Arexvy
respiratory syncytial virus vaccine, adjuvanted (AS01E) · RSV preF3; TLR4 (AS01E adjuvant)4 (rabbit, IM doses on days 1, 15 and 29, plus 4-week recovery)
Flublok: how long were the pivotal tox studies?
influenza vaccine, recombinant hemagglutinin · Influenza HA
Longest pivotal study
5 weeks
“The pivotal repeat-dose toxicity study was conducted with the SC route. Results showed that five weekly SC injections with RIV3 were locally and systemically well tolerated in rats.”
Pivotal GLP studies
GLP rat repeat-dose study, five weekly SC injections of RIV3; rat IM DART; single-dose, local tolerance studies
“The pivotal repeat-dose toxicity study was conducted with the SC route. Results showed that five weekly SC injections with RIV3 were locally and systemically well tolerated in rats.”
Route in tox
SC for the pivotal repeat-dose study (7-day interval) instead of the clinical IM route; IM for DART
“It is noteworthy that use of an alternative administration route (SC) rather than the clinically intended IM route for a pivotal toxicity study is uncommon, as is the short dosing interval of 7-days rather than a classic 2-3-weeks interval.”
Same question, other vaccines
Cervarix
human papillomavirus bivalent (types 16, 18) vaccine, recombinant, AS04-adjuvanted · HPV 16/18 L1 VLPs; TLR4 (AS04 adjuvant)8 (rabbit IM, 4 injections days 1-57, plus 13-week recovery)
Cyfendus
anthrax vaccine adsorbed, adjuvanted · B. anthracis PA; TLR9 (CpG 7909 adjuvant)4 (adult rat repeat-dose study, full human dose on SD 1, 15, 29)
Fendrix
hepatitis B vaccine (rDNA), AS04C-adjuvanted · HBsAg VLPs; TLR4 (AS04C adjuvant)2 (14-day IV MPL study in Beagle dog; rabbit vaccine study duration not stated)
Gardasil
human papillomavirus quadrivalent (types 6, 11, 16, 18) vaccine, recombinant · HPV 6/11/16/18 L1 VLPs10 (BALB/c mouse)
Gardasil 9
human papillomavirus 9-valent vaccine, recombinant · HPV 9-valent L1 VLPs13 (rat, IM, 4 doses every 21 days)
Heplisav-B
hepatitis B vaccine (recombinant), adjuvanted · HBsAg; TLR9 (CpG 1018 adjuvant)8 (rat and cynomolgus monkey, weekly SC CpG 1018 alone)
Mosquirix
RTS,S/AS01 malaria vaccine · P. falciparum CSP-HBsAg (RTS,S) VLPs; TLR4 (AS01 adjuvant)6 (rabbit RTS,S/AS01B, necropsy Day 45; recovery to Day 70)
Nuvaxovid
COVID-19 vaccine, recombinant spike protein nanoparticle, Matrix-M-adjuvanted · SARS-CoV-2 spike (nanoparticle)8 weeks
PreHevbrio
hepatitis B vaccine (recombinant), 3-antigen · HBsAg S/pre-S1/pre-S2 VLPs8 weeks
Shingrix
zoster vaccine recombinant, AS01B-adjuvanted · VZV glycoprotein E; TLR4 (AS01B adjuvant)12 (AS01B alone in rabbit, seven IM doses 14 days apart)
HBVaxPro
hepatitis B vaccine (rDNA) · HBsAg VLPsNot stated (rat, 3 injections at monthly intervals)