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Mifamurtide parenteral

Updated 2 Feb 2023 | Mifamurtide

Presentation

Mifamurtide powder for concentration for dispersion for infusion

Drugs List

  • MEPACT 4mg powder for suspension for infusion
  • mifamurtide 4mg powder for suspension for infusion
  • Therapeutic Indications

    Uses

    Non-metastatic osteosarcoma after complete surgical resection

    Treatment of patients with high-grade resectable non-metastatic osteosarcoma after macroscopically complete surgical resection. It is used in combination with post-operative multi-agent chemotherapy.

    Dosage

    Whilst the doses stated below are those recommended by the manufacturer, local cancer network protocols for the relevant indication should be consulted.

    Adults

    Adults aged more than 30 years
    Not recommended for these patients.

    Adults aged 30 years and below
    The recommended dose is 2 mg/metre squared body surface area administered twice weekly, at least 3 days apart, for 12 weeks. This is followed by once weekly treatments for an additional 24 weeks.
    This results in a total of 48 infusions in 36 weeks.

    Children

    Children aged 2 years and above
    The recommended dose is 2 mg/metre squared body surface area administered twice weekly, at least 3 days apart, for 12 weeks. This is followed by once weekly treatments for an additional 24 weeks.
    This results in a total of 48 infusions in 36 weeks.

    Children aged below 2 years
    Not recommended for these patients.

    Administration

    To be administered as an intravenous infusion over a period of 1 hour.

    Contraindications

    Children under 2 years
    Patients over 30 years
    Breastfeeding
    Pregnancy

    Precautions and Warnings

    Females of childbearing potential
    History of autoimmune disorder
    Inflammatory disorder
    Asthma
    Chronic obstructive pulmonary disease
    Collagen disorder
    History of venous thromboembolism
    Moderate hepatic impairment
    Neutropenia
    Severe renal impairment
    Unstable cardiac disorder
    Vasculitis

    Advise ability to drive/operate machinery may be affected by side effects
    Treatment to be initiated and supervised by a specialist
    If fever or chills persist for more than 8 hours consider possible sepsis
    Monitor clotting parameters after first dose & after several doses
    Monitor for signs and symptoms of allergic reaction
    Monitor for signs or symptoms of uncontrolled inflammatory reactions
    Monitor hepatic function
    Monitor renal function
    Suspend or discontinue therapy if cardiovascular symptoms increase
    Suspend treatment if patients experience worsening of respiratory symptoms
    Bronchodilator therapy may be used to reduce bronchospasm
    Advise patients to avoid aspirin and NSAID use
    Female: Ensure adequate contraception during treatment

    Pregnancy and Lactation

    Pregnancy

    Mifamurtide is contraindicated during pregnancy.

    The use of all medication in pregnancy should be avoided whenever possible; particularly in the first trimester. Non-drug treatments should also be considered. When essential, a medication with the best safety record over time should be chosen, employing the lowest effective dose for the shortest possible time. Polypharmacy should be avoided. Teratogens taken in the pre-embryonic period, often quoted as lasting until 14 to 17 days post-conception, are believed to have an all-or-nothing effect. Where drugs have a short half-life, and when the date of conception is certain, this may allow women to be reassured where drug exposure has occurred within this time frame. Further advice may be available from the UK National Teratology Information Service (NTIS) and through ToxBase, available via password on the internet ( www.toxbase.org ) or if this is unavailable at the backup site ( www.toxbasebackup.org ).

    Lactation

    Mifamurtide is contraindicated during breastfeeding.

    It is unknown whether mifamurtide is excreted in human breast milk. A decision should be made as to whether to discontinue either breastfeeding or mifamurtide treatment, taking into account the benefits of treatment for the patient and the benefits of breast feeding for the infant.

    Neonates, infants born prematurely, those with low birth weight, those with an unstable gastrointestinal function or who have serious illnesses may require special consideration. For any infant, if a drug is prescribed to the nursing mother, it should be at the lowest practical dose and for the shortest time. When drug administration is unavoidable and breastfeeding is to continue, minimisation of exposure of the infant to the drug may sometimes be achieved by timing the maternal doses to just after a feeding episode. Infants exposed to drugs via breast milk should be monitored for unusual signs or symptoms. Interactions between the drug received by the infant from the mother's milk and medication prescribed for the infant should also be considered, for example, when the drug given to the infant may prevent metabolism of the drug received via breast milk.
    Specialist advice is available from the UK Drugs in Lactation Advisory Service at https://www.midlandsmedicines.nhs.uk/content.asp?section=6&subsection=17&pageIdx=1

    Side Effects

    Abdominal distension
    Allergic reaction
    Alopecia
    Anaemia
    Anorexia
    Anxiety
    Arthralgia
    Asthenia
    Blurred vision
    Catheter related infection
    Cellulitis
    Chills
    Confusion
    Cough
    Cyanosis
    Decreased appetite
    Dehydration
    Depression
    Dizziness
    Drowsiness
    Dry skin
    Dysmenorrhoea
    Dyspnoea
    Dysuria
    Epistaxis
    Erythema
    Fatigue
    Febrile neutropenia
    Fever
    Flushing
    Gastro-intestinal disturbances
    Granulocytopenia
    Haematuria
    Haemoptysis
    Headache
    Hearing loss
    Herpes simplex
    Hyperhidrosis
    Hypertension
    Hypoaesthesia
    Hypokalaemia
    Hypotension
    Hypothermia
    Inflammatory reactions
    Injection site reactions
    Insomnia
    Lethargy
    Leukopenia
    Malaise
    Mucosal inflammation
    Muscle spasm
    Myalgia
    Naso-sinus congestion
    Nasopharyngitis
    Nausea
    Oedema
    Pain
    Pallor
    Palpitations
    Paraesthesia
    Pericarditis
    Peripheral oedema
    Pharyngitis
    Phlebitis
    Pleural effusion
    Pleuritis
    Pollakiuria
    Post-operative pain
    Pruritus
    Rash
    Sensation of cold
    Sepsis
    Somnolence
    Stiffness
    Tachycardia
    Tachypnoea
    Thrombocytopenia
    Tinnitus
    Tremor
    Upper respiratory tract infection
    Urinary tract infections
    Vertigo
    Vomiting
    Weight loss
    Wheezing

    Overdosage

    It is strongly recommended that the UK National Poisons Information Service be consulted on cases of suspected or actual overdose where there is doubt over the degree of risk or about appropriate management.

    The following number will direct the caller to the relevant local centre (0844) 892 0111

    Information may be obtained if you have access to ToxBase the primary clinical toxicology database of the National Poisons Information Service. This is available via password on the internet ( www.toxbase.org ) or if this is unavailable at the backup site ( www.toxbasebackup.org ).

    Further Information

    Last Full Review Date: October 2016

    Reference Sources

    Joint Formulary Committee. British National Formulary (online) London: BMJ Group and Pharmaceutical Press. Accessed on 27 September 2016.

    Paediatric Formulary Committee. BNF for Children (online) London: BMJ Group, Pharmaceutical Press, and RCPCH Publications. Accessed on 27 September 2016.

    Summary of Product Characteristics: Mepact 4 mg powder for suspension for infusion. Takeda UK Ltd. Revised December 2013.

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    Medscape UK | Univadis prescription drug monographs & interactions are based on FDB Multilex Content

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