Adverse reactions : תופעות לוואי

4.8   Undesirable effects

Side effects in association with the use of gadoteric acid are usually mild to moderate in intensity and transient in nature. Injection site reactions, nausea and headache are the most frequently observed reactions.

During clinical trials uncommon adverse reactions (≥1/1000 to <1/100) were nausea, headache, injection site reactions, feeling cold, hypotension, somnolence, dizziness, feeling hot, burning sensation, rash, asthenia, dysgeusia and hypertension were the most frequent.

Post-marketing the most commonly reported adverse reactions following administration of gadoteric acid have been nausea, vomiting, pruritus and hypersensitivity reactions.

In hypersensitivity reactions, the reactions most frequently observed are skin reactions, which can be localised, extended or generalised.
These reactions occur most often immediately (during the injection or within one hour after the start of injection) or sometimes delayed (one hour to several days after injection), presenting as skin reactions in this case.

Immediate reactions include one or more effects, which appear simultaneously or sequentially, and are most often cutaneous, respiratory, gastrointestinal, joint and/or cardiovascular reactions.

Each sign maybe a warning sign of shock and may very rarely lead to death.

Isolated cases of nephrogenic systemic fibrosis (NSF) have been reported with gadoteric acid, most of which were in patients co-administered other gadolinium- containing contrast agents (see section 4.4).

The adverse reactions are listed in the table below by SOC (System Organ Class) and by frequency according to the following categories: very common (1/10), common (1/100 to 1<1/10), uncommon (1/1000 to 1<1/100), rare (1/10 000 to <1/1 000), very rare (<1/10 000), not known (cannot be estimated on the basis of available data).
The data presented are from clinical trials involving 2822 patients when available, or from a pool of observational studies involving 185,500 patients.

System Organ Class            Frequency: adverse reaction

Immune system                 Uncommon: hypersensitivity disorders                     Very rare: anaphylactic reaction, anaphylactoid reaction Psychiatric                   Rare: anxiety disorders                     Very rare: agitation
Nervous system                Uncommon: headache, dysgeusia, dizziness, drowsiness, paraesthesia disorders                     (including burning sensation)
Rare: presyncope
Very rare: coma, convulsion, syncope, tremor, parosmia
Eye disorders                 Rare: eyelid oedema
Very rare: conjunctivitis, ocular hyperaemia, blurred vision, excess tears
Cardiac disorders             Rare: palpitations
Very rare: tachycardia, cardiac arrest, arrhythmia, bradycardia
Vascular disorders            Uncommon: hypotension, hypertension,
Very rare: pallor, vasodilatation
Respiratory,                  Rare: sneezing thoracic         and          Very rare: cough, dyspnoea, nasal congestion, respiratory arrest, mediastinal                   bronchospasm, laryngospasm, pharyngeal oedema, dry throat, disorders                     pulmonary oedema
Gastrointestinal              Uncommon: nausea, abdominal pain disorders                     Rare: vomiting, diarrhoea, salivary hypersecretion Skin and subcutaneous         Uncommon: rash tissue disorders              Rare: urticaria, pruritushyperhidrosis
Very rare: erythema, angioedema, eczema
Not known: nephrogenic systemic fibrosis
Musculoskeletal and           Very rare: muscle cramps, muscular weakness, back pain connective tissue disorders
General disorders and         Uncommon: feeling hot, feeling cold, asthenia, injection site reactions administration site           (extravasation, pain, discomfort, oedema, inflammation, coldness) conditions                    Rare: chest pain, chills
Very rare: malaise, chest discomfort, pyrexia, face oedema,
injection site necrosis (in case of extravasation), phlebitis superficial Investigations                Very rare: decreased oxygen saturation


The following adverse reactions were reported with other intravenous contrast agents for MRI:

System Organ Class                          Adverse reaction
Blood and lymphatic system                  Haemolysis disorders
Psychiatric disorders                       Confusion
Eye disorders                               Blindness transient, eye pain Ear and labyrinth disorders                 Tinnitus, ear pain
Respiratory, thoracic and                   Asthma mediastinal disorders
Gastrointestinal disorders                  Dry mouth
Skin and subcutaneous tissue                Dermatitis bullous disorders
Renal and urinary disorders                 Urinary incontinence, renal tubular necrosis, acute renal failure
Investigations                              Electrocardiogram PR prolongation, blood iron increased, blood bilirubin increased, serum ferritin increased,
liver function test abnormal

Adverse reactions in Children
Safety of paediatric patients was considered in clinical trials and post-marketing studies.
As compared to adults, the safety profile of gadoteric acid did not show any specificity in children. The most common reactions are gastrointestinal symptoms or signs of hypersensitivity.

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. Any suspected adverse events should be reported to the Ministry of Health according to the National Regulation by using an online form https://sideeffects.health.gov.il