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The most frequently reported adverse events (>10%) of cisplatin were haematological (leukopenia, thrombocytopenia and anaemia), gastrointestinal (anorexia, nausea, vomiting and diarrhoea), ear disorders (hearing impairment), renal disorders (renal failure, nephrotoxicity, hyperuricaemia) and fever.
Serious toxic effects on the kidneys, bone marrow and ears have been reported in up to about one third of patients given a single dose of cisplatin; the effects are generally dose-related and cumulative. Ototoxicity may be more severe in children.
Frequencies are defined using the following convention: very common (≥1/10); common (≥1/100 to <1/10); uncommon (≥1/1,000 to <1/100); rare (≥1/10,000 to ≤ 1/1,000); very rare (≤ 1/10,000), not known (cannot be estimated from the available data).
Table of Adverse Drug Events Reported During Clinical or Postmarketing Experience
(MedDRA terms)
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System Organ Class
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Frequency
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MedDRA term
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Infections and infestations
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Common
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Sepsis
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Not known
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Infectiona
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Blood and lymphatic system disorders
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Very common
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Bone marrow failure, thrombocytopenia, leukopenia, anaemia
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Not known
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Coombs positive haemolytic anaemia, thrombotic microangiopathy (haemolytic uraemic syndrome), neutropenia
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Neoplasms benign, malignant, and unspecified
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Rare
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Acute leukaemia
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Immune system disorders
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Uncommon
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Anaphylactoidb reaction
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Endocrine disorders
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Not known
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Blood amylase increased, inappropriate antidiuretic hormone secretion
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Metabolism and nutrition disorders
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Very common
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Hyponatraemia
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Uncommon
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Hypomagnesaemia
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Not known
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Dehydration, hypokalaemia, hypophosphataemia, hyperuricaemia, hypocalcaemia, tetany
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Nervous system disorders
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Rare
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Convulsion, neuropathy peripheral, leukoencephalopathy, reversible posterior leukoencephalopathy syndrome
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Not known
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Cerebrovascular accident, haemorrhagic stroke, ischaemic stroke, ageusia, cerebral arteritis, Lhermitte's sign, myelopathy, autonomic neuropathy
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Eye disorders
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Not known
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Vision blurred, colour blindness acquired, blindness cortical, optic neuritis, papilloedema, retinal pigmentation
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Ear and labyrinth disorders
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Uncommon
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Ototoxicity
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Not known
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Tinnitus, deafness
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Cardiac disorders
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Common
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Arrhythmia, bradycardia, tachycardia
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Rare
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Myocardial infarction
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Very rare
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Cardiac arrest
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Not known
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Cardiac disorder
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Vascular disorders
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Not known
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Raynaud's phenomenon
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Gastrointestinal disorders
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Rare
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Stomatitis
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Not known
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Vomiting, nausea, anorexia, hiccups, diarrhoea
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Hepatobiliary disorders
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Not known
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Hepatic enzymes increased, blood bilirubin increased
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Respiratory, thoracic and mediastinal disorders
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Not known
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Pulmonary embolism
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Skin and subcutaneous tissue disorders
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Not known
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Rash, alopecia
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Musculoskeletal, connective tissue and bone disorders
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Not known
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Muscle spasms
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Renal and urinary disorders
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Not known
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Renal failure acute, renal failurec , renal tubular disorder
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Reproductive system and breast disorders
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Uncommon
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Abnormal spermatogenesis
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General disorders and administration site condition
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Not known
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Pyrexia (very common), asthenia, malaise, injection site extravasationd
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a: Infectious complications have lead to death in some patients.
b: Symptoms include facial edema (PT–face oedema), flushing, wheezing, bronchospasm, tachycardia, and hypotension will be included in the parentheses for anaphylactoid reaction in the AE frequency table.
c: Elevations in BUN and creatinine, serum uric acid, and/or decrease in creatinine clearance are subsumed under renal insufficiency/failure.
d: Local soft tissue toxicity including cellulitis, fibrosis, and necrosis (common) pain (common), oedema (common) and erythema (common) as the result of extravasation.
Nephrotoxicity: Renal toxicity has been shown in 28-38% of patients treated with a single dose of cisplatin 50 mg/m2 . Renal toxicity becomes more prolonged and severe with repeated courses of the drug.
Gastrointestinal toxicity: Nausea and vomiting occur in the majority of patients, usually starting within 1 hour of treatment and lasting up to 24 hours. Anorexia, nausea and occasional vomiting may persist for up to a week.
Ocular Toxicity: There have been reports of optic neuritis, papilloedema and cerebral blindness following treatment with cisplatin. Improvement and/or total recovery usually occurs following immediate discontinuation. Blurred vision and altered colour perception have been reported after the use of regimens with higher doses of cisplatin or greater dose frequencies than those recommended.
Ototoxicity: Ototoxicity has occurred in up to 31% of patients treated with a single dose of cisplatin 50 mg/m2. Ototoxicity may be more severe in children and more frequent and severe with repeated doses. Careful monitoring should be performed prior to initiation of therapy and prior to subsequent doses of cisplatin.
Unilateral or bilateral tinnitus, which is usually reversible, and/or hearing loss in the high frequency range may occur.
The overall incidence of audiogram abnormalities is 24%, but large variations exist. These abnormalities usually appear within 4 days after drug administration and consist of at least a 15 decibel loss in pure tone threshold. The damage seems to be cumulative and is not reversible. The audiogram abnormalities are most common in the 4000-8000 Hz frequencies.
Haemotoxicity: Myelosuppression is observed in about 30% of patients treated with cisplatin. Leucopenia and thrombocytopenia are more pronounced at higher doses. The nadirs in circulating platelets and leucocytes generally occur between days 18-23 (range 7.3 to 45) with most patients recovering by day 39 (range 13 to 62). Leucopenia and thrombocytopenia are more pronounced at doses greater than 50 mg/m2. Anaemia (decreases of greater than 2 g% haemoglobin) occurs at approximately the same frequency, but generally with a later onset than leucopenia and thrombocytopenia. Subsequent courses of cisplatin should not be instituted until platelets are present at levels greater than 100,000/mm3 and white cells greater than 4,000/mm3. A high incidence of severe anaemia requiring transfusion of packed red cells has been observed in patients receiving combination chemotherapy including cisplatin.
Anaphylaxis: Reactions possibly secondary to cisplatin therapy have been occasionally reported in patients who were previously exposed to cisplatin. Patients who are particularly at risk are those with a prior history or family history of atopy. Facial oedema, wheezing, tachycardia, hypotension and skin rashes of urticarial non-specific maculopapular type can occur within a few minutes of administration. Serious reactions seem to be controlled by I.V. adrenaline, corticosteroids or antihistamines.
Neurotoxicity: Neurotoxicity may occur. It is cumulative and may be irreversible. It is generally characterised by neuropathies, but seizures and taste loss have occurred.
Peripheral neuorpathies with paresthesia in both upper and lower extremities, tremor and loss of taste have been observed in some patients, generally those treated with repeated courses.
Hypomagnesaemia and Hypocalcaemia: Hypomagnesaemia occurs quite frequently with cisplatin administration, while hypocalcaemia occurs less frequently. The loss of magnesium seems to be associated with renal tubular damage which prevents resorption of this cation. Where both electrolytes are deficient, tetany may result. It does not appear to be dose related. Monitoring of electrolytes is necessary.
Electrolyte Disturbances: Hyponatraemia, hypokalaemia and hypophosphataemia can occur.
Hyperuricaemia: Hyperuricaemia occurring with cisplatin is more pronounced with doses greater than 50 mg/m2. Allopurinol effectively reduces uric acid levels.
Cardiac and Vascular Disorders: Cardiac reactions including tachycardia and arrhythmia have been reported. Vascular toxicities coincident with the use of cisplatin in combination with other antineoplastic agents have been reported rarely. These events may include myocardial infarction, cerebrovascular accident, thrombotic microangiopathy (Haemolytic uraemic syndrome) or cerebral arteritis.
Other Toxicities: There are also reports of Raynaud's phenomenon occurring in patients treated with the combination of bleomycin, vinblastine and with or without cisplatin. It has been suggested that hypomagnesaemia developing with the use of cisplatin may be an added, although not essential factor, associated with this event. However the cause of this Raynaud's phenomenon is currently unknown.
Reporting of suspected adverse reactions
Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the national reporting system listed in HPRA Pharmacovigilance, Earlsfort Terrace , IRL - Dublin 2, Tel: +353 1 6764971, Fax: +353 1 6762517, Website: www.hpra.ie, e-mail: medsafety@hpra.ie
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