Sutro Biopharma Orphan Status for Multiple Myeloma Therapy

FDA has granted Sutro Biopharma an orphan drug designation for STRO-001 for treating multiple myeloma. The company says TRO-001 is a potential first-in-class antibody drug conjugate (ADC) targeting CD74, a protein highly expressed in B-cell malignancies. It was developed with Sutro’s cell-free protein synthesis and site-specific conjugation platform, XpressCF+, which “enables design and manufacture of a highly optimized single molecular species within the product, rather than the usual mixture of imprecisely conjugated antibodies that comprise an ADC development product made by conventional cell-based manufacturing platforms,” it says. STRO-001 is currently being studied in a Phase 1 clinical trial enrolling separate dose escalation cohorts for myeloma and B-cell lymphoma.

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