Budenofalk

Budenofalk 2mg/dose rectal foam

Each dose of 1.2 g foam contains 2 mg of budesonide.

Excipients with known effect: cetyl alcohol, propylene glycol.

Rectal foam, pressurised container

White to pale white, creamy firm foam

For the treatment of active ulcerative colitis that is limited to the rectum and the sigmoid colon.

Posology

Adults aged > 18 years

One actuation of 2 mg budesonide daily.

Paediatric population

Budenofalk 2mg rectal foam should not be used in children due to insufficient experience in this age group.

Method of administration

Budenofalk 2mg rectal foam can be applied in the morning or evening.

The canister is first fitted with an applicator and then shaken for about 15 seconds before the applicator is inserted into the rectum as far as comfortable. Note that the dose is only sufficiently accurate when the pump dome is held downwards as vertically as possible. To administer a dose of Budenofalk 2mg rectal foam, the pump dome is fully pushed down and very slowly released. Following the activation the applicator should be held in position for 10 - 15 seconds before being withdrawn from the rectum.

The best results are obtained when the intestine is evacuated prior to administration of Budenofalk 2mg rectal foam.

Duration of treatment

The attending physician determines the duration of use. An acute episode generally subsides after 6 to 8 weeks. Budenofalk 2mg rectal foam should not be used after this period of time.

Budenofalk 2mg rectal foam must not be used in patients with:

- hepatic cirrhosis.

Treatment with Budenofalk 2mg rectal foam results in lower systemic steroid levels than conventional oral glucocorticosteroid therapy with systemically acting corticoids. Transfer from other glucocorticosteroid therapy may result in reappearance or recurrence of symptoms relating to the change in systemic steroid levels.

Caution is required in patients with tuberculosis, hypertension, diabetes mellitus, osteoporosis, peptic ulcer, glaucoma, cataracts, family history of diabetes, family history of glaucoma, or any other condition in which glucocorticosteroids may have undesirable effects.

Systemic effects of glucocorticosteroids may occur, particularly when prescribed at high doses and for prolonged periods. Such effects may include Cushing's syndrome, adrenal suppression, growth retardation, decreased bone mineral density, cataract, glaucoma and a wide range of psychiatric/behavioural effects.

Infection

Suppression of the inflammatory response and immune function increases the susceptibility to infections and their severity. The risk of deterioration of bacterial, fungal, amoebic and viral infections during glucocorticosteroid treatment should be carefully considered. The clinical presentation may often be atypical and serious infections such as septicaemia and tuberculosis may be masked, and therefore may reach an advanced stage before being recognised.

Chickenpox

Chickenpox is of particular concern since this normally minor illness may be fatal in immunosuppressed patients. Patients without a definite history of chickenpox should be advised to avoid close personal contact with chickenpox or herpes zoster and if exposed they should seek urgent medical attention. If the patient is a child, parents must be given the above advice. Passive immunisation with varicella-zoster immunoglobulin (VZIG) is needed by exposed non-immune patients who are receiving systemic glucocorticosteroids or who have used them within the previous 3 months; this should be given within 10 days of exposure to chickenpox. If a diagnosis of chickenpox is confirmed, the illness warrants specialist care and urgent treatment. Glucocorticosteroids should not be stopped and the dose may need to be increased.

Measles

Patients with compromised immunity who have come into contact with measles should, wherever possible, receive normal immunoglobulin as soon as possible after exposure.

Vaccines

Live vaccines should not be given to individuals with chronic glucocorticosteroid use. The antibody response to other vaccines may be diminished.

Patients with liver function disorders

Based on the experience with patients suffering from late stage primary biliary cirrhosis (PBC) with hepatic cirrhosis an increased systemic availability of budesonide in all patients with severely impaired hepatic function is to be expected. However, in patients with liver disease without hepatic cirrhosis budesonide in daily oral doses of 9 mg was safe and well tolerated. There is no evidence that a specific dose recommendation for patients with non-cirrhotic liver diseases or only slightly impaired liver function is necessary.

Visual disturbance

Visual disturbance may be reported with systemic and topical corticosteroid use. If a patient presents with symptoms such as blurred vision or other visual disturbances, the patient should be considered for referral to an ophthalmologist for evaluation of possible causes which may include cataract, glaucoma or rare diseases such as central serous chorioretinopathy (CSCR) which have been reported after use of systemic and topical corticosteroids.

Others

Glucocorticosteroids may cause suppression of the hypothalamic-pituitary-adrenal (HPA) axis and reduce the stress response. When patients are subject to surgery or other stresses, supplementary systemic glucocorticosteroid treatment is recommended.

Concomitant treatment with ketoconazole or other CYP3A4 inhibitors should be avoided.

This medicine contains cetyl alcohol and propylene glycol which can cause local skin reactions (e.g. contact dermatitis).

Pharmacodynamic interactions

Cardiac glycosides

The action of the glycoside can be potentiated by potassium deficiency.

Saluretics

Potassium excretion can be enhanced.

Pharmacokinetic interactions

Cytochrome P450

- CYP3A4 inhibitors

Co-treatment with CYP3A inhibitors, including cobicistat-containing products, is expected to increase the risk of systemic side-effects. The combination should be avoided unless the benefit outweighs the increased risk of systemic corticosteroid side-effects, in which case patients should be monitored for systemic corticosteroid side-effects.

Ketoconazole 200 mg once daily p.o. increased the plasma concentrations of budesonide (3 mg single dose) approximately 6 - fold during concomitant administration. When ketoconazole was administered 12 hours after budesonide, the concentrations increased approximately 3 - fold. As there are not enough data to give dose recommendations, the combination should be avoided.

Other potent inhibitors of CYP3A4 such as ritonavir, itraconazole, clarithromycin and grapefruit juice are also likely to cause a marked increase of the plasma concentrations of budesonide. Therefore concomitant administration of budesonide should be avoided.

- CYP3A4 inducers

Compounds or drugs such as carbamazepine and rifampicin, which induce CYP3A4, might reduce the systemic but also the local exposure of budesonide at the gut mucosa. An adjustment of the budesonide dose might be necessary.

- CYP3A4 substrates

Compounds or drugs which are metabolized by CYP3A4 might be in competition with budesonide. This might lead to an increased budesonide plasma concentration if the competing substance has a stronger affinity to CYP3A4, or - if budesonide binds stronger to CYP3A4 - the competing substance might be increased in plasma and a dose adaption/reduction of this drug might be required.

Elevated plasma concentrations and enhanced effects of glucocorticosteroids have been reported in women also receiving oestrogens or oral contraceptives, but this has not been observed with oral low dose combination contraceptives.

Because adrenal function may be suppressed by treatment with budesonide, an ACTH stimulation test for diagnosing pituitary insufficiency might show false results (low values).

Pregnancy

Administration during pregnancy should be avoided unless there are compelling reasons for therapy with Budenofalk 2mg rectal foam. There are few data of pregnancy outcomes after oral administration of budesonide in humans. Although data on the use of inhaled budesonide in a large number of exposed pregnancies indicate no adverse effect, the maximal concentration of budesonide in plasma has to be expected to be higher in the treatment with Budenofalk 2mg rectal foam compared to inhaled budesonide. In pregnant animals, budesonide, like other glucocorticosteroids, has been shown to cause abnormalities of fetal development. The relevance of this to man has not been established.

Breast-feeding

Budesonide is excreted in human milk (data on excretion after inhalative use is available). However, only minor effects on the breast-fed child are anticipated after application of Budenofalk 2mg rectal foam within the therapeutic range. A decision must be made whether to discontinue breast-feeding or to discontinue/abstain from budesonide therapy taking into account the benefit of breast feeding for the child and the benefit of therapy for the woman.

Fertility

There are no data on the effect of budesonide on human fertility. Fertility was unaffected following budesonide treatment in animal studies.

No studies on the effects on the ability to drive and use machines have been performed.

The following frequency conventions are used in the evaluation of undesirable effects:

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).

The following adverse reactions were additionally reported in clinical studies with Budenofalk 2mg rectal foam (frequency: uncommon): increased appetite, increase in erythrocyte sedimentation rate, leucocytosis, nausea, abdominal pain, flatulence, paraesthesias in the abdominal region, anal fissure, aphthous stomatitis, frequent urge to defecate, rectal bleeding, increase in transaminases (GOT, GPT), increase in parameters of cholestasis (GGT,AP), increase in amylase, change in cortisol, urinary tract infection, dizziness, disturbances of smell, insomnia, increased sweating, asthenia, increase in body weight.

Most of the adverse events mentioned in this SmPC can also be expected for treatments with other glucocorticosteroids.

Occasionally, adverse events may occur which are typical for systemic glucocorticosteroids. These adverse events depend on the dosage, the period of treatment, concomitant or previous treatment with other glucocorticosteroids and the individual sensitivity.

Some of the adverse events were reported after long-term use of orally administered budesonide.

Due to its local action, the risk of adverse reactions of Budenofalk 2mg rectal foam is generally lower than when taking systemically acting glucocorticosteroids.

An exacerbation or the reappearance of extra intestinal manifestations (especially affecting skin and joints) can occur on switching a patient from systemically acting glucocorticosteroids to the locally acting budesonide.

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

Yellow Card Scheme

Website: www.mhra.gov.uk/yellowcard

To date, no cases of overdose with budesonide are known.

Pharmacotherapeutic group: Intestinal antiinflammatory agents, corticosteroids acting locally

ATC code: A07EA06

The exact mechanism of action of budesonide in the treatment of ulcerative colitis/procto-sigmoiditis is not fully understood. Data from clinical pharmacology studies and controlled clinical trials strongly indicate that the mode of action of budesonide is predominantly based on a local action in the gut. Budesonide is a glucocorticosteroid with a high local anti-inflammatory effect. At a dosage of 2 mg budesonide, applied rectally, budesonide leads to practically no suppression of the hypothalamus-hypophysis-adrenal cortex axis.

Budenofalk 2mg rectal foam investigated up to the daily dosage of 4 mg budesonide showed virtually no influence on the plasma cortisol level.

Absorption

After oral application the systemic availability of budesonide is about 10 %. After rectal administration the areas under the concentration time curves are about 1.5-fold higher than in historical controls considering the identical oral budesonide dose. Peak levels are obtained after an average of 2 - 3 hours after administering Budenofalk 2mg rectal foam.

Distribution

Budesonide has a high volume of distribution (about 3 L/kg). Plasma protein binding averages 85 - 90 %.

Biotransformation

Budesonide undergoes extensive biotransformation in the liver (approximately 90 %) to metabolites of low glucocorticosteroid activity. The glucocorticosteroid activity of the major metabolites, 6 β - hydroxybudesonide and 16 α - hydroxyprednisolone, is less than 1 % of that of budesonide.

Elimination

The average elimination half-life is about 3 - 4 hours. The mean clearance rate is about 10 - 15 L/min for budesonide, determined by HPLC-based methods.

Spread

A scintigraphic investigation with technetium-marked Budenofalk 2mg rectal foam on patients with ulcerative colitis showed that the foam spreads out over the entire sigmoid.

Specific patient populations (liver diseases)

Dependent on the type and severity of liver diseases the metabolism of budesonide might be decreased.

Preclinical investigations on dogs have shown that Budenofalk 2mg rectal foam is well tolerated locally.

Preclinical data in acute, subchronic and chronic toxicological studies with budesonide showed atrophies of the thymus gland and adrenal cortex and a reduction especially of lymphocytes. These effects were less pronounced or at the same magnitude as observed with other glucocorticosteroids. These steroid effects might also be of relevance in man.

Budesonide had no mutagenic effects in a number of in vitro and in vivo tests.

A slightly increased number of basophilic hepatic foci were observed in chronic rat studies with budesonide, and in carcinogenicity studies there was an increased incidence of primary hepatocellular neoplasms, astrocytomas (in male rats) and mammary tumours (female rats) observed. These tumours are probably due to the specific steroid receptor action, increased metabolic burden on the liver and anabolic effects, effects which are also known from other glucocorticosteroids in rat studies and therefore represent a class effect. No similar effects have ever been observed in man for budesonide, neither in clinical trials nor from spontaneous reports.

In general, preclinical data reveal no special hazard for humans based on conventional studies of safety pharmacology, repeated dose toxicity, genotoxicity, carcinogenic potential.

Cetyl alcohol

Citric acid monohydrate

Disodium edetate

Emulsifying wax

Macrogol stearyl ether

Propylene glycol

Purified water

Propellant:

n-Butane

Isobutane

Propane

Not applicable.

3 years

After first opening: 4 weeks.

Do not store above 25°C.

Do not refrigerate or freeze.

This is a pressurised container, containing inflammable propellant.

Do not expose to temperature higher than 50°C, protected from direct sunlight. Do not pierce or burn even when empty.

Aluminium pressurised container with metering valve together with 14 PVC applicators coated with white soft paraffin and liquid paraffin for administration of the foam and 14 plastic bags for hygienic disposal of the applicators.

Pack sizes:

Original pack with 1 pressurised container, contains at least 14 doses of 1.2 g rectal foam each.

Original pack with 2 pressurised containers, contains at least 2 x 14 doses of 1.2 g rectal foam each.

Hospital pack with 1 pressurised container, contains at least 14 doses of 1.2 g rectal foam each.

Not all pack sizes may be marketed.

No special requirements

Dr. Falk Pharma GmbH

Leinenweberstr. 5

79108 Freiburg

Germany

PL08637/0011

Date of first authorisation: 15 Jun 2006

Date of last renewal: 15 Jun 2011

05/2017