SAN ANTONIO —
Zealand Pharma, hoping to create the next “foundational” therapy for obesity, detailed more Phase 1 data on its amylin analog that was the backbone of a $1 billion raise this summer.
Researchers said Zealand’s drug, dubbed petrelintide, led to up to 8.6% mean weight loss in an early-phase trial. Also, all gastrointestinal disorders observed in the study were mild, save for a moderate case of nausea and a moderate incidence of vomiting. The data were presented Tuesday at the annual ObesityWeek conference in Texas.
Zealand initially
toplined the data
in June and quickly raised $1 billion for the “
crown jewel
.” Analysts have predicted petrelintide could reach peak sales of $10 billion.
At week 16 in the Phase 1, patients on 2.4 mg petrelintide lost a mean 4.8% body weight. The middle-dose group, 4.8 mg, lost the most at 8.6%, and the 9 mg group saw 8.3% reductions, the researchers said. The drop was 1.7% for the placebo cohort.
Petrelintide could potentially have GLP-1-like weight loss of 15% to 20% in larger studies, Zealand chief medical officer David Kendall told
Endpoints News
on the sidelines of the conference. It also believes amylin agonists could help preserve lean muscle mass, an issue that has come up with the GLP-1 class.
The company will dose the first patient in a Phase 2 trial in the coming days or weeks, Kendall said. The study will “elucidate” the differences between the 4.8 mg and 9 mg doses, he said.
Zealand is positioning the drug as a potential standalone replacement for GLP-1s or as the first medicine that patients go to for obesity, but the company isn’t excluding the opportunity to combine with GLP-1s or other mechanisms, Kendall said.
Novo Nordisk and Eli Lilly have dominated the field so far, but their GLP-1-based medicines carry GI tolerability baggage, among other challenges.
Rather than suppress appetite and give patients a “food aversion” signal like the GLP-1s, amylin emphasizes the satiety signal, Kendall said. In his career, he’s worked in both the amylin field at Amylin Pharmaceuticals and on GLP-1s and other mechanisms at Lilly.
“If you’ve had a meal here in Texas, you know what satiety feels like. That sense of, I’ve had enough, maybe a little bit too much,” Kendall said. “It actually enhances that signal so you don’t have that same food aversion, the lack of interest. So people tend to eat.”
Petrelintide has a 240-hour half-life, or about 10 days, Kendall said.
Novo, Lilly, AstraZeneca and multiple other drugmakers are also working on amylin. The field awaits a key Phase 3 readout this quarter from Novo’s CagriSema, a combination of the amylin asset cagrilintide and its blockbuster semaglutide.
Novo’s amylin drug “will always be tied to semaglutide,” Kendall said. “We see petrelintide as the next potentially foundational class of therapies going forward. I know it seems maybe aspirational to say over and above what is a pretty successful GLP-1-based therapeutic class.”
Structure Therapeutics, which plans to start testing its amylin candidate in humans next year, is looking up to Zealand’s progress.
“Zealand is probably the pioneer in terms of pushing the monotherapy as part of their strategy,” Structure CEO Raymond Stevens said in an interview on the sidelines of the conference. “Some of the hypothesis is: amylin has the potential for better tolerability by itself, amylin alone, versus GLP-1.”
As Zealand works on the Phase 2, it is looking for a large pharma to help carry petrelintide into Phase 3 and make it a standalone drug. With a fresh $1 billion, though, Zealand is “not backs-against-the-wall,” Kendall said. “The most important thing is not just to find someone with lots of people and deep pockets, but someone who believes in the positioning we’ve talked about.”
Zealand already has a partner for its lead obesity drug, the Boehringer Ingelheim-allied survodutide, a glucagon/GLP-1 receptor dual agonist.