nHCM
Non-Obstructive
Hypertropic Cardiomyopathy
HYPERTROPHIC CARDIOMYOPATHY
Hypertrophic cardiomyopathy (HCM) is a genetic disease where the heart’s main pumping chambers, the ventricles, become abnormally thickened. HCM can affect people of any age, but it is more likely as age increases. It is most often diagnosed in middle age, and symptoms can vary widely.
One of the key issues in HCM is a deficiency in cardiac energy, resulting from increased energy demands during contraction, and inefficient energy utilization by the cardiac muscle. This energy deficiency has a significant impact on the functioning of the heart, impairing the relaxation and filling of the heart, and leading to symptoms such as breathlessness and reduced exercise capacity. Impaired energetics occurs early in the progression of HCM, even before the development of heart muscle thickening.
NON-OBSTRUCTIVE HCM
There are two types of HCM: obstructive HCM and non-obstructive.
Within HCM, patients who have no left ventricular outflow tract obstruction at rest or after provocation are referred to as having non-obstructive disease (nHCM). In nHCM, the thickened heart muscle makes it harder for the heart to relax and fill properly between beats. Over time, this can place extra stress on the heart, limit the blood flow the body receives, and lead to a high burden of heart failure symptoms such as shortness of breath, fatigue, and irregular heart rhythms.
Despite the significant impact of this condition, there are no approved treatments available.

FORTITUDE-HCM
Imbria is conducting FORTITUDE-HCM (NCT07023614), a global Phase 2b, randomized, double-blinded, placebo-controlled trial to evaluate the efficacy and safety of ninerafaxstat in patients with symptomatic nHCM.

IMPROVE-HCM
Clinical trial results from our completed IMPROVE-HCM Phase 2a clinical trial were published in the Journal of the American College of Cardiology.
References: C. Semsarian et al. J Am Coll Cardiol, 65 (2015), pp. 1249-1254; Maron MS et al. Circulation. 2006 Nov 21;114(21):2232-9.