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Tecvayli: how long were the pivotal tox studies?

teclistamab · BCMA x CD3
Longest pivotal study
5 weeks
“The toxicity and toxicokinetics (TK) of teclistamab were evaluated in a 5-week repeat-dose toxicity study in cynomolgus monkeys.”
✓ VerifiedFDA multi-discipline review, p. 37Source ↗
Pivotal GLP studies
GLP 5-week weekly IV monkey study (1, 10, 30 mg/kg) with 8-week recovery; 3-month study waived; rabbit SC local tolerance
“Monkeys were administered teclistamab (0 [control], 1, 10, or 30 mg/kg/dose, IV) once weekly for five total doses followed by an 8-week recovery period.”
✓ VerifiedFDA multi-discipline review, p. 38Source ↗
Route in tox
IV in monkey (clinical route SC); single SC dose in rabbit for local tolerance
“This study evaluated the IV route of administration, whereas the clinical route of administration is subcutaneous (SC).”
✓ VerifiedFDA multi-discipline review, p. 38Source ↗

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

Vabysmo

faricimab · VEGF-A x Ang-2
26 weeks

Ziihera

zanidatamab · HER2 x HER2 (biparatopic)
13 weeks

Summary across all 18 bispecifics →