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Clinical Trials

Date: 2016-03-02

Type of information: Results

phase: 2

Announcement: results

Company: Zealand Pharma (Denmark)

Product: danegaptide

Action mechanism:

peptide. Danegaptide is a small dipeptide invented by Zealand Pharma. The drug candidate works as a gap junction modifier with cardio protective properties. It has been developped in a research collaboration and license agreement with Wyeth. Following the acquisition of Wyeth by Pfizer in 2009, active development of danegaptide was halted. Pfizer had previously announced that it was ceasing all development in the cardiovascular area. Zealand Pharma retains global rights to the product.

Disease: ischemic reperfusion injury

Therapeutic area: Cardiovascular diseases

Country: Denmark

Trial details:

The trial was a conducted at Rigshospitalet in Copenhagen as a single center clinical Proof-of-Concept trial. A total of
585 patients (Intention to treat, ITT) with clinical signs and electrocardiographic (ECG) changes indicating ongoing STelevation myocardial infarction (STEMI) were enrolled in the trial. All patients were randomized to two different dose levels of danegaptide or placebo, administered at least 10 minutes prior to undergoing the standard treatment of primary percutaneous coronary intervention (pPCI) to restore blood flow.
The primary efficacy endpoint of the Phase II trial was the myocardial salvage index (MSI), measured in a subset of
patients, fulfilling predefined criteria for undergoing cardiac magnetic resonance imaging (cMRI) (per protocol, N=169).
MSI is defined as the absolute difference in size between myocardial tissue volume at risk, measured at day 2 (after PCI)
and final infarct size, measured at day 90 (after PCI), relative to myocardial tissue volume at risk.
Secondary trial endpoints included cardiac biomarkers, ST-segment resolution and left ventricular ejection fraction, as
well as evaluation of relevant safety parameters.

Latest news:

* On March 2, 2016, Zealand Pharma announced top-line results from its clinical Phase II Proof-of-Concept trial with danegaptide for the protection against cardiac reperfusion injuries in patients with an acute myocardial infarction. Results show no effect of danegaptide on the primary endpoint of saving cardiac tissue from ischemic reperfusion injuries as measured on the Myocardial Salvage Index (MSI). Danegaptide has demonstrated cell protective and anti-arrhythmic properties and shown significant effect in established preclinical models of cardiac ischemic reperfusion injuries. Despite substantial improvements in the treatment of patients with ST-elevation myocardial infarction (STEMI), danegaptide didn't demonstrate a therapeutic benefit to patients.  Results from the trial showed no effect for danegaptide compared to placebo on the primary endpoint of MSI as a measure for cardiac tissue salvage, when added to the standard therapy provided. Data from secondary efficacy endpoints were consistent with the results on the primary endpoint. In the trial, danegaptide demonstrated to be safe and well tolerated.
Zealand will evaluate the complete data set and discuss with key medical experts to review all aspects of the trial outcome.

* On October 29, 2014, Zealand Pharma announced that the company presented a case study on danegaptide as a novel and innovative peptide therapeutic and potential first-in-class gap junction modifier at the 9th Annual Peptide Therapeutics Symposium, which recently took place in La Jolla, California, the U.S. In the presentation, entitled “Danegaptide - Potential First and Best in Class Peptide Medicine for Prevention of Myocardial Reperfusion Injury”, Rie Schultz Hansen, Principal Scientist at Zealand, outlined that danegaptide has both anti-arrhythmic and cell-protective properties, and that this novel peptide has been shown to protect cardiac tissue in preclinical models of ischemic reperfusion injuries, causing significant reductions in infarct sizes in both dogs and pigs. Further, she presented the design and status of the ongoing clinical Phase II Proof-of-concept trial on danegaptide, conducted by Zealand in collaboration with Rigshospitalet in Denmark, one of Europe’s leading cardiac centres with key expertise in Acute Myocardial Infarction (AMI). To date, more than 50% of the targeted 600 patients with an AMI have been enrolled and treated, and the study is on track to complete and report results in H2 2015.

In collaboration with the Copenhagen University, Zealand also has a project ongoing to investigate the full therapeutic potential of danegaptide as a novel approach in the protection of tissue from ischemic reperfusion injuries. The project was selected by the Danish Innovation Fund (InnovationsFonden) to receive a DKK 1 million grant.

* On November 20, 2013, Zealand Pharma has announced that the first patient has been treated in a Phase II Clinical Proof-of-Concept study of danegaptide. The objective of this Phase II study is to assess the efficacy and safety of danegaptide in reducing tissue damage from reperfusion injuries in patients with an acute myocardial infarction (ST-segment elevation myocardial infarction, STEMI) when added to standard treatment in the form of balloon dilatation (primary PCI). Danegaptide has shown promising therapeutic properties in several relevant preclinical MI models assessing cardiac reperfusion injury. In a Phase I program, including 153 healthy subjects in three studies, danegaptide has been shown to be safe and well tolerated. The danegaptide Phase II Clinical Proof-of-Concept study is expected to complete in the 2nd half of 2015.

* On March 8, 2013, Zealand Pharma has presented a pipeline update. The company has announced that it will advance danegaptide into a clinical efficacy study to further profile and build evidence for the potential of this drug candidate as a novel approach in the prevention and treatment of ischemic reperfusion injury following a heart attack.
The study is planned as a randomized, placebo-controlled Phase IIa proof-of-concept study of danegaptide to be conducted at a single site with renowned experience in heart attack studies. The study is expected to include several hundred patients with a heart attack, and has as primary objective to measure reduction of cardiac infarct size as a validated surrogate marker for mortality and morbidity outcomes following a cardiac event.
The study is expected to start in Q4 2013.





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