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Vyjuvek: which tox species, and why?

beremagene geperpavec · COL7A1 (HSV-1, topical)
Species
Mouse only (BALB/c) for GLP tox; single species
“the use of a single species (mice) for the toxicity studies is considered acceptable and in line with the”
✓ VerifiedEMA assessment report, p. 34Source ↗
Why that species
No justification given beyond historical use of mice; mouse skin dissimilar to human; EB mouse and human RDEB xenograft used for pharmacology
“A justification for the choice of mice is not specified, other than the suggestion that this species is historically used in toxicity studies.”
✓ VerifiedEMA assessment report, p. 34Source ↗
Surrogate molecule
No surrogate; clinical vector (KB103) tested in mice; human COL7 transgene
“In vivo Good Laboratory Practice (GLP) toxicology studies evaluated 1) single intravenous (IV) administration of VYJUVEK in BALB/c mice”
✓ VerifiedFDA pharmacology/toxicology review, p. 2Source ↗

Same question, other gene therapies

Adstiladrin

nadofaragene firadenovec · IFN-alpha2b (adenovirus, intravesical)
Cynomolgus monkey for rAd-IFN/Syn3 GLP tox; rat and monkey for excipient Syn3

Beqvez

fidanacogene elaparvovec · Factor IX
Cynomolgus monkey and mouse (tox); hemophilia B dog and mouse (pharmacology); rabbit (shedding)

Casgevy

exagamglogene autotemcel · BCL11A enhancer (CRISPR-Cas9, ex vivo HSC)
Mouse only (irradiated NSG immunodeficient xenotransplant mice)

Elevidys

delandistrogene moxeparvovec · Micro-dystrophin
Mouse only (wild-type C57BL/6J and mdx disease model); NHP only in non-GLP supporting studies

Fayuvi

rebisufligene etisparvovec · SGSH (AAV9)
Wild-type C57BL/6 mice only (6-month and 3-month GLP studies)

Genglycos

pariglasgene brecaparvovec · G6PC (AAV8)
Mouse (adult and juvenile C57BL/6N) and juvenile cynomolgus monkey; GLP single-dose studies

Glybera

alipogene tiparvovec · LPL (AAV1)
Wild-type mouse only for GLP tox; PD in LPL-/- mice and LPL-deficient cats; biodistribution in cats, mice, rabbits

Hemgenix

etranacogene dezaparvovec · Factor IX
Mouse and cynomolgus monkey

Imlygic

talimogene laherparepvec · GM-CSF (oncolytic HSV-1)
Mouse (BALB/c) for GLP tox; single-dose studies also in rats and dogs; no permissive/relevant species for human GM-CSF

Itvisma

onasemnogene abeparvovec (intrathecal) · SMN1 (AAV9, intrathecal)
Cynomolgus monkey (pivotal IT tox); FVB mice for ICV safety and fertility/EFD; SMA piglet and SMN-delta7 mouse pharmacology

Kebilidi

eladocagene exuparvovec · AADC
Rat (pivotal GLP); cynomolgus monkey for biodistribution/excipient studies

Kresladi

marnetegragene autotemcel · ITGB2 (LVV, ex vivo HSC)
Mouse only (CD18HYP/CD18KO disease models, recipient mice, NSG mice); no large-animal tox

Lenmeldy

atidarsagene autotemcel · ARSA (LVV, ex vivo HSC)
Mouse (As2-/- MLD model, murine ARSA-LV HSPCs) for pivotal GLP; immunodeficient mice for human-cell biodistribution

Luxturna

voretigene neparvovec · RPE65
Dog (normal-sighted and RPE65-mutant Briard) and non-human primate

Lyfgenia

lovotibeglogene autotemcel · HBB T87Q (LVV, ex vivo HSC)
Mouse only (beta-thalassemic and wild-type C57BL/6 transplant models; immunodeficient mice for human cells)

Otarmeni

lunsotogene parvec · OTOF (AAV, intracochlear)
Mouse (Otof-Q828X hom disease model) and cynomolgus monkey

Papzimeos

zopapogene imadenovec · HPV6/11 antigens (gorilla adenovirus)
Mouse only (wild-type C57BL/6); no NHP studies

Roctavian

valoctocogene roxaparvovec · Factor VIII
Mouse (CD1, Rag2-/-, hemophilia A models) and cynomolgus/rhesus monkey; all males

Skysona

elivaldogene autotemcel · ABCD1 (LVV, ex vivo HSC)
Mouse only: myeloablated immunodeficient NSG/NSGS mice given human CD34+ HSCs

Strimvelis

autologous CD34+ cells transduced with ADA (no INN) · ADA (gamma-retroviral, ex vivo HSC)
NSG immunodeficient mouse only (xenograft of transduced human CD34+ cells)

Tudriqev

vusolimogene oderparepvec · GALV-GP + GM-CSF (oncolytic HSV-1)
Tumor-bearing immunocompetent mice (TUDRIQEV, mRP1) and healthy rats (murine surrogate mRP1)

Waskyra

etuvetidigene autotemcel · WAS (LVV, ex vivo HSC)
Mouse only: WAS knockout (C57BL/6 and SV129) mice with murine surrogate cells; Rag2-/-IL2rg-/- mice for human-cell fate

Zevaskyn

prademagene zamikeracel · COL7A1 (RV-modified keratinocyte sheets)
Mouse only (immunodeficient mice with implanted human keratinocyte products); no relevant large-animal species

Zolgensma

onasemnogene abeparvovec · SMN1
Mouse only for pivotal GLP tox (neonatal FVB); NHP only in non-GLP studies (later 6-month juvenile NHP study in label)

Zynteglo

betibeglogene autotemcel · HBB T87Q (LVV, ex vivo HSC)
Mouse only (beta-thalassaemic Hbbth1/th1 and wild-type C57BL/6; immunodeficient NSG for human HSC); murine surrogate product

Summary across all 26 gene therapies →