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Concomitant administration of a fully liquid ready-to-use DTaP-IPV-HB-PRP-T hexavalent vaccine with a meningococcal ACWY conjugate vaccine in toddlers

Vesikari, Timo,Borrow, Ray,Costa, Xavier Da,Thomas, Stephane,Eymin, Cecille,Boisnard, Florence,Lochart, Stephen

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Concomi an adminis a ion o a ully liquid eady- o-use DTaP-IPV-HB-PRP-T hexa alen accine wi h a meningococcal ACWY conjuga e accine in oddle s Timo Vesika i a , Ray Bo ow b , Xa ie Da Cos a c , S éphane Thomas d , Cécile Eymin d, ⇑ , Flo ence Boisna d d,1 , S ephen Lockha d,2 a Vaccine Resea ch Cen e , FM3/Bioka u 10, 33014 Uni e si y o Tampe e, Tampe e, Finland b Vaccine E alua ion Uni , Public Heal h England, Clinical Sciences Building 2, Manches e Royal In i ma y, Ox o d Road, Manches e M13 9WL, UK c Sano i Pas eu Inc., Global Clinical Immunology, PO Box 187, Disco e y D i e, Swi wa e , PA 18370-0190, USA d Sano i Pas eu MSD, 162 A enue Jean Jau es, 69367 Lyon Cedex 07, F ance a icle in o A icle his o y: Recei ed 4 Ap il 2018 Recei ed in e ised o m 2 Oc obe 2018 Accep ed 31 Oc obe 2018 A ailable online 22 No embe 2018 Keywo ds: Co-adminis a ion DTaP-IPV-HB-PRP-T MenACWY-TT Immunogenici y Sa e y Boos e accina ion abs ac In asi e meningococcal disease caused by Neisse ia meningi idis is a li e- h ea ening disease. Se e al coun- ies now include meningococcal se og oup C (MenC) conjuga e and, mo e ecen ly, a meningococcal se - og oup ACWY conjuga e (MenACWY) accina ion in hei na ional immuniza ion schedules. DTaP-IPV- HB-PRP-T is a hexa alen accine ha p o ides p o ec ion agains six diseases. The phase III, open-label, an- domised, mul icen e s udy en olled heal hy oddle s who ecei ed he DTaP-IPV-HB-PRP-T accine (a 2, 3 and 4 mon hs) wi ho wi hou a MenC accine (a 2 and 4 mon hs) in hep ima y se iess udy. A 12 mon hs o age, 312 oddle s we e andomised o ecei e DTaP-IPV-HB-PRP-T co-adminis e ed wi h MenACWY-TT accine (G oup A; n = 104); DTaP-IPV-HB-PRP-T accine alone (G oup B; n = 105); o MenACWY-TT accine alone (G oup C; n = 103). A 12 mon hs o age, he e we e no no able di e ences in e ms o an ibody pe - sis ence o any DTaP-IPV-HB-PRP-T accine an igen, whe he MenC-TT conjuga e accine was co- adminis e ed o no du ing he p ima y se ies. Following boos e accina ion, immune esponses o DTaP-IPV-HB-PRP-T and MenACWY-TT accines we e no a ec ed by co-adminis a ion. One mon h a e accina ion, he immune esponses elici ed by bo h accines we e high, whe he adminis e ed concomi- an ly o sepa a ely. The adminis a ion o MenC accine du ing in ancy did no p eclude he use o a MenACWY-TT accine o boos e accina ion. E en hough he eac ogenici y a e co-adminis a ion was somewha highe , he esul s o his s udy suppo he concomi an adminis a ion o he DTaP-IPV- HB-PRP-T accine wi h a MenACWY-TT conjuga e accine when gi en om 12 mon hs o age. The clinical ial egis a ion numbe s a e: clinical ial.go : NCT01839175; Eud aCT: 2012-005547-24. Ó2018 The Au ho s. Published by Else ie L d. Thisis an open access a icle unde he CC BY-NC-NDlicense (h p://c ea i ecommons.o g/licenses/by-nc-nd/4.0/). 1. In oduc ion In asi e meningococcal disease is a con agious and li e- h ea ening in ec ion caused by Neisse ia meningi idis, a G am- nega i e endo oxin-p oducing bac e ium known o i s abili y o cause epidemic disease [1,2]. Meningococcal disease occu s wo ldwide, wi h conside able geog aphical a iabili y in se og oup dis ibu ion [3,4]. Fa ali y a es o cases o in asi e meningococcal disease a e be ween 5% and 15%, wi h 20% o su - i o s su e ing pe manen sequelae including hea ing loss, neu- ological impai men , seizu es and in ellec ual disabili ies [5]. Se e al coun ies including he UK o me ly in oduced meningococcal se og oup C conjuga e (MenC) 3 accina ion and, mo e ecen ly, a meningococcal se og oup ACWY conjuga e h ps://doi.o g/10.1016/j. accine.2018.10.100 0264-410X/Ó2018 The Au ho s. Published by Else ie L d. 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/). ⇑ Co esponding au ho a : Campus Sano i Lyon, 14 Espace Hen y Vallée, 69007 Lyon, F ance. E-mail add esses: [email p o ec ed] (T. Vesika i), [email p o ec ed] (R. Bo ow), [email p o ec ed] (X. Da Cos a), [email p o ec ed] (S. Thomas), [email p o ec ed] (C. Eymin), [email p o ec ed] (F. Boisna d), [email p o ec ed] (S. Lockha ). 1 Cu en add ess: Campus Sano i Lyon, 14 Espace Hen y Vallée, 69007 Lyon, F ance. 2 Cu en add ess: P ize Vaccine Clinical R&D, Ho izon Building, Honey Lane, Hu ley SL6 6RJ, Uni ed Kingdom. 3 Abb e ia ions: AE, ad e se e en ; AESI, ad e se e en o special in e es ; aP, acellula pe ussis; AR, ad e se eac ion; CI, con idence in e al; CRF, case eco d o ms; D, diph he ia; FHA, ilamen ous haemagglu inin; GMC, geome ic mean concen a ion; GMT, geome ic mean i e; HB, hepa i is B; Hib, Haemophilus in luenzae ype b; IPV, inac i a ed polio i us; ISR, injec ion si e eac ions; LLOQ, lowe limi o quan i a ion; LLT, lowes le el e m; MedDRA Ò , Medical Dic iona y o Regula o y Ac i i ies; Men C, meningococcal se og oup C; MenACWY, meningococcal se og oups A, C, W and Y; NA, no applicable; PPS, pe -p o ocol se ; PRP, Haemophilus in luenzae ype b capsula poly ibosyl- ibi ol-phospha e; PT, pe ussis oxoid; SAE, se ious ad e se e en ; SAR, se ious ad e se eac ion; SBA, se um bac e icidal an ibody; T, e anus; TT, e anus oxoid. Vaccine 36 (2018) 8019–8027 Con en s lis s a ailable a ScienceDi ec Vaccine jou nal homepage: www.else ie .com/loca e/ accine (MenACWY) accina ion, in o hei na ional immunisa ion sched- ules [6]. The hexa alen diph he ia (D), e anus (T), acellula pe ussis (aP), inac i a ed polio i us (IPV), hepa i is B (HB), Haemophilus in luenzae ype-b (Hib) capsula poly ibosyl- ibi ol-phospha e (PRP) accine (DTaP-IPV-HB-PRP-T; Hexyon Ò , Hexacima Ò , Hex- axim Ò , Sano i Pas eu ; Lyon, F ance) is a ully liquid eady- o-use combina ion accine ha p o ides p o ec ion agains six diseases. A p ima y se ies accina ion s udy designed o assess he immuno- genici y and sa e y o DTaP-IPV-HB-PRP-T when adminis e ed con- comi an ly wi h a MenC accine du ing he i s yea o li e, and whe he concomi an adminis a ion has any impac on he immunogenici y and sa e y o ei he accine has al eady been pub- lished [7]. The da a p esen ed he e epo he immunogenici y esul s and sa e y indings om he boos e pa o he p e ious wo– h ee- ou mon h p ima y se ies s udy ha assessed he co– adminis a ion o a boos e dose o he DTaP-IPV-HB-PRP-T accine wi h a MenACWY- e anus oxoid (TT) accine. In his s udy a boos- e dose o a MenACWY accine ollowing a childhood MenC acci- na ion was es ed as accina ion wi h MenACWY is al eady (o likely o be in he nea u u e) he p e e ed ecommended immu- nisa ion schedule agains meningococcal diseases. 1.1. Objec i es The p ima y objec i e o his boos e pa o he p ima y s udy was o desc ibe he immunogenici y o a boos e dose o he DTaP- IPV-HB-PRP-T accine and a MenACWY-TT accine ei he co- adminis e ed a 12 mon hs o age o gi en sepa a ely. The seconda y objec i e was o desc ibe he an ibody pe sis- ence a 12 mon hs o age o he DTaP-IPV-HB-PRP-T accine ol- lowing a h ee–dose p ima y accina ion a wo, h ee and ou mon hs o age (p io o adminis a ion o a boos e dose). The sec- onda y objec i es included he desc ip ion o he sa e y o a boos- e dose o he DTaP-IPV-HB-PRP-T accine and MenACWY-TT accine ei he co–adminis e ed a 12 mon hs o age o gi en sepa- a ely. The s udy was desc ip i e; no o mal hypo heses we e es ed. 2. Ma e ials and me hods 2.1. S udy popula ion Heal hy oddle s who ecei ed h ee doses o he DTaP-IPV-HB- PRP-T accine in he p ima y se ies s udy we e eligible o en olmen . The main exclusion c i e ia we e: p e ious boos e accina ion agains diph he ia, e anus, pe - ussis, hepa i is B, poliomyeli is, Hib, o meningococcus wi h ei he he DTaP-IPV-HB-PRP-T accine o ano he accine p e ious (wi hin ou weeks) o planned accina ion du ing s udy pa icipa ion, any his o y o diph he ia, e anus, pe ussis, poliomyeli is, hep- a i is B, Hib o meningococcal se og oup A, C, W o Y in ec ion (s) con i med ei he clinically, se ologically o mic obiologically known o suspec ed con aindica ion(s) o any o he s udy accines hype sensi i i y o alle gy o componen s o he s udy accines  eceip o an icoagulan s in he p e ious h ee weeks, con- aindica ing in amuscula injec ion  eceip o high doses o sys emic co icos e oid he apy o o he immunosupp essi e he apy in he p e ious h ee mon hs any ecen his o y o ch onic disease o medical condi ion likely o in e e e wi h he ial assessmen s. 2.2. Vaccines and accina ions All accines we e adminis e ed acco ding o hei espec i e summa ies o p oduc cha ac e is ics [8–12]. The hexa alen DTaP-IPV-HB-PRP-T accine (0.5 mL; ba ch numbe : S4370) and/ o MenACWY-TT accine (0.5 mL; Nimen ix Ò manu ac u ed by GlaxoSmi hKline Biologicals SA; ba ch numbe : A90CA032A) we e adminis e ed in amuscula ly in he an e ola e al aspec o he igh high. NeisVac-C Ò (Bax e AG; ba ch numbe : VNS1M04C) and P e ena 13 Ò (P ize ; ba ch numbe : G40914) wi h o wi hou measles, mumps and ubella accine (li e) (M-M-R axP o Ò ; Me ck Sha p & Dohme Co po a ion; ba ch numbe : J011869) we e admin- is e ed 5 cm apa in he le high. Fu he de ails o he accines used a e p o ided in Supplemen- a y Da a 1. The adminis a ion o MenACWY-TT was pe o med ei he a leas one mon h be o e (G oup C; con ol g oup o MenACWY-TT accine), o concomi an ly wi h (G oup A; es g oup), a TT-con aining DTaP-IPV-HB-PRP-T accine. As adminis- a ion o MenACWY-TT one mon h a e a TT-con aining accine was no ecommended, and as Nimen ix did no ha e any co- adminis a ion labelling claim wi h P e ena 13, MenC-TT accine was adminis e ed ins ead o MenACWY-TT accine o subjec s in G oup B (con ol g oup o he DTaP-IPV-HB-PRP-T accine) a app oxima ely 13 mon hs o age o ensu e p o ec ion agains MenC se og oup. 2.3. S udy design This phase III, open-label, andomised, mul icen e s udy (clin- ical ial.go : NCT01839175; Eud aCT: 2012-005547-24) was con- duc ed a 11 accine esea ch clinics in Finland. The andomisa ion was s a i ied by g oups om he p ima y se ies (i.e., G oup 1: DTaP-IPV-HB-PRP-T accine co-adminis e ed wi h MenC accine; G oup 2: DTaP-IPV-HB-PRP-T accine wi hou MenC-TT accine). Pa icipan s en olled in he boos e phase we e andomly assigned in a 1:1:1 a io o one o h ee accina ion g oups i espec i e o hei p ima y se ies en olmen g oup. In G oup A, pa icipan s ecei ed a dose o DTaP-IPV-HB-PRP-T ac- cine wi h a dose o MenACWY-TT accine a app oxima ely 12 mon hs o age, and 28–42 days la e hey ecei ed a dose o P e ena 13 (i.e., a app oxima ely 13 mon hs o age). In G oup B, pa icipan s ecei ed a dose o DTaP-IPV-HB-PRP-T accine a app oxima ely 12 mon hs o age, and doses o MenC-TT accine and P e ena 13 a app oxima ely 13 mon hs o age. In G oup C, pa icipan s ecei ed a dose o MenACWY-TT accine a app oxi- ma ely 12 mon hs o age, and a dose o he DTaP-IPV-HB-PRP-T accine plus a dose o P e ena 13 a app oxima ely 13 mon hs o age. All pa icipan s we e o e ed an op ional dose o M-M- R axP o a app oxima ely 13 mon hs o age. The ial was conduc ed in acco dance wi h applicable local and na ional equi emen s and guidelines, he In e na ional Council o Ha monisa ion o Technical Requi emen s o Pha maceu icals o Human Use, Good Clinical P ac ice s anda ds, he E hical P inciples o Medical Resea ch In ol ing Human Subjec s o he Wo ld Med- ical Associa ion, and he Decla a ion o Helsinki. The pa en (s) o legal gua dian(s) o he pa icipa ing child en p o ided w i en in o med consen p io o inclusion in he boos e pa . 2.4. Immunogenici y measu emen s Se ology es s o DTaP-IPV-HB-PRP-T accine an igens and MenC/MenACWY-TT accine an igens we e pe o med by wo di - e en labo a o ies: Public Heal h England’s Vaccine E alua ion Uni (Manches e , UK) o MenC, MenA, MenW and MenY; and he Global Clinical Immunology pla o m (Sano i Pas eu Inc., 8020 T. Vesika i e al. / Vaccine 36 (2018) 8019–8027 Swi wa e , PA, USA) o pe ussis, hepa i is B, Hib, diph he ia ox- oid, e anus oxoid, and inac i a ed polio i us an igens. Labo a o y s a we e blinded o he g oup o which pa icipan s we e andomised. The se ological analyses we e pe o med as desc ibed in he p i- ma y se ies a icle [7]. The immunogenici y assessmen s used o he DTaP-IPV-HB-PRP-T accine we e consis en wi h hose used du ing he clinical de elopmen plan wi h ega ds o he assays used, he endpoin s analysed, and he iming o he se ology assessmen . The meningococcal se og oup A, W and Y an ibodies we e es ed by he modi ied se um bac e icidal an ibody (SBA) assay wi h baby abbi complemen , as p e iously desc ibed by Maslanka e al. [13]. Blood samples o app oxima ely 5 mL each we e collec ed be o e and one mon h a e he boos e accina ion (a 13 mon hs o age). The an ibody co ela es o p o ec ion o each accine an i- gen we e as desc ibed o he p ima y se ies, wi h he addi ion o meningococcal se og oup A, W and Y endpoin s (SBA i e 8). 2.5. Sa e y assessmen s Sa e y and ole abili y o ela ed se ious ad e se e en s (SAEs), dea hs and ad e se e en s o special in e es (AESIs) we e moni- o ed be ween he end o he p ima y se ies s udy and boos e ac- cina ion day (a app oxima ely 12 mon hs o age). Wi hin 30 min o boos e accina ion, in es iga o s moni o ed pa icipan s o unsolici ed (spon aneously epo ed) sys emic ad e se e en s (AEs) o SAEs. A dia y ca d was p o ided a app oxima ely 12 mon hs o age (boos e accina ion day, day 0) ha pa icipan s’ pa en s o legal gua dians used on days 0–7 o eco d solici ed injec ion-si e ad e se eac ions (injec ion-si e e y hema, injec ion-si e pain, injec ion-si e swelling) and solici ed sys emic ad e se eac ions (py exia, omi ing, c ying, somnolence, ano exia and i i abili y). Unsolici ed injec ion-si e eac ions and sys emic AEs we e eco ded on days 0–30. Pa en s o legal gua dians eco ded he s a , end and in ensi y o any unsolici ed e en s; he in es iga o assessed he ela ionship o hese e en s o he accina ion. Se i- ous AEs, including dea hs, and AESIs we e eco ded om app oxi- ma ely 12 o 13 mon hs o age. Fo child en andomised o G oup C, a elephone con ac was made a app oxima ely 14 mon hs o age o collec any ele an sa e y in o ma ion. 2.6. S a is ical me hods 2.6.1. Sample size Sample size o he p ima y se ies was de e mined as p e i- ously epo ed [7]. The maximum numbe o pa icipan s in he p ima y se ies was expec ed o be 350; all child en who ecei ed h ee doses o he DTaP-IPV-HB-PRP-T accine we e o be in i ed o pa icipa e in he boos e s udy. We es ima ed ha a pa icipa- ion a e in he boos e phase o 70–85% would esul in 245–298 pa icipan s being e aluable o he p ima y analysis. Wi h a sam- ple size o 80 e aluable pa icipan s pe g oup, he hal -wid h o he wo-sided 95% con idence in e al (CI) should no exceed 10% o obse ed esponse a es abo e 80%. 2.6.2. Analyses Desc ip i e s a is ics we e used o he immunogenici y and sa e y analyses. The andomised se was de ined as all andomised subjec s in he boos e pa o he s udy. The pe sis ence analysis was pe o med on he pe sis ence analysis se (all child en an- domised and who p o ided a blood sample on boos e accina ion day). The pos -boos e immunogenici y p ima y analyses we e pe - o med on he pe -p o ocol se (PPS; andomised pa icipan s excluding hose wi h p o ocol de ia ion(s) ha could in e e e wi h he immunogenici y e alua ion). The ull analysis se s (all andomised pa icipan s who ecei ed a leas one dose o he s udy accines and who had any pos - accina ion immunogenici y da a) we e used o suppo i e analyses. Sa e y analyses we e desc ibed o all pa icipan s wi h sa e y ollow-up da a who ecei ed a leas one dose o s udy accine(s) (sa e y analysis se ). S a is ical analyses we e pe o med using SAS Ò so wa e e - sion 9.1.3 (SAS Ò Ins i u e Inc., Ca y, NC, USA). 3. Resul s 3.1. Demog aphic and o he baseline cha ac e is ics A 12 mon hs o age, 312 oddle s (mean age 376.5 days; ange: 366–415 days) p e iously p imed a wo, h ee and ou mon hs o age wi h DTaP-IPV-HB-PRP-T accine wi h o wi hou MenC-TT accine we e andomised as ollows: 104 oddle s ecei ed DTaP-IPV-HB-PRP-T co-adminis e ed wi h MenACWY-TT (G oup A) 105 oddle s ecei ed DTaP-IPV-HB-PRP-T alone (G oup B) 103 oddle s ecei ed MenACWY-TT alone (G oup C). Demog aphic and baseline cha ac e is ics we e simila ac oss he h ee g oups in e ms o age, e hnic o igin and empe a u e in he o e all andomised se (Table 1). The pa icipan disposi ion is summa ised in Fig. 1. In he PPS, demog aphic and baseline cha - ac e is ics we e simila ac oss he g oups. 3.2. P e-boos e an ibody pe sis ence o DTaP-IPV-HB-PRP-T accine an igens (pe sis ence analysis se ) Following he h ee-dose p ima y accina ion se ies a wo, h ee and ou mon hs o age, no no able di e ences we e obse ed a 12 mon hs o age be ween G oup 1 (DTaP-IPV-HB-PRP-T accine co-adminis e ed wi h he MenC-TT accine) and G oup 2 (DTaP- IPV-HB-PRP-T accine wi hou MenC-TT accine) in e ms o an i- body le els o he di e en DTaP-IPV-HB-PRP-T accine an igens, wi h he excep ion o he p opo ion o pa icipan s wi h an an i- T concen a ion 0.10 IU/mL, which was highe in G oup 1 e sus G oup 2 (100%, 95% CI: 97.6; 100.0, and 92.0%, 95% CI: 86.4; 95.8, espec i ely) (Table 2). A 12 mon hs o age, he e we e no no able di e ences in geo- me ic mean concen a ions (GMCs) o i es (GMTs) be ween G oup 1 and G oup 2 o any DTaP-IPV-HB-PRP-T accine an igen wi h he excep ion o an i-T GMC, which was signi ican ly highe in G oup 1 e sus G oup 2 (0.61, 95%CI: 0.55; 0.68, and 0.34, 95% CI: 0.29; 0.39, espec i ely) (Supplemen a y Da a 2). 3.3. Pos -boos e an ibody esponse o DTaP-IPV-HB-PRP-T accine an igens (PPS) One mon h a e he boos e dose, no no able di e ences we e obse ed be ween G oup A (DTaP-IPV-HB-PRP-T wi h MenACWY- TT) and G oup B (DTaP-IPV-HB-PRP-T alone) in e ms o se op o- ec ion a es (G oup A: 97.7–100%; G oup B: 98.9–100%) o any DTaP-IPV-HB-PRP-T accine an igen (PPS) (Table 3). The p opo ions o pa icipan s wi h an i-D concen a- ion 1.0 IU/mL and an i-T concen a ion 1.0 IU/mL we e also high and compa able in bo h g oups. Fo pe ussis an igens, he p opo ion o pa icipan s wi h accine esponse ( om p e- accina ion [p e-dose 1] o pos -boos e ) o pe ussis oxoid T. Vesika i e al. / Vaccine 36 (2018) 8019–8027 8021 and ilamen ous haemagglu inin we e 98.8% and 100%, espec- i ely, in bo h G oup A and G oup B. The p opo ion o pa icipan s wi h a ou - old- ise om p e- accina ion (p e-dose 1) o pos - boos e o pe ussis oxoid and ilamen ous haemagglu inin we e espec i ely 83.5% and 96.5% in G oup A, and 88.4% and 92.1% in G oup B. The e we e no no able di e ences in GMCs/GMTs o any DTaP- IPV-HB-PRP-T accine an igen be ween G oup A and G oup B excep o an i-IPV3 GMT and an i-PRP GMC, which ended o be highe in G oup B bu deemed no o be clinically signi ican (Table 3). Compa able esul s o se op o ec ion a es/ esponse a es and GMCs/GMTs we e obse ed in he ull analysis se DTaP-IPV-HB-PRP-T. 3.3.1. An ibody esponse o MenACWY-TT accine an igens (PPS) In he PPS, one mon h a e accina ion no no able di e ences we e obse ed be ween G oup A (DTaP-IPV-HB-PRP-T wi h MenACWY-TT) and G oup C (MenACWY-TT alone) in e ms o se o- p o ec ion a es o any meningococcal se og oup. The p opo ion o pa icipan s wi h an an ibody i e 8 (1/dil) was high in bo h g oups, anging om 98.9 o 100% in G oup A, and 95.7 o 100% in G oup C (Table 4). The e we e no no able di e ences in GMTs be ween G oup A and G oup C o any meningococcal an igen excep o MenA SBA GMT, which ended o be highe in G oup C (Table 4). Fo bo h G oup A and G oup C, he subg oup o pa icipan s who had p e i- ously ecei ed he MenC accine du ing he p ima y se ies pa (G oup 1) displayed highe an i-MenC GMTs e sus he subg oup o pa icipan s who did no (G oup 2) (da a no shown). 3.4. Sa e y The sa e y p o ile o he DTaP-IPV-HB-PRP-T accine was gene - ally compa able whe he co-adminis e ed wi h MenACWY-TT ac- cine o no (Table 5). O e all, mos o he pa icipan s epo ed AEs occu ing wi hin 30 days a e accina ion: 94.2% in G oup A (DTaP-IPV-HB-PRP-T wi h MenACWY-TT), 92.4% in G oup B (DTaP-IPV-HB-PRP-T alone), and 87.4% in G oup C (MenACWY-TT alone). Two pa icipan s (0.6% o all pa icipan s), one in G oup A (1.0%) and one in G oup B (1.0%), expe ienced an immedia e unso- lici ed AE a e he boos e – g ade 1 u ica ia and g ade 2 dia - hoea, espec i ely – bo h conside ed by he in es iga o o be ela ed o he s udy accines. Solici ed injec ion si e eac ions wi hin se en days a e DTaP- IPV-HB-PRP-T accina ion we e epo ed by 66.0% o subjec s in G oup A, and 60.0% o subjec s in G oup B. Solici ed injec ion si e eac ions wi hin se en days a e MenACW-TT accina ion we e epo ed by 47.6% o subjec s in G oup A, and 32.0% o subjec s in G oup C, and injec ion si e pain was epo ed mo e equen ly in G oup A (46.6% e sus 17.5%). G ade 3 in ensi y eac ions we e obse ed in 11% in G oup A and 1% in G oup C. Nea ly all solici ed injec ion si e eac ions occu ed be ween day 0 and day 3 ollowing accina ion, and las ed no mo e han h ee days (Table 5). The de ails o he in ensi y scales used o sa e y pa ame e s a e shown in Supplemen a y Da a 3. The equency o solici ed sys emic eac ions was highe in G oup A e sus G oup C o c ying, i i abili y, py exia and somno- lence ( espec i ely: 50.5% e sus 30.1%; 76.7% e sus 48.5%; 30.1% e sus 10.7%; and 52.4% e sus 32.0%). No no able di e ences we e obse ed be ween G oup A and G oup C in equencies o eac ions o G ade 3 in ensi y. Py exia o g ade 3 in ensi y (>39.5 °C) was epo ed by ou pa icipan s: wo who ecei ed DTaP-IPV-HB- PRP-T and MenACWY-TT accine concomi an ly; one who ecei ed DTaP-IPV-HB-PRP-T accine alone; and one who ecei ed MenACWY-TT accine alone. One AESI was epo ed du ing he boos e phase, a se ious eb ile con ulsion ela ed o pneumonia caused by espi a o y syncy ial i al in ec ion epo ed 24 days a e adminis a ion o MenACWY-TT accine alone. The numbe o SAEs epo ed was Table 1 Demog aphy and o he baseline cha ac e is ics ( andomised se ). G oup A DTaP-IPV-HB-PRP-T wi h MenACWY (N = 104) G oup B DTaP-IPV-HB-PRP-T alone (N = 105) G oup C MenACWY-TT alone (N = 103) To al (N = 312) Age (days) a accina ion n 104 105 103 312 Mean (SD) 375.8 (8.8) 376.8 (9.4) 376.8 (9.2) 376.5 (9.1) Median 373.0 374.0 374.0 373.0 Min; max 366; 406 366; 415 366; 410 366; 415 Sex n 104 105 103 312 Female, n (%) 49 (47.1) * 54 (51.4) * 46 (44.7) * 149 (47.8) * Male, n (%) 55 (52.9) * 51 (48.6) * 57 (55.3) * 163 (52.2) * E hnic o igin n 104 105 103 312 Asian, n (%) 0 1 (1.0) * 0 1 (0.3) * Black, n (%) 1 (1.0) * 0 0 1 (0.3) * Caucasian, n (%) 96 (92.3) * 100 (95.2) * 95 (92.2) * 291 (93.3) * O he , n (%) 7 (6.7) * 4 (3.8) * 8 (7.8) 19 (6.1) * Tempe a u e (°C) n 104 105 103 312 Mean (SD) 36.6 (0.6) 36.6 (0.6) 36.6 (0.6) 36.6 (0.6) Median 36.6 36.6 36.6 36.6 Min; max 35.3; 37.9 35.4; 37.8 35.1; 37.7 35.1; 37.9 Disposi ion o subjec s acco ding o g oups in he p ima y se ies y Hexa alen co-adminis e ed wi h MenC (G oup 1), n (%) 53 (51.0) * 52 (49.5) * 51 (49.5) * 156 (50.0) * Hexa alen wi hou MenC (G oup 2), n (%) 51 (49.0) * 53 (50.5) * 52 (50.5) * 156 (50.0) * Abb e ia ions: aP, acellula pe ussis; D, diph he ia; HB, hepa i is B; IPV, inac i a ed polio i us; MenACWY, meningococcal se og oups A, C, W and Y; PRP, Haemophilus in luenzae ype-b capsula poly ibosyl- ibi ol-phospha e; SD, s anda d de ia ion; T, e anus; TT, e anus oxoid. * Pe cen ages a e based on he numbe o andomised subjec s. y Vaccines ac ually ecei ed du ing he p ima y se ies pa . 8022 T. Vesika i e al. / Vaccine 36 (2018) 8019–8027 low and none was conside ed o be ela ed o he s udy accines by he in es iga o . No AE leading o s udy discon inua ion du ing he boos e phase o he s udy we e epo ed du ing he cou se o ha pa o he s udy. 4. Discussion The esul s demons a e ha , one mon h a e accina ion wi h a boos e dose, he immune esponses elici ed by he DTaP-IPV- HB-PRP-T accine and he meningococcal se og oup ACWY Fig. 1. Disposi ion o pa ien s h ough he s udy. a Pa icipan s who ecei ed h ee doses o he DTaP-IPV-HB-PRP-T accine du ing he p ima y se ies pa . b One pa icipan andomised o G oup A (DTaP-IPV-HB-PRP-T accine co-adminis e ed wi h MenACWY-TT accine) had ecei ed he DTaP-IPV-HB-PRP-T accine p io o andomisa ion (and ecei ed he MenC accine a app oxima ely 13 mon hs o age). c One pa icipan was los o ollow-up a e accina ion a app oxima ely 12 mon hs o age, wi h no sa e y da a a ailable. T. Vesika i e al. / Vaccine 36 (2018) 8019–8027 8023 Table 3 Summa y o pos -boos e an ibody le els (A) and geome ic means o an ibody concen a ions o i es (B) o DTaP-IPV-HB-PRP-T accine an igens (PPS). G oup A Hexa alen co-adminis e ed wi h MenACWY (N = 87) G oup B Hexa alen alone (N = 91) A. Pos -boos e an ibody le els Componen Endpoin M * n (%) 95% CI M * n (%) 95% CI An i-D 0.10 IU/mL 87 87 (100.0) 95.8; 100.0 91 91 (100.0) 96.0; 100.0 1.0 IU/mL 87 78 (89.7) 81.3; 95.2 91 88 (96.7) 90.7; 99.3 An i-T 0.10 IU/mL 87 87 (100.0) 95.8; 100.0 91 91 (100.0) 96.0; 100.0 1.0 IU/mL 87 84 (96.6) 90.3; 99.3 91 88 (96.7) 90.7; 99.3 An i-IPV1 8 1/dil 87 86 (98.9) 93.8; 100.0 91 90 (98.9) 94.0; 100.0 An i-IPV2 8 1/dil 87 87 (100.0) 95.8; 100.0 91 91 (100.0) 96.0; 100.0 An i-IPV3 8 1/dil 87 87 (100.0) 95.8; 100.0 90 90 (100.0) 96.0; 100.0 An i-HBs 10 mIU/mL 87 86 (98.9) 93.8; 100.0 91 90 (98.9) 94.0; 100.0 100 mIU/mL 85 85 (97.7) 91.9; 99.7 91 87 (95.6) 89.1; 98.8 An i-PRP 0.15 mg/mL 87 87 (100.0) 95.8; 100.0 91 91 (100.0) 96.0; 100.0 1.0 mg/mL 87 85 (97.7) 91.9; 99.7 91 91 (100.0) 96.0; 100.0 An i-PT Vaccine esponse y 85 84 (98.8) 93.6; 100.0 86 85 (98.8) 93.7; 100.0 4- old inc ease à 85 71 (83.5) 73.9; 90.7 86 76 (88.4) 79.7; 94.3 An i-FHA Vaccine esponse y 85 85 (100.0) 95.8; 100.0 89 89 (100.0) 95.9; 100.0 4- old inc ease à 85 82 (96.5) 90.0; 99.3 89 82 (92.1) 84.5; 96.8 B. Pos -boos e GMTs/GMCs Componen M Geome ic mean (GMC/GMT) § 95% CI M Geome ic mean (GMC/GMT) § 95% CI An i-D (IU/mL) 87 3.07 2.49; 3.79 91 3.24 2.69; 3.91 An i-T (IU/mL) 87 6.89 5.78; 8.21 91 6.25 5.30; 7.37 An i-IPV1 (1/dil) 87 2174.05 1606.18; 2942.70 91 2040.21 1522.96; 2733.14 An i-IPV2 (1/dil) 87 1678.14 1203.60; 2339.77 91 1738.58 1242.59; 2432.56 An i-IPV3 (1/dil) 87 3086.91 2278.10; 4182.89 90 4127.67 3175.40; 5365.53 An i-HBs (mIU/mL) 87 2230.68 1597.48; 3114.87 91 2233.15 1597.30; 3122.13 An i-PRP (mg/mL) 87 22.70 17.20; 29.96 91 27.82 21.89; 35.35 An i-PT (EU/mL) 87 111.78 97.90; 127.63 91 114.72 102.68; 128.16 An i-FHA (EU/mL) 87 174.98 153.98; 198.86 91 184.57 162.43; 209.72 Abb e ia ions: CI, con idence in e al; D, diph he ia; FHA, ilamen ous haemagglu inin; GMC, geome ic mean concen a ion; GMT, geome ic mean i e; HBs, hepa i is B; IPV, inac i a ed polio i us; LLOQ, lowe limi o quan i a ion; MenACWY, meningococcal se og oups A, C, W and Y; PRP, Haemophilus in luenzae ype b capsula poly ibosyl- ibi ol-phospha e; PPS, pe -p o ocol se ; PT, pe ussis oxoid; T, e anus. * M: numbe o subjec s wi h a ailable da a. y Pe ussis accine esponse was de ined as: i p e- accina ion (p e-dose 1) an ibody concen a ion < 4 LLOQ, hen pos -boos e an ibody concen a ion 4LLOQ i p e- accina ion (p e-dose 1) an ibody concen a ion 4LLOQ, hen pos -boos e an ibody concen a ion > p e- accina ion an ibody concen a ion. à Inc ease om p e- accina ion (p e-dose 1) o pos -boos e . § GMCs o an i-D, an i-T, an i-HBs, an i-PRP, an i-PT, and an i-FHA; GMTs o an i-IPV1, an i-IPV2 and an i-IPV3. Table 2 Summa y o an ibody le els a 12 mon hs o age o all DTaP-IPV-HB-PRP-T an igens ollowing he h ee-dose p ima y accina ion (p e-boos e ) (pe sis ence analysis se ). G oup 1 (p ima y se ies pa ) DTaP-IPV-HB-PRP-T co-adminis e ed wi h MenC (N = 152) G oup 2 (p ima y se ies pa ) DTaP-IPV-HB-PRP-T wi hou MenC (N = 151) Componen Endpoin M * n (%) 95% CI M * n (%) 95% CI An i-D 0.01 IU/mL 151 148 (98.0) 94.3; 99.6 150 149 (99.3) 96.3; 100.0 0.10 IU/mL 151 62 (41.1) 33.1; 49.3 150 71 (47.3) 39.1; 55.6 An i-T 0.01 IU/mL 151 151 (100.0) 97.6; 100.0 150 150 (100.0) 97.6; 100.0 0.10 IU/mL 151 151 (100.0) 97.6; 100.0 150 138 (92.0) 86.4; 95.8 An i-IPV1 8 1/dil 151 122 (80.8) 73.6; 86.7 150 127 (84.7) 77.9; 90.0 An i-IPV2 8 1/dil 151 98 (64.9) 56.7; 72.5 150 114 (76.0) 68.4; 82.6 An i-IPV3 8 1/dil 150 123 (82.0) 74.9; 87.8 148 131 (88.5) 82.2; 93.2 An i-HB 10 mIU/mL 152 137 (90.1) 84.2; 94.4 151 138 (91.4) 85.7; 95.3 100 mIU/mL 152 72 (47.4) 39.2; 55.6 151 77 (51.0) 42.7; 59.2 An i-PRP 0.15 mg/mL 151 131 (86.8) 80.3; 91.7 150 116 (77.3) 69.8; 83.8 1.0 mg/mL 151 70 (46.4) 38.2; 54.6 150 71 (47.3) 39.1; 55.6 An i-PT LLOQ y 151 151 (100.0) 97.6; 100.0 148 147 (99.3) 96.3; 100.0 2LLOQ y 151 150 (99.3) 96.4; 100.0 148 147 (99.3) 96.3; 100.0 An i-FHA LLOQ y 151 151 (100.0) 97.6; 100.0 149 149 (100.0) 97.6; 100.0 2LLOQ y 151 151 (100.0) 97.6; 100.0 149 149 (100.0) 97.6; 100.0 Abb e ia ions: aP, acellula pe ussis; CI, con idence in e al; D, diph he ia; FHA, ilamen ous haemagglu inin; HB, hepa i is B; IPV, inac i a ed polio i us; LLOQ, lowe limi o quan i a ion; MenC, meningococcal se og oup C; PRP, Haemophilus in luenzae ype b capsula poly ibosyl- ibi ol-phospha e; PT, pe ussis oxoid; T, e anus. * M: numbe o subjec s wi h a ailable da a. y LLOQ = 2 EU/mL o PT and FHA. 8024 T. Vesika i e al. / Vaccine 36 (2018) 8019–8027 conjuga e accine, ei he co-adminis e ed a 12 mon hs o age, o when adminis a ion is s agge ed a di e en ime poin s, a e high o any accine an igen. O e all, concomi an adminis a ion o he DTaP-IPV-HB-PRP-T and MenACWY-TT accines did no a ec he immune esponse o ei he accine: he simila esponse a es and an ibody GMCs/ GMTs be ween he g oups a e suppo i e o concomi an adminis- a ion o he wo accines when gi en a 12 mon hs o age in heal hy oddle s. The se op o ec ion a es/ esponse a es and he an ibody GMCs/GMTs epo ed o he di e en an igens con ained in he DTaP-IPV-HB-PRP-T accine in he p esen s udy we e con- sis en wi h hose p e iously epo ed and/o summa ised o he accine used in boos e accina ion, i espec i e o he p ima y immunisa ion schedule o DTaP-IPV-HB-PRP-T (including a wo-, h ee-, ou -mon h schedule) [7,8,14–17]. Simila ly, he se op o- ec ion a es/ esponse a es and he an ibody GMTs epo ed o he meningococcal se og oup A, C, W and Y conjuga e accine an igens we e consis en wi h hose p e iously epo ed wi h he MenACWY-TT accine o he oddle popula ion [9], and when co-adminis e ed wi h he DTaP-IPV-HB-PRP-T accine In an ix Ò -hexa [18]. The immunogenici y assessmen used o he MenACWY-TT accine ( abbi SBA) was consis en wi h ha gene ally used o his ype o accine (including Nimen ix) [9,18–20]. Fu he mo e, he use o MenC accine in he p ima y se ies schedule did no p e- clude he use o MenACWY-TT o co-adminis a ion wi h a DTaP- IPV-HB-Hib boos e dose pos -boos e , and esponse a es/ an ibody GMTs we e high o all MenACWY an igens whe he MenC-TT accine was used in he p ima y se ies schedule o no . P io eceip o MenC-TT accine in he cu en s udy led o a highe GMT o MenC an igen, as p e iously documen ed [21]. An ibody pe sis ence a 12 mon hs o age agains he DTaP-IPV- HB-PRP-T accine an igens was simila be ween p ima y se ies g oups excep o highe an i-T an ibody le el in subjec s who had ecei ed bo h TT-con aining accines (DTaP-IPV-HB-PRP-T and MenC). A 12 mon hs o age, a high p opo ion o subjec s e ained an ibody le els associa ed wi h sho - e m p o ec ion ha a e consis en wi h hose p e iously obse ed a e a 2, 3 and 4 mon hs p iming [17] and equal o o highe han hose obse ed in a simila popula ion ecei ing wo-dose p iming a 3 and 5 mon hs o age [22]. This inding suppo s he adminis a ion o a boos e dose, as con i med by he subsequen obus pos - boos e esponse in all boos e g oups. The co-adminis a ion o he hexa alen DTaP-IPV-HB-PRP-T accine and o he MenACWY-TT conjuga e accine esul ed in highe eac ogenici y o many sys emic signs. The equency o injec ion si e ad e se eac ions epo ed in his p esen s udy o he MenACWY-TT accine was consis en wi h clinical ials da a epo ed in he Nimen ix summa y o p oduc cha ac e is- ics [9]. Table 4 Summa y o pos - accina ion an ibody le els (A) and geome ic means o an ibody i es (B) o MenACWY-TT accine an igens (PPS). G oup A Hexa alen co-adminis e ed wi h MenACWY (N = 87) G oup C MenACWY alone (N = 94) A. Pos - accina ion an ibody le els Componen Endpoin (1/dil) M * n (%) 95% CI M * n (%) 95% CI An i-MenA 8 87 87 (100.0) 95.8; 100.0 94 94 (100.0) 96.2; 100.0 An i-MenC 8 All subjec s 87 86 (98.9) 93.8; 100.0 94 90 (95.7) 89.5; 98.8 Subjec s who ecei ed he MenC accine in p ima y se ies pa y 43 43 (100.0) 91.8; 100.0 47 46 (97.9) 88.7; 99.9 Subjec s who did no ecei e any MenC accine in p ima y se ies pa à 44 43 (97.7) 88.0; 99.9 47 44 (93.6) 82.5; 98.7 128 All subjec s 87 85 (97.7) 91.9; 99.7 94 85 (90.4) 82.6; 95.5 Subjec s who ecei ed he MenC accine in p ima y se ies pa y 43 43 (100.0) 91.8; 100.0 47 46 (97.9) 88.7; 99.9 Subjec s who did no ecei e any MenC accine in p ima y se ies pa à 44 42 (95.5) 84.5; 99.4 47 39 (83.0) 69.2; 92.4 An i-MenW 8 87 87 (100.0) 95.8; 100.0 94 93 (98.9) 94.2; 100.0 An i-MenY 8 87 87 (100.0) 95.8; 100.0 94 94 (100.0) 96.2; 100.0 B. Pos -boos e GMTs Componen M Geome ic mean (GMT) 95% CI M Geome ic mean (GMT) 95% CI An i-MenA 87 4096.00 3335.98; 5029.17 94 5302.07 4249.49; 6615.38 An i-MenC All subjec s 87 693.03 524.15; 916.33 94 620.20 425.53; 903.94 Subjec s who ecei ed he MenC accine in p ima y se ies pa y 43 1262.73 901.11; 1769.46 47 1617.53 1083.22; 2415.39 Subjec s who did no ecei e any MenC accine in p ima y se ies pa à 44 385.59 264.11; 562.93 47 237.80 141.85; 398.66 An i-MenW 87 2148.28 1650.66; 2795.91 94 2555.07 1930.58; 3381.58 An i-MenY 87 1952.40 1538.58; 2477.53 94 2003.19 1592.49; 2519.81 Abb e ia ions: CI, con idence in e al; GMT, geome ic mean i e; MenACWY, meningococcal se og oups A, C, W and Y; PPS, pe -p o ocol se ; TT, e anus oxoid. * M: numbe o subjec s wi h a ailable da a. y Subjec s om G oup 1 in p ima y se ies: hexa alen accine co-adminis e ed wi h MenC accine. à Subjec s om G oup 2 in p ima y se ies: hexa alen accine wi hou MenC accine. T. Vesika i e al. / Vaccine 36 (2018) 8019–8027 8025 5. Conclusions Co-adminis a ion o DTaP-IPV-HB-PRP-T accine wi h MenACWY-TT accine did no a ec he immune esponse o ei he accine. P io eceip o MenC-TT conjuga e accine du ing in ancy did no p eclude he use o a MenACWY-TT accine o boos e accina ion and esul ed in highe esponses o MenC a e boos e . The immunogenici y and sa e y indings o his s udy suppo he concomi an adminis a ion o he DTaP-IPV-HB-PRP-T accine wi h a MenACWY-TT conjuga e accine when gi en om 12 mon hs o age, bu a highe sys emic eac ion a e a e con- comi an accina ion should be no ed. Acknowledgemen s The au ho s ake ull esponsibili y o he con en o his con i- bu ion and hank G aham Join o Syne com L d, Maccles ield, UK (suppo ed by Sano i Pas eu ) o p epa ing he manusc ip d a s. The au ho s would like o hank he pa icipa ing amilies, as well as he in es iga o s and hei s udy-si e pe sonnel, o hei con ibu ion o he s udy: Ani a Ahonen, Aino Fo s én, Tiina Haapaniemi, Tiina Ka ppa, Sa u Kokko, Tiina Ko honen, Pia-Ma ia Lage s om-Ti i, Ilkka Seppä and Iina Volanen. They would also like o hank: Xa ie Co nen and A melle Ma ais (Sano i Pas eu MSD) o hei con ibu ion o he conduc o he s udy; TFS In e - na ional AB o aking cha ge o he moni o ing o he s udy; Emilia Jo dano , Emmanuel Fe oldi and Emmanuel Vido (Sano i Pas eu ) o hei con ibu ion o he manusc ip e iew; Helen Findlow and Xilian Bai (Vaccine E alua ion Uni , Public Heal h Labo a o y, Manches e ) o meningococcal an ibody es ing; Monique B own and he GCI eam (Sano i Pas eu , Global Clinical Immunology pla - o m, Swi wa e , PA, USA) o p o iding immunogenici y da a o he hexa alen accine an igens. Disclosu es/con lic o in e es s a emen Timo Vesika i was lead in es iga o suppo ed by esea ch g an s. Ray Bo ow pe o med he MenACWY assays suppo ed by esea ch g an s. Xa ie Da Cos a was an employee o Sano i Pas- eu a he ime he s udy was conduc ed and holds company s ock and/o s ock op ions. Flo ence Boisna d, Cécile Eymin, S ephen Lockha and S éphane Thomas we e all Sano i Pas eu MSD employees a he ime he s udy was conduc ed. Table 5 Sa e y o e iew om app oxima ely 12 o 13 mon hs o age (sa e y analysis se ). G oup A DTaP-IPV-HB-PRP-T co-adminis e ed wi h MenACWY (N = 103) G oup B DTaP-IPV-HB-PRP-T alone (N = 105) G oup C MenACWY-TT alone (N = 103) Pe iod/pa icipan s wi h a leas one o he ollowing: n (%) 95% CI (pa icipan s) * n (%) 95% CI (pa icipan s) * n (%) 95% CI (pa icipan s) * AE wi hin 30 days a e any injec ion a app oxima ely 12 mon hs o age 97 (94.2) 87.8; 97.8 97 (92.4) 85.5; 96.7 90 (87.4) 79.4; 93.1 Immedia e unsolici ed AE 1 (1.0) <0.1; 5.3 1 (1.0) <0.1; 5.2 0 – Solici ed eac ions wi hin 7 days a e boos e accina ion 96 (93.2) 86.5; 97.2 96 (91.4) 84.4; 96.0 80 (77.7) 68.4; 85.3 G ade 3 solici ed eac ion 14 (13.6) 7.6; 21.8 11 (10.5) 5.3; 18.0 5 (4.9) 1.6; 11.0 Solici ed injec ion si e eac ion 71 (68.9) 59.1; 77.7 63 (60.0) 50.0; 69.4 33 (32.0) 23.2; 42.0 G ade 3 ISR 11 (10.7) 5.5; 18.3 5 (4.8) 1.6; 10.8 1 (1.0) <0.1; 5.3 A e Hexa alen accine 68 (66.0) 56.0; 75.1 63 (60.0) 50.0; 69.4 NA – G ade 3 ISR 10 (9.7) 4.8; 17.1 5 (4.8) 1.6; 10.8 NA – A e MenACWY accine 49 (47.6) 37.6; 57.6 NA – 33 (32.0) 23.2; 42.0 G ade 3 ISR 1 (1.0) <0.1; 5.3 NA – 1 (1.0) <0.1; 5.3 Solici ed sys emic eac ion 91 (88.3) 80.5; 93.8 90 (85.7) 77.5; 91.8 75 (72.8) 63.2; 81.1 G ade 3 solici ed sys emic eac ion 5 (4.9) 1.6; 11.0 6 (5.7) 2.1; 12.0 4 (3.9) 1.1; 9.6 Unsolici ed non-se ious sys emic AE 53 (51.5) 41.4; 61.4 50 (47.6) 37.8; 57.6 60 (58.3) 48.1; 67.9 Unsolici ed non-se ious sys emic AR 5 (4.9) 1.6; 11.0 4 (3.8) 1.0; 9.5 1 (1.0) <0.1; 5.3 AE leading o s udy discon inua ion 0 – 0 – 0 – SAE 1 (1.0) <0.1; 5.3 0 – 1 (1.0) <0.1; 5.3 SAR 0– 0– 0– Dea h 0 – 0 – 0 – AESI/SAE om app oxima ely 12–13 mon hs o age 97 (94.2) 87.8; 97.8 97 (92.4) 85.5; 96.7 90 (87.4) 79.4; 93.1 AESI 0 – 0 – 1 (1.0) <0.1; 5.3 SAEs 1 (1.0) <0.1; 5.3 1 (1.0) y <0.1; 5.2 1 (1.0) <0.1; 5.3 Rela ed o Hexyon 0 – 0 – 0 – Dea h 0 – 0 – 0 – Abb e ia ions: AE, ad e se e en ; AESI, ad e se e en o special in e es ; aP, acellula pe ussis; AR, ad e se eac ion; CI, con idence in e al; D, diph he ia; HB, hepa i is B; IPV, inac i a ed polio i us; ISR, injec ion si e eac ions; MenACWY, meningococcal se og oups A, C, W and Y; NA, no applicable; PRP, Haemophilus in luenzae ype b capsula poly ibosyl- ibi ol-phospha e; SAE, se ious ad e se e en ; SAR, se ious ad e se eac ion; T, e anus; TT, e anus oxoid. * Two-sided 95% CIs o he pe cen age o pa icipan s p esen ing he speci ied e en a leas once we e calcula ed using he exac binomial me hod. y This e en occu ed 64 days a e accina ion a app oxima ely 12 mon hs o age ( isi 5); consequen ly, he isi a 13 mon hs o age was delayed and pe o med 85 days a e isi 5. 8026 T. Vesika i e al. / Vaccine 36 (2018) 8019–8027 Con ibu ions TV con ibu ed o he p o ocol e iew, pa icipan s’ en olmen , pa icipan s’ da a collec ion/acquisi ion, and da a in e p e a ion. RB and XDC con ibu ed o he labo a o y analysis and da a in e - p e a ion. FB, ST and SL con ibu ed o he s udy design and de el- opmen , and da a analysis and in e p e a ion. CE con ibu ed o he w i ing o he manusc ip d a s. All au ho s c i ically e iewed and e ised he manusc ip d a s, and app o ed he inal e sion o he manusc ip . All au ho s ake esponsibili y o he in eg i y o he da a and accu acy o he da a analysis. All au ho s we e in ol ed in he decision o submi he manusc ip o Vaccine o publica ion. Role o he unding sou ce Sano i Pas eu MSD, Lyon, F ance p o ided inancial suppo o he conduc o he esea ch and p epa a ion o he a icle and was in ol ed in he s udy design, in he collec ion, analysis and in e - p e a ion o da a, and in he w i ing o he ial epo . Appendix A. 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