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Dopamine agonist therapy in Parkinson's disease: Spanish expert consensus on its use in different clinical situations

Santos García, D.; Pagonabarraga Mora, J.; Escamilla Sevilla, F.; García Ruiz, P. J.; Infante Ceberio, J.; Kulisevsky Bojarski, J.; Linazasoro Cristóbal, G.; Mir Rivera, Pablo

Abstract

Background: Different types of therapies were proven effective for the medical management of motor and non-motor symptoms in Parkinson’s disease (PD). We aimed to gain consensus on the dopamine agonist (DA) therapy use in different clinical scenarios of Parkinson’s disease (PD) patients. Methods: This consensus study was based on the nominal group technique. Initially, a consensus group comprising 12 expert neurologists in the PD field identified the topics to be addressed and elaborated different evidence-based preliminary statements. Next, a panel of 48 Spanish neurologists expressed their opinion on an internet-based systematic voting program. Finally, initial ideas were reviewed and rewritten according to panel contribution and were ranked by the consensus group using a Likert-type scale. The analysis of data was carried out by using a combination of both qualitative and quantitative methods. The consensus was achieved if the statement reached ≥ 3.5 points in the voting process. Results: The consensus group produced 76 real-world recommendations. The topics addressed included 12 statements related to DA therapy in early PD, 20 statements concerning DA treatment strategy in patients with motor complications, 11 statements associated with DA drugs and their side effects, and 33 statements regarding DA therapy in specific clinical scenarios. The consensus group did not reach a consensus on 15 statements. Conclusion: The findings from this consensus method represent an exploratory step to help clinicians and patients in the appropriate use of DA in different stages and clinical situations of PD.

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Neu ología 40 (2025) 171—181 NEUROLOGÍA www.else ie .es/neu ologia ORIGINAL ARTICLE Dopamine agonis he apy in Pa kinson’s disease: Spanish expe consensus on i s use in di e en clinical si ua ions D. San os Ga cíaa,∗, J. Pagonaba aga Mo ab, F. Escamilla Se illac,d, P.J. Ga cía Ruize, J. In an e Cebe io ,g, J. Kulise sky Boja skib, G. Linazaso o C is óbalh, M.R. Luquín Piudoi, J.C. Ma ínez Cas illoj, S. Jesús Maes ek, L. Vela Desojol, F.J. Campos Lucasm, F. Caballe o Ma ínezm, P. Mi n,o,p, Panel o Expe s Phase 11 aSe icio de Neu ología, CHUAC (Complejo Hospi ala io Uni e si a io de A Co u˜ na), As Xubias 84, 15006 A Co u˜ na, Spain bHospi al de la San a C eu i San Pau, C/de S . An oni Ma ia Cla e , 167, 08025 Ba celona, Spain cUnidad de T as o nos del Mo imien o, Se icio de Neu ología, Hospi al Uni e si a io Vi gen de las Nie es, A . de las Fue zas A madas, 2, 18014 G anada, Spain dIns i u o de In es igación Biosani a ia (ibs.G anada), G anada, Spain eHospi al Uni e si a io Fundación Jiménez Díaz, A . de los Reyes Ca ólicos, 2, 28040 Mad id, Spain Se icio de Neu ología, Hospi al Uni e si a io de Ma qués de Valdecilla-IDIVAL, Calle Ca denal He e a O ia, 39011 San ande , Can ab ia, Spain gCen o de In es igación Biomédica en Red en En e medades Neu odegene a i as (CIBERNED), Uni e sidad de Can ab ia, San ande , Spain hPoliclínica Gipuzkoa, Paseo de Mi amón, 174, 20014 San Sebas ián, Gipuzkoa, Spain iClínica Uni e sidad de Na a a, A . de Pío XII, 36, 31008 Pamplona, Na a a, Spain jHospi al Uni e si a io Ramón y Cajal, IRYCIS, Ca e e a M-607, 9, 100, 28034 Mad id, Spain kUnidad de T as o nos del Mo imien o, Se icio de Neu ología y Neu ofisiología Clínica, Hospi al Uni e si a io Vi gen del Rocío, Ins i u o de Biomedicina de Se illa, A . Manuel Siu o , S/n, 41013 Se illa, Spain lHospi al Uni e si a io Fundación Alco cón, C/ Budapes , 1, 28922 Alco cón, Mad id, Spain mFacul ad de Medicina, Uni e sidad F ancisco de Vi o ia, Ca e e a Pozuelo, km 1800, 28223 Majadahonda, Mad id, Spain nUnidad de T as o nos del Mo imien o, Se icio de Neu ología y Neu ofisiología Clínica, Ins i u o de Biomedicina de Se illa, (IBiS), Hospi al Uni e si a io Vi gen del Rocío/CSIC/Uni e sidad de Se illa, A . Manuel Siu o , S/n, 41013 Se illa, Spain oCen o de In es igación Biomédica en Red sob e En e medades Neu odegene a i as (CIBERNED), Calle Valde ebollo, 5, 28031 Mad id, Spain pDepa amen o de Medicina, Facul ad de Medicina, Uni e sidad de Se illa, A . de Sánchez Pizjuán, s/n, 41009 Se illa, Spain Recei ed 28 Ma ch 2023; accep ed 1 Ap il 2023 A ailable online 5 July 2023 KEYWORDS Dopamine agonis ; Pa kinson’s disease; Expe consensus Abs ac Backg ound: Di e en ypes o he apies we e p o en e ec i e o he medical managemen o mo o and non-mo o symp oms in Pa kinson’s disease (PD). We aimed o gain consensus on he dopamine agonis (DA) he apy use in di e en clinical scena ios o Pa kinson’s disease (PD) pa ien s. DOI o e e s o a icle: h ps://doi.o g/10.1016/j.n l.2023.04.002. ∗Co esponding au ho . E-mail add ess: [email p o ec ed] (D. San os Ga cía). 1Panel o Expe s Phase 1 a e lis ed in Appendix A. h ps://doi.o g/10.1016/j.n leng.2023.04.008 2173-5808/© 2023 Sociedad Espa˜ nola de Neu olog´ ıa. Published by Else ie Espa˜ na, S.L.U. This is an open access a icle unde he CC BY-NC-ND license (h p://c ea i ecommons.o g/licenses/by-nc-nd/4.0/). D. San os Ga cía, J. Pagonaba aga Mo a, F. Escamilla Se illa e al. Me hods: This consensus s udy was based on he nominal g oup echnique. Ini ially, a consensus g oup comp ising 12 expe neu ologis s in he PD field iden ified he opics o be add essed and elabo a ed di e en e idence-based p elimina y s a emen s. Nex , a panel o 48 Spanish neu ologis s exp essed hei opinion on an in e ne -based sys ema ic o ing p og am. Finally, ini ial ideas we e e iewed and ew i en acco ding o panel con ibu ion and we e anked by he consensus g oup using a Like - ype scale. The analysis o da a was ca ied ou by using a combina ion o bo h quali a i e and quan i a i e me hods. The consensus was achie ed i he s a emen eached ≥ 3.5 poin s in he o ing p ocess. Resul s: The consensus g oup p oduced 76 eal-wo ld ecommenda ions. The opics add essed included 12 s a emen s ela ed o DA he apy in ea ly PD, 20 s a emen s conce ning DA ea - men s a egy in pa ien s wi h mo o complica ions, 11 s a emen s associa ed wi h DA d ugs and hei side e ec s, and 33 s a emen s ega ding DA he apy in specific clinical scena ios. The consensus g oup did no each a consensus on 15 s a emen s. Conclusion: The findings om his consensus me hod ep esen an explo a o y s ep o help clinicians and pa ien s in he app op ia e use o DA in di e en s ages and clinical si ua ions o PD. © 2023 Sociedad Espa˜ nola de Neu olog´ ıa. Published by Else ie Espa˜ na, S.L.U. This is an open access a icle unde he CC BY-NC-ND license (h p://c ea i ecommons.o g/licenses/by-nc-nd/ 4.0/). PALABRAS CLAVE Agonis a dopaminé gico; En e medad de Pa kinson; Consenso de expe os T a amien o con agonis as dopaminé gicos en la en e medad de Pa kinson: Consenso de expe os espa˜ noles sob e su uso en di e en es si uaciones clínicas Resumen An eceden es: Se demos ó la e ec i idad de di e en es ipos de e apias pa a el a amien o médico de los sín omas mo o es y no mo o es en la en e medad de Pa kinson (EP). Nos p o- pusimos log a un consenso sob e el uso de la e apia con agonis as dopaminé gicos (DA) en di e en es escena ios clínicos de pacien es con en e medad de Pa kinson (EP). Mé odos: Es e es udio de consenso se basó en la écnica de g upo nominal. Inicialmen e, un G upo de Consenso o mado po 12 neu ólogos expe os en el campo de la EP iden ificó los emas a a a y elabo ó di e en es decla aciones p elimina es basadas en la e idencia. A con- inuación, un panel de 48 neu ólogos espa˜ noles exp esó su opinión en un p og ama de o ación sis emá ica a a és de In e ne . Finalmen e, las ideas iniciales ue on e isadas y eesc i as de acue do con la con ibución del panel y ue on clasificadas po el g upo de Consenso u ilizando una escala ipo Like . El análisis de los da os se lle ó a cabo median e una combinación de mé odos cuali a i os y cuan i a i os. El consenso se alcanzaba si la afi mación alcanzaba ≥3,5 pun os en el p oceso de o ación. Resul ados: El G upo de Consenso elabo ó 76 ecomendaciones pa a el mundo eal. Los emas abo dados incluye on 12 afi maciones elacionadas con la e apia con DA en la EP emp ana, 20 afi maciones ela i as a la es a egia de a amien o con DA en pacien es con complicaciones mo o as, 11 afi maciones asociadas con los á macos DA y sus e ec os secunda ios, y 33 afi ma- ciones ela i as a la e apia con DA en escena ios clínicos específicos. El G upo de Consenso no llegó a un consenso en 15 afi maciones. Conclusiones: Los esul ados de es e mé odo de consenso ep esen an un paso explo a o- io pa a ayuda a clínicos y pacien es en el uso ap opiado de la DA en di e en es es adios y si uaciones clínicas de la EP. © 2023 Sociedad Espa˜ nola de Neu olog´ ıa. Publicado po Else ie Espa˜ na, S.L.U. Es e es un a ´ ıculo Open Access bajo la licencia CC BY-NC-ND (h p://c ea i ecommons.o g/licenses/by- nc-nd/4.0/). In oduc ion Pa kinson’s disease (PD) is a ch onic, p og essi e diso de caused by he g adual loss o dopamine gic neu ons in he midb ain dopamine gic nucleus.1Di e en he apies we e p o en e ec i e o ea ing mo o symp oms in PD, including dopamine agonis s (DA) agen s, aman adine, monoamine oxidase ype B (MAO B) inhibi o s, ca echol-O-me hyl ans e ase (COMT) inhibi o s, and le odopa. E en hough he ea men a senal o PD has been a ailable o decades, he e a e s ill di e ences in ea men app oaches o pa ien s acing simila clinical scena ios and consen- sus a ou ing one pa icula s a egy is lacking.2Al hough he le odopa ea men s ill ep esen s he mos e ec i e symp- oma ic ea men o PD, i s ch onic use migh be associa ed wi h challenging complica ions such as dyskinesias, mo o fluc u- a ions, o lack o e ficacy. Because o his, i is p e e able o 172 Neu ología 40 (2025) 171—181 only use low doses o le odopa he apy du ing he ini ial s ages o PD.3 In e es ingly, di e en o mula ions o he app o ed d ugs ha e been p og essi ely a ailable, which p o ided a p olonged hal -li e in some cases, o he possibili y o use en e al o pa en e al d ug deli e y in o he s.4These addi ional pha macological o mula ions o commonly used d ugs in PD acili a ed pa ien adhe ence and ol- e ance in mos cases bu added mo e he e ogenei y in pa ien ca e. The DA d ugs ha e a widesp ead use in daily p ac ice, as hey can be p esc ibed bo h a disease onse as a symp oma ic ea men , o in pa ien s acing mo o fluc ua ions du ing ad anced s ages o he disease.5A p esen , only he non-e go DA d ugs a e being used in PD, which included p amipexole, opini ole, o igo ine, and apomo phine.6The e is a cu en a iabili y ega ding which DA is p esc ibed o a specific pa ien , and his migh be ela ed o he d ugs’ o mula ions, po en ial ad e se e ec s, o miscellaneous. This s udy aimed o each an expe consensus on he app op ia e use o DA in di e en clinical scena ios o PD. Me hods S udy design A nominal g oup echnique p ocedu e was conduc ed be ween June 2020 and May 2021. The consensus ounds we e web-based and in- pe son due o epidemiological conce ns ela ed o he COVID-19 pandemic. The wo kflow o he p ocess used in his s udy is p e- sen ed in Fig. 1. Ini ially, a consensus g oup was ec ui ed by using a snowball sampling echnique. This g oup was composed o 12 neu ologis s, expe s in he PD field, who iden ified he opics o be add essed. Topic selec ion The documen was mean o add ess consensus on using DA agen s in di e en clinical se ings o pa ien s wi h PD. The main opics o be add essed we e done by 3 membe s o he consensus g oup (PMR, JPM, DSG) a e hough ul delibe a ion. The clinical scena ios con- side ed included: 1) DA he apy in ea ly PD; 2) DA he apy in PD pa ien s wi h mo o complica ions; 3) DA he apy in pa ien s expe- iencing i s po en ial side e ec s (impulse con ol diso de s [ICD], pa hological gambling, ea men in ole ance); and 4) DA he apy in pa ien s acing non-mo o symp oms o PD (neu opsychia ic symp- oms, au onomic dys unc ion, sleep diso de s). Nex , a sys ema ic sea ch on PubMed, EMBASE, Índice Médico Espa˜ nol, and LILACS was pe o med. This ask was assigned o a specialised eam o documen alis s om he In es iga ion Uni , F ancisco de Vi o ia School o Medicine, Mad id, who adjus ed and d a ed he ele an clinical ques ions using he PICO model (P- p oblem, I-in e en ion, C-compa ison, O-ou come). Then, he consensus g oup unde wen a web-based mee ing on May 24, 2021, in o de o sys ema ically discuss he selec ed pape s, exchange ideas, and s a he 2- ound nominal g oup echnique o ing.7In he fi s ound, di e en opics we e p esen ed o a panel o 48 neu ologis s om all o e Spain o explo e hei opinion on using DA in a ious clinical scena ios. The fi s su ey used an open-ended ound in o de o acili a e he panellis s’ eedback. Because o his, s a emen s could be e iewed o modified by new ideas, acco ding o he panellis s’ esponses, o acili a e u u e ag eemen . In he second ound, he consensus g oup combined he esul s ob ained om ound 1 wi h hei sys ema ic li e a u e esea ch. A e his, he conclusions we e w i en as clinical ec- ommenda ions and s uc u ed by hema ic blocks. In his second ound, he consensus g oup exp essed hei le el o ag eemen o disag eemen on he di e en s a emen s using a Like - ype scale. Fo doing so, he panellis s had o speci y hei le el o ag ee- men wi h each s a emen using a 5-poin esponse key, anging om 1 (s ongly disag ee) o 5 (s ongly ag ee). Finally, a consensus documen was d a ed. Panel selec ion The expe panel consis ed o 48 neu ologis s om di e en Spanish egions. The panellis s we e selec ed as ecognised specialis s in he clinical and academic fields o PD. A o al o 45 (93.7%) o hem comple ed all he o ing ounds. Consensus g oup me hod The nominal g oup echnique is a aluable me hod used o achie e consensus among pa icipan s in di e en academic fields, and i is con enien o explo ing expe s’ ag eemen in heal hca e esea ch.8In his echnique, a acili a o asks he pa icipan s o con ibu e wi h a ying poin s o iew abou a specific opic in a s uc u ed manne in o de o gene a e a lis o s a emen s. Then, he g oup discusses and complemen s he s a emen s wi h new ideas as necessa y. Each pa icipan usually anks he asse ion by o ing on an o dinal scale. Finally, he esul s a e analysed and e iewed in o de o de e mine he o e all g oup ag eemen s.9 S a is ical Analysis The analysis o da a was ca ied ou by using a combina ion o bo h quali a i e and quan i a i e me hods. Expe s’ opinions and quo es eco ded du ing he mee ings and he online p ocess we e used o help unde s and indi idual and g oup a ionale. In some cases, he pe sonal commen s om he panellis s we e used o c oss-checking agains w i en in o ma ion o imp o e he consensus g oup’s ideas. The quan i a i e analysis was ob ained and s a is ically analysed a e he consensus g oup sco ed and anked he di e en s a e- men s. Resul s a e shown by using he mean and s anda d de ia ion (SD). In ou s udy, consensus was conside ed o ha e been eaced o s a emen s sco ing ≥ 3.5 poin s on he consensus g oup o ing.10 Resul s As a esul , he ad iso y commi ee p oduced 76 eal-wo ld ecom- menda ions on he p oposed main opics (Tables 1-4). The consensus g oup eached ag eemen on 11 s a emen s ela ed o DA he apy in ea ly PD, 14 s a emen s conce ning DA ea men s a egy in pa ien s wi h mo o complica ions, 6 s a emen s associa ed wi h DA d ugs and hei side e ec s, and 27 s a emen s ega ding DA he apy in specific clinical scena ios. The consensus g oup did no each a consensus on 15 s a emen s. Gene al ecommenda ions 1) Dopamine agonis he apy in ea ly Pa kinson’s disease The bes ime o ini ia e symp oma ic ea men a ies significan ly be ween pa ien s, acco ding wi h di e en ac o s. The bes ea - men o adminis e ini ially in PD pa ien s is based on he pa ien ’s cha ac e is ics, impac o disease on daily ac i i ies, and he pha - macodynamics o he selec ed d ug. The e is no gene al consensus o ad ise clinicians wi h he selec ion o he ini ial pha macological ea men o PD. The mos impo an ac o s ha migh influence he ea men selec ion a e he pa ien ’s age, se e i y o symp- oms, e olu ion in yea s, he an ipa kinsonian powe o he selec ed d ug, and he d ug- ela ed side-e ec s. Based on his, clinicians and pa ien s mus discuss he bes specific pha macologic op ion ole ance.5,11 Table 1 shows he sxpe s’ ag eemen on DA use as ini ial he apy in PD. 173 D. San os Ga cía, J. Pagonaba aga Mo a, F. Escamilla Se illa e al. Figu e 1 Design and wo kflow o he s udy. PD: Pa kinson’s disease. Table 1 Dopamine agonis he apy in ea ly Pa kinson’s Disease. Mean (SD) 1 Non-e go DA (p amipexole, opini ole, and o igo ine) a e e ec i e in ea ly PD as mono he apy (le el o e idence A). 4.91 (0.29) 2 The ea ly use o DA educes he incidence o de eloping mo o fluc ua ions compa ed o le odopa. On he con a y, DA has less he apeu ic e ficacy and mo e significan side e ec s. 4.27 (0.86) 3 The compa ed e ficacy s udies be ween di e en DA agonis s showed no s a is ical di e ences. 4.18 (0.57) 4 The e ficacy o ex ended- elease o mula ions o p amipexole and opini ole is no in e io o immedia e- elease able s du ing he ea ly s ages o PD. 4.64 (0.48) 5 In elde ly pa ien s (o e 70 yea s o age) wi hou demen ia, ea men wi h DA can be ini ia ed i he pa ien has mild o mode a e symp oms. 3.82 /1.03) 6 In elde ly pa ien s (o e 70 yea s o age), enal unc ion should be moni o ed i p amipexole is ini ia ed. 4.55 (0.50) 7 Ex ended- elease o mula ions o p amipexole and opini ole a o ea men compliance due o hei easy posology compa ed o immedia e- elease able s. 4.64 (0.48) 8 The e is no e idence suppo ing he idea ha p amipexole is mo e e ficien in educing emo in PD pa ien s compa ed o o he DA agonis s. 4.09 (0.79) 9 Ro igo ine imp o es sleep quali y, pain pe cep ion, and mo ning akinesia. 4.45 (0.50) 10 P amipexole has a mild an idep essan ac ion. 3.91 (0.29) 11 DA ea men s, including p amipexole, opini ole, and o igo ine, a e associa ed wi h impulse con ol diso de . I is necessa y o discuss his po en ial side e ec wi h pa ien s, especially younge ones. 5.00 (0) 12 Fu he clinical s udies a e needed o a ge he bes ini ial ea men s a egy o ea ly PD. 4.36 (0.64) DA: dopamine agonis ; PD: Pa kinson’s disease. 2) Dopamine agonis he apy in Pa kinson’s disease pa ien s wi h mo o complica ions The bes ea men s a egy in PD pa ien s acing mo o complica ions mus be balanced be ween adequa e con ol o he symp oms p oduced by he selec ed d ug and he appea - ance o ad e se pha macological e ec s. Typically, le odopa is he mo e e ec i e ea men o educing he mo o symp oms o PD, al hough i is mo e equen ly associa ed wi h de elopmen o dyskinesia compa ed o DA, especially in he long- e m ea men . Despi e he lowe isk o inducing mo o complica ions, DA d ugs 174 Neu ología 40 (2025) 171—181 Table 2 Dopamine agonis he apy in ad anced Pa kinson’s disease: ea men s a egy in pa ien s wi h mo o complica ions. Mean (SD) 13 When selec ing a DA, he ollowing i ems should be conside ed in pa ien s wi h mo o fluc ua ions: he pa ien ’s clinical p ofile, age (especially when pa ien s a e < 60 yea s old), and he po en ial addi ional e ec o he DA ea men on o he symp oms o PD. 4.18 (0.57) 14 In pa ien s wi h dyskinesias, dose i a ion is sugges ed o imp o e ea men ole ance. 4.18 (0.94) 15 The e a e no ele an di e ences be ween indi idual DA d ugs in con olling mo o complica ions o PD, as hey a e dose-dependen . 4.18 (0.57) 16 P e e ably, he use o e go -de i ed DA d ugs should be a oided. 4.91 (0.29) 17 Swi ching om one DA d ug o ano he is acili a ed by using dose equi alence cha s. 4.09 (0.79) 18 DA ex ended- elease o al o mula ions and anscu aneous o mula ions a e p e e ed o e immedia e- elease able s due o hei easie dosage and i a ion (especially wi h o igo ine). 4.45 (.050) 19 Ex ended- elease DA o mula ions a e mo e e ec i e in con olling fluc ua ions compa ed o immedia e- elease able s. 2.64 (0.88) 20 When pa ien s ha e mo o complica ions, DA d ugs imp o e o he non-mo o symp oms, especially apa hy, dep ession, and es less legs synd ome. 4.09 (0.51) 21 When pa ien s ha e mo o complica ions, DA d ugs can imp o e o he non-mo o symp oms such as pain, insomnia, and a igue. 4.00 (0.60) 22 When pa ien s ha e mo o complica ions, p amipexole could p o ide a be e imp o emen o emo compa ed o o he AD d ugs. 2.64 (0.64) 23 Apomo phine has a lowe po en ial isk o neu opsychia ic complica ions han o he DA d ugs due o i s pa icula a fini y o dopamine gic ecep o s. 3.55 (0.89) 24 When using in e mi en injec ions o subcu aneous apomo phine, pa ien s usually equi e ewe han 5 injec ions pe day. 4.18 (0.57) 25 The in e mi en injec ions o subcu aneous apomo phine ha e limi ed long- e m adhe ence. 3.64 (0.48) 26 I is ecommended o s a ea men wi h CSAI in a specialised clinical se ing o a day ca e cen e. 4.64 (0.48) 27 CSAI migh ep esen a sui able adjunc i e he apy in specific PD pa ien s. 4.27 (0.62) 28 Fo p esc ibing CSAI, he ole and influence o he ca egi e a e essen ial. 4.27 (0.62) 29 CSAI is gene ally well ole a ed. 3.36 (0.88) 30 Pa ien s’ como bidi ies should be assessed be o e ini ia ing a DA d ug (ie, enal ailu e, o al an icoagula ion wi h couma ins). 4.73 (0.45) 31 DA d ugs a e usually ini ia ed be o e he pa ien de elops mo o complica ions. The e o e, DAs a e no con enien when pa ien s ha e mo o fluc ua ions (excep when dose adjus men is equi ed). 2.00 (1.28) 32 DA he apy imp o es he quali y o li e in pa ien s acing mo o complica ions. 4.00 (0.43) CSAI: con inuous subcu aneous apomo phine in usion; DA: dopamine agonis ; PD: Pa kinson’s disease. a e associa ed wi h an inc eased isk o de eloping specific ad e se e en s, including somnolence, hallucina ions, and beha io diso - de s. Fu he mo e, DA a e no well ole a ed in elde ly pa ien s, especially hose wi h p e ious cogni i e impai men . The ad an- ages and disad an ages o he di e en he apeu ic s a egies in pa ien s wi h mo o complica ions mus be weighed ca e ully by bo h clinicians and pa ien s, p io i ising he pa ien ’s specific needs and con ex . Table 2 shows he expe s’ ag eemen on DA use in PD pa ien s wi h mo o complica ions. 3-Dopamine agonis he apy in pa ien s expe iencing i s po en ial ad e se e ec s (impulse con ol diso de s, ea men in ole ance) Some side e ec s caused by DA agen s and le odopa migh be sim- ila and may ange om mild o se e e in ensi y. They include nausea, omi ing, sleepiness, o hos a ic hypo ension, con usion, and hallucina ions. Ne e heless, pa ien s on DA he apies a e mo e likely o de elop pe iphe al oedema, somnolence, cons ipa ion, dizziness, hallucina ions, and nausea compa ed, and DA- ea ed pa ien s a e mo e likely o discon inue ea men due o ad e se e en s.6Se e i y o ICD can ange om mild symp oms associa ed wi h compulsi e beha io (soli ai e-playing, compulsi e cleaning, e c) o mo e se e e and des uc i e conduc , such as pa hologi- cal gambling o hype sexuali y. The ICD can be de eloped a any s age o PD and in pa ien s on any dopamine gic he apy, bu i is mo e equen ly obse ed in PD pa ien s aking DA d ugs.5ICD migh imp o e wi h DA discon inua ion, bu some pa ien s migh main ain compulsi e symp oms a e DA cessa ion.12 Table 3 shows he expe s’ ag eemen on DA he apy use in PD pa ien s acing i s po en ial side e ec s. 175 D. San os Ga cía, J. Pagonaba aga Mo a, F. Escamilla Se illa e al. Table 3 Dopamine agonis s and side e ec s. Mean (SD) 33 No all DA d ugs ha e he same isk o sys emic side e ec s. 3.55 (0.78) 34 The equency o sys emic side e ec s is simila when using an ex ended- elease DA o mula ion compa ed o immedia e- elease able s. 3.64 (0.54) 35 Gas oin es inal side e ec s a e common wi h DA ea men . 3.45 (0.66) 36 Gas oin es inal side e ec s a e mo e p e alen in pa ien s on DA mono he apy compa ed wi h hose on adjunc i e le odopa he apy. 3.00 (0.60) 37 Acco ding o he exis ing e idence, opini ole would be ela ed o highe nausea and dizziness a es compa ed o o he DA d ugs. 3.00 (0.74) 38 Lowe limb oedema in pa ien s on DA ea men is ela ed o specific p edisposing isk ac o s such as pa ien gende and DA ea men du a ion. 3.18 (1.11) 39 Lowe limb oedema is no clea ly ela ed o any pa icula ype o DA d ug. 3.82 (0.94) 40 A swi ch o DA d ug could be conside ed i lowe limb oedema appea s as a side e ec . 3.64 (0.64) 41 Dompe idone could be used o nausea p e en ion. 4.64 (0.48) 42 Dompe idone can inc ease he elec oca diog am QTc in e al, so i should be used wi h cau ion and empo a ily. 4.45 (0.5) 43 O hos a ic hypo ension is no clea ly ela ed o DA use. 2.64 (1.49) DA: dopamine agonis ; PD: Pa kinson’s disease. 176 Neu ología 40 (2025) 171—181 Table 4 Dopamine agonis s in specific clinical scena ios. Mean (SD) A) ICD 44 The diagnosis o ICD could be unde es ima ed in cases o unawa eness om ela i es. 4.91 (0.29) 45 The diagnosis o ICD may di e depending on he clinime ic p ope ies o he di e en a ailable diagnosis scales. 4.91 (0.29) 46 The p esence o dep ession ac s as a p emo bid isk ac o o su e ing an ICD wi h he use o DA. 4.45 (0.78) 47 In pa ien s wi h p emo bid isk ac o s o an ICD, he use o DA d ugs should be a oided. 4.27 (0.75) 48 The dose o DA ea men is associa ed wi h he isk o an ICD. 4.45 (0.5) 49 Le odopa ea men and dose influence he genesis o ICD. 3.82 (0.83) 50 No all DA d ugs ha e he same isk o being associa ed wi h an ICD. 3.73 (0.86) 51 AD ea men s p esen a di e en isk o inducing an ICD depending on hei elease o mula. 3.00 (0.95) 52 Ro igo ine ea men could be associa ed wi h less isk o de eloping an ICD. 3.82 (0.57) 53 Apomo phine has a lowe isk o being associa ed wi h an ICD compa ed o o al o ansde mal DA d ugs. 4.00 (0.60) 54 The dose o he DA should be educed in he p esence o a mild ICD. 3.73 (0.75) 55 A swi ch o DA could be conside ed i he ICD is mild o mode a e. 2.82 (0.94) 56 The dose o he DA should be educed in he e en o a mode a e-se e e ICD. 4.00 (1.18) 57 The DA ea men should be wi hd awn i pa ien s de elop a mild ICD. 2.91 (0.79) 58 The DA should be wi hd awn in he e en o a mode a e-se e e ICD. 4.55 (0.66) 59 In cases o mode a e-se e e ICD, he dose o le odopa should also be educed. 2.45 (0.5) 60 Scien ific e idence is lacking o ecommend he use o o he addi ional d ugs o he ea men o ICD. 4.27 (0.62) 61 In pa ien s wi h a his o y o ICD using DA ea men , he use o hese d ugs should be es ic ed in he u u e. 4.45 (0.66) 62 In pa ien s wi h a his o y o ICD wi h o al o ansde mal DA, who a e candida es o second-line he apies, he use o con inuous in usion wi h subcu aneous apomo phine should be a oided. 3.09 (0.79) 63 Dopamine gic dys egula ion synd ome is mainly associa ed wi h he use o le odopa. 4.18 (0.83) B) DAWS 64 The e a e p emo bid ac o s ha p edic he appea ance o a DAWS. 4.09 (0.51) 65 In pa ien s in whom DA has been wi hd awn due o side e ec s, such as an ICD, i s ein oduc ion could be conside ed i hey ha e su e ed a DAWS. 3.82 (0.57) C) Sleep Diso de s 66 DA d ugs a e e ec i e in imp o ing sleep diso de s in PD pa ien s (noc u nal akinesia, agmen ed sleep, RLS) 4.45 (0.50) 67 Al hough o igo ine has mo e a o able scien ific e idence, o he DA he apies may be equally e ec i e in imp o ing sleep diso de s in pa ien s wi h PD. 4.00 (0.60) 68 DA d ugs ha e shown o be no e ec i e in ea ing REM sleep beha iou diso de in pa ien s wi h PD. 4.09 (0.67) 69 In case o d owsiness associa ed wi h a DA ea men , i may be help ul o swi ch he DA d ug, p e e ably o o igo ine. 3.45 (0.66) D) Cogni ion and beha iou 70 In a pa ien wi h PD and cogni i e impai men , i is ecommended o a oid he use o DA ea men s. 3.82 (0.72) 71 I is unnecessa y o a pa ien on DA ea men who de elops cogni i e impai men wi hou psycho ic symp oms o educe DA dose unless neu opsychia ic complica ions appea . 3.73 (0.86) 72 In pa ien s wi h PD olde han 80 yea s, wi hou cogni i e impai men , i is p e e able o a oid he use o DA. 4.00 (0.74) E) Miscellanous 73 The combina ion o 2 DA is no ecommended, excep o he addi i e use o apomo phine in pen o in usion. 4.55 (0.66) 177 D. San os Ga cía, J. Pagonaba aga Mo a, F. Escamilla Se illa e al. Table 4 (Con inued) Mean (SD) 74 In pa ien s using a diu nal apomo phine in usion pump, he concomi an use o a noc u nal DA ex ended- elease ea men may be help ul. 4.36 (0.48) 75 In pa ien s wi h PD on DA he apies who unde go deep b ain s imula ion he apy, i is ecommended no o educe he DA dose by mo e han 70% in he ea ly pos -su gical s ages in o de o a oid apa hy as a side e ec . 4.18 (0.39) 76 In pa ien s wi h PD who a e on Duodopa, DA d ugs may help ea non-mo o mani es a ions, such as sleep diso de s. 4.45 (0.50) DA: dopamine agonis ; DAWS: dopamine agonis wi hd awal synd ome: ICD: impulse con ol diso de s; PD: Pa kinson’s disease; REM: apid eye mo emen ; RLS: es less legs synd ome. 4-Dopamine agonis he apy in PD pa ien s wi h non-mo o symp oms PD pa ien s may expe ience di e en ypes o non-mo o symp oms, which can be ela ed o he disease p ope o he pha macologic d ugs adminis e ed. The non-mo o symp oms include a di e en ange o neu opsychia ic symp oms ha goes om anxie y, apa- hy, and mood diso de o cogni i e dys unc ion, hallucina ions, and o he psycho ic symp oms.13 Also, PD pa ien s migh ha e sleep diso de s, including insomnia, pa asomnias, and es less legs synd ome. Au onomic symp oms can also be p esen , including o hos a ic hypo ension, sexual dys unc ion, and cons ipa ion.13 On he o he hand, pa ien s on DA ea men migh de elop a wi h- d awal synd ome, especially i he d ug is apidly emo ed.14 The DA ea men wi hd awal usually includes psychological, au onomic, and mo o mani es a ions such as anxie y, panic a acks, dep es- sion, swea ing, omi ing, weakness, ins abili y, and DA d ug c a ing. These symp oms a e ypically e ac o y o o he an ipa kinsonian ea men s, including le odopa, and migh only be con olled by eplacing he specific DA wi hd awn d ug.15 Table 4 shows he expe s’ ag eemen on DA use in pa ien s wi h non-mo o symp oms o PD. Discussion The cu en ange o ea men op ions a ailable o idiopa hic PD is b oad, whe e ea men s a egy can be di ided in o pha macolog- ical, non-pha macological, and su gical he apy. Ou s udy used a nominal g oup echnique o help each an expe consensus ega d- ing he ad an ages and disad an ages o DA use in di e en clinical si ua ions. Tailo ing a ea men s a egy o indi idual pa ien s equi es ca e ul conside a ion o di e en ac o s, ha include he pa ien ’s symp oms, age, disease s age, unc ional disabili y, and li es yle. Unlike le odopa, he pha macological e ec s o he DA d ugs a e exe ed by hei di ec in e ac ion wi h he dopamine ecep o s and he e o e mimicking he endogenous dopamine. In e es ingly, DA ea men s can be used bo h a he ea ly s ages o he disease and in mo e ad anced s ages when pa ien s exhibi mo o and non- mo o complica ions. Fu he mo e, DA d ugs ha e all been shown o alue as mono he apy, ypically in pa ien s wi h ea ly disease cou se (s a emen 1). As a esul , i is commonly ecommended in daily p ac ice o use a minimum dose o le odopa o o delay i s ini ia ion un il pa ien s ha e symp oms ha in e e e wi h daily unc ion- ing o impai hei quali y o li e (s a emen 2). The e is limi ed in o ma ion ega ding head- o-head compa isons o he e ficacy o di e en DAs, showing no significan di e ence be ween each o he o only sligh supe io i y o one d ug o e ano he (s a emen 3). As a consequence, he DA d ug selec ed o ea a pa icula pa ien is usually based on conce ns ela ed o i s o mula ion, dos- ing equency, and cos .16,17 This can explain he b oad clinical si ua ions whe e DA he apies a e being p esc ibed, based mainly on he pa ien s’ and doc o s’ p e e ences. When planning a ailo ed ea men s a egy, clinicians should conside cogni i e s a us and enal unc ion in elde ly pa ien s (s a emen s 5-6), and d ug o mu- la ions (s a emen 7) in o de o imp o e ole ance and adhe ence. Also, di e en como bidi ies o he pa ien s can help he DA elec- ion a disease onse (s a emen s 9-10). Finally, all he non-e go DA d ugs can be associa ed wi h ICD, and i is ecommended o discuss his po en ial side e ec when p esc ibing hese d ugs (s a emen 11). The de elopmen o mo o fluc ua ions o e ime is a iable and mos ly depends on he p og essi e degene a ion o nig os ia al dopamine e minal, a he han he ini ial ea men s a egy.18 Fu he mo e, he e is inc easing e idence ha he choice and im- ing o ini ial he apy o PD, whe he le odopa, DA o MAO B inhibi o migh ha e a minimum impac on he long- e m p e a- lence o mo o fluc ua ions and dyskinesia.19 Ne e heless, a subs an ial p opo ion o pa ien s wi h PD migh de elop le odopa- ela ed mo o complica ions yea s a e s a ing le odopa.20 These complica ions include mo o fluc ua ions and di e en ypes o complex oscilla ions in mo o unc ion. In pa ien s expe iencing dyskinesias, adding a non-e go DA migh help o educe challeng- ing symp oms.5,21 In hose cases, such d ugs as opi inole, o igo ine o p amipexole can be all equally conside ed, p e e ably using an ex ended- elease o mula ions (s a emen s 15-17). Fu he , when used as an add-on, DA should be s a ed wi h a lowes dose and i a ed cau iously and s a ing wi h he lowes dose possible (s a e- men s 14, 18). Addi ionally, DA d ugs can help o imp o e non-mo o symp oms o PD (s a emen s 20-21). In pa ien s acing ad anced s ages o PD, apomo phine can also ha e a key ole in hei clinical managemen . Apomo phine is a non- e goline DA wi h a high a fini y o dopamine D 1-2 ecep o s.22 I has a simila e ficacy o le odopa in con olling mo o symp oms o PD, and i is p esc ibed o he con ol o mo o fluc ua ions. I is used subcu aneously bo h as an in e mi en injec ion o as con inuous in usion (s a emen s 24-27). Al hough apomo phine has a apid and sho onse o ac ion, a lowe isk o neu opsychia ic complica ions (s a emen 23), and a good ole abili y when i is used as a con inuous in usion, pa ien s and ca egi e educa ion migh be essen ial o i s co ec use (s a emen 28). E en hough DA he apy has an impo an ole in pa ien s wi h ad anced PD as a ea men o le odopa-induced mo o complica ions, i s use migh be associa ed wi h spe- cific complica ions (s a emen s 33-34). The spec um o side e ec s associa ed wi h DA migh be wide, and can ange om gas oin es inal discom o and lowe limb oedema o significan neu opsychia ic complica ions (s a emen s 39-41). Fo ins ance, DA d ugs a e mos commonly associa ed wi h he de elopmen o ICDs such as pa hological gambling, compulsi e sexual beha iou , o compulsi e shopping in up o 50% o pa ien s wi h long- e m use.23 Risk ac o s o i s de elopmen include male sex, younge age, a 178 Neu ología 40 (2025) 171—181 highe dose o DA, and p e ious his o y o ICD (s a emen s 44-48). Fu he mo e, dep ession could ac as a p emo bid isk ac o o su e ing an ICD wi h he use o DA (s a emen 46).24 Rega ding he DA ype, o igo ine and apomo phine could be associa ed wi h less isk o de eloping an ICD (s a emen s 50, 52-53). When an ICD is p esen , i is ecommended o ape he DA g adually in o de o imp o e he symp oma ology (s a emen s 54, 56, 58, 60).25 Highe doses o le odopa may be associa ed wi h a small inc ease in isk o ICD (s a emen 49).26 Mo eo e , al hough le odopa is conside ed he mos po en ig- ge o dopamine dys egula ion synd ome in PD (s a emen 63), subcu aneous apomo phine and o al DA may also be esponsible.27 I usually in ol es male pa ien s wi h ea ly-onse PD who ake inc easing quan i ies o dopamine gic d ugs, despi e ha ing se e e d ug- ela ed dyskinesia.28 Finally, DA should be a oided in elde ly adul s due o inc eased isk cogni i e impai men o in pa ien s wi h a his o y o ICD, demen ia, hype somnia, o hallucina ions (s a emen s 70-72). The limi a ions o his s udy a e ela ed o he ac ha i is based on expe opinion and au ho s we e challenged o each consensus on opics who migh ha e a limi ed esea ch backg ound. To add ess ha issue, he consensus g oup used he la ge backup panel o neu ologis s o gain consis ency and homogenei y. Also, i should be no ed ha au ho s and pa icipan s based hei opinion on local egula ions, and changes in sa e y ecommenda ions may no apply in di e en coun ies. Finally, ega ding he opics ha no eached expe consensus, au ho s belie es ha i is ela ed he clinical he e ogenei y ha clinicians mus usually ace in hei daily p ac ice, and consequen ly hose opics should be add essed in a pe sonalised app oach. Conclusion DA ep esen s an e ec i e op ion o ea PD and allow he use o lowe doses o le odopa he apy, pos poning hei po en ial side e ec s. In addi ion, DA migh also p o ide benefi s in mo e ad anced disease s ages by educing mo o fluc ua ions associa ed wi h he long- e m le odopa he apy. Ou wo k p o ides insigh s in o whe e DA e en ually fi in o he ea men schemes o PD in daily p ac ice. The conclusions de i ed om i ep esen an explo a o y s ep om which he ou comes should be used o guide u he quali a i e and quan i a i e esea ch designs.29 In any case, DA as a g oup, has been conside ed he mos po en ancilla y an ipa kinsonian medica ion a ailable.5 Conflic o in e es San os Ga cía D. has ecei ed hono a ia o educa ional p esen a- ions and ad ice se ice by Abb ie, UCB Pha ma, Lundbeck, KRKA, Zambon, Bial, I al a maco, Te a, A chímedes, Es e e, S ada, Me z, and g an s om he Spanish Minis y o Economy and Compe i i e- ness [PI16/01575] co- ounded by ISCIII (Concesión de sub enciones de P oyec os de In es igación en Salud de la con oca o ia 2020 de la Acción Es a égica en Salud 2017-2020 po el p oyec o ‘‘PROGRESIÓN NO MOTORA E IMPACTO EN LA CALIDAD DE VIDA EN LA ENFERMEDAD DE PARKINSON’’). Pagonaba aga Mo a J. has ecei ed hono a ia o educa ional p esen a ions and ad ice se ice by Abb ie, UCB Pha ma, Lundbeck, Zambon, Bial, and Es e e. Escamilla Se illa F. has ecei ed hono a ia o educa ional p e- sen a ions and/o ad ice se ice by Abb ie, Bial, Bos on Scien ific, Es e e, Med onic, S ada, UCB Pha ma and Zambon. Ga cía Ruiz P.J. has ecei ed pe sonal compensa ion as a consul- an /scien ific ad iso y boa d om I al a maco, B i annia, Bial, S ada and Zambon and speaking hono a ia om I al a maco, Bial, Zambon, Me z, Dyspo and Abb ie. In an e Cebe io J. has ecei ed hono a ia o educa ional p e- sen a ions and ad ice se ice om Abb ie, Zambon and Bial. Jaime Kulise sky Boja ski J. has no conflic s o in e es . Linazaso o C is óbal G. CEO, ounde and sha eholde o VIVE bio ech SL. He has ecei ed hono a ia o educa ional p esen- a ions, ad iso y se ice and pa icipa ion in esea ch p ojec s and clinical ials by No a is, UCB, Lundbeck, Bial, Abb ie, As a Médica, Te a, K ka, Med onic, Boeh inge , Sche ing, Pha macia, Lilly, Dupon , I al á maco, Alle gan, Ipsen, Me z, Zambón, Biogen, Roche, Genen ech and O yzon. Luquín Piudo M.R. has ecei ed hono a ia o educa ional p e- sen a ions and ad ice se ices by Abb ie, UCB Pha ma, Zambon, Bial, Es e e, and g an s om he Spanish Heal h Ins i u e Ca los III and Eu opean Commission. Ma ínez Cas illo J.C. has ecei ed g an s/ esea ch suppo om Alle gan, AbbVie, Bial, Ipsen, I al a maco, Me z, and Zambon ; hono a ia o consul a ion ees om Alle gan, AbbVie, Bial, Exel is, Ipsen, I al a maco, Me z, Ipsen, O ion, TEVA, UCB, and Zambon ; and company sponso ed speake ’s bu eau om Alle gan, AbbVie, Bial, K ka, Ipsen, I al a maco, Me z, TEVA, UCB, and Zambon. Jesús S. has ecei ed hono a ia om Abb ie, Zambon, Bial, I al a maco, Me z. She holds he g an ‘‘Acción B Clínicos- In es igado es (B-0007-2019)’’ om he ‘‘Conseje ía de Salud y Familias’’ and she ecei ed he g an PI21/01901 ounded by he ‘‘Ins i u o de Salud Ca los III’’. Vela Desojo L. has no conflic s o in e es . Campos Lucas F.J. has no conflic s o in e es . Caballe o Ma ínez F. has no conflic s o in e es . Pablo Mi P. has ecei ed suppo o a ending mee ings and/o a el o hono a ium o lec u ing om Abbo , Alle gan, Abb ie, Bial, B i annia, I al a maco, Me z, UCB, Te a, S ada and Zambon. Funding This s udy was unded by he Chai o Epilepsy and Mo emen Dis- o de s UFV-UCB. Acknowledgemen s We hank he neu ologis s who pa icipa ed in phase 1 o hei disin e es ed collabo a ion. We hank he Epilepsy and Mo emen Diso de s UFV-UCB Chai o suppo ing his ini ia i e. We hank I ene San ama ía o he F ancisco de Vi o ia Uni e si y o he echnical coo dina ion wo k o his s udy. Appendix A Panel o Expe s A aceli Alonso Cáno as1; José Ma ías A belo González2; Bego˜ na A es Pensado3; Asunción Á ila Ri e a4; Nu ia Caballol Pons5; MaTe esa Cáce es Redondo6; Víc o Manuel Cam- pos A illo7; Ma Ca mona Abellán8; Fá ima Ca illo Ga cía9; MaJosé Ca alán Alonso10; Es he Cubo Delgado11; Bea - iz De la Casa Fages12; Edua do de Pablo-Fe nández13; Se illa14; Madel Ca men Fe nández Mo eno15; Juan Ga - cía Calden ey16; Rocío Ga cia-Ramos17; Juan Ca los Gómez Es eban18; Jéssica González A du a19; Ja ie Gu ié ez Ga cía20; An onio Koukoulis Fe nández21; Monica Ku is U a22; Inés Lega da Ramí ez23; Luis Ja ie López del 179