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Bicalutamide oral

Presentation

Oral formulations of bicalutamide.

Drugs List

  • bicalutamide 150mg tablets
  • bicalutamide 50mg tablets
  • CASODEX 150mg tablets
  • CASODEX 50mg tablets
  • Therapeutic Indications

    Uses

    Advanced prostate cancer with LHRH analogue or surgical castration
    Locally advanced non metastatic prostate cancer(other treatment unsuitable)
    Locally advanced prostate cancer at high risk of disease progression

    Locally advanced prostate cancer in patients at a high risk of disease progress, either as monotherapy or an adjuvant treatment to radical prostatectomy or radiotherapy.

    Locally advanced, non-metastatic prostate cancer for whom surgical castration or other medical intervention is not considered appropriate or acceptable.

    Advanced prostate cancer in combination with luteinizing hormone-releasing hormone (LHRH) analogue therapy or surgical castration.

    Unlicensed Uses

    Metastatic prostate cancer: Retaining sexual function

    Retaining sexual function in patients with metastatic prostate cancer.

    Dosage

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

    Adults

    Advanced prostate cancer in combination with LHRH analogue or surgical castration
    50mg once a day.
    Treatment should be started at least 3 days before commencing treatment with LHRH analogue therapy or at the same time as surgical castration.

    Locally advanced prostate cancer as monotherapy or with prostatectomy or radiotherapy and for the management of locally advanced, non-metastatic prostate cancer
    150mg once a day.
    Treatment should continue for at least 2 years or until disease progression.

    Retaining sexual function in patients with metastatic prostate cancer (unlicensed)
    150mg once a day.

    Contraindications

    Children under 18 years
    Females
    Long QT syndrome
    Torsade de pointes

    Precautions and Warnings

    Family history of long QT syndrome
    Electrolyte imbalance
    Galactosaemia
    Glucose-galactose malabsorption syndrome
    History of torsade de pointes
    Lactose intolerance
    Moderate hepatic impairment

    Correct electrolyte disorders before treatment
    CSM (CHM) - not for treatment of localised prostate cancer
    Advise ability to drive/operate machinery may be affected by side effects
    Not all presentations are licensed for all indications
    Treatment to be initiated and supervised by a specialist
    Some formulations contain lactose
    Monitor ECG in patients at risk of QT prolongation
    Monitor hepatic function regularly
    Monitor prothrombin times closely in patients on anticoagulant therapy
    Monitor serum electrolytes
    Consider discontinuing therapy in disease progression + raised PSA
    Discontinue if severe hepatic changes occur
    Male: Contraception required during and for 5 months after treatment
    Partner: Contraception required during and for 5 months after treatment
    Advise patient to avoid exposure to sunlight and UV rays during treatment

    In males receiving LHRH agonists a reduction in glucose tolerance has been observed. This may present itself as diabetes or loss of glycaemic control in those with pre-existing diabetes. Consideration should be given to monitoring blood glucose in patients receiving bicalutamide in combination with LHRH agonists.

    Pregnancy and Lactation

    Pregnancy

    Bicalutamide is contraindicated in women.

    There are no data available on the use of bicalutamide during pregnancy, as bicalutamide is only indicated for use in men. Bicalutamide must not be given to pregnant women.

    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

    Bicalutamide is contraindicated in women.

    There are no data available on the use of bicalutamide during breastfeeding, as bicalutamide is only indicated for use in men. Bicalutamide must not be given to women during breastfeeding.

    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 pain
    Alopecia
    Anaemia
    Angina
    Angioneurotic oedema
    Anorexia
    Arrhythmias
    Asthenia
    Breast tenderness
    Cardiac failure
    Chest pain
    Cholestasis
    Constipation
    Decreased appetite
    Depression
    Diabetes mellitus
    Diarrhoea
    Dizziness
    Dry skin
    Dyspepsia
    ECG changes
    Erectile dysfunction
    Flatulence
    Gynaecomastia
    Haematuria
    Hair regrowth
    Headache
    Hepatic failure
    Hepatotoxicity
    Hirsutism
    Hot flushes
    Hyperglycaemia
    Hypersensitivity reactions
    Impotence
    Increase in serum transaminases
    Interstitial lung disease
    Jaundice
    Liver function disturbances
    Myocardial infarction
    Nausea
    Oedema
    Photosensitivity
    Prolongation of QT interval
    Pruritus
    Pulmonary fibrosis
    Rash
    Reduced libido
    Somnolence
    Thrombocytopenia
    Urticaria
    Weight gain

    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: April 2018

    Reference Sources

    Summary of Product Characteristics: Bicalutamide 50mg film coated tablets. Teva. Revised October 2015 .

    Summary of Product Characteristics: Bicalutamide 150mg film coated tablets. Teva. Revised October 2015.

    Summary of Product Characteristics: Casodex tablets 150mg. AstraZeneca. Revised February 2018 .

    Summary of Product Characteristics: Casodex tablets 50mg. AstraZeneca. Revised February 2018.

    MHRA 28th October 2003
    https://www.mhra.gov.uk/Safetyinformation/Safetywarningsalertsandrecalls/Safetywarningsandmessagesformedicines/CON2015691
    Last accessed: November 8, 2011

    NICE Evidence Services Available at: www.nice.org.uk Last accessed: 13 April 2018

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