Merck Acquires Modifi Biosciences

Modifi Biosciences, a company formed in 2021 as a spinout of technology developed at Yale University, announced on Oct. 23, 2024 that it is being acquired by Merck, known as MSD outside of the United States and Canada (1). Modifi Biosciences develops direct DNA modification enabled cancer treatments. The novel class of small molecules target a DNA repair protein called O6-methylguanine methyl transferase (MGMT). The company’s research was published in Science in 2022 (2) and has had pre-clinical data amassed through a number of tumor models, including patient-derived xenograft models of gliomas.

“In founding Modifi Biosciences, we sought to radically change the oncology treatment paradigm for cancer patients with glioblastoma and other tumors,” said Ranjit S. Bindra, MD, PhD, Modifi Biosciences co-founder, Harvey and Kate Cushing, professor of Therapeutic Radiology at Yale School of Medicine, and scientific director of the Yale Brain Tumor Center at Smilow Cancer Hospital, in a press release. “We are honored to have Merck recognize the potential of our science, and as an oncology company, they are perfectly positioned to advance our innovations through clinical trials and commercialization.”

“DNA repair defects are a frequent hallmark of tumor cells and a major cause of resistance to cancer therapy,” said David Weinstock, MD, vice-president, discovery oncology, Merck Research Laboratories, in the release. “The talented Modifi Biosciences team has developed an innovative approach that we believe has potential for treating some of the most refractory cancer types.”

“We designed our small molecules to have the ability to uniquely overcome clinical resistance mechanisms that have been known for decades but until now have been non-actionable. Additionally, we created the molecules in a manner which allows them to be rapidly progressed from bench-to-bedside,” said Seth Herzon, PhD, Modifi Biosciences co-founder and the Milton Harris ’29 PhD Professor of Chemistry in Yale’s Faculty of Arts and Sciences and professor of Pharmacology and Therapeutic Radiology at the Yale School of Medicine, in the release.

The acquisition agreement has Merck, through a subsidiary, taking possession of all outstanding shares of the company for $30 million with potential milestone payments up to $1.3 billion.

In other news by Merck, the company entered into a license and collaboration agreement in October with Mestag Therapetuics, a Cambridge, UK-based biotech company to identify novel targets for inflammatory disease treatments, using Mestag’s reversing activated fibroblast technology platform. The proprietary platform models the pathogenic role of fibroblasts in human disease.

“Mestag was founded on … insights into fibroblast–immune biology, and as an early innovator in this area of research, we have built a robust pipeline of antibody programs and created a unique and productive target discovery platform,” said Susan Hill, PhD, chief executive officer of Mestag, in a company press release (3). “We are acutely aware of the significant unmet needs faced on a daily basis by patients suffering from inflammatory diseases. We are thrilled to collaborate with [Merck], together driving continued innovation for the benefit of patients.”

References

1. Modifi Biosciences. Modifi Biosciences Acquired by Merck. Press Release. Oct. 23, 2024.
2. Lin, K.; Gueble, S.E.; Sundaram, R.K.; Huseman, E.D.; Bindra, R.S.; Herzon, S.B. Mechanism-based Design of Agents that Selectively Target Drug-resistant Glioma. Science 2022 377 (6605) DOI: 10.1126/science.abn7570
3. Mestag Therapeutics. Mestag Therapeutics Announces License and Research Collaboration with MSD to Identify Novel Targets for Inflammatory Diseases. Press Release. Oct. 8, 2024.