William Blair initiated research coverage of Keros Therapeutics, Inc. (KROS $59.49), a company focused on the development of novel therapies targeting the TGF-β superfamily of cytokines, which play essential roles in the proliferation and differentiation of numerous cell types.

Analyst Matt Phipps, Ph.D., estimated U.S. approval for KER-012, one of the company’s lead programs, in 2029, with peak sales of $1.9 billion in the U.S. alone and a combined $3.1 billion in the U.S. and Europe.

“Keros Therapeutics is developing differentiated therapies designed to target the TGF-β signaling pathway, which is principal in numerous physiologic processes including the growth and differentiation of blood cells as well as the regulation of bone, skeletal muscle, adipose, and heart tissue,” said Dr. Phipps. “The company has multiple product candidates in clinical-stage development that have the potential to serve blockbuster market indications, and we believe KER-012 and KER-050 will be the main value drivers for the company in the near term.

“In particular, we believe KER-012, an activin receptor ligand trap fusion protein targeting activins and GDFs while

sparing BMP9, has the potential to be the main value driver for Keros, with the results of the TROPOS Phase II trial in pulmonary arterial hypertension expected in 2025,” added Dr. Phipps. “In addition, longer term, we see continued opportunities for business development with the company’s pipeline across a number of indications characterized by aberrant TGF-β family signaling.”

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