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Shared Care Protocol PRAMIPEXOLE for treatment of idiopathic Parkinson’s disease PLEASE CHECK http://www.wales.nhs.uk/sites3/page.cfm?orgid=284&pid=5988 FOR THE LATEST VERSION OF THIS PROTOCOL Protocol No. 13 General guidance Licensed indication Background information The Gwent Partnership Medicines and Therapeutics Committee has agreed this protocol. It outlines shared care arrangements for patients taking pramipexole for the treatment of Parkinson’s Disease. This document should be read in conjunction with: 1. The Shared Care Agreement Form 2. The Summary of Product Characteristics (Data Sheet) for Mirapexin® see: http://www.medicines.org.uk/ The treatment of the signs and symptoms of idiopathic Parkinson's disease, alone (without levodopa) or in combination with levodopa, i.e. over the course of the disease, through to late stages when the effect of levodopa wears off or becomes inconsistent and fluctuations of the therapeutic effect occur (end of dose or “on off” fluctuations). Pramipexole is a non-ergot derived dopamine (D3) receptor agonist. Dopamine agonists are used to minimise the end-of-dose or wearing-off effects encountered with levodopa therapy. Dopamine agonists, compared with levodopa, have lower symptomatic efficacy and more adverse effects, particularly in the elderly and those with poor cognitive function. Patient selection criteria for treatment with pramipexole are: patients already on levodopa who are experiencing on/off fluctuations patients with Parkinson’s disease who are not on levodopa & have a life-expectancy greater than 5 years. Contraindications Hypersensitivity to pramipexole or to any of the excipients. Dosage regimen Special Warnings/Precautions Avoid in patients with renal impairment; pregnancy or breast feeding; psychotic disorders; severe cardiovascular disease; avoid abrupt withdrawal (risk of neuroleptic malignant syndrome). OPHTHALMIC COMPLICATIONS: there is a theoretical risk of degeneration of outer retina (seen in albino rats given high doses, but not reported in humans). If patients have visual problems or history of retinal disease baseline testing is recommended by an ophthalmologist. At review by consultant patients will be asked about any night vision problems and checked for visual field loss. DRIVING: Drowsiness (including sudden onset of sleep) may affect performance of skilled tasks; patients should not drive or undertake potentially dangerous activities until stabilised on treatment & not experiencing problems. Patients should be warned about the possible additive effects of other sedating drugs and/or alcohol. Pre-treat with domperidone 20mg three times daily (to prevent nausea & postural hypotension) and continue until on stable dose of pramipexole. Pramipexole is prescribed as pramipexole (base). Initially, 88micrograms three times daily, after one week increase dose to 180micrograms three times daily, after a further week increase dose to 350micrograms three times daily and then a week later increase, if necessary, to 700micrograms three times daily. Concurrent levodopa dose may need to be reduced during dose titration and maintenance. This Shared Care Protocol should be read in conjunction with the Summary of Product Characteristics Status: APPROVED Approved by: GPMTC Issue Date Review Date Page 1 of 3 8th March 2007 March 2009 ASCENDING Dose Schedule (provided patients do not experience intolerable sideeffects) Dosage (base) Week 1 Week 2 Week 3 Week 4 onwards Total daily Dose (base) 264micrograms 3 x 88micrograms 540micrograms 3 x 180micrograms 1.05mg 3 x 350micrograms IF NECESSARY further increases, at weekly intervals, of 3 x 180micrograms daily to a max of 3.3mg daily in 3 divided doses. TAPERING OFF Schedule If total daily dose MORE THAN 540micrograms (3 x 180 micrograms) Each day Reduce by 3 x 180micrograms (540micrograms) If total daily dose is 540micrograms OR BELOW (3 x 180 micrograms) Each day Reduce by 3 x 88micrograms (264micrograms) Adverse effects Very common (>10%): Nausea, dyskinesia. Common (1-10%): Constipation, peripheral oedema, headache, fatigue, confusional state, hallucinations (mostly visual), insomnia and Somnolence (8.6%) – including excessive daytime somnolence and sudden sleep onset (see Background information above and: Current Problems in Pharmacovigilance: Volume 25, (Pages 13-20) November 1999). Hypotensive reactions may be disturbing in some patients during the first few days of treatment. Monitoring (by Secondary Care) Baseline monitoring (by Hospital Dept.) BP, U&Es, baseline ophthalmic examination is recommended by an ophthalmologist for patients with visual problems or history of retinal disease Ongoing monitoring (by Hospital Dept.) Patients should be asked about night vision problems and checked for visual field loss at regular intervals. A referral for an ophthalmic examination should be made if patient reports visual abnormalities. BP. Responsibilities of Secondary Care Confirm the diagnosis of Parkinson’s disease or the deterioration of Parkinson’s disease e.g. increasing mobility problems. To confirm patient/carer understanding and consent to treatment. To advise the patient/carer on potential side effects and the action to be taken should they occur particularly the possibility of hallucinations and somnolence and/or an episode of sudden sleep onset and the implication for driving or operating machines. Provide a minimum of one month’s supply of pramipexole together with a dose titration schedule. Assess side-effects and response (Consultant or Parkinson’s Disease Specialist Nurse). To send the GP a Shared Care Agreement Form and invite them to participate in the shared care management of the patient. Review the patient’s response and the continued appropriateness of pramipexole throughout the course of treatment (Consultant or Parkinson’s Disease Specialist Nurse), normally reviews should be every 3 months over the first year. Stop the treatment when considered to be no longer appropriate (Consultant or Parkinson’s Disease Specialist Nurse). To provide the GP with an outline clinical management plan including a dosage schedule for pramipexole. To make any subsequent changes to the dose, as required. This Shared Care Protocol should be read in conjunction with the Summary of Product Characteristics Status: APPROVED Approved by: GPMTC Issue Date Review Date Page 2 of 3 8th March 2007 March 2009 To perform baseline and on-going monitoring (as above). To inform the GP of dosage schedule, monitoring measurements and progress of treatment after each appointment. To inform the GP if the patient fails to attend an appointment and clearly indicate that the patient is taking pramipexole. Responsibilities of patients/carers To attend hospital and GP appointments Failure to attend will result in the medication being stopped. To report any worsening of control of symptoms and/or adverse events immediately to their specialist or GP. Responsibilities of Primary Care To issue ongoing prescriptions for pramipexole as per dosage schedule recommended by the specialist. To check for drug interactions in BNF Appendix 1 before co-prescribing any other drug To inform the specialist services if the patient shows significant worsening of control of symptoms or deterioration of Parkinson’s disease. To inform the specialist services of severe untoward events or side effects and to report these to the MHRA (using the Yellow Card scheme) as appropriate. In cases of significant adverse effects, pramipexole may be tapered off at a rate of 540micrograms of base per day, daily doses at or below 540micrograms should be reduced by 264micrograms of base per day. (see tapering schedule in ‘Dosage Regime’) Contact details Dr. Huw Morris Dr. Gareth Llewelyn Debbie Davies Dr. Ken Dawson Dr. David Sykes Dr. Michael Edwards Dr. Mukund Joglekar Neurology, RGH Neurology, RGH Neurology, RGH Neurology, NHH Medicine, RGH Medicine, NHH Medicine, CDMH 01633 234829 01633 234453 01633 234151 01873 732739 01633 238322 01873 732517 02920 807351 or 807183 MHRA links: Sudden onset of sleep Current Problems in Pharmacovigilance: Volume 25, (Pages 13-20) November 1999 (at:http://www.mhra.gov.uk/home/idcplg?IdcService=SS_GET_PAGE&useSecondary=true&ssDocName=CON0 07463&ssTargetNodeId=368) This Shared Care Protocol should be read in conjunction with the Summary of Product Characteristics Status: APPROVED Approved by: GPMTC Issue Date Review Date Page 3 of 3 8th March 2007 March 2009