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Transition from oxcarbazepine to eslicarbazepine acetate: A single center study

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Transition from oxcarbazepine to eslicarbazepine acetate: A single center study

Author: Mäkinen, Jussi,Rainesalo, Sirpa,Peltola, Jukka
Year: 2017
Source: https://trepo.tuni.fi/bitstream/10024/101565/1/transition_from_oxcarbazepine_2017.pdf
B ain and Beha io . 2017;7:e00634.  
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1 o 6
h ps://doi.o g/10.1002/b b3.634
wileyonlinelib a y.com/jou nal/b b3
Recei ed:2Decembe 2016
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Accep ed:12Decembe 2016
DOI:10.1002/b b3.634
ORIGINAL RESEARCH
T ansi ion om oxca bazepine o eslica bazepine ace a e: A
single cen e s udy
Jussi Mäkinen1 | Si pa Rainesalo1 | Jukka Pel ola2
Thisisanopenaccessa icleunde  he e mso  heC ea i eCommonsA ibu ionLicense,whichpe mi suse,dis ibu ionand ep oduc ioninanymedium,
p o ided heo iginalwo kisp ope lyci ed.
©2017TheAu ho s.B ain and Beha io publishedbyWileyPe iodicals,Inc.
1Depa men o Neu ology,Tampe e
Uni e si yHospi al,Tampe e,Finland
2Depa men o Neu ology,Uni e si yo 
Tampe eandTampe eUni e si yHospi al,
Tampe e,Finland
Co espondence
JussiMäkinen,Depa men o Neu ology,
Tampe eUni e si yHospi al,Tampe e,
Finland.
Email:Jussi.M[email p o ec ed]
Funding in o ma ion
Thiss udywassuppo edbyanun es ic ed
educa ionalg an awa dedbyEisaiL d
oUni e si yo Tampe e,Finlandandby
Compe i i eEVO-Fundingo Pi kanmaa
Hospi alRes ic .
Abs ac
Objec i es: The eislimi edclinicale idence o compa isonbe weenoxca bazepine
(OXC)andeslica bazepineace a e(ESL)in e mso  ole abili y,o how oexecu e he
change omOXC oESL.We epo  hep ocesso  ansi ioningpa ien swi h ocal
epilepsy omp e iousOXC ea men  oESLdue o ole abili yp oblems.The a ion-
ale o change omOXCis epo ed,and heou comewi h espec i e o his a ionale
isanalyzedin e mso  ole abili yande icacy.
Ma e ials and Me hods: Thesubjec swe e ansi ionedo e nigh  omOXC oESLin
ahospi alinpa ien se ing.Ane alua iono  hee ec so  he ansi ionwasmade
a e 1and3mon hs.Allad e see en s(AEs)we e eco ded ollowing he ansi ion
pe iod.Subjec swe eclassi iedbyou comein e mso AEs.
Resul s: Twen y- h eesubjec swe e ansi ioned omOXC oESL.Fi eenpa ien s
OXC- ela edAEs educedsigni ican lya e  ansi ion.Pa icula ly,mos o (93%) he
AEsp esen edin hemo ning esol eda e  ansi ion oESL.Nopa ien hadanin-
c easeinseizu e equency ollowing he ansi ion.Theincidenceo ESL- ela edAEs
was39%a 1mon hand13%a 3mon h ollow-up;howe e ,allpa ien scon inued
ESL h oughou  hes udype iod.
Conclusions: Thiss udydemons a es ha pa ien ssu e ing omOXC- ela edAEs
imp o ein e mso  ole abili ya e aswi ch oESLwi hmain ainingseizu econ ol.
Thisimp o emen ismo ep onouncedi  heOXC- ela edAEsa emos e iden  ol-
lowingmo ningdosingo OXC.T ansi ioncanbesa elyexecu edinanou pa ien 
se ing.
KEYWORDS
epilepsy,eslica bazepineace a e,oxca bazepine, ole abili y, ea men  ansi ion
1 | INTRODUCTION
Epilepsyhasanannualincidenceo abou 50pe 100,000andp e -
alence be ween 5 and 10 pe  1,000 (Sande , 2003). Mono he apy
wi hanan iepilep icd ug(AED)issu icien  oachie eseizu econ-
olwi hou in ole ablead e see en s(AEs)app oxima elyin60%o 
pa ien s(S ephen&B odie,2012).AEs ela ed oAEDsimpac nega-
i elyonheal h- ela edquali yo li e,causeasigni ican sou ceo dis-
abili y,andmaylead olowadhe ence o he ea men o  ea men 
discon inua ion(S ephen&B odie,2012).
Inadul s(>18yea s),o aleslica bazepineace a e(ESL)isapp o ed
in heEUasanadjunc i e he apywi hpa ialonse seizu eswi ho 
2 o 6
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MÄKINEN E al.
wi hou seconda ilygene aliza ionandin heUSasamono he apyo 
adjunc i e ea men o pa ial-onse seizu es(Ap iom®;Zebinix®).
ESLisa hi d-gene a ionmembe o  hedibenzazepine amily,which
alsoincludesca bamazepine(CBZ)andoxca bazepine(OXC;Kea ing,
2014; Zacca a, Gio anelli, Cinco a, & Ve o i, 2015). Blockade o 
ol age-ga ed sodium channel (VGSC) is he p oposed mechanism
o ac ion o CBZ,OXC,andESL(Kea ing,2014),bu ESLhasbeen
shown oha eamodula ingac ionandinhibi s heslowac i a ion
o VGSC(Hebeisene al.,2015)andalsoane ec onCa 3.2T- ype
Ca2+channels(Doese e al.,2015).ESLisap od ug ha isme abo-
lized o i s majo ac i eme aboli e eslica bazepine(S-lica bazepine)
and o hemino ac i eme aboli es(R)-lica bazepineandOXC,which
a emainlyelimina edby enalexc e ion(bo hunchangedandglucu o-
nideconjuga e o ms;Kea ing,2014).Hal -li e e minalelimina iono 
ESLinplasmaconcen a ions a iesbe ween20–24h allowingonce-
dailyadminis a ion egimen(Pe uccae al.,2011).Maximumplasma
concen a ions o  ESL we e eached in median 2.0–2.5h  (Almeida
&Soa es-Da-sil a,2004).S eadys a eis eachedin4–5days(Elge ,
Halász,Maia,Almeida,&Soa es-Da-sil a,2009).
Eslica bazepine ace a e is e icacious and well ole a ed as ad-
junc i e he apyind ug- esis an  ocalepilepsiesa doseso 800and
1,200mgonce-daily(Ben-Menacheme al.,2010;Elge e al.,2009;
Gil-Nagel, Lopes-Lima,Almeida, Maia,&Soa es-Da-sil a,2009; Gil-
Nagele al.,2013;Spe linge al.,2015).Dizziness, e igo,abno mal
coo dina ion, a axia, diplopia, a igue, somnolence, and headache
a emos o en epo edand equen AEsincon olledclinical ials
(Spe linge al.,2015)and oalesse deg eewhenusedas heonly
adjunc i eAED(Hol kamp,McMu ay,Bagul,Sousa,&Kockelmann,
2016).I wasno edinones udy ha swi ching omOXC oESL(dose
a io1:1)wasassocia edwi hbe e  ole abili ydu ingESL ea men 
(Villanue ae al., 2014).Recen me a-analysiscompa ed he ole a-
bili yo ESL,OXC,andlacosamide(LCM)showing ha pa ien swi h
OXCwi hd ew om he ea men mo e equen ly hanpa ien swi h
ESLo LCM (Zacca a,Gio anelli,Ma a ea, Fadda,&Ve o i,2013).
Fu he mo e,someside-e ec s(diplopia,a axia,abno malcoo dina-
ion)we esigni ican lymo e equen inOXC- ea edpa ien scom-
pa ed oESLandLCM.ESL- ela edhypona emia a ies om1.2% o
8.8%be weendi e en s udies(Halasze al.,2010; Hu nagele al.,
2013; Villanue a e al., 2014; Zacca a e al., 2013). The di e ence
canbeexplainedin e mso dosageused,popula ioncha ac e is ics,
and cu -o  used o de ine hypona emia. These da a sugges , ha 
ESLmigh sha esimila e icacycompa ed oOXC,bu wi hlessAEs.
Se e al dose-dependen  neu ological AEs occu  in e mi en ly and
appea almos alwaysa ewhou sa e OXCadminis a ion(S iano
e al.,2006).I seems easonable o ela eAEs oOXCpeakconcen-
a ion a he  han o heac i eme aboli eeslica bazepine,whichle -
elsinc easemo eslowly(Kea ing,2014).ESLisdi ec lyme abolized o
eslica bazepinewi hmino concen a ionso  -lica bazepineandOXC
(Almeida&Soa es-Da-sil a,2007).
A  p esen , he eis onlyone s udydocumen ing ha  o e nigh 
swi ch omOXC oESLseemed obesa eand esul insigni ican im-
p o emen sinAEs,quali yo li e,andale ness(Schmide al.,2016).
Howe e , ha s udy ocusedonacu ee ec s ollowing he ansi ion
lea inglong- e me ec so such ansi ion ela ed o ole abili yand
e icacys illunclea .
We p o ide 3mon h ollow-up da a when ansi ioning pa ien s
wi h ocalepilepsy omp e iousOXC ea men  oESLinas anda d-
izedclinicalse ing.The a ionale o change omOXCis epo ed,and
3mon hou comewi h espec i e o his a ionaleisanalyzedin e ms
o  ole abili y( hemainobjec i e)ande icacy( heseconda yobjec i e).
2 | MATERIAL AND METHODS
Weiden i iedall hepa ien s(agea leas 18yea s)wi h ocalepi-
lepsy ollowedin heDepa men o Neu ologyinTampe eUni e si y
Hospi al, Finland om he pa ien  egis y. Following inclusion c i-
e iawe eapplied:(1)cu en  ea men wi hOXC;(2)OXC- ela ed
mode a eo se e e ole abili yp oblemswhicha ec eddailyli e;(3)
ansi ion omOXC oESLwaspe o meddue oOXC- ela edAEs;
and (4) ansi ion was unde aken be o e 30 No embe  2015. The
dosageso concomi an AEDs emainedunchangeddu ing he ansi-
ionpe iod.Allsubjec swe eonimmedia e- eleaseOXCasex ended-
elease OXC is no  a ailable in Finland. In o ma ion on he pa ien 
cha ac e is icswasob ained e ospec i ely om hemedical eco ds.
Tole abili y p oblems ela ed o OXC we e ca ego ized as in e-
cen me a-analysis(Zacca ae al.,2013)add essingneu ologicalAEs
o  new gene a ion sodium-blocke s (somnolence, dizziness, e igo,
a axia/coo dina ion abno mal, diplopia, nys agmus, a igue, emo ,
headache, nausea, omi ing). Pa ien s we e classi ied acco ding o
ILAEguidelines o empo al, on al,pa ie al,occipi al,mul i ocal,o 
unclassi iable epilepsies based on seizu e cha ac e is ics, EEG and
imaging indingsand o somepa ien sonic al ideo-EEG eco dings
(CoCaTo ILA, 1989).Thee iologieswe edi idedin o emo esymp-
oma icandunknown.Theseizu e equency om hep e iousyea 
was eco ded;seizu e- eepa ien sdidno ha eanyseizu esdu ing
he p e ious yea . Re ac o y epilepsy was de ined as ha ing pe -
sis en seizu esa e  ialso a leas  woAEDswi hmaximally ole -
a eddoses(sequen iallyo incombina ion he apy).
Pa ien swe e ansi ionedo e nigh  omOXC oESLinahospi al
inpa ien se ingon hedayo a i aland hepa ien swe e ollowed
up o3mon hsbyclinicians.The a ge doseo ESLwascalcula ed
usinganOXC:ESLdose a io1:1dependingon hep e ansi ionOXC
dose.I  he1:1dose a iodidno co espond oanexac ESLdose,
hen hecloses lowe ESLdosewasused.Thelas in akeo OXCwas
hemo ningdose ollowedby he i s in akeo ESLin hee ening
o  hesameday.A e 1and3mon hsane alua iono  hee ec so 
he ansi ionwasmadein e mso  ole abili y,whichwasmainpu -
poseo  hiss udy.E icacyin e mso seizu echangewase alua ed
a 1and3mon hsa e  ansi ioning.AllAEsand hei in ensi y(mild,
mode a e,se e e)we e eco dedand epo ed ollowing he ansi-
ioningpe iod.Mildwasde inedasasymp omno in e e ingwi h
dailyac i i ies,mode a easin e e ingbu no p e en ingdailyli e
ac i i iesandse e easincapaci a inga leas pa o dailyac i i ies.
Pa ien swe edicho omiedbyou comein e mso AEsa e swi ched
omOXC oESL.
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Thiswasanonin asi e, e ospec i es udy,whichdoesno oblige
e hics commi ee app o al acco ding o Finnish Law on Resea ch.
Access opa ien  eco dsbasedondecisionmadebyHeado Science
Cen e,Tampe eUni e si yHospi al esea chandinno a ionse ices,
ScienceCen e .
3 | RESULTS
Weiden i ied23pa ien s,whowe e ansi ioned omOXC oESL
because o  OXC- ela ed AEs. Demog aphic and medical cha ac e -
is ico  he subjec s a e p esen ed in Table1. Th ee mos common
concomi an  AEDs we e le e i ace am, opi ama e, and clobazam.
AEs ela ed oOXCbe o e ansi ion oESLa edesc ibedinFigu e1.
Fi een(65.2%)pa ien sOXC- ela edAEs esol eda e  ansi iona 
3mon hs ollow-upand hiswas hecasein14pa ien sa 1mon h
ollow-up.Fu he mo e, he imingo  heAEso e  hedaywi h e-
spec  o hei  pe sis ency was analyzed and he esul s a e shown
inFigu e2.Two hi ds(66.5%)o  heAEsoccu edin hemo ning
andmos o  hem(93.4%) esol eda e  ansi ioning OXC oESL.
AEsp esen ingalldayo e ening ended obemo epe sis en a e 
ansi ion.
Themos in ole ablesingleOXC- ela edAEswe esomnolence,
dizziness, and diplopia. Fa ique, somnolence, emo , diplopia,
andnauseamos ly esol eda e  ansi ion.Aclea  endency ha 
someAEswouldha ebeenmo epe sis en  hano he s,especially
in he mo ning,wasno obse ed.Howe e ,dizziness and coo -
dina ion p oblems we e he commones AEs ha  pe sis ed a e 
ansi ion.
Thee ec so  he ansi ion omOXC oESLonseizu e equency
a e summa ized inTable2.AEs occu ing a e  ansi ion ela ed o
ESLa eshowninFigu e3.Theincidenceo AEswashighe a 1mon h
(39.1%[9/23]) hana 3mon h ollow-up(13.0%[3/23]).Howe e ,no
ea men discon inua ions occu edand all pa ien scon inuedESL
h oughou  hes udype iod.Mos o  heAEsa ibu ed oESLwe e
mildandsomemode a einin ensi y.Thedose-dependen inc easein
AEs equencywasno no iced.
Changes in seizu e equency o  du a ion we e no  obse ed
du ing he ansi ion pe iod in a hospi al inpa ien  se ing.Two pa-
ien s epo ed headache du ing he hospi aliza ion, bu  a  1 and
3mon h ollow-up hisAE was no  obse ed in hese pa ien s any
mo e.Noneo  hosepa ien swhohadAEsdu ing he ollow-updid
epo  ole abili yp oblemsdu ing hehospi aliza ion.
TABLE1 Demog aphicandmedicalcha ac e is icso  hepa ien s
Numbe o pa ien s 23
Sex
Female,N(%) 14(60.9)
Male,N(%) 9(39.1)
Meanage;yea s( ange) 41.8(22–69)
Meandu a iono epilepsy;yea s( ange) 14.4(2–62)
E iology
Remo esymp oma ic,N(%) 17(73.9)
Unknown,N(%) 6(26.1)
Re ac o yepilepsy,N(%) 18(78.2)
Seizu e equency
Seizu e ee(du ingp e iousyea ),N(%) 11(47.8)
Pe sis en seizu es,N(%) 12(52.2)
MeanOXCdose;mg/day( ange) 1,152(600–1,800)
FinalESLdose;mg/day( ange) 1,095(800–2,000)
Numbe o concomi an AEDs,N(%)
03(13.0)
19(39.2)
210(43.5)
31(4.3)
Numbe o p io AEDs,N(%)
13(13.0)
25(21.8)
36(26.1)
43(13.0)
≥5 6(26.1)
AEDs,an iepilep icd ugs;ESL,eslica bazepineace a e;OXC,oxca bazepine.
FIGURE1 Ad e se-e en s ela ed o
oxca bazepine.Oneo mo ead e se-e en 
canbep esen onasinglesubjec
0
10
20
30
40
50
60
Pe cen age (%)
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4 | DISCUSSION
Themainobjec i eo  hiss udy ansi ioningpa ien swi h ocalepi-
lepsy omOXC oESLdue o ypicalOXC- ela edAEswas oe alu-
a e he ole abili ydu ingsu icien lylong ollow-uppe iod.Ou s udy
demons a es ha pa ien sa is ac ionimp o edsigni ican lyin e ms
o  educedAEsa e swi ching omOXC oESLin65%o  hesub-
jec swi hou inc easeinseizu e equency.This indingissimila  oa
p e iouss udydemons a ing ha 15o 26pa ien swhowe e an-
si ioned omOXC oESLdue oOXC- ela edAEsnolonge hadAEs
a e  hechange(Villanue ae al., 2014). Fu he mo e, we showed
ha i  heOXC- ela edAEsa emos e iden in hemo ning( ollowing
mo ningdosing),nea lyallo  hem(93%)dissol eda e  ansi ion o
ESLindica inga ela ion oOXCpeakce eb ospinal luidandplasma
concen a ion as sugges ed ea lie  (Kea ing, 2014). These indings
migh helpclinicianine e ydayp ac ice oassesswhe he pa ien ’s
complain so neu ologicalAEs ela ed oOXC,especiallyincomplex
si ua ions; se e al AEDs, como bidi ies (e.g. dep ession, sleeping
p oblems)and,pe sis en seizu es.
Theseconda yobjec i ewas oassess he e icacyo ESL.The
esul s o  his s udy indica ed ha  when swi ched om OXC, ESL
wase ec i eandwell ole a eddu ing3mon hs ollow-up.Du ing
p e iousyea 12pa ien shadpe sis en seizu esanda e changing
omOXC oESLinonepa ien seizu e equency educedby50%
andinano he pa ien by30%.Mo eo e ,in wopa ien sseizu edu-
a ionsho enedwi hou changeinseizu e equency.Al oge he  ou 
pa ien so  12 achie ed educ ioninseizu e equency o du a ion.
Ne e heless, he ac  ha noneo  hepa ien shadinc easedseizu e
equencyisa leas asimpo an asseizu e educ ioninsmallp opo -
iono  hepa ien s.
Ea lie expe g oup′sopinionhypo hesized he emigh besi u-
a ionsinwhichi maybe easonable ocon e pa ien s omOXC
o ESL; mos  app op ia ely hosewho expe ience OXC- ela edAEs
o ha epoo compliancewi h wice-dailyOXCdosing(Pel olae al.,
2015).Recen s udybySchmide al.(2016)demons a ed ha o e -
nigh swi ching omOXC oESLwassa eandsuccess ulwi h ega d
oe icacyconce ning heacu eandimmedia ee ec son ole abili y
andseizu eissues.O he majo  indingis heabsenceo seizu e e-
la edo o he p oblemsdu ing he ansi ioninanyo ou pa ien s
which gi e added alue o he publica ion by Schmid e al. (2016).
Fu he mo e, we did no  ind any speci ic conce ns,why ansi ion
omOXC oESLshouldbedonenecessa ilyinaninpa ien se ingas
TABLE2 Thee ec o  ansi ion omoxca bazepine oeslica bazepineace a eonseizu e equencyin3mon h ollow-up
Pa ien
Baseline SF (p e ious
mon h) 1s mon h SF 2nd mon h SF 3 d mon h SF Ou come
1–11 Seizu e ee Noseizu es Noseizu es Noseizu es S illseizu e ee
12 1SGS,31SPS,4CPS 30SPS,3CPS 32SPS,4CPS 31SPS,6CPS Nosigni ican changeinSF
13 In equen seizu esaNoseizu es Noseizu es Noseizu es Nosigni ican changeinSF
14 1SGS,5CPS 2CPS Noseizu es 1CPS 50% educ ioninseizu e equency
15 1SPS,2CPS 2SPS,2CPS 1SPS,3CPS 1SPS,2CPS Nosigni ican changeinSF
16 83SPS,8CPS 84SPS,8CPS 83SPS,8CPS 83SPS,8CPS NochangeinSF
17 5CPS 4CPS 5CPS 6CPS NochangeinSF,seizu edu a ionsho ened
18 1CPS Noseizu es 1CPS Noseizu es 30% educ ioninseizu e equency
19 In equen seizu esbNoseizu es Noseizu es Noseizu es Nosigni ican changeinSF
20 5SPS,8CPS 5SPS,8CPS 8SPS,11CPS 7SPS,8CPS NochangeinSF,CPSseizu edu a ion
sho ened
21 1SGS,3SPS,1CPS 1SGS,3SPS,3
CPS
2SPS,2CPS 1SGS,3SPS,1
CPS
Nosigni ican changeinSF
22 2SGS,7CPS 3SGS,8CPS 2SGS,11CPS 3SGS,6CPS Nosigni ican changeinSF
23 1SGS,4CPS 1CPS 4CPS 2SGS,4CPS Nosigni ican changeinSF
CPS,complexpa ialseizu e;SF,seizu e equency;SGS,seconda ygene alized onic-clonicseizu e;SPS,simplepa ialseizu e.
a1SGSdu ingp e iousyea .
b1CPSdu ingp e iousyea .
FIGURE2 Diu nal a ia ionand3mon hou comeo 
oxca bazepine- ela edad e see en sa e  ansi ion o
eslica bazepineace a e
0
10
20
30
40
50
60
70
Mo ningE ening No diu nal a ia ion
Pe cen age (%)
Pe sis ed
Resol ed
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doneea lie inou cen e .T ansi ion omOXC oESLcanbesa ely
doneinanou pa ien se ing.
The ewe esligh di e enceshow hep omp swi ch omOXC o
ESLwasconduc edinou cen e incompa ison o hep e iouss udy
bySchmide al.(2016).In ha s udy helas in akeo OXCwas he
e eningdose ollowedby i s in akeo ESLin hee eningo nex day,
whe easinou cen e  helas in akeo OXCwas hemo ningdose
ollowedby he i s in akeo ESLal eadyin hee eningo  hesame
day.The ewe enodi e encesbe ween hese wos udies onhow
heini ia iono ESLwaspe o medin e mso  a ge dosingasbo h
s udiesaspi ed ousea a ioo 1:1o OXCandESL.
Conside ing he limi a ions, his was e ospec i e uncon olled
ollow-up s udy and he ela i e numbe  o  ou  pa ien  is no  high.
Howe e ,whenconside ing he esul sandconclusionseme ging om
ou s udy henumbe o pa ien sisjus i iedasi s’p esen  o m.The
mainconclusionis ha suchOXC- ela edneu ologicalside-e ec s ha 
appea a e inges iono  hemo ningdoseo OXCdisappea in he as 
majo i y(o e 90%)o  hepa ien swhensubs i u edwi hESL,whe eas
i  hesesymp omsexis ei he a e e eningdoseo wi hou diu nal a i-
a ion hesubs i u ionislesshelp ul.Thisassocia ionissos ong ha 
hecu en numbe o pa ien sissu icien  op o ide heconclusion.
Inconclusion,ou  indingssuppo  heno ion ha pa ien scu -
en ly ecei ingOXC andexpe iencingin ole ableAEsbene i  om
swi ching o ESL in o de  o main ain seizu e con ol and imp o e
AED ole abili y.Thisispa icula ly uei  heseAEsa emos e iden 
ollowingmo ningdosing.Ou da aalsosugges  ha  ansi ion om
OXC oESLcanbepe o medsa elyinanou pa ien se ingins ead
o o e nigh hospi aliza ion o cos e ec i enessandpa ien com o .
ACKNOWLEDGMENTS
All au ho s mee  he In e na ional Commi ee o  Medical Jou nals
Edi o s(ICMJE)c i e ia o au ho shipandha egi en inalapp o al
o hemanusc ip  obepublished.
CONFLICT OF INTEREST
JussiMäkinenhas ecei edsuppo  o  a elcong esses omBiogen-
Idec,Boeh inge -Ingelheim,Eisai,andO ionPha ma; ecei edspeake 
hono a ia om Boeh inge -Ingelheim; ecei ed esea ch und-
ing om Finnish Epilepsy Associa ion; and pa icipa ed in ad iso y
boa d o Eisai.Si paRainesalohas ecei edspeake hono a ia om
FennoMedical,O ionPha ma,UCBand ecei edsuppo  o  a el o
cong esses omAbb ieandUCB.JukkaPel olahaspa icipa edin
clinical ials o Eisai,UCB,andBial; ecei ed esea chg an s om
Eisai, Med onic, UCB, and Cybe onics; ecei ed speake  hono a ia
omCybe onics,Eisai,Med onic,O ionPha ma,andUCB; ecei ed
suppo  o  a el cong esses om Cybe onics, Eisai, Med onic,
andUCB;andpa icipa edinad iso y boa ds o Cybe onics,Eisai,
Med onic,UCB,andP ize .
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BIA-2093-301 In es iga o s S udy G oup. E icacy and sa e y o 
FIGURE3 Du a iono eslica bazepine
ace a e- ela edad e see en s
0
2
4
6
8
10
12
14
16
18
20
Headache Dia hea Somnolence NauseaVe igoDizziness Diplopia
Pe cen age (%)
3 mon hs 1 mon h

6 o 6
|
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