This information is intended for use by health professionals

1. Name of the medicinal product

SPORANOX 10 mg/mL Oral Solution.

2. Qualitative and quantitative composition

1 mL SPORANOX Oral Solution contains 10 mg itraconazole.

Excipients with known effect

Each mL of SPORANOX Oral Solution contains:

400 mg hydroxypropyl-β (cyclodextrin);

198 mg sorbitol;

104 mg propylene glycol;

0.005 mg ethanol.

For the full list of excipients, see section 6.1.

3. Pharmaceutical form

Oral solution.

SPORANOX Oral Solution is clear, yellow to slightly amber solution with an odour of cherry.

4. Clinical particulars
4.1 Therapeutic indications

SPORANOX Oral Solution is indicated:

- for the treatment of oral and/or oesophageal candidosis in HIV-positive or other immunocompromised patients.

- as prophylaxis of deep fungal infections anticipated to be susceptible to itraconazole, when standard therapy is considered inappropriate, in patients with haematological malignancy or undergoing bone marrow transplant, and who are expected to become neutropenic (i.e. < 500 cells/µL). At present, there are insufficient clinical efficacy data in the prevention of aspergillosis.

Consideration should be given to national and/or local guidance regarding the appropriate use of antifungal agents.

4.2 Posology and method of administration

For optimal absorption, SPORANOX Oral Solution should be taken without food (patients are advised to refrain from eating for at least 1 hour after intake).

For the treatment of oral and/or oesophageal candidosis, the liquid should be swished around the oral cavity (approx. 20 seconds) and swallowed. There should be no rinsing after swallowing.

- Treatment of oral and/or oesophageal candidosis: 200 mg (2 measuring cups) per day in two intakes, or alternatively in one intake, for 1 week. If there is no response after 1 week, treatment should be continued for another week.

- Treatment of fluconazole resistant oral and/or oesophageal candidosis: 100 to 200 mg (1-2 measuring cups) twice daily for 2 weeks. If there is no response after 2 weeks, treatment should be continued for another 2 weeks. The 400 mg daily dose should not be used for longer than 14 days if there are no signs of improvement.

- Prophylaxis of fungal infections: 5 mg/kg per day administered in two intakes. In clinical trials, prophylaxis treatment was started immediately prior to the cytostatic treatment and generally one week before transplant procedure. Almost all proven deep fungal infections occurred in patients reaching neutrophil counts below 100 cells/µL. Treatment was continued until recovery of neutrophils (i.e. > 1 000 cells/µL).

Pharmacokinetic parameters from clinical studies in neutropenic patients demonstrate considerable intersubject variation. Blood level monitoring should be considered particularly in the presence of gastrointestinal damage, diarrhoea and during prolonged courses of SPORANOX Oral Solution.

Use in patients with gastro-intestinal motility impairment

When treating patients with severe fungal infections or when administering it as fungal prophylaxis to those with abnormal gastro-intestinal motility, patients should be carefully monitored and where appropriate drug therapeutic monitoring should be considered, where available.

Paediatric population

The safety and efficacy of SPORANOX Oral Solution in children has not been established. Currently available data are described in section 4.4 and 5.2 but no recommendation on a posology can be made.

The use of SPORANOX Oral Solution in paediatric patients is not recommended unless it is determined that the potential benefit outweighs the potential risks (see section 4.4).

Prophylaxis of fungal infections: there are no efficacy data available in neutropenic children. Limited safety experience is available with a dose of 5 mg/kg per day administered in two intakes. (see section 4.8).

Use in elderly

Since clinical data on the use of SPORANOX Oral Solution in elderly patients are limited, it is advised to use SPORANOX Oral Solution in these patients only if it is determined that the potential benefit outweighs the potential risks. In general, it is recommended that the dose selection for an elderly patient should be taken into consideration, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy (see section 4.4).

Use in patients with hepatic impairment

Limited data are available on the use of oral itraconazole in patients with hepatic impairment. Caution should be exercised when this drug is administered in this patient population. (see section 5.2)

Use in patients with renal impairment

Limited data are available on the use of oral itraconazole in patients with renal impairment. The exposure of itraconazole may be lower in some patients with renal insufficiency and a wide inter-subject variation was observed in these subjects receiving the capsule formulation (see section 5.2). Caution should be exercised when this drug is administered in this patient population and adjusting the dose or switching to an alternative antifungal medication may be considered based on an evaluation of clinical effectiveness.

Method of administration

Precautions to be taken before handling or administering the medicinal product

For instructions on handling of the medicinal product before administration, see section 6.6.

4.3 Contraindications

• SPORANOX Oral Solution is contraindicated in patients with a known hypersensitivity to itraconazole or to any of the excipients.

• SPORANOX Oral Solution should not be administered to patients with evidence of ventricular dysfunction such as congestive heart failure (CHF) or a history of CHF except for the treatment of life-threatening or other serious infections. see 4.4 Special warnings and precautions for use.

• SPORANOX Oral Solution must not be used during pregnancy for non-life-threatening indications (see section 4.6).

• Co-administration of a number of CYP3A4 substrates is contraindicated with SPORANOX Oral Solution (see sections 4.4 and 4.5). These include:

Analgesics; Anaesthetics

Ergot alkaloids

(e.g. dihydroergotamine, ergometrine, ergotamine, methylergometrine)

Anti-bacterials for Systemic Use; Anti-mycobacterials; Antimycotics for Systemic Use

Isavuconazole

Anthelmintics; Antiprotozoals

Halofantrine

Antihistamines for Systemic Use

Astemizole

Mizolastine

Terfenadine

Antineoplastic Agents

Irinotecan

Antithrombotic Agents

Dabigatran

Ticagrelor

Antivirals for Systemic Use

Ombitasvir/Paritaprevir/Ritonavir (with or without Dasabuvir)

Cardiovascular System (Agents Acting on the Renin-Angiotensin System; Antihypertensives; Beta Blocking Agents; Calcium Channel Blockers; Cardiac Therapy; Diuretics)

Aliskiren

Dronedarone

Nisoldipine

Bepridil

Eplerenone

Quinidine

Disopyramide

Ivabradine

Ranolazine

Dofetilide

Lercanidipine

Sildenafil (pulmonary hypertension)

Gastrointestinal Drugs, including Antidiarrheals, Intestinal Anti-inflammatory/Anti-infective Agents; Antiemetics and Antinauseants; Drugs for Constipation; Drugs for Functional Gastrointestinal Disorders

Cisapride

Domperidone

Naloxegol

Lipid Modifying Agents

Lovastatin

Lomitapide

Simvastatin

Psychoanaleptics; Psycholeptics (eg, antipsychotics, anxiolytics, and hypnotics)

Lurasidone

Pimozide

Sertindole

Midazolam (oral)

Quetiapine

Triazolam

Urologicals

Avanafil

Darifenacin

Solifenacin (in patients with severe renal impairment or moderate to severe hepatic impairment)

Dapoxetine

Fesoterodine (in patients with moderate or severe renal or hepatic impairment).

Vardenafil (in patients older than 75 years).

Miscellaneous Drugs and Other Substances

Colchicine (in patients with renal or hepatic impairment)

Eliglustat (in patients that are CYP2D6 poor metabolisers (PM), CYP2D6 intermediate metabolisers (IMs) or extensive metabolisers (EMs) that are taking a strong or moderate CYP2D6 inhibitor).

4.4 Special warnings and precautions for use

Use in patients with gastro-intestinal motility impairment

When treating patients with severe fungal infections or when administering it as fungal prophylaxis to those with abnormal gastro-intestinal motility, patients should be carefully monitored and where appropriate drug therapeutic monitoring should be considered, where available.

Cross-hypersensitivity

There is no information regarding cross hypersensitivity between itraconazole and other azole antifungal agents. Caution should be used in prescribing SPORANOX Oral Solution to patients with hypersensitivity to other azoles.

Cardiac effects

In a healthy volunteer study with SPORANOX IV, a transient asymptomatic decrease of the left ventricular ejection fraction was observed.

Itraconazole has been shown to have a negative inotropic effect and SPORANOX has been associated with reports of congestive heart failure. Heart failure was more frequently reported among spontaneous reports of 400 mg total daily dose than among those of lower total daily doses, suggesting that the risk of heart failure might increase with the total daily dose of itraconazole.

SPORANOX should not be used in patients with congestive heart failure or with a history of congestive heart failure unless the benefit clearly outweighs the risk. This individual benefit/risk assessment should take into consideration factors such as the severity of the indication, the dose and duration of treatment, and individual risk factors for congestive heart failure. Such patients should be informed of the signs and symptoms of congestive heart failure, should be treated with caution, and should be monitored for signs and symptoms of congestive heart failure during treatment; if such signs or symptoms do occur during treatment, SPORANOX should be discontinued.

Caution should be exercised when co-administering itraconazole and calcium channel blockers (see section 4.5).

Hepatic effects

Very rare cases of serious hepatotoxicity, including some cases of fatal acute liver failure, have occurred with the use of SPORANOX. Some of these cases involved patients with no pre-existing liver disease. Some of these cases have been observed within the first month of treatment, including some within the first week. Liver function monitoring should be considered in patients receiving SPORANOX treatment. Patients should be instructed to promptly report to their physician signs and symptoms suggestive of hepatitis such as anorexia, nausea, vomiting, fatigue, abdominal pain or dark urine. In these patients treatment should be stopped immediately and liver function testing should be conducted. Most cases of serious hepatotoxicity involved patients who had pre-existing liver disease, were treated for systemic indications, had significant other medical conditions and/or were taking other hepatotoxic drugs.

Paediatric population

Clinical data on the use of SPORANOX Oral Solution in paediatric patients are limited. The use of SPORANOX Oral Solution in paediatric patients is not recommended unless it is determined that the potential benefit outweighs the potential risks.

Use in elderly

Since clinical data on the use of SPORANOX Oral Solution in elderly patients is limited, it is advised to use SPORANOX Oral Solution in these patients only if the potential benefit outweighs the potential risks. In general, it is recommended that the dose selection for an elderly patient should be taken into consideration, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy (see section 4.4).

Hepatic impairment

Limited data are available on the use of oral itraconazole in patients with hepatic impairment. Caution should be exercised when the drug is administered in this patient population. It is recommended that patients with impaired hepatic function be carefully monitored when taking itraconazole. It is recommended that the prolonged elimination half-life of itraconazole observed in the single oral dose clinical trial with itraconazole capsules in cirrhotic patients be considered when deciding to initiate therapy with other medications metabolised by CYP3A4.

In patients with elevated or abnormal liver enzymes or active liver disease, or who have experienced liver toxicity with other drugs, treatment with SPORANOX is strongly discouraged unless there is a serious or life-threatening situation where the expected benefit exceeds the risk. It is recommended that liver function monitoring be done in patients with pre-existing hepatic function abnormalities or those who have experienced liver toxicity with other medications (see section 5.2).

Renal impairment

Limited data are available on the use of oral itraconazole in patients with renal impairment. The exposure of itraconazole may be lower in some patients with renal insufficiency and a wide inter-subject variation was observed in these subjects receiving the capsule formulation (see section 5.2). Caution should be exercised when this drug is administered in this patient population and adjusting the dose or switching to an alternative antifungal medication may be considered based on an evaluation of clinical effectiveness.

Prophylaxis in neutropenic patients

In clinical trials diarrhoea was the most frequent adverse event. This disturbance of the gastrointestinal tract may result in impaired absorption and may alter the microbiological flora potentially favouring fungal colonisation. Consideration should be given to discontinuing SPORANOX Oral Solution in these circumstances.

Treatment of severely neutropenic patients

SPORANOX Oral Solution as treatment for oral and/or oesophageal candidosis was not investigated in severely neutropenic patients. Due to the pharmacokinetic properties (see section 5.2), SPORANOX Oral Solution is not recommended for initiation of treatment in patients at immediate risk of systemic candidosis.

Hearing Loss

Transient or permanent hearing loss has been reported in patients receiving treatment with itraconazole. Several of these reports included concurrent administration of quinidine which is contraindicated (see sections 4.3 and 4.5). The hearing loss usually resolves when treatment is stopped, but can persist in some patients.

Cystic fibrosis

In cystic fibrosis patients, variability in plasma levels of itraconazole leading to subtherapeutic concentrations has been observed. The risk for subtherapeutic concentrations may be higher in < 16 year olds. If a patient does not respond to SPORANOX oral solution, consideration should be given to switching to SPORANOX IV or to alternative therapy.

Neuropathy

If neuropathy occurs that may be attributable to SPORANOX Oral Solution, the treatment should be discontinued.

Cross-resistance

In systemic candidosis, if fluconazole-resistant strains of Candida species are suspected, it cannot be assumed that these are sensitive to itraconazole, hence their sensitivity should be tested before the start of itraconazole therapy.

Interaction potential

Co-administration of specific drugs with itraconazole may result in changes in efficacy or safety of itraconazole and/or the co-administered drug. For example, the use of itraconazole with CYP3A4 inducing agents may lead to sub-therapeutic plasma concentrations of itraconazole and thus treatment failure. In addition, the use of itraconazole with some substrates of CYP3A4 can lead to increases in plasma concentrations of these drugs and to serious and/or potentially life threatening adverse events, such as QT prolongation and ventricular tachyarrhythmias including occurrences of torsade de pointes, a potentially fatal arrhythmia. The prescriber should refer to the co-administered medicinal product information for further information regarding serious or life threatening adverse events that could occur in cases of increased plasma concentrations for that medication. For recommendations concerning the co-administration of medicinal products which are contraindicated, not recommended or recommended for use with caution in combination with itraconazole please refer to sections 4.3 and 4.5.

Interchangeability

It is not recommended that SPORANOX Capsules and SPORANOX Oral Solution be used interchangeably. This is because drug exposure is greater with the Oral Solution than with the Capsules when the same dose of drug is given.

Excipients of SPORANOX Oral Solution

SPORANOX Oral Solution contains 7 920 mg sorbitol in each 40 mL dose which is equivalent to 198 mg/mL. The additive effect of concomitantly administered products containing sorbitol (or fructose) and dietary intake of sorbitol (or fructose) should be considered. The content of sorbitol in medicinal products for oral use may affect the bioavailability of other medicinal products for oral use administered concomitantly. Patients with hereditary fructose intolerance (HFI) should not take this medicinal product. Sorbitol may cause gastrointestinal discomfort and mild laxative effect.

SPORANOX Oral Solution contains less than 1 mmol sodium (23 mg) per 40 mL dose, that is to say essentially 'sodium-free'.

SPORANOX Oral Solution contains 0.2 mg of alcohol (ethanol) in each 40 mL dose which is equivalent to 0.005 mg/mL. The amount in 40 mL of this medicine is equivalent to less than 1 mL beer or 1 mL wine. The small amount of alcohol in this medicine will not have any noticeable effects.

SPORANOX Oral Solution contains 16 000 mg cyclodextrin(s) in each 40 mL dose which is equivalent to 400 mg/mL. Cyclodextrins may cause digestive problems such as diarrhoea. There is insufficient information on the effects of cyclodextrin in children <2 years old. Therefore, a case by case judgement should be made regarding the risk/benefit for the patient with SPORANOX Oral Solution (see section 4.2).

SPORANOX Oral Solution contains 4.2 g propylene glycol in each 40 mL dose which is equivalent to 104 mg/mL and must not be used during pregnancy except for life-threatening cases where the potential benefit to the mother outweighs the potential harm to the foetus (see section 4.3). SPORANOX Oral Solution must not be used during lactation (see section 4.6). Co-administration with any substrate for alcohol dehydrogenase such as ethanol may induce adverse effects in children less than 5 years old. Monitoring is required in patients with hepatic or renal impairment because adverse events attributed to propylene glycol have been reported, such as renal dysfunction (acute tubular necrosis), acute renal failure and liver dysfunction.

4.5 Interaction with other medicinal products and other forms of interaction

Itraconazole is mainly metabolised through CYP3A4. Other substances that either share this metabolic pathway or modify CYP3A4 activity may influence the pharmacokinetics of itraconazole. Itraconazole is a strong CYP3A4 inhibitor and, a P-glycoprotein inhibitor and Breast Cancer Resistance Protein (BCRP) inhibitor.

Itraconazole may modify the pharmacokinetics of other substances that share this metabolic or these protein transporter pathways.

Examples of drugs that may impact on the plasma concentration of itraconazole are presented by drug class in Table 1 below. Examples of drugs that may have their plasma concentrations impacted by itraconazole are presented in Table 2 below. Due to the number of interactions, the potential changes in safety or efficacy of the interacting drugs are not included. Please refer to the prescribing information of the interacting drug for more information.

The interactions described in these tables are categorised as contraindicated, not recommended or to be used with caution with itraconazole taking into account the extent of the concentration increase and the safety profile of the interacting drug (see also sections 4.3 and 4.4 for further information). The interaction potential of the listed drugs was evaluated based on human pharmacokinetic studies with itraconazole, and/or human pharmacokinetic studies with other strong CYP3A4 inhibitors (e.g. ketoconazole) and/or in vitro data:

• 'Contraindicated': Under no circumstances is the drug to be co-administered with itraconazole, and up to two weeks after discontinuation of treatment with itraconazole.

• 'Not recommended': The use of the drug be avoided during and up to two weeks after discontinuation of treatment with itraconazole, unless the benefits outweigh the potentially increased risks of side effects. If co-administration cannot be avoided, clinical monitoring for signs or symptoms of increased or prolonged effects or side effects of the concomitantly administered drug is recommended, and its dosage be reduced or interrupted as deemed necessary. When appropriate, it is recommended that plasma concentrations of the co-administered drug be measured.

• 'Use with caution': Careful monitoring is recommended when the drug is co-administered with itraconazole. Upon co-administration, it is recommended that patients be monitored closely for signs or symptoms of increased or prolonged effects or side effects of the interacting drug, and its dosage be reduced as deemed necessary. When appropriate, it is recommended that plasma concentrations of the co-administered drug be measured.

The interactions listed in these tables have been characterised in studies that were performed with recommended doses of itraconazole. However, the extent of interaction may be dependent on the dose of itraconazole administered. A stronger interaction may occur at a higher dose or with a shorter dosing interval. Extrapolation of the findings with other dosing scenarios or different drugs should be done with caution.

Once treatment is stopped, itraconazole plasma concentrations decrease to an almost undetectable concentration within 7 to 14 days, depending on the dose and duration of treatment. In patients with hepatic cirrhosis or in subjects receiving CYP3A4 inhibitors, the decline in plasma concentrations may be even more gradual. This is particularly important when initiating therapy with drugs whose metabolism is affected by itraconazole. (see section 5.2)

Table 1: Examples of drugs that may impact the plasma concentration of itraconazole, presented by drug class

Medicinal products Per Orale [PO] Single Dose unless otherwise stated) within class

Expected/Potential effect on itraconazole levels

(↑ = increase; ↔ = no change; ↓ = decrease)

Clinical comment

(see above for additional info and also sections 4.3 and 4.4)

Anti-bacterials for Systemic Use; Anti-mycobacterials

Isoniazid

Although not studied directly, isoniazid is likely to decrease the concentrations of itraconazole.

Not recommended

Rifampicin PO 600 mg OD

Itraconazole AUC ↓

Not recommended

Rifabutin PO 300 mg OD

Itraconazole Cmax ↓ 71%, AUC ↓ 74%

Not recommended

Ciprofloxacin PO 500 mg BID

Itraconazole Cmax ↑ 53%, AUC ↑ 82%

Use with caution

Erythromycin 1 g

Itraconazole Cmax ↑ 44%, AUC ↑ 36%

Use with caution

Clarithromycin PO 500 mg BID

Itraconazole Cmax ↑ 90%, AUC ↑ 92%

Use with caution

Antiepileptics

Carbamazepine, Phenobarbital

Although not studied directly, these drugs are likely to decrease concentrations of itraconazole.

Not recommended

Phenytoin PO 300 mg OD

Itraconazole Cmax ↓ 83%, AUC ↓ 93%

Hydroxyitraconazole Cmax ↓ 84%, AUC ↓ 95%

Not recommended

Antineoplastics Agents

Idelalisib

Although not studied directly, idelalisib is likely to increase the concentrations of itraconazole.

Use with caution

Antivirals for Systemic Use

Ombitasvir/Paritaprevir/Ritonavir (with or without Dasabuvir)

Although not studied directly, these drugs are expected to increase the concentrations of itraconazole.

Contraindicated

Efavirenz 600 mg

Itraconazole Cmax ↓ 37%, AUC ↓ 39%; Hydroxyitraconazole Cmax ↓ 35%, AUC ↓ 37%

Not recommended

Nevirapine PO 200 mg OD

Itraconazole Cmax ↓ 38%, AUC ↓ 62%

Not recommended

Cobicistat, Darunavir (boosted), Elvitegravir (ritonavir-boosted), Fosamprenavir (ritonavir-boosted), Ritonavir, Saquinavir (ritonavir-boosted)

Although not studied directly, these drugs are expected to increase the concentrations of itraconazole.

Use with caution

Indinavir PO 800 mg TID

Itraconazole concentration ↑

Use with caution

Calcium Channel Blockers

Diltiazem

Although not studied directly, diltiazem is likely to increase the concentration of itraconazole.

Use with caution

Drugs for Acid Related Disorders

Antacids (aluminium, calcium, magnesium, or sodium bicarbonate), H2-receptor antagonists (eg, cimetidine, ranitidine), Proton pump inhibitors (eg, lansoprazole, omeprazole, rabeprazole)

Itraconazole Cmax ↓, AUC ↓

Use with caution

Respiratory System: Other Respiratory System Products

Lumacaftor/Ivacaftor PO 200/250 mg BID

Itraconazole concentration ↓

Not recommended

Miscellaneous

St. John's Wort

(Hypericum perforatum)

Although not studied directly, St. John's Wort is likely to decrease the concentration of itraconazole.

Not recommended

Table 2 Examples of drugs that may have their plasma concentrations impacted by itraconazole, presented by drug class

Medicinal products (PO Single Dose unless otherwise stated) within class

Expected/Potential effect on drug levels

(↑ = increase; ↔ = no change; ↓ = decrease)

Clinical comment

(see above for additional info and also sections 4.3 and 4.4)

Analgesics; Anaesthetics

Ergot alkaloids (eg, dihydroergotamine, ergometrine, ergotamine, methylergometrine)

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Contraindicated

Eletriptan, Fentanyl

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Not recommended

Alfentanil, Buprenorphine (IV and sublingual), Cannabinoids, Methadone, Sufentanil

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Use with caution

Oxycodone PO 10 mg,

Oxycodone PO: Cmax ↑ 45%, AUC ↑ 2.4-fold

Use with caution

Oxycodone IV 0.1 mg/kg

Oxycodone IV: AUC ↑ 51%

Use with caution

Anti-bacterials for Systemic Use; Anti-mycobacterials; Antimycotics for Systemic Use

Isavuconazole

Although not studied directly, itraconazole is likely to increase the concentrations of isavuconazole.

Contraindicated

Bedaquiline

Although not studied directly, itraconazole is likely to increase the concentrations of bedaquiline.

Not recommended

Rifabutin PO 300 mg OD

Rifabutin concentration ↑ (extent unknown)

Not recommended

Clarithromycin PO 500 mg BID

Clarithromycin concentration ↑

Use with caution

Delamanid

Although not studied directly, itraconazole is likely to increase the concentrations of delamanid.

Use with caution

Antiepileptics

Carbamazepine

Although not studied directly, itraconazole is likely to increase the concentrations of carbamazepine.

Not recommended

Anti-inflammatory and Antirheumatic Products

Meloxicam 15 mg

Meloxicam Cmax ↓ 64%, AUC ↓ 37%

Use with caution

Anthelmintics; Antiprotozoals

Halofantrine

Although not studied directly, itraconazole is likely to increase the concentrations of halofantrine.

Contraindicated

Artemether-lumefantrine, Praziquantel

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Use with caution

Quinine 300 mg

Quinine Cmax ↔, AUC ↑ 96%

Use with caution

Antihistamines for Systemic Use

Astemizole, Mizolastine, Terfenadine

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Contraindicated

Ebastine 20 mg

Ebastine Cmax ↑ 2.5-fold, AUC ↑ 6.2-fold

Carebastine Cmax ↔, AUC ↑ 3.1-fold

Not recommended

Bilastine, Rupatadine

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Use with caution

Antineoplastic Agents

Irinotecan

Although not studied directly, itraconazole is likely to increase the concentrations of irinotecan and its active metabolite.

Contraindicated

Axitinib, Bosutinib, Cabazitaxel, Cabozantinib, Ceritinib, Crizotinib, Dabrafenib, Dasatinib, Docetaxel, Everolimus, Ibrutinib, Lapatinib, Nilotinib, Pazopanib, Regorafenib, Sunitinib, Temsirolimus, Trabectedin, Trastuzumab emtansine, Vinca alkaloids (eg, vinflunine, vinorelbine)

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs except for cabazitaxel and regorafenib. No statistically significant change in cabazitaxel exposure, but a high variability in the results was observed. Regorafenib AUC is expected to decrease (by estimation of active moiety)

Not recommended

Cobimetinib 10 mg

Cobimetinib Cmax ↑ 3.2-fold, AUC ↑ 6.7-fold

Not recommended

Olaparib 100 mg

Olaparib Cmax ↑ 40%, AUC ↑ 2.7-fold

Not recommended

Alitretinoin (oral), Bortezomib, Brentuximab vedotin, Erlotinib, Idelalisib, Imatinib, Nintedanib, Panobinostat, Ponatinib, Ruxolitinib, Sonidegib,

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs

Use with caution

Busulfan 1 mg/kg Q6h

Busulfan Cmax ↑, AUC ↑

Use with caution

Gefitinib 250 mg

Gefitinib 250 mg Cmax ↑, AUC ↑ 78%

Use with caution

Antithrombotic Agents

Dabigatran, Ticagrelor

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Contraindicated

Apixaban, Rivaroxaban, Vorapaxar

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Not recommended

Cilostazol, Coumarins (eg, warfarin)

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs

Use with caution

Antivirals for Systemic Use

Ombitasvir/Paritaprevir/Ritonavir (with or without Dasabuvir)

Itraconazole may increase paritaprevir concentrations .

Contraindicated

Elbasvir/Grazoprevir, Simeprevir, Tenofovir alafenamide fumarate (TAF), Tenofovir disoproxil fumarate (TDF)

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Not recommended

Cobicistat, Elvitegravir (ritonavir-boosted), Glecaprevir/Pibrentasvir, Maraviroc, Ritonavir, Saquinavir

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Use with caution

Indinavir PO 800 mg TID

Indinavir Cmax ↔, AUC ↑

Use with caution

Cardiovascular System (Agents Acting on the Renin-Angiotensin System; Antihypertensives; Beta Blocking Agents; Calcium Channel Blockers; Cardiac Therapy; Diuretics)

Bepridil, Disopyramide, Dofetilide, Dronedarone, Eplerenone, Ivabradine, Lercanidipine, Nisoldipine, Ranolazine, Sildenafil (pulmonary hypertension)

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Contraindicated

Aliskiren 150 mg

Aliskiren Cmax ↑ 5.8-fold, AUC ↑ 6.5-fold

Contraindicated

Quinidine 100 mg

Quinidine Cmax ↑ 59%, AUC ↑ 2.4-fold

Contraindicated

Felodipine 5 mg

Felodipine Cmax ↑ 7.8-fold, AUC ↑ 6.3-fold

Not recommended

Riociguat, Tadalafil (pulmonary hypertension)

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Not recommended

Bosentan, Diltiazem, Guanfacine, Other Dihydropyridines (eg, amlodipine, isradipine, nifedipine, nimodipine), Verapamil

Although not studied directly, itraconazole is likely to increase the concentrations of bosentan.

Use with caution

Digoxin 0.5 mg

Digoxin Cmax ↑ 34%, AUC ↑ 68%

Use with caution

Nadolol 30 mg

Nadolol Cmax ↑ 4.7-fold, AUC ↑ 2.2-fold

Use with caution

Corticosteroids for Systemic Use; Drugs for Obstructive Airway Diseases

Ciclesonide, Salmeterol

Although not studied directly, itraconazole is likely to increase the concentrations of salmeterol and the active metabolite of ciclesonide.

Not recommended

Budesonide INH 1 mg SD

Budesonide INH Cmax ↑ 65%, AUC ↑ 4.2-fold; Budesonide (other formulations) concentration ↑

Use with caution

Dexamethasone IV 5 mg

Dexamethasone PO 4.5 mg

Dexamethasone IV: Cmax ↔, AUC ↑ 3.3-fold

Dexamethasone PO: Cmax ↑ 69%, AUC ↑ 3.7-fold

Use with caution

Fluticasone INH 1 mg BID

Fluticasone INH concentration ↑

Use with caution

Methylprednisolone 16 mg

Methylprednisolone PO Cmax ↑ 92%, AUC ↑ 3.9-fold

Methylprednisolone IV AUC ↑ 2.6-fold

Use with caution

Fluticasone nasal

Although not studied directly, itraconazole is likely to increase the concentrations of nasally-administered fluticasone.

Use with caution

Drugs Used in Diabetes

Repaglinide 0.25 mg

Repaglinide Cmax ↑ 47%, AUC ↑ 41%

Use with caution

Saxagliptin

Although not studied directly, itraconazole is likely to increase the concentrations of saxagliptin.

Use with caution

Gastrointestinal Drugs, including Antidiarrheals, Intestinal Anti-inflammatory/Anti-infective Agents; Antiemetics and Antinauseants; Drugs for Constipation; Drugs for Functional Gastrointestinal Disorders

Cisapride, Naloxegol

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Contraindicated

Domperidone 20 mg

Domperidone Cmax ↑ 2.7-fold, AUC ↑ 3.2-fold

Contraindicated

Aprepitant, Loperamide, Netupitant

Although not studied directly, itraconazole is likely to increase the concentrations of aprepitant.

Use with caution

Immunosuppressants

Sirolimus (rapamycin)

Although not studied directly, itraconazole is likely to increase the concentrations of sirolimus.

Not recommended

Cyclosporine, Tacrolimus

Although not studied directly, itraconazole is likely to increase the concentrations of cyclosporine.

Use with caution

Tacrolimus IV 0.03 mg/kg OD

Tacrolimus IV concentration ↑

Use with caution

Lipid Modifying Agents

Lomitapide

Although not studied directly, itraconazole is likely to increase the concentrations of lomitapide.

Contraindicated

Lovastatin 40 mg,

Lovastatin Cmax ↑ 14.5->20-fold, AUC ↑ >14.8 - >20-fold

Lovastatin acid Cmax ↑ 11.5-13-fold, AUC ↑ 15.4-20-fold

Contraindicated

Simvastatin 40 mg

Simvastatin acid Cmax ↑ 17-fold, AUC ↑ 19-fold

Contraindicated

Atorvastatin

Atorvastatin acid: Cmax ↔ to ↑2.5-fold, AUC ↑ 40% to 3-fold

Not recommended

Psychoanaleptics; Psycholeptics (eg, antipsychotics, anxiolytics, and hypnotics)

Lurasidone, Pimozide, Quetiapine, Sertindole

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Contraindicated

Midazolam (oral) 7.5 mg

Midazolam (oral) Cmax ↑ 2.5 to 3.4-fold, AUC ↑ 6.6 to 10.8-fold

Contraindicated

Triazolam 0.25 mg

Triazolam Cmax ↑, AUC ↑

Contraindicated

Alprazolam 0.8 mg

Alprazolam Cmax ↔, AUC ↑ 2.8-fold

Use with caution

Aripiprazole 3 mg

Aripiprazole Cmax ↑ 19%, AUC ↑ 48%

Use with caution

Brotizolam 0.5 mg

Brotizolam Cmax ↔, AUC ↑ 2.6-fold

Use with caution

Buspirone 10 mg

Buspirone Cmax ↑ 13.4-fold, AUC ↑ 19.2-fold

Use with caution

Midazolam (iv) 7.5 mg

Midazolam (iv) 7.5 mg: concentration ↑;

Although not studied directly, itraconazole is likely to increase the concentrations of midazolam following oromucosal administration.

Use with caution

Risperidone 2-8 mg/day

Risperidone and active metabolite concentration ↑

Use with caution

Zopiclone 7.5 mg

Zopiclone Cmax ↑ 30%, AUC ↑ 70%

Use with caution

Cariprazine, Galantamine, Haloperidol, Reboxetine, Venlafaxine

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Use with caution

Respiratory System: Other Respiratory System Products

Lumacaftor/Ivacaftor PO 200/250 mg BID

Ivacaftor Cmax ↑ 3.6-fold, AUC ↑ 4.3-fold

Lumacaftor Cmax ↔, AUC ↔

Not recommended

Ivacaftor

Although not studied directly, itraconazole is likely to increase the concentrations of ivacaftor.

Use with caution

Sex Hormones and Modulators of the Genital System; Other Gynaecologicals

Cabergoline, Dienogest, Ulipristal

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Use with caution

Urologicals

Avanafil, Dapoxetine, Darifenacin

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Contraindicated

Fesoterodine

Although not studied directly, itraconazole is likely to increase the concentrations of the active metabolites, 5-hydroxymethyl tolterodine.

Moderate or severe renal or hepatic impairment: Contraindicated

Mild renal or hepatic impairment: Concomitant use should be avoided

Normal renal or hepatic function: Use with caution with a maximum fesoterodine dose of 4 mg.

Solifenacin

Although not studied directly, itraconazole is likely to increase the concentrations of solifenacin.

Severe renal impairment: Contraindicated

Moderate or severe hepatic impairment: Contraindicated

Use with caution in all other patients with a maximum solifenacin dose of 5 mg.

Vardenafil

Although not studied directly, itraconazole is likely to increase the concentrations of vardenafil.

Contraindicated in patients older than 75 years; otherwise not recommended.

Alfuzosin, Silodosin, Tadalafil (erectile dysfunction and benign prostatic hyperplasia), Tamsulosin, Tolterodine

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Not recommended

Dutasteride, Imidafenacin, Sildenafil (erectile dysfunction)

Although not studied directly, itraconazole is likely to increase the concentrations of these drugs.

Use with caution

Oxybutynin 5 mg

Oxybutynin Cmax ↑ 2-fold, AUC ↑ 2-fold

N-desethyloxybutynin Cmax ↔, AUC ↔

Following transdermal administration:

Although not studied directly, itraconazole is likely to increase the concentrations of oxybutynin following transdermal administration.

Use with caution

Miscellaneous Drugs and Other Substances

Colchicine

Although not studied directly, itraconazole is likely to increase the concentrations of colchicine

Contraindicated in patients with renal or hepatic impairment. Not recommended in other patients.

Eliglustat

Although not directly studied, itraconazole is expected to increase the concentrations of eliglustat.

Contraindicated in CYP2D6 poor metabolisers (PM).

Contraindicated in CYP2D6 intermediate metabolisers (IMs) or extensive metabolisers (EMs) taking a strong or moderate CYP2D6 inhibitor.

Use with caution in CYP2D6 IMs and EMs.

In CYP2D6 EMs with mild hepatic impairment, an eliglustat dose of 84 mg/day should be considered.

Cinacalcet

Although not studied directly, itraconazole is likely to increase the concentrations of cinacalcet.

Use with caution

4.6 Fertility, pregnancy and lactation

Pregnancy

SPORANOX Oral Solution must not be used during pregnancy except for life-threatening cases where the potential benefit to the mother outweighs the potential harm to the foetus (see section 4.3).

In animal studies itraconazole has shown reproduction toxicity (see section 5.3).

Epidemiological data on exposure to SPORANOX during the first trimester of pregnancy – mostly in patients receiving short-term treatment for vulvovaginal candidosis – did not show an increased risk for malformations as compared to control subjects not exposed to any known teratogens. Itraconazole has been shown to cross the placenta in a rat model.

Women of childbearing potential

Women of childbearing potential taking SPORANOX Oral Solution should use contraceptive precautions. Effective contraception should be continued until the menstrual period following the end of SPORANOX therapy.

Breast-feeding

A very small amount of itraconazole is excreted in human milk. SPORANOX Oral Solution must not be used during lactation.

4.7 Effects on ability to drive and use machines

No studies on the effects on the ability to drive and use machines have been performed. When driving vehicles and operating machinery the possibility of adverse reactions such as dizziness, visual disturbances and hearing loss (see section 4.8), which may occur in some instances, must be taken into account.

4.8 Undesirable effects

Summary of the safety profile

The most frequently reported adverse drug reactions (ADRs) with SPORANOX Oral Solution treatment identified from clinical trials and/or from spontaneous reporting were dizziness, headache, dysgeusia, dyspnoea, cough, abdominal pain, diarrhoea, vomiting, nausea, dyspepsia, rash, and pyrexia. The most serious ADRs were serious allergic reactions, cardiac failure/congestive heart failure/pulmonary oedema, pancreatitis, serious hepatotoxicity (including some cases of fatal acute liver failure), and serious skin reactions. Refer to subsection Tabulated list of adverse reactions for the frequencies and for other observed ADRs. Refer to section 4.4 (Special warnings and precautions for use) for additional information on other serious effects.

Tabulated list of adverse reactions

The ADRs in the table below were derived from double-blind and open-label clinical trials with SPORANOX Oral Solution involving 889 patients for the treatment of oropharyngeal and oesophageal candidiasis, and from spontaneous reporting.

The table below presents ADRs by System Organ Class. Within each System Organ Class, the ADRs are presented by incidence, 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).

Adverse Drug Reactions

Blood and lymphatic system disorders

Uncommon

Leukopenia, Thrombocytopenia

Immune system disorders

Uncommon

Hypersensitivity*

Not Known

Serum sickness, Angioneurotic oedema, Anaphylactic reaction

Metabolism and nutrition disorders

Uncommon

Hypokalaemia

Not Known

Hypertriglyceridaemia

Nervous system disorders

Common

Dizziness, Headache, Dysgeusia

Uncommon

Peripheral neuropathy*, Paraesthesia, Hypoaesthesia

Eye disorders

Uncommon

Visual disturbances (including diplopia and blurred vision)

Ear and labyrinth disorders

Uncommon

Tinnitus

Not Known

Transient or permanent hearing loss*

Cardiac disorders

Uncommon

Cardiac failure

Not Known

Congestive heart failure*

Respiratory, thoracic and mediastinal disorders

Common

Dyspnoea, Cough

Gastrointestinal disorders

Common

Abdominal pain, Diarrhoea, Vomiting, Nausea, Dyspepsia

Uncommon

Constipation

Not Known

Pancreatitis

Hepatobiliary disorders

Uncommon

Hepatic failure*, Hyperbilirubinaemia

Not Known

Serious hepatotoxicity (including some cases of fatal acute liver failure)*

Skin and subcutaneous tissue disorders

Common

Rash

Uncommon

Urticaria, Pruritus

Not Known

Toxic epidermal necrolysis, Stevens-Johnson syndrome, Acute generalised exanthematous pustulosis, Erythema multiforme, Exfoliative dermatitis, Leukocytoclastic vasculitis, Alopecia, Photosensitivity

Musculoskeletal and connective tissue disorders

Uncommon

Myalgia, Arthralgia

Reproductive system and breast disorders

Uncommon

Menstrual disorders

General disorders and administration site conditions

Common

Pyrexia

Uncommon

Oedema

Investigations

Not Known

Blood creatine phosphokinase increased

* see section 4.4.

Description of selected adverse reactions

The following is a list of additional ADRs associated with itraconazole that have been reported in clinical trials of SPORANOX Capsules and SPORANOX IV, excluding the ADR term “Injection site inflammation”, which is specific to the injection route of administration.

Infections and infestations: Sinusitis, Upper respiratory tract infection, Rhinitis

Blood and lymphatic system disorders: Granulocytopenia

Immune system disorders: Anaphylactoid reaction

Metabolism and nutrition disorders: Hyperglycaemia, Hyperkalaemia, Hypomagnesaemia

Psychiatric disorders: Confusional state

Nervous system disorders: Somnolence, Tremor

Cardiac disorders: Left ventricular failure, Tachycardia

Vascular disorders: Hypertension, Hypotension

Respiratory, thoracic and mediastinal disorders: Pulmonary oedema, Dysphonia

Gastrointestinal disorders: Gastrointestinal disorder, Flatulence

Hepatobiliary disorders: Hepatitis, Jaundice, Hepatic function abnormal

Skin and subcutaneous tissue disorders: Rash erythematous, Hyperhidrosis

Renal and urinary disorders: Renal impairment, Pollakiuria, Urinary incontinence

Reproductive system and breast disorders: Erectile dysfunction

General disorders and administration site conditions: Generalised oedema, Face oedema, Chest pain, Pain, Fatigue, Chills

Investigations: Alanine aminotransferase increased, Aspartate aminotransferase increased, Blood alkaline phosphatase increased, Blood lactate dehydrogenase increased, Blood urea increased, Gamma-glutamyltransferase increased, Hepatic enzyme increased, Urine analysis abnormal

Paediatric Population

The safety of SPORANOX oral solution was evaluated in 250 paediatric patients aged 6 months to 14 years who participated in five open-label clinical trials. These patients received at least one dose of SPORANOX oral solution for prophylaxis of fungal infections or for treatment of oral thrush or systemic fungal infections and provided safety data.

Based on pooled safety data from these clinical trials, the very common reported ADRs in paediatric patients were Vomiting (36.0%), Pyrexia (30.8%), Diarrhoea (28.4%), Mucosal inflammation (23.2%), Rash (22.8%), Abdominal pain (17.2%), Nausea (15.6%), Hypertension (14.0%), and Cough (11.2%). The nature of ADRs in paediatric patients is similar to that observed in adult subjects, but the incidence is higher in the paediatric patients.

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 Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.

4.9 Overdose

Symptoms

In general, adverse events reported with overdose have been consistent with adverse drug reactions already listed in this SmPC for itraconazole (see section 4.8).

Treatment

In the event of an overdose, supportive measures should be employed. Itraconazole cannot be removed by haemodialysis. No specific antidote is available.

5. Pharmacological properties
5.1 Pharmacodynamic properties

Pharmacotherapeutic group: Antimycotic for systemic use, triazole derivative.

ATC code: J02A C02

Mechanism of action

Itraconazole inhibits fungal 14-alpha-demethylase, resulting in a depletion of ergosterol and disruption of membrane synthesis by fungi.

PK/PD relationship

The PK/PD relationship for itraconazole, and for triazoles in general, is poorly understood and is complicated by limited understanding of antifungal pharmacokinetics.

Mechanism(s) of resistance

Resistance of fungi to azoles appears to develop slowly and is often the result of several genetic mutations. Mechanisms that have been described are:

• Over-expression of ERG11, the gene that encodes 14-alpha-demethylase (the target enzyme)

• Point mutations in ERG11 that lead to decreased affinity of 14-alpha-demethylase for itraconazole

• Drug-transporter over-expression resulting in increased efflux of itraconazole from fungal cells (i.e., removal of itraconazole from its target)

• Cross-resistance. Cross-resistance amongst members of the azole class of drugs has been observed within Candida species though resistance to one member of the class does not necessarily confer resistance to other azoles.

Breakpoints

Breakpoints for itraconazole have not yet been established for fungi using EUCAST methods.

Using CLSI methods, breakpoints for itraconazole have only been established for Candida species from superficial mycotic infections. The CLSI breakpoints are: susceptible 0.125 mg/L and resistant ≥1 mg/L.

The prevalence of acquired resistance may vary geographically and with time for selected species, and local information on resistance is desirable, particularly when treating severe infections. As necessary, expert advice should be sought when the local prevalence of resistance is such that the utility of the agent in at least some types of infections is questionable.

The in vitro susceptibility of fungi to itraconazole depends on the inoculum size, incubation temperature, growth phase of the fungi, and the culture medium used. For these reasons, the minimum inhibitory concentration of itraconazole may vary widely. Susceptibility in the table below is based on MIC90 < 1 mg itraconazole/L. There is no correlation between in vitro susceptibility and clinical efficacy.

Commonly susceptible species

Aspergillus spp.2

Blastomyces dermatitidis1

Candida albicans

Candida parapsilosis

Cladosporium spp.

Coccidioides immitis1

Cryptococcus neoformans

Epidermophyton floccosum

Fonsecaea spp. 1

Geotrichum spp.

Histoplasma spp.

Malassezia (formerly Pityrosporum) spp.

Microsporum spp.

Paracoccidioides brasiliensis1

Penicillium marneffei1

Pseudallescheria boydii

Sporothrix schenckii

Trichophyton spp.

Trichosporon spp.

Species for which acquired resistance may be a problem

Candida glabrata3

Candida krusei

Candida tropicalis3

Inherently resistant organisms

Absidia spp.

Fusarium spp.

Mucor spp.

Rhizomucor spp.

Rhizopus spp.

Scedosporium proliferans

Scopulariopsis spp.

1 These organisms may be encountered in patients who have returned from travel outside Europe.

2 Itraconazole-resistant strains of Aspergillus fumigatus have been reported.

3 Natural intermediate susceptibility.

Paediatric Population

The tolerability and safety of itraconazole oral solution was studied in the prophylaxis of fungal infections in 103 neutropenic paediatric patients aged 0 to14 years (median 5 years) in an open-label uncontrolled phase III clinical study. Most patients (78%) were undergoing allogenic bone marrow transplantation for haematological malignancies. All patients received 5 mg/kg/day of itraconazole oral solution as a single or divided dose. Due to the design of the study, no formal conclusion with regard to efficacy could be derived. The most common adverse events considered definitely for possibly related to itraconazole were vomiting, abnormal liver function, and abdominal pain.

5.2 Pharmacokinetic properties

Itraconazole

General pharmacokinetic characteristics

Peak plasma concentrations are reached within 2.5 hours following administration of the oral solution. As a consequence of non-linear pharmacokinetics, itraconazole accumulates in plasma during multiple dosing. Steady-state concentrations are generally reached within about 15 days, with Cmax and AUC values 4 to 7-fold higher than those seen after a single dose. Steady-state Cmax values of about 2 μg/mL are reached after oral administration of 200 mg once daily. The terminal half-life of itraconazole generally ranges from 16 to 28 hours after single dose and increases to 34 to 42 hours with repeated dosing. Once treatment is stopped, itraconazole plasma concentrations decrease to an almost undetectable concentration within 7 to 14 days, depending on the dose and duration of treatment. Itraconazole mean total plasma clearance following intravenous administration is 278 mL/min. Itraconazole clearance decreases at higher doses due to saturable hepatic metabolism.

Absorption

Itraconazole is rapidly absorbed after administration of the Oral Solution. Peak plasma concentrations of itraconazole are reached within 2.5 hours following administration of the Oral Solution under fasting conditions. The observed absolute bioavailability of itraconazole under fed conditions is about 55% and increases by 30% when the Oral Solution is taken in fasting conditions. Itraconazole exposure is greater with the Oral Solution than with the Capsule formulation when the same dose of drug is given (see section 4.4).

Distribution

Most of the itraconazole in plasma is bound to protein (99.8%) with albumin being the main binding component (99.6% for the hydroxy- metabolite). It has also a marked affinity for lipids. Only 0.2% of the itraconazole in plasma is present as free drug. Itraconazole is distributed in a large apparent volume in the body (> 700 L), suggesting extensive distribution into tissues: Concentrations in lung, kidney, liver, bone, stomach, spleen and muscle were found to be two to three times higher than corresponding concentrations in plasma, and the uptake into keratinous tissues, skin in particular, up to four times higher. Concentrations in the cerebrospinal fluid are much lower than in plasma, but efficacy has been demonstrated against infections present in the cerebrospinal fluid.

Metabolism

Itraconazole is extensively metabolised by the liver into a large number of metabolites. In vitro studies have shown that CYP3A4 is the major enzyme involved in the metabolism of itraconazole. The main metabolite is hydroxy-itraconazole, which has in vitro antifungal activity comparable to itraconazole; trough plasma concentrations of this metabolite are about twice those of itraconazole.

Elimination

Itraconazole is excreted mainly as inactive metabolites in urine (35%) and in faeces (54%) within one week of an oral solution dose. Renal excretion of itraconazole and the active metabolite hydroxy-itraconazole account for less than 1% of an intravenous dose. Based on an oral radiolabelled dose, faecal excretion of unchanged drug ranges from 3% to 18% of the dose. As re-distribution of itraconazole from keratinous tissues appears to be negligible, elimination of itraconazole from these tissues is related to epidermal regeneration. Contrary to plasma, the concentration in skin persists for 2 to 4 weeks after discontinuation of a 4-week treatment and in nail keratin – where itraconazole can be detected as early as 1 week after start of treatment – for at least six months after the end of a 3-month treatment period.

Special Populations

Hepatic Impairment

Itraconazole is predominantly metabolised in the liver. A pharmacokinetic study was conducted in 6 healthy and 12 cirrhotic subjects who were administered a single 100-mg dose of itraconazole as a capsule. A statistically significantly reduction in average Cmax (47%) and a two-fold increase in the elimination half-life (37 ± 17 versus 16 ± 5 hours) of itraconazole were noted in cirrhotic subjects compared with healthy subjects. However, overall exposure to itraconazole, based on AUC, was similar in cirrhotic patients and in healthy subjects. Data are not available in cirrhotic patients during long-term use of itraconazole (see sections 4.2 and 4.4).

Renal Impairment

Limited data are available on the use of oral itraconazole in patients with renal impairment.

A pharmacokinetic study using a single 200-mg dose of itraconazole (four 50-mg capsules) was conducted in three groups of patients with renal impairment (uraemia: n=7; haemodialysis: n=7; and continuous ambulatory peritoneal dialysis: n=5). In uremic subjects with a mean creatinine clearance of 13 mL/min. × 1.73 m2, the exposure, based on AUC, was slightly reduced compared with normal population parameters. This study did not demonstrate any significant effect of haemodialysis or continuous ambulatory peritoneal dialysis on the pharmacokinetics of itraconazole (Tmax, Cmax, and AUC0-8h). Plasma concentration-versus-time profiles showed wide intersubject variation in all three groups.

After a single intravenous dose, the mean terminal half-lives of itraconazole in patients with mild (defined in this study as CrCl 50-79 mL/min), moderate (defined in this study as CrCl 20-49 mL/min), and severe renal impairment (defined in this study as CrCl <20 mL/min) were similar to that in healthy subjects (range of means 42-49 hours vs 48 hours in renally impaired patients and healthy subjects, respectively). Overall exposure to itraconazole, based on AUC, was decreased in patients with moderate and severe renal impairment by approximately 30% and 40%, respectively, as compared with subjects with normal renal function.

Data are not available in renally impaired patients during long-term use of itraconazole. Dialysis has no effect on the half-life or clearance of itraconazole or hydroxy-itraconazole (see sections 4.2 and 4.4).

Paediatric Population

Two pharmacokinetic studies have been conducted in neutropenic children aged 6 months to 14 years in which itraconazole oral solution was administered 5 mg/kg once or twice daily. The exposure to itraconazole was somewhat higher in older children (6 to 14 years) compared to younger children. In all children, effective plasma concentrations of itraconazole were reached within 3 to 5 days after initiation of treatment and maintained throughout treatment.

Hydroxypropyl- β -Cyclodextrin

The oral bioavailability of hydroxypropyl-β-cyclodextrin given as a solubilizer of itraconazole in oral solution is on average lower than 0.5% and is similar to that of hydroxypropyl-β-cyclodextrin alone. This low oral bioavailability of hydroxypropyl-β-cyclodextrin is not modified by the presence of food and is similar after single and repeated administrations.

5.3 Preclinical safety data

Itraconazole

Acute oral toxicity studies with itraconazole in mice, rats, guinea-pigs and dogs indicate a wide safety margin (3- to 16-fold of Maximum Recommended Human Dose [MRHD] based on mg/m2).

Itraconazole is not a primary carcinogen in rats or mice up to 20 and 80 mg/kg, respectively.

Nonclinical data on itraconazole revealed no indications for gene toxicity, primary carcinogenicity or impairment of fertility. At high doses, of 40 and 80 mg/kg/day in rats (1- and 2-fold of MRHD based on mg/m2), effects were observed in the adrenal cortex, liver and the mononuclear phagocyte system but appear to have a low relevance for the proposed clinical use. Itraconazole was found to cause a dose-related increase in maternal toxicity, embryotoxicity and teratogenicity in rats and mice at high doses. A global lower bone mineral density was observed in juvenile dogs after chronic itraconazole administration, (no toxicity was observed up to 20 mg/kg (2-fold of MRHD based on mg/m2), and in rats, a decreased bone plate activity, thinning of the zona compacta of the large bones, and an increased bone fragility was observed.

Hydroxypropyl-β-cyclodextrin

Non-clinical data reveal no special hazard for humans based on conventional studies of repeated dose toxicity, genotoxicity, and toxicity to reproduction and development. In a rat carcinogenicity study (at 80 mg/kg dose (2-fold of MRHD based on mg/m2)), hydroxypropyl-β-cyclodextrin produced adenocarcinomas in the large intestine and exocrine pancreatic adenocarcinomas. These findings were not observed in a similar mouse carcinogenicity study. The clinical relevance of the large intestine adenocarcinomas is low and the mechanism of exocrine pancreatic adenocarcinomas induction not considered relevant to humans.

Reproductive toxicology

Itraconazole was found to cause a dose-related increase in maternal toxicity, embryotoxicity, and teratogenicity in rats and mice at 40, 80 and 160 mg/kg (0.5-, 1- and 4-fold of MRHD based on mg/m2). In rats, the teratogenicity consisted of major skeletal defects; in mice, it consisted of encephaloceles and macroglossia. No teratogenic effects were found in rabbits up to 80 mg/kg dose (4-fold of MRHD based on mg/m2).

6. Pharmaceutical particulars
6.1 List of excipients

Hydroxypropyl-β (cyclodextrin), sorbitol (liquid non crystallising) E420, propylene glycol, cherry flavour 1 (contains 1,2-propylene glycol E 1520 and ethanol), cherry flavour 2 (contains 1,2-propylene glycol E 1520), caramel flavour, sodium saccharin, hydrochloric acid and sodium hydroxide (for pH adjustment), purified water.

6.2 Incompatibilities

In the absence of compatibility studies this medicinal product must not be mixed with other medicinal products.

6.3 Shelf life

2 years as packaged for sale.

1 month after first opening the container.

6.4 Special precautions for storage

Do not store above 25°C.

6.5 Nature and contents of container

150 ml amber glass bottle, with child-resistant polypropylene screw cap and LDPE liner ring.

A measuring cup graduated to indicate 10 ml is provided.

6.6 Special precautions for disposal and other handling

SPORANOX Oral Solution is supplied in bottles with a child-proof cap, and should be opened as follows: push the plastic screw cap down while turning it counter clockwise.

A measuring cup is supplied with the SPORANOX Oral Solution. Use the measuring cup just as it sits on the bottle. Make sure that the side with the graduations (the side that holds less) is uppermost; that is the side you have to fill. When the arrow on the side points up, the correct side is uppermost.

7. Marketing authorisation holder

Janssen-Cilag Limited

50-100 Holmers Farm Way

High Wycombe

Buckinghamshire

HP12 4EG

UK

8. Marketing authorisation number(s)

PL 00242/0307

9. Date of first authorisation/renewal of the authorisation

26 April 1996/26 April 2006

10. Date of revision of the text

01/10/2021