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Sutro Biopharma Announces First Patient Dosed in Phase 1 Trial of STRO-006, a Next-Generation ITGB6-Targeting ADC, in Advanced Solid Tumors

$STROPress releaseOct 21, 2026, 8:00 AM ETRead the release

Sutro Biopharma dosed the first patient in a Phase 1 trial of STRO-006, its ITGB6-targeting exatecan ADC with a drug-to-antibody ratio of 8, in advanced solid tumors. STRO-006 is the company's second wholly-owned ADC to enter the clinic in under a year; the open-label multicenter dose-escalation trial starts at 1.5 mg/kg, supported by tolerability in non-human primates at doses up to 30 mg/kg.

Key figures

Drug Name
STRO-006
Phase Of Trial
Phase 1
Starting dose
1.5 mg/kg
Nhp tolerance dose
up to 30 mg/kg
Drug antibody ratio
8
Initial data timing
second half of 2027

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