Analyst, Quality Control

Yowei Therapeutics and Yowei Oncology are stealth-stage life-sciences companies working closely with CSBio to advance peptide-based clinical programs. Their work spans longevity and peptide therapeutics, clinical trials, evaluation of a 503A pharmacy model, personalized synthetic neoantigen peptide oncology programs, and supporting microbiology and laboratory capabilities.

Together, they are building the clinical, pharmacy, data, laboratory, and operational infrastructure needed to responsibly translate peptide programs into patient-facing studies and services. Both companies expect to remain in stealth through Q1 2027.

CSBio is a peptide contract manufacturing founded in 1993. CSBio initial products were a complete line of automated synthesizers for manufacturing and process development, with a focus on cGMP production. In 1994, CSBio opened a custom peptide facility and began producing high quality compounds for research organizations and pharmaceutical companies worldwide.

In 2004, CSBio opened a peptide production facility in Menlo Park, CA and in 2014, CSBio expanded production capability through the addition of a new, state of the art building dedicated to cGMP peptide production. In 2017, CSBio passed a FDA inspection and were recommended to be approved for commercial drug substance manufacturing. In 2023, additional cGMP clinical production capacity was added in Milpitas, CA.