Source: European Medicines Agency (EU) Revision Year: 2022 Publisher: Orion Corporation, Orionintie 1, FI-02200 Espoo, Finland
Corbilta is indicated for the treatment of adult patients with Parkinson’s disease and end-of-dose motor fluctuations not stabilised on levodopa/dopa decarboxylase (DDC) inhibitor treatment.
The optimum daily dose must be determined by careful titration of levodopa in each patient. The daily dose should be preferably optimised using one of the seven available tablet strengths (50 mg/12.5 mg/200 mg, 75 mg/18.75 mg/200 mg, 100 mg/25 mg/200 mg, 125 mg/31.25 mg/200 mg, 150 mg/37.5 mg/200 mg, 175 mg/43.75 mg/200 mg or 200 mg/50 mg/200 mg levodopa/carbidopa/entacapone).
Patients should be instructed to take only one Corbilta tablet per dose administration. Patients receiving less than 70–100 mg carbidopa a day are more likely to experience nausea and vomiting. While the experience with total daily dose greater than 200 mg carbidopa is limited, the maximum recommended daily dose of entacapone is 2 000 mg and therefore the maximum dose is 10 tablets per day for the Corbilta strengths of 50 mg/12.5 mg/200 mg, 75 mg/18.75 mg/200 mg, 100 mg/25 mg/200 mg, 125 mg/31.25 mg/200 mg and 150 mg/37.5 mg/200 mg. Ten tablets of Corbilta 150 mg/37.5 mg/200 mg equals 375 mg of carbidopa a day. According to this daily carbidopa dose, the maximum recommended daily dose of Corbilta 175 mg/43.75 mg/200 mg is 8 tablets per day and Corbilta 200 mg/50 mg/200 mg dose is 7 tablets per day.
Usually Corbilta is to be used in patients who are currently treated with corresponding doses of standard release levodopa/DDC inhibitor and entacapone.
a. Patients who are currently treated with entacapone and with standard release levodopa/carbidopa in doses equal to Corbilta tablet strengths can be directly transferred to corresponding Corbilta tablets. For example, a patient taking one tablet of 50 mg/12.5 mg of levodopa/carbidopa with one tablet of entacapone 200 mg four times daily can take one 50 mg/12.5 mg/200 mg Corbilta tablet four times daily in place of their usual levodopa/carbidopa and entacapone doses.
b. When initiating Corbilta therapy for patients currently treated with entacapone and levodopa/carbidopa in doses not equal to Corbilta tablets (50 mg/12.5 mg/200 mg or 75 mg/18.75 mg/200 mg or 100 mg/25 mg/200 mg or 125 mg/31.25 mg/200 mg or 150 mg/37.5 mg/200 mg or 175 mg/43.75 mg/200 mg or 200 mg/50 mg/200 mg), Corbilta dosing should be carefully titrated for optimal clinical response. At the initiation, Corbilta should be adjusted to correspond as closely as possible to the total daily dose of levodopa currently used.
c. When initiating Corbilta in patients currently treated with entacapone and levodopa/benserazide in a standard release formulation, the dosing of levodopa/benserazide should be discontinued in the previous night, and Corbilta should be started in the next morning. The starting dose of Corbilta should provide either the same amount of levodopa or slightly (5–10%) more.
Initiation of Corbilta may be considered at corresponding doses to current treatment in some patients with Parkinson’s disease and end-of-dose motor fluctuations, who are not stabilised on their current standard release levodopa/DDC inhibitor treatment. However, a direct switch from levodopa/DDC inhibitor to Corbilta is not recommended for patients who have dyskinesias or whose daily levodopa dose is above 800 mg. In such patients it is advisable to introduce entacapone treatment as a separate treatment (entacapone tablets) and adjust the levodopa dose if necessary, before switching to Corbilta.
Entacapone enhances the effects of levodopa. It may therefore be necessary, particularly in patients with dyskinesia, to reduce levodopa dose by 10–30% within the first days to first weeks after initiating Corbilta treatment. The daily dose of levodopa can be reduced by extending the dosing intervals and/or by reducing the amount of levodopa per dose, according to the clinical condition of the patient.
When more levodopa is required, an increase in the frequency of doses and/or the use of an alternative strength of Corbilta should be considered, within the dose recommendations.
When less levodopa is required, the total daily dose of Corbilta should be reduced either by decreasing the frequency of administration by extending the time between doses, or by decreasing the strength of Corbilta at an administration.
If other levodopa products are used concomitantly with a Corbilta tablet, the maximum dose recommendations should be followed.
If Corbilta treatment (levodopa/carbidopa/entacapone) is discontinued and the patient is transferred to levodopa/DDC inhibitor therapy without entacapone, it is necessary to adjust the dosing of other antiparkinsonian treatments, especially levodopa, to achieve a sufficient level of control of the parkinsonian symptoms.
The safety and efficacy of Corbilta in children aged below 18 years have not been established. No data are available.
No dose adjustment of Corbilta is required for elderly.
It is advised that Corbilta should be administered cautiously to patients with mild to moderate hepatic impairment. Dose reduction may be needed (see section 5.2). For severe hepatic impairment see section 4.3.
Renal impairment does not affect the pharmacokinetics of entacapone. No particular studies are reported on the pharmacokinetics of levodopa and carbidopa in patients with renal insufficiency, therefore Corbilta therapy should be administered cautiously to patients in severe renal impairment including those receiving dialysis therapy (see section 5.2).
Each tablet is to be taken orally either with or without food (see section 5.2). One tablet contains one treatment dose and the tablet may only be administered as whole tablets.
The post-marketing data includes isolated cases of overdose in which the reported highest daily doses of levodopa and entacapone have been at least 10 000 mg and 40 000 mg, respectively. The acute symptoms and signs in these cases of overdose included agitation, confusional state, coma, bradycardia, ventricular tachycardia, Cheyne-Stokes respiration, discolourations of skin, tongue and conjunctiva, and chromaturia. Management of acute overdose with Corbilta therapy is similar to acute overdose with levodopa. Pyridoxine, however, is not effective in reversing the actions of Corbilta.
Hospitalisation is advised and general supportive measures should be employed with immediate gastric lavage and repeated doses of charcoal over time. This may hasten the elimination of entacapone in particular by decreasing its absorption/reabsorption from the GI tract. The adequacy of the respiratory, circulatory and renal systems should be carefully monitored and appropriate supportive measures employed. ECG monitoring should be started and the patient carefully monitored for the possible development of arrhythmias. If required, appropriate anti-arrhythmic therapy should be given. The possibility that the patient has taken other active substances in addition to Corbilta should be taken into consideration. The value of dialysis in the treatment of overdose is not known.
3 years.
This medicinal product does not require any special storage conditions.
HDPE bottle with a child resistant PP-closure.
Pack sizes of 50/12.5/200 mg, 100/25/200 mg and 150/37.5/200 mg: 10, 30, 100, 130, 175 and 250 tablets.
Pack sizes of 75/18.75/200 mg, 125/31.25/200 mg, 175/43.75/200 mg and 200/50/200 mg: 10, 30, 100, 130 and 175 tablets.
Not all pack sizes may be marketed.
Any unused medicinal product or waste material should be disposed of in accordance with local requirements.
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