Neuropsychiatr Dis Treat. 2010 Sep 07;6:483-90. doi: 10.2147/ndt.s5190.
Therapeutic interventions and adjustments in the management of Parkinson disease: role of combined carbidopa/levodopa/entacapone (Stalevo).
Neuropsychiatric disease and treatment
Paolo Solla, Antonino Cannas, Francesco Marrosu, Maria Giovanna Marrosu
Affiliations
Affiliations
- Movement Disorders Center, Institute of Neurology, University of Cagliari, Cagliari, Italy.
PMID: 20856911
PMCID: PMC2938297 DOI: 10.2147/ndt.s5190
Abstract
Parkinson disease (PD) is a neurodegenerative disorder characterized by 3 cardinal motor symptoms: resting tremor, rigidity, and bradykinesia. Since its introduction 40 years ago, levodopa has represented the gold standard for dopaminergic stimulation therapy in patients with PD. Levodopa is routinely combined with a dopa-decarboxylase inhibitor (DDCI) to prevent the conversion of levodopa into dopamine in peripheral circulation. However, up to 80% of patients treated with continuous levodopa manifest the onset of disabling motor complications capable of producing an adverse effect on quality of life as the disease progresses. In recent years, a new, safe, and efficacious armamentarium of treatment options has been provided by the marketing of the catechol-O-methyltransferase (COMT) inhibitor, entacapone, a peripheral blocker of dopa to 3-0-methyldopa metabolism, which increments levodopa brain availability. When administered with levodopa, entacapone conjugates the rapid onset of levodopa-induced effects with a protracted efficiency, thus providing additional benefits to classic levodopa treatment by increasing "on" time in fluctuating PD patients, and theoretically providing a more continuous and physiological-like stimulation of dopamine receptors implying a reduced risk of motor complications. In this context, the use of a single administration of combined carbidopa/ levodopa/entacapone (Stalevo(®)) in the treatment of PD affords clinical improvements similar to those obtained by 2 separate tablets (ie, levodopa/DDCI and entacapone), although the former produces a more positive effect on quality of life than the latter. Additionally, the STalevo Reduction In Dyskinesia Evaluation (STRIDE-PD) study was designed with the aim of demonstrating that the combination of levodopa, carbidopa, and entacapone, used as initial levodopa therapy, significantly delays the onset of dyskinesias compared with the conventional levodopa/carbidopa formulation. Unfortunately, STRIDEPD failed to prove the benefit of continuous dopaminergic stimulation with triple therapy in a clinical setting. Recently, the effect of combined COMT inhibitor with levodopa administration in reducing homocysteine synthesis has been described. To this regard, clear evidence has been presented indicating homocysteine as a risk factor for vascular diseases, cognitive impairment, and dementia. Several studies have discussed the potential of entacapone as adjunct to levodopa/ DDCI in reducing plasma homocysteine levels with contrasting results.
Keywords: Parkinson disease; carbidopa/levodopa/entacapone
References
- Eur Neurol. 2001;45(2):111-8 - PubMed
- J Neurol. 1998 Nov;245(11 Suppl 3):P25-34 - PubMed
- Clin Neuropharmacol. 2000 Jul-Aug;23(4):195-202 - PubMed
- Parkinsonism Relat Disord. 2007 Dec;13(8):466-79 - PubMed
- Eur J Neurol. 2009 Dec;16(12):1305-11 - PubMed
- Expert Rev Neurother. 2008 Jun;8(6):957-67 - PubMed
- Acta Neurol Scand. 2000 Jun;101(6):372-80 - PubMed
- Drugs. 2000 Jun;59(6):1233-50 - PubMed
- Neurology. 1993 Apr;43(4):677-81 - PubMed
- Neurology. 1997 Aug;49(2):393-9 - PubMed
- Eur Neurol. 2005;53(4):197-202 - PubMed
- Lancet Neurol. 2006 Jun;5(6):525-35 - PubMed
- Acta Neurol Scand. 2006 Sep;114(3):181-6 - PubMed
- Arch Neurol. 2004 Jul;61(7):1044-53 - PubMed
- J Neurol Neurosurg Psychiatry. 2007 Sep;78(9):944-8 - PubMed
- Clin Neuropharmacol. 2000 Sep-Oct;23(5):252-61 - PubMed
- Neurology. 1994 Jul;44(7 Suppl 6):S23-8 - PubMed
- Clin Neuropharmacol. 2000 Mar-Apr;23(2):82-5 - PubMed
- Neurology. 1994 Oct;44(10):1865-8 - PubMed
- Neurology. 2004 Jan 13;62(1 Suppl 1):S47-55 - PubMed
- Neurology. 2004 Mar 23;62(6 Suppl 4):S3-7 - PubMed
- J Neural Transm (Vienna). 2010 Mar;117(3):333-42 - PubMed
- Neurology. 1999 Aug 11;53(3):573-9 - PubMed
- Arch Neurol. 2006 Dec;63(12):1756-60 - PubMed
- Arch Neurol. 1999 Jan;56(1):33-9 - PubMed
- J Neurol Neurosurg Psychiatry. 2000 May;68(5):589-94 - PubMed
- N Engl J Med. 2003 Apr 3;348(14):1356-64 - PubMed
- Lancet Neurol. 2005 Jun;4(6):366-70 - PubMed
- Neurology. 2001 Jun;56(11 Suppl 5):S1-S88 - PubMed
- Neurology. 1999 Sep 22;53(5):1012-9 - PubMed
- N Engl J Med. 2007 Jan 4;356(1):39-46 - PubMed
- Lancet. 1977 Feb 12;1(8007):345-9 - PubMed
- Pharmacol Rev. 1975 Jun;27(2):135-206 - PubMed
- Parkinsonism Relat Disord. 2005 Jun;11(4):253-6 - PubMed
- N Engl J Med. 2000 May 18;342(20):1484-91 - PubMed
- JAMA. 2002 Apr 3;287(13):1653-61 - PubMed
- Arch Neurol. 2004 Oct;61(10):1563-8 - PubMed
- Mov Disord. 2000 Sep;15(5):873-8 - PubMed
- Parkinsonism Relat Disord. 2005 Mar;11(2):131-3 - PubMed
- Acta Neurol Scand. 2005 Jan;111(1):21-8 - PubMed
- Expert Rev Neurother. 2005 Nov;5(6):811-21 - PubMed
- J Neural Transm (Vienna). 2003 Mar;110(3):239-51 - PubMed
- Eur J Neurol. 2003 Mar;10(2):137-46 - PubMed
- JAMA. 2000 Oct 18;284(15):1931-8 - PubMed
- Lancet Neurol. 2006 Jan;5(1):3-5 - PubMed
- Neurosci Lett. 2010 Jan 14;468(3):287-91 - PubMed
- Mov Disord. 2001 Jul;16(4):631-41 - PubMed
- Acta Neurol Scand. 2002 Apr;105(4):245-55 - PubMed
- J Neurol Neurosurg Psychiatry. 1995 Mar;58(3):293-9 - PubMed
- Mov Disord. 2007 Dec;22(16):2398-404 - PubMed
- Mov Disord. 2006 Mar;21(3):343-53 - PubMed
- J Neurol Neurosurg Psychiatry. 2003 Aug;74(8):1071-9 - PubMed
- Neurology. 1998 Nov;51(5):1309-14 - PubMed
- Expert Opin Pharmacother. 2006 Jul;7(10):1399-407 - PubMed
- Neuron. 2010 Jan 14;65(1):135-42 - PubMed
- CNS Drugs. 2004;18(11):733-46 - PubMed
- Neuropsychiatr Dis Treat. 2008 Aug;4(4):743-57 - PubMed
- Neurology. 2006 Jun 27;66(12):1941-3 - PubMed
- CNS Drugs. 2007;21(8):677-92 - PubMed
- Mov Disord. 2009 Mar 15;24(4):541-50 - PubMed
- CNS Drugs. 2003;17(7):475-89 - PubMed
- J Neural Transm (Vienna). 2009 Oct;116(10):1253-6 - PubMed
- Neurology. 2000;55(11 Suppl 4):S13-20; discussion S21-3 - PubMed
- Neurology. 2004 Jan 13;62(1 Suppl 1):S64-71 - PubMed
- Trends Neurosci. 2000 Oct;23(10 Suppl):S117-26 - PubMed
- N Engl J Med. 2009 Sep 24;361(13):1268-78 - PubMed
- Exp Neurol. 2005 Mar;192(1):184-93 - PubMed
- J Neural Transm (Vienna). 2004 Aug;111(8):1053-63 - PubMed
- Parkinsonism Relat Disord. 2009 Jul;15(6):477-8 - PubMed
- Neurology. 1997 Sep;49(3):724-8 - PubMed
- Neurology. 2006 Apr 25;66(8):1200-6 - PubMed
- Eur J Clin Pharmacol. 2010 Feb;66(2):119-25 - PubMed
- Clin Neuropharmacol. 1996 Aug;19(4):283-96 - PubMed
- Ann Neurol. 1997 Nov;42(5):747-55 - PubMed
- Mov Disord. 1998 Mar;13(2):234-41 - PubMed
- Neurology. 2004 Jan 13;62(1 Suppl 1):S17-30 - PubMed
- Patient Prefer Adherence. 2009 Nov 03;3:51-9 - PubMed
Publication Types