Amondys 45
casimersen · DMD exon 45 (PMO)Adult male mouse and cynomolgus monkey; juvenile male rat
Kynamro: which tox species, and why?
mipomersen · APOB (ASO)
Species
Mouse, rat and cynomolgus monkey (clinical ASO plus rodent surrogates)
“Mipomersen toxicity has been assessed primarily in the mouse, rat and monkey, with studies of up to 2-years duration (carcinogenicity studies) available for evaluation in the rodents and up to 1-year for the monkey.”
Why that species
Monkey ~95% apoB sequence match (reduced activity); rodents/dog/rabbit inactive; monkey chosen for class PK similarity
“Species-specific differences in the nucleotide sequence of apoB mRNA caused a reduction (monkey) or complete loss (mouse, rat, dog and rabbit) of the intended pharmacological activity of mipomersen in these species.”
Surrogate molecule
Yes: species-specific surrogate ASOs (mouse ISIS 147764, rat, rabbit ISIS 233183) included in pivotal rodent studies
“For this reason, most pharmacology studies have been conducted with surrogate molecules that optimize base pairing between the ASO and the species-specific apoB target mRNA. Pivotal toxicology studies in rodents have also included an arm with the species-specific surrogate.”
Same question, other oligonucleotides
Amvuttra
vutrisiran · TTR (siRNA)Rat and cynomolgus monkey (monkey only pharmacologically active; rat for off-target/class tox); rabbit EFD
Dawnzera
donidalorsen · Prekallikrein / KLKB1 (ASO)Mouse (CD-1) and cynomolgus monkey
Exondys 51
eteplirsen · DMD exon 51 (PMO)Cynomolgus monkey and juvenile rat (eteplirsen); mdx/C57BL mouse incl. mouse surrogate
Givlaari
givosiran · ALAS1 (siRNA)Rat and cynomolgus monkey (both pharmacologically active); rabbit inactive (EFD only)
Izervay
avacincaptad pegol · C5 (aptamer)Rabbit and dog (IVT ocular studies); rat and cynomolgus monkey (7-day IV); monkey the only pharmacologically relevant species
Leqvio
inclisiran · PCSK9 (siRNA)Rat and cynomolgus monkey (both pharmacologically active); rabbit for EFD
Macugen
pegaptanib · VEGF-165 (aptamer)Rabbit and dog (pivotal IVT); rat IV for systemic; supportive monkey, mouse
Onpattro
patisiran · TTR (siRNA)Rat and cynomolgus monkey (monkey pharmacologically active; rat off-target/LNP)
Oxlumo
lumasiran · HAO1 (siRNA)Rat and cynomolgus monkey (both pharmacologically relevant); rabbit for EFD
Qalsody
tofersen · SOD1 (ASO)Cynomolgus monkey (IT, relevant species), CD-1 mouse (SC) and rat single-dose IT
Qfitlia
fitusiran · Antithrombin / SERPINC1 (siRNA)Healthy rat and cynomolgus monkey (GLP); hemophilia A mouse, hemophilia A dog and induced-HA monkey models
Redemplo
plozasiran · APOC3 (siRNA)Rat (off-target toxicity) and cynomolgus monkey (pharmacologically relevant)
Rivfloza
nedosiran · LDHA (siRNA)Cynomolgus monkey (relevant) plus mouse (nedosiran inactive; off-target assessment)
Rytelo
imetelstat · Telomerase (oligo)Mouse and cynomolgus monkey (general tox); mouse and rabbit (EFD)
Spinraza
nusinersen · SMN2 (ASO)Juvenile cynomolgus monkey (IT) and CD-1 mouse (SC, systemic effects)
Tegsedi
inotersen · TTR (ASO)Mouse, rat and cynomolgus monkey; monkey the only pharmacologically relevant species
Tryngolza
olezarsen · APOC3 (ASO)Mouse (with surrogate) and cynomolgus monkey
Viltepso
viltolarsen · DMD exon 53 (PMO)Male CD-1 mouse and male cynomolgus monkey (plus juvenile male mouse)
Vyondys 53
golodirsen · DMD exon 53 (PMO)Mouse, cynomolgus monkey (adult males) and juvenile rat
Wainua
eplontersen · TTR (ASO)Mouse and cynomolgus monkey (monkey the pharmacologically relevant species)
Waylivra
volanesorsen · APOC3 (ASO)Mouse, rat and cynomolgus monkey (rabbit for embryo-fetal); monkey most relevant
Zanvastro
zilganersen · GFAP (ASO)Mouse (SC and ICV, juvenile) and juvenile monkey (intrathecal); mouse surrogate ASO arm