What started as two CEOs eating tacos and talking biotech led to a merger and a new company.
The epigenetic editing startup Chroma Medicine and the delivery specialist Nvelop Therapeutics said Wednesday they have agreed to merge, forming a new company called nChroma Bio. The idea behind the deal emerged from a Sept. 25 dinner at bartaco in the Fenway neighborhood of Boston between Nvelop CEO Jeff Walsh and Chroma CEO Catherine Stehman-Breen.
The two swapped notes on the opportunities and challenges they were facing at their startups. Chroma had ongoing efforts to evaluate bringing in next-generation delivery technologies. Nvelop was also looking to bring in more genetic payloads that it could deliver with its technology.
“We learned in that meeting that each of us was looking for the other,” said Walsh, who is now CEO of nChroma.
It took 10 weeks from that dinner to close the merger, aided by the fact the startups have overlapping founders, investors and board members. Jeff Marrazzo, the former Spark Therapeutics CEO who was on both Nvelop and Chroma’s boards, will serve as nChroma’s chairman.
Stehman-Breen will serve as an advisor to the new company, as the rest of Walsh’s leadership team is a mix of Nvelop and Chroma executives. The new company also completed a $75 million financing led by Cormorant Asset Management, ARCH Venture Partners, Atlas Venture and Newpath Partners. Along with cash on the two startups’ existing balance sheets, nChroma has multiple years of runway — enough to get to clinical data for its lead program, Walsh said.
The merger is the latest sign of the volatile genetic medicines field, where the vast potential of one-and-done curative treatments is weighed down by the scientific, regulatory and commercial challenges of turning that into a sustainable business.
NChroma joins a list of richly funded genetic medicine startups that have recently consolidated or folded.
The gene editing startup Tome Biosciences
effectively shuttered
earlier this summer, saying it was running out of money less than a year after publicly launching — despite securing $213 million in venture funding. Other high-profile startup deals in the space include
an all-equity merger
between ReNAgade Therapeutics and Orna Therapeutics, as well as the David Liu spinout Resonance Medicine
shutting down
in December 2023 after raising $50 million.
2024 has been turbulent for Chroma, despite raising over $250 million since its 2021 public debut, including a $135 million Series B in March 2023. The biotech went through
an undisclosed number of layoffs
in May, followed by two C-suite departures over the next few months with chief scientific officer Vic Myer and financial and corporate development chief Brett Kaplan both leaving.
Nvelop publicly
launched this April with $100 million in seed funding
to advance new delivery technologies out of the labs of Liu and Keith Joung. By combining their startups, Walsh said nChroma is better positioned to deliver the data and products that matter most for biotech success.
“What we see is the opportunity here to rise above the noise,” Walsh said.
That starts with advancing its lead candidate, called CRMA-1001, an epigenetic editor targeting coinfections of hepatitis B. Jenny Marlowe, nChroma’s chief development officer, said they expect to file a CTA in 2025 and have initial biomarker data for a single-ascending dose trial in 2026.
Chroma was also advancing a PCSK9-targeting epigenetic editor in parallel. Marlowe said a company of its size didn’t have the resources to advance both to the clinic simultaneously, calling the hepatitis thesis “more compelling.” She said they are still working in the PCSK9 area, particularly in potentially combining that with other genetic targets to pursue multiplex editing — a possibly unique advantage of its technology, which relies on changing DNA expression with methylation rather than cutting DNA strands.
As with most mergers, nChroma is going through layoffs for areas of overlap or redundancies, Walsh said. In an advance interview on Monday, he declined to share specifics on how many roles will be eliminated, but said affected employees would be notified before the news of nChroma’s merger became public on Wednesday. The company also declined to share the current headcount of nChroma or recent headcounts of the two startups before the merger.