cell therapy
Kyverna's cell therapy shows lasting autoimmune benefit
From STAT’s Allison DeAngelis: Kyverna Therapeutics is one step closer to launching the first cell therapy for an autoimmune disease, with new data in hand showing many patients remained off of other therapies a year after treatment. In fact, patients continued to improve months after the single-shot treatment.
The startup knew its treatment for stiff person syndrome worked. In April, Kyverna reported it planned to seek approval after its clinical trial hit the mark. But the new data released today offers insight into just how well the therapy functioned in the long term. Patients who had received one dose of miv-cel a year prior showed a median 49% improvement in a common assessment of leg function, a timed 25-foot walk test. Those same patients had shown a 46% improvement at the 16-week mark.
The data show that the treatment’s effects can not only continue, but can also deepen over time, Kyverna CEO Warner Biddle said. His company plans to submit the data as part of a rolling drug application it started in the spring and anticipates completing it by the end of the year.
Kyverna had taken a different tactic than many other autoimmune drug developers. The company started off treating stiff person syndrome, a rare neurological disease that causes muscle stiffness and spasms, leading to a progressive launch of mobility and function. It affects an estimated 5,000 people in the United States.
In comparison, many of Kyverna’s contemporaries have chosen to start off with more prevalent autoimmune conditions with lupus or myasthenia gravis. Kyverna is also developing miv-cel as a treatment for myasthenia gravis, anticipating that it can tack that on to miv-cel’s label, should it get approved by the FDA.
The new data came through as one of the most prominent faces of stiff person syndrome — legendary singer Celine Dion — kicked off a tour in Paris, her first since announcing her diagnosis publicly. Through her foundation, Dion established an endowed chair at the University of Colorado. The inaugural chair holder, Amanda Piquet, served as the lead investigator on Kyverna’s trial.
When asked about Dion’s connection to the trial and whether she had tried miv-cel, Biddle said he could not comment on the chanteur's personal health, but was very grateful for the awareness she’s raised about the disease.
autoimmune disease
Gilead is betting big on autoimmune drug data
Gilead is talking up its years-long push into inflammation and immunology ahead of a key pressure test later this year, STAT’s Adam Feuerstein writes in his Biotech Scorecard newsletter. It’s buzzing about its Phase 2 data for emvistegrast, an oral drug for ulcerative colitis that works similarly to Takeda’s blockbuster Entyvio.
“It’s one of the three scientific areas that are our core focus,” Gilead CFO Andy Dickinson told investors at the Cantor Global Healthcare Conference earlier this month. “We’re the largest virology company. We’ve built a robust oncology business. The third leg of the stool, so to speak, is the I&I [inflammation and immunology] business that we’re growing.”
Results from the closely watched 229-patient study could help determine how aggressively Gilead builds out that “third leg.”
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