2023.

Buckingham R (ed). Sarilumab. Martindale: The Complete Drug Reference [online]. London. Pharmaceutical Press. https://www.medicinescomplete.com. Accessed 01/02/2023.

Joint Formulary Committee. Sarilumab. British National Formulary [online]. London. BMJ Group and Pharmaceutical Press. https://www.medicinescomplete.com. Accessed 01/02/2023.

Kevzara 150 mg Solution for Injection in Pre-filled Pen (Aventis Pharma Ltd, Trading as Sanofi Genzyme). MHRA. https://products.mhra.gov.uk. Accessed 01/02/2023.

Kevzara 200 mg Solution for Injection in Pre-filled Syringe (Aventis Pharma Ltd, Trading as Sanofi Genzyme). MHRA. https://products.mhra.gov.uk. Accessed 01/02/2023.

Kevzara Injection, Solution (Sanofi-Aventis U.S. LLC). DailyMed. Source: U.S. National Library of Medicine. https://dailymed.nlm.nih.gov/dailymed. Accessed 01/02/2023.

Disclaimer: This information is independently developed by MIMS based on Sarilumab from various references and is provided for your reference only. Therapeutic uses, prescribing information and product availability may vary between countries. Please refer to MIMS Product Monographs for specific and locally approved prescribing information. Although great effort has been made to ensure content accuracy, MIMS shall not be held responsible or liable for any claims or damages arising from the use or misuse of the information contained herein, its contents or omissions, or otherwise. Copyright © 2024 MIMS. All rights reserved. Powered by MIMS.com
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