French pharma Servier will pay up to $450 million for an experimental fragile X syndrome drug from UK-based startup Kaerus Bioscience, the companies said Monday morning.
The deal for KER-0193, an oral small molecule that recently wrapped a Phase 1 study, marks Servier’s first asset acquisition in neurology, the 71-year-old drugmaker said in a news release.
There are no FDA-approved medicines for fragile X, which is a neurodevelopmental condition that impacts about 1% of people with autism and intellectual disabilities worldwide, according to Servier.
It’s the second deal for Servier this month after paying $200 million upfront for the ex-US license to
Ideaya Biosciences’
experimental uveal melanoma cancer drug. Earlier this year, it also licensed an investigational RAS- and RAF-targeted cancer drug from
Black Diamond Therapeutics
.
The Kaerus move continues a streak of pharma companies
hunting for single assets
to pad out their pipelines. AbbVie, GSK, Sanofi, Eli Lilly and other drugmakers have taken the single-asset approach this year, as did Servier, when it bought a Phase 1/2 menin inhibitor
from BioNova Pharmaceuticals
for undisclosed terms in May.
KER-0193 “marks a significant milestone in our 2030 strategy, reinforcing our long-term commitment to establishing a leading neurology franchise focused on rare diseases,” Servier’s R&D chief Claude Bertrand said in the release.
Next year, Servier said it plans to take the drug into a Phase 2 trial in people with fragile X in the US and Europe.
Some companies have tried in the fragile X space, including
Ovid Therapeutics
,
Novartis
and Lysogene. Others are still in the field. Harmony Biosciences is
slated
to release topline data from a Phase 3 trial this quarter for a drug it got from its
Zynerba acquisition
.
Kaerus had kept relatively quiet over its nine-year history as it worked on creating a treatment to modulate BK channels that are tied to the genetic cause of fragile X.
The startup was incubated and mainly backed by Medicxi. The UK-based healthcare investment firm has seen other portfolio companies get acquired in the past two years, including vaccine maker
Vicebio
and antibody-drug conjugate startup
ProfoundBio
.
Kaerus has about a dozen employees and is led by CEO Robert Ring, who helped form Pfizer’s autism research unit and then went on to be the chief science officer at Autism Speaks, a patient-focused nonprofit and one of the largest autism research organizations in the US.
Ring was recruited to Kaerus, named after the youngest son of Zeus, about six and a half years ago. The biotech then brought KER-0193 into a healthy volunteer trial.
“We had achieved a proof of mechanism right out of our Phase 1 that really ramped up a lot of interest from companies,” Ring said in an interview with
Endpoints News
over the weekend. “We had been talking with companies prior to that. Our intention was to transact the company into the hands of a partner that really had that global presence and commitment to rare CNS.”
KER-0193 has secured orphan drug and rare pediatric drug designations from the FDA for fragile X.
Kaerus had been working on a few other projects, but mainly focused its efforts on fragile X. After the Servier deal closes, Kaerus will effectively wind down, Ring said.
“We have dabbled in other mechanisms, and not surprisingly as you’re working on chemistry, you find other things as you move forward, but really the entirety of Kaerus has been focused on the BK channel,” Ring said.