How do you turn an idea into action?
That simple but profound question drives everything at Eshelman Innovation.
For answers and to celebrate the institute’s 10th anniversary, we’re looking back at the evolution of the Rapidly Emerging Antiviral Drug Development Initiative. READDI began as an idea sparked by a chance encounter, sketched out over beers at a Chapel Hill dive bar and fueled by a global pandemic.
Five years later, after a major push by Eshelman Innovation, READDI has raised nearly $100 million to discover and develop antiviral therapeutics to protect humanity against future viral outbreaks. Among other milestones, READDI is now a core implementation partner in the G7’s 100 Days Mission, the world’s leading pandemic preparedness effort. READDI helped guide the creation of the recently launched 100 Days Mission Therapeutics Roadmap by sharing insights about virology, drug development timelines and budget projections honed during its startup journey.
“READDI has moved from a project within UNC to being a global entity,” says Angela Kashuba, dean of the UNC Eshelman School of Pharmacy, which houses Eshelman Innovation.
The idea
Back in 2018, during a session for prospective graduate students, Nat Moorman, associate professor in the UNC School of Medicine’s microbiology and immunology department, noticed a research poster about measuring the activity of kinases. It was from the lab of his medical school colleague Lee Graves. Kinases, enzymes involved in cell behavior, are a common target for drugs, including kinase inhibitors used to treat cancer, the focus of Graves’ research.
Moorman, a virologist, wondered how kinases in host cells respond to viral infection. He and Graves did a study and found that drugs that inhibited kinases also inhibited virus replication in those same host cells.
“As I was toying with the idea,” Moorman recalls, “I talked to Mark and Ralph and said, ‘Hey, what if we did this more broadly across different virus families?’”
He’s referring to Carolina virologists Mark Heise, a School of Medicine professor of genetics, and Ralph Baric, William R. Kenan, Jr. Distinguished Professor in the UNC Gillings School of Global Public Health’s epidemiology department and professor in the School of Medicine’s microbiology and immunology department. During informal sessions in Carolina’s Burnett-Womack Building and at the Dead Mule Club, a favorite after hours watering hole, Moorman and colleagues discussed the possibility of creating drugs that work broadly against multiple viruses similar to the way antibiotics broadly fight bacterial infection.
Though this was well before the emergence of SARS-CoV-2, the novel coronavirus that caused the COVID-19 pandemic, the three virologists were fully aware of the looming threat of a pandemic. By 2018, the 21st century had already seen a growing number of deadly viral outbreaks, including SARS and MERS, Chikungunya, Ebola and Zika. The warming world with its globe-hopping humans was like a petri dish of doom.
“We needed to be more forward-thinking in how we develop drugs against viruses,” says Baric, one of the world’s leading coronavirus experts.
Back in the lab, the trio found that, yes, small-molecule drugs that targeted host-cell kinases would broadly inhibit the replication of multiple viruses. There are 24 virus families known to cause disease in humans. Around one-third of those families are known to have pandemic potential. Antivirals that work broadly against all the viruses in a family could offer treatment against both known viruses and those that do not yet exist.
At the time, Moorman had zero drug development experience. He was a basic scientist who studied how viruses replicate. But a lesson learned from his post-doctoral adviser at Princeton University, a legendary scientist named Thomas Shenk, echoed in his head.
“Tom always instilled the idea in me that if you found something useful, it was your obligation to see if you could do something useful with it,” Moorman says. “By funding your research, the NIH lets you go out and learn new things. But the NIH’s mission is to better the lives of the people of the United States.”
So that was the idea: Develop broad-spectrum antivirals to prepare for the coming pandemics. How, then, to turn the idea into action?