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Oxlumo: genotox, carcinogenicity and repro: done or skipped?

lumasiran · HAO1 (siRNA)
Genotoxicity
Conducted: Ames, human lymphocyte chromosome aberration, rat micronucleus; all negative
“Lumasiran was not genotoxic in an in vitro bacterial reverse mutation (Ames) assay, in vitro chromosomal aberration assay in cultured human peripheral blood lymphocytes, or in vivo micronucleus assay in rats.”
✓ VerifiedFDA integrated review, p. 58Source ↗
Carcinogenicity
Postmarketing requirement; later completed: 26-week Tg-rasH2 mouse and 2-year rat both negative
“Lumasiran was not carcinogenic in transgenic Tg-rasH2 mice following monthly subcutaneous administration of lumasiran for 26 weeks at doses of 150, 500, or 1500 mg/kg.”
✓ VerifiedUS prescribing informationSource ↗
Instead of carcinogenicity
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.
Instead of genotoxicity
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.
DRG histopathology
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.
Reproductive & developmental
Full DART: rat fertility, rat and rabbit EFD, rat PPND, plus juvenile rat study; no serious effects
“Reproductive toxicology studies did not reveal any serious fertility or teratogenic effects of lumasiran.”
✓ VerifiedFDA integrated review, p. 58Source ↗
Safety pharmacology
Standalone monkey CV/respiratory telemetry (10, 100 mg/kg weekly x4), no effects; CNS in 8-week monkey study
“In a standalone cardiovascular safety pharmacology study in the monkey, the administration of lumasiran at 10 and 100 mg/kg weekly for a total of four doses had no immediate or delayed effects on clinical observations, qualitative or quantitative electrocardiogram parameters,”
✓ VerifiedFDA integrated review, p. 55Source ↗
Genotox: Ames
Bacterial reverse mutation (Ames): negative
“Lumasiran was not genotoxic in an in vitro bacterial reverse mutation (Ames) assay, in vitro chromosomal aberration assay in cultured human peripheral blood lymphocytes, or in vivo micronucleus assay in rats.”
✓ VerifiedFDA integrated review, p. 58Source ↗
Genotox: in vitro mammalian
Chromosomal aberration in human peripheral blood lymphocytes: negative
“Lumasiran was not genotoxic in an in vitro bacterial reverse mutation (Ames) assay, in vitro chromosomal aberration assay in cultured human peripheral blood lymphocytes, or in vivo micronucleus assay in rats.”
✓ VerifiedFDA integrated review, p. 58Source ↗
Genotox: in vivo
Rat micronucleus: negative
“Lumasiran was not genotoxic in an in vitro bacterial reverse mutation (Ames) assay, in vitro chromosomal aberration assay in cultured human peripheral blood lymphocytes, or in vivo micronucleus assay in rats.”
✓ VerifiedFDA integrated review, p. 58Source ↗
Carcinogenicity model
26-week Tg-rasH2 mouse (up to 1500 mg/kg monthly) and rat study; not carcinogenic in mice
“Carcinogenicity studies were conducted in Tg-rasH2 mice and Sprague Dawley rats. Lumasiran was not carcinogenic in transgenic Tg-rasH2 mice following monthly subcutaneous administration of lumasiran for 26 weeks at doses of 150, 500, or 1500 mg/kg.”
✓ VerifiedUS prescribing informationSource ↗
Carcinogenicity timing
2-year rat and 6-month transgenic mouse studies underway at approval; postmarketing requirements
“Two-year rat and 6-month transgenic mouse carcinogenicity studies are underway. The available data do not raise concern for a risk of carcinogenicity that should delay approval given the apparent clinical benefit and unmet need. As such, these studies will be postmarketing requirements.”
✓ VerifiedFDA integrated review, p. 58Source ↗
hERG / QT
Monkey safety pharmacology: no QT or QTc prolongation after four SC doses of 10 and 100 mg/kg
“Safety pharmacology studies in monkeys did not demonstrate prolongation in QT or QTc (using the individual animal correction factor) after four subcutaneous doses of 10 and 100 mg/kg administered in a 3-week period.”
✓ VerifiedFDA integrated review, p. 26Source ↗

Same question, other oligonucleotides

Amondys 45

casimersen · DMD exon 45 (PMO)
Conducted; negative (Ames, CHO chromosomal aberration, mouse micronucleus)

Amvuttra

vutrisiran · TTR (siRNA)
Conducted: Ames, human lymphocyte chromosome aberration, rat micronucleus; all negative

Dawnzera

donidalorsen · Prekallikrein / KLKB1 (ASO)
Conducted: in vitro Ames, CHL chromosomal aberration and in vivo mouse bone marrow micronucleus; no genotoxicity

Defitelio

defibrotide · Fragmented DNA oligonucleotides
Negative: Ames assay and in vivo rat bone marrow micronucleus assay

Exondys 51

eteplirsen · DMD exon 51 (PMO)
Conducted; negative (Ames, CHO chromosomal aberration, mouse micronucleus)

Givlaari

givosiran · ALAS1 (siRNA)
Conducted: Ames, human lymphocyte chromosome aberration, rat micronucleus; all negative

Hibsago

bepirovirsen · HBV RNA (ASO)
Conducted; negative (Ames, mammalian cell chromosomal aberration, in vivo mouse micronucleus)

Izervay

avacincaptad pegol · C5 (aptamer)
Conducted: Ames, chromosomal aberration in mammalian cells, mouse micronucleus; all negative

Kynamro

mipomersen · APOB (ASO)
Conducted; negative (Ames, mouse lymphoma, mouse micronucleus)

Leqvio

inclisiran · PCSK9 (siRNA)
Conducted: standard panel, negative

Macugen

pegaptanib · VEGF-165 (aptamer)
Conducted (GLP); pegaptanib and 2'-FU/2'-FC nucleosides negative overall

Onpattro

patisiran · TTR (siRNA)
Conducted: Ames, human lymphocyte chromosome aberration, mouse micronucleus; all negative

Qalsody

tofersen · SOD1 (ASO)
Conducted; negative (Ames, CHL chromosomal aberration, mouse micronucleus)

Qfitlia

fitusiran · Antithrombin / SERPINC1 (siRNA)
Conducted: bacterial reverse mutation, in vitro chromosomal aberration (human lymphocytes), rat bone-marrow micronucleus; all negative

Redemplo

plozasiran · APOC3 (siRNA)
Conducted: Ames, in vitro chromosomal aberration (TK6), in vivo mouse micronucleus; not genotoxic

Rivfloza

nedosiran · LDHA (siRNA)
Conducted; negative (Ames, in vitro micronucleus, in vivo mouse micronucleus)

Rytelo

imetelstat · Telomerase (oligo)
Conducted; negative (Ames, in vitro micronucleus, in vivo mouse micronucleus)

Spinraza

nusinersen · SMN2 (ASO)
Conducted; negative (Ames, CHO chromosomal aberration, mouse micronucleus)

Tegsedi

inotersen · TTR (ASO)
Conducted; negative (Ames, CHL chromosomal aberration, mouse micronucleus)

Tryngolza

olezarsen · APOC3 (ASO)
Conducted; negative (Ames, chromosomal aberration, mouse micronucleus)

Viltepso

viltolarsen · DMD exon 53 (PMO)
Conducted; negative (Ames, CHL chromosomal aberration, mouse micronucleus)

Vitravene

fomivirsen · CMV IE2 mRNA (ASO)
Conducted: mutagenic potential evaluated in in vitro and in vivo assays

Vyondys 53

golodirsen · DMD exon 53 (PMO)
Conducted; negative (Ames, CHO chromosomal aberration, mouse micronucleus)

Wainua

eplontersen · TTR (ASO)
Conducted; negative (Ames, chromosomal aberration, mouse micronucleus)

Waylivra

volanesorsen · APOC3 (ASO)
Conducted: bacterial reverse mutation, mouse lymphoma TK, mouse bone-marrow micronucleus; all negative

Zanvastro

zilganersen · GFAP (ASO)
Conducted: Ames, in vitro chromosomal aberration, mouse micronucleus; all negative

Summary across all 27 oligonucleotides →