Nonclinical precedent Request an invite
Species
Mouse and rabbit in labeled studies (carcinogenicity, reproduction); general-toxicity species not stated
“In animal reproduction studies, no adverse developmental or reproductive effects were observed when bepirovirsen was administered subcutaneously to mice and rabbits at less than 1 (mouse) and approximately 3 (rabbits) times the maximum recommended human dose (MRHD), based on body surface area (BSA) comparisons (see Data).”
✓ VerifiedUS prescribing informationSource ↗
Why that species
Not stated in public reviews

The reviews list the species but not why. For small molecules, ICH M3(R2) expects one rodent and one non-rodent species, chosen with in vitro metabolism, protein binding and exposure data compared with human.

“In vitro metabolic and plasma protein binding data for animals and humans and systemic exposure data (ICH S3A, Ref. 7) in the species used for repeated-dose toxicity studies generally should be evaluated before initiating human clinical trials.”
✓ VerifiedICH 2009: ICH M3(R2): Guidance on Nonclinical Safety Studies for the Conduct…, p. 11Source ↗

Pre-IND readiness checklist →

Surrogate molecule
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Species: general tox
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Species: DART
Mouse and rabbit (animal reproduction studies)
“In animal reproduction studies, no adverse developmental or reproductive effects were observed when bepirovirsen was administered subcutaneously to mice and rabbits at less than 1 (mouse) and approximately 3 (rabbits) times the maximum recommended human dose (MRHD), based on body surface area (BSA) comparisons (see Data).”
✓ VerifiedUS prescribing informationSource ↗
Species: carcinogenicity
Mouse (2-year, subcutaneous)
“In a 2-year carcinogenicity study in mice, bepirovirsen sodium was administered by subcutaneous injection weekly at doses of 3, 10, and 30 mg/kg (approximately 0.05, 0.2, and 0.5 times the RHD, respectively, based on BSA comparison).”
✓ VerifiedUS prescribing informationSource ↗
Surrogate used in
Yes: transgenic hTLR8 knock-in mice (and an hTLR8-overexpressing cell line) for immunostimulatory pharmacology
“This was demonstrated in an hTLR8-overexpressing cell line and confirmed in transgenic hTLR8 knock-in mice.”
✓ VerifiedUS prescribing informationSource ↗

Email me this as a cited memo

Species for Hibsago, each with the regulator's own words, the page and a link. Ready to paste into a briefing document or send to your team.

Same question, other oligonucleotides

Amondys 45

casimersen · DMD exon 45 (PMO)
Adult male mouse and cynomolgus monkey; juvenile male rat

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

Defitelio

defibrotide · Fragmented DNA oligonucleotides
Rat and dog

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

Kynamro

mipomersen · APOB (ASO)
Mouse, rat and cynomolgus monkey (clinical ASO plus rodent surrogates)

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)

Vitravene

fomivirsen · CMV IE2 mRNA (ASO)
Rabbit and monkey

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

Summary across all 27 oligonucleotides →