The frequency of adverse reactions reported is based on a cumulative database of 1,893 patients receiving single agent carboplatin injection and post-marketing experience.
The list is presented by system organ class, MedDRA preferred term, and frequency using the following frequency categories: very common (≥1/10), common (≥1/100, < 1/10), uncommon, (≥1/1,000, <1/100), rare (≥1/10,000, <1/1,000), very rare (< 1/10,000), and not known (cannot be estimated from the available data).
| System Organ Class | Frequency | MedDRA Term |
| Neoplasms, benign and malignant and unspecified (incl cysts and polyps) | Not known | Treatment related secondary malignancy |
| Infections and infestations | Common | Infections* |
| Not known | Pneumonia |
| Blood and lymphatic system disorders | Very common | Thrombocytopenia, neutropenia, leukopenia, anaemia |
| Common | Haemorrhage* |
| Not known | Bone marrow failure, febrile neutropenia, haemolytic-uraemic syndrome (HUS), haemolytic anaemia (sometimes fatal) |
| Immune system disorders | Common | Hypersensitivity, anaphylactoid type reaction |
| Metabolism and nutrition disorders | Not known | Dehydration, anorexia, hyponatraemia, Tumour lysis syndrome |
| Nervous system disorders | Common | Neuropathy peripheral, paraesthesia, decrease of osteotendinous reflexes, sensory disturbance, dysgeusia |
| Not known | Cerebrovascular accident*, encephalopathy, Reversible Posterior Leukoencephalopathy Syndrome (RPLS) |
| Eye disorders | Common | Visual disturbance (incl. rare cases of loss of vision) |
| Ear and labyrinth disorders | Common | Ototoxicity |
| Cardiac disorders | Common | Cardiovascular disorder* |
| Not known | Cardiac failure*, Kounis syndrome |
| Vascular disorders | Not known | Embolism*, hypertension, hypotension,venoocclusive disease (fatal) |
| Respiratory, thoracic and mediastinal disorders | Common | Respiratory disorder, interstitial lung disease, bronchospasm |
| Gastrointestinal disorders | Very common | Vomiting, nausea, abdominal pain |
| Common | Diarrhoea, constipation, mucous membrane disorder |
| Not known | Stomatitis, pancreatitis |
| Skin and subcutaneous tissue disorders | Common | Alopecia, skin disorder |
| Not known | Urticaria, rash, erythema, pruritus |
| Musculoskeletal and connective tissue disorders | Common | Musculoskeletal disorder |
| Renal and urinary disorders | Common | Urogenital disorder |
| General disorders and administration site conditions | Common | Asthenia |
| Not known | Injection site necrosis, injection site reaction, injection site extravasation, injection site erythema, malaise |
| Investigations | Very Common | Creatinine renal clearance decreased, blood urea increased, blood alkaline phosphatase increased, aspartate aminotransferase increased, liver function test abnormal, blood sodium decreased, blood potassium decreased, blood calcium decreased, blood magnesium decreased. |
| | Common | Blood bilirubin increased, blood creatinine increased, blood uric acid increased |
* Fatal in <1%, fatal cardiovascular events in <1% included cardiac failure, embolism, and cerebrovascular accident combined.
Blood and lymphatic system disorders:
Myelosuppression is the dose-limiting toxicity of carboplatin injection. In patients with normal baseline values, thrombocytopenia with platelet counts below 50,000/mm3 occurs in 25% of patients, neutropenia with granulocyte counts below 1,000/mm3 in 18% of patients, and leukopenia with WBC counts below 2,000/mm3 in 14% of patients. The nadir usually occurs on day 21. Myelosuppression can be worsened by combination of carboplatin injection with other myelosuppressive compounds or forms of treatment.
Myelotoxicity is more severe in previously treated patients, in particular in patients previously treated with cisplatin and in patients with impaired kidney function. Patients with poor performance status have also experienced increased leukopenia and thrombocytopenia. These effects, although usually reversible, have resulted in infectious and hemorrhagic complications in 4% and 5% of patients given carboplatin injection, respectively. These complications have led to death in less than 1% of patients.
Anaemia with haemoglobin values below 8 g/dL has been observed in 15% of patients with normal baseline values. The incidence of anaemia is increased with increasing exposure to carboplatin injection.
Neoplasms, benign, malignant and unspecified (including cysts and polyps):
Secondary acute malignancies after cytostatic combination therapies containing carboplatin have been reported.
Respiratory, thoracic and mediastinal disorders:
Pulmonary fibrosis has been reported very rarely, manifested by tightness of the chest and dyspnoea. This should be considered if a pulmonary hypersensitivity state is excluded (see General disorders below).
Gastrointestinal disorders:
Vomiting occurs in 65% of patients, in one-third of whom it is severe. Nausea occurs in an additional 15%. Previously treated patients (in particular patients previously treated with cisplatin) appear to be more prone to vomiting. Nausea and vomiting are generally delayed until 6 to 12 hours after administration of carboplatin, are readily controlled or prevented with antiemetics and disappear within 24 hours. Vomiting is more likely when carboplatin injection is given in combination with other emetogenic compounds.
The other gastrointestinal complaints corresponded to pain in 8% of patients, diarrhoea, and constipation in 6 % of patients. Cramps have also been reported.
Nervous system disorders:
Peripheral neuropathy (mainly paresthesias and decrease of osteotendinous reflexes) has occurred in 4% of patients administered carboplatin injection. Patients older than 65 years and patients previously treated with cisplatin, as well as those receiving prolonged treatment with carboplatin injection, appear to be at increased risk.
Clinically significant-sensory disturbances (ie, visual disturbances and taste modifications) have occurred in 1% of patients.
The overall frequency of neurologic side effects seems to be increased in patients receiving carboplatin injection in combination. This may also be related to longer cumulative exposure. Parasthesias present prior to treatment, especially if caused by cisplatin, may persist or worsen during carboplatin therapy (see section 4.4).
Eye disorders:
Visual disturbances, including sight loss, are usually associated with high dose therapy in renally impaired patients.
Ear and labyrinth disorders:
A subclinical decrease in hearing acuity in the high frequency range (4000-8000 Hz), determined by audiogram, occurred in 15% of patients. Very rare cases of hypoacusia have been reported.
Tinnitus was also commonly reported. Hearing loss as a result of cisplatin therapy may give rise to persistent or worsening symptoms. At higher than recommended doses, in common with other ototoxic agents, clinically significant hearing loss has been reported to occur in paediatric patients when carboplatin is administered.
Hepatobiliary disorders:
Modification of liver function in patients with normal baseline values was observed, including elevation of total bilirubin in 5%, SGOT in 15%, and alkaline phosphatase in 24% of patients. These modifications were generally mild and reversible in about one-half the patients.
In a limited series of patients receiving very high dosages of carboplatin injection and autologous bone marrow transplantation, severe elevation of liver function tests has occurred.
Cases of an acute, fulminant liver cell necrosis occurred after high-dose administration of carboplatin.
Renal and urinary disorders:
When given in usual doses, development of abnormal renal function has been uncommon, despite the fact that carboplatin injection has been administered without high-volume fluid hydration and/or forced diuresis. Elevation of serum creatinine occurs in 6% of patients, elevation of blood urea nitrogen in 14%, and of uric acid in 5% of patients. These are usually mild and are reversible in about one-half the patients. Creatinine clearance has proven to be the most sensitive renal function measure in patients receiving carboplatin injection. Twenty-seven percent (27%) of patients who have a baseline value of 60 mL/min or greater, experience a reduction in creatinine clearance during carboplatin injection therapy. Impairment of renal function is more likely in patients who have previously experienced nephrotoxicity as a result of cisplatin therapy.
Immune system disorders:
Anaphylactic-type reactions, sometimes fatal, may occur in the minutes following injection of the product: facial oedema, dyspnoea, tachycardia, low blood pressure, urticaria, anaphylactic shock, bronchospasm.
Fever with no apparent cause has also been reported.
Skin and subcutaneous tissue disorders:
Erythematous rash, fever and pruritis have been observed. These were reactions similar to those seen after cisplatin therapy but in a few cases no cross-reactivity was present.
Investigations:
Decreases in serum sodium, potassium, calcium, and magnesium occur in 29%, 20%, 22%, and 29% of patients, respectively. In particular, cases of early hyponatraemia have been reported. The electrolyte losses are minor and mostly take a course without any clinical symptoms.
Cardiac disorders:
Isolated cases of cardiovascular incidents (cardiac insufficiency, embolism) as well as isolated cases of cerebrovascular accidents have been reported.
General disorders and administration site conditions:
Reactions at the site of injection (burning, pain, reddening, swelling, urticaria, necrosis in connection with extravasation) have been reported.
Fever, chills and mucositis have occasionally been observed.
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 Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.