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Blincyto: how was the first human dose set?

blinatumomab · CD19 x CD3
First-in-human starting dose
Not stated in public reviews
NOAEL / key findings
No NOAEL assigned; lymphoid tissues target organs (lymphocyte depletion, decreased cellularity); chimp hypotension dose-limiting at 0.12 ug/kg
“Following daily administration of the surrogate for 4 or 13 weeks in mice, lymphoid tissues were the target organs of toxicity with decreased spleen weights and decreased cellularity or germinal center development observed in the lymph nodes, Peyer’s patches, and spleen.”
✓ VerifiedFDA pharmacology/toxicology review, p. 12Source ↗

Same question, other bispecifics

Columvi

glofitamab · CD20 x CD3
MABEL: monkey PK/PD IL-6 excursion model plus in vitro human/monkey whole-blood cytokine data; 5 ug flat dose

Lunsumio

mosunetuzumab · CD20 x CD3
MABEL-type: EC20 from in vitro human PBMC cytokine release / T-cell activation assay

Vabysmo

faricimab · VEGF-A x Ang-2
Starting dose 0.5 mg/eye IVT supported by monkey tox data (6 mg/eye high dose not initially supported; dose escalation gated)

Bizengri

zenocutuzumab · HER2 x HER3
Not stated in public reviews

Elrexfio

elranatamab · BCMA x CD3
Not stated in public reviews

Epkinly

epcoritamab · CD20 x CD3
Not stated in public reviews

Hemlibra

emicizumab · FIXa x FX
Not stated in public reviews

Imdelltra

tarlatamab · DLL3 x CD3
Not stated in public reviews

Kimmtrak

tebentafusp · CD3 x gp100 (TCR fusion)
Not stated in public reviews

Korjuny

catumaxomab · EpCAM x CD3
Not stated in public reviews

Lynozyfic

linvoseltamab · BCMA x CD3
Not stated in public reviews

Ordspono

odronextamab · CD20 x CD3
Not stated in public reviews

Removab

catumaxomab · EpCAM x CD3
Not stated in public reviews

Rybrevant

amivantamab · EGFR x MET
Not stated in public reviews

Talvey

talquetamab · GPRC5D x CD3
Not stated in public reviews

Tecvayli

teclistamab · BCMA x CD3
Not stated in public reviews

Ziihera

zanidatamab · HER2 x HER2 (biparatopic)
Not stated in public reviews

Summary across all 18 bispecifics →