Clinical Development

Study milestones

Q4 2019

Q4 2019

Phase 1 study completed

A randomized study of 14 healthy volunteers and 30 patients with stable coronary artery disease taking aspirin showed that zalunfiban administered subcutaneously provided rapid, high-grade, limited-duration platelet inhibition while being well tolerated.

Link to Article

Q1 2020

Q1 2020

Phase 2A study completed

The open-label, randomized study assessed the onset of platelet aggregation inhibition after a single subcutaneous injection in 27 adults with STEMI just prior to PCI. Zalunfiban provided rapid and potent platelet inhibition, with a return to 50% of platelet function within about two hours.

Link to Article

Q2 2021

Q2 2021

CeleBrate launches as Phase 2B study

CeleCor designs a randomized, placebo-controlled clinical trial to study zalunfiban or placebo, subcutaneously injected in STEMI patients treated in ambulances at the first point of contact. The primary endpoints were based on ECG and angiographic outcomes.

Q1 2022

Q1 2022

CeleBrate trial status changed to Phase 3 pivotal clinical trial

CeleCor modifies CeleBrate’s primary endpoints to a seven-point clinical scale and designates as a Phase 3 pivotal clinical trial after discussion with regulatory agencies.

Link to Clinical Trial

Today

Today

Phase 3 data presented at AHA Scientific Sessions

Positive results from the pivotal study presented during the American Heart Association’s Late-Breaking Sessions on Nov. 10, 2025. Study results published simultaneously in The New England Journal of Medicine Evidence.

Link to Press Release

CeleBrate: CeleCor’s Phase
3 trial of zalunfiban

Learn more about CeleBrate