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Imdelltra: how long were the pivotal tox studies?

tarlatamab · DLL3 x CD3
Longest pivotal study
13 weeks
“No adverse effects on any toxicology or safety pharmacology parameters evaluated at up to the high dose of 4500 µg/kg weekly for 3 months.”
✓ VerifiedFDA multi-discipline review, p. 67Source ↗
Pivotal GLP studies
GLP cynomolgus 28-day (with 28-day recovery) and 3-month weekly IV studies up to 4500 µg/kg; non-GLP 10-day study; mouse surrogate 1-month
“The nonclinical safety assessment of tarlatamab was based on a 10-day exploratory as well as 28-day GLP and 3-month GLP repeat-dose IV toxicology studies with once weekly doses of up to 4500 µg/kg.”
✓ VerifiedFDA multi-discipline review, p. 64Source ↗
Route in tox
IV infusion (clinical route)
“The IV route of administration was chosen for in vivo nonclinical studies based on the intended clinical route of administration.”
✓ VerifiedFDA multi-discipline review, p. 64Source ↗

Same question, other bispecifics

Bizengri

zenocutuzumab · HER2 x HER3
13 weeks

Blincyto

blinatumomab · CD19 x CD3
13 weeks

Columvi

glofitamab · CD20 x CD3
4 weeks

Elrexfio

elranatamab · BCMA x CD3
13 weeks

Epkinly

epcoritamab · CD20 x CD3
5 weeks

Kimmtrak

tebentafusp · CD3 x gp100 (TCR fusion)
0 (no in vivo tox study)

Korjuny

catumaxomab · EpCAM x CD3
0 (no in vivo tox study)

Lunsumio

mosunetuzumab · CD20 x CD3
26 weeks

Ordspono

odronextamab · CD20 x CD3
16 weeks

Removab

catumaxomab · EpCAM x CD3
0 (no in vivo tox study)

Talvey

talquetamab · GPRC5D x CD3
4 weeks

Tecvayli

teclistamab · BCMA x CD3
5 weeks

Vabysmo

faricimab · VEGF-A x Ang-2
26 weeks

Ziihera

zanidatamab · HER2 x HER2 (biparatopic)
13 weeks

Summary across all 18 bispecifics →