Two phase II stumbles for startup Cyclerion Therapeutics Inc., an Ironwood Pharmaceuticals Inc. spinout, crushed the stock (NADAQ:CYCN), which closed down a steep 79.5% on Wednesday.

TORONTO – Winnipeg, Manitoba-based Medicure Inc. said results of a study released last week could nudge the door open wider in the U.S. for a device adapted from the military to normalize lung fluid content in patients suffering from heart failure.

Corvia Medical Inc. is enrolling patients in a 100-site multinational study of its Interatrial Shunt Device that will measure traditional heart failure endpoints as well as biosensor data transmitted to the cloud for analysis by Napier, Ill.-based Physiq's artificial intelligence analytics. The trial will evaluate Tewksbury, Mass.-based Corvia's device in heart failure with preserved and mid-range ejection fraction.

The failure of Novartis AG's Entresto in a phase III clinical trial staggered the stock (NASDAQ:NVS) somewhat Monday, down just 1.14%, but the real trauma may well be the loss of roughly $2.5 billion in anticipated sales.