When some former MyoKardia execs reunited with
$300 million
for a new “heart health” biotech earlier this year, they were
tight-lipped
about their in-licensed clinical-stage assets.
The company, called Kardigan, has now quietly disclosed one of the drugs in its pipeline.
The startup is putting tonlamarsen, an investigational antisense medicine for adults with uncontrolled hypertension, into a
Phase 2 trial
, according to the US clinical trials database. The trial will compare a monthly under-the-skin administration of tonlamarsen versus placebo in about 700 patients. It’s slated to wrap up in February 2027.
The experimental medicine comes from Ionis Pharmaceuticals, which
is focusing on launching new medicines on its own
after decades as one of the leading RNA biotechs.
A Kardigan spokesperson told
Endpoints News
that tonlamarsen is one of several cardiovascular therapies that Kardigan is developing. An Ionis spokesperson confirmed that Kardigan received the exclusive global development and commercialization rights to the treatment candidate.
Ionis took tonlamarsen (formerly ION904) through a much smaller, 48-person
Phase 2
study in 2022. At the American Heart Association’s annual confab in November 2023, the company said the mid-stage trial showed ION904 had “significantly reduced” levels of angiotensinogen (AGT) versus placebo. The drug aims to reduce blood pressure by inhibiting AGT production, Ionis has said.
Tassos Gianakakos, who steered MyoKardia to a $13 billion exit to Bristol Myers Squibb in 2020, is CEO and chair of Kardigan. The heart drug at the center of that deal was subsequently approved as Camzyos.
As for Kardigan, Gianakakos and team reeled in $300 million in January from Perceptive Advisors, ARCH Venture Partners and Sequoia Heritage to build out a pipeline of cardio drugs through a mix of internal R&D and “strategic in-licensing and acquisitions.”