VERVE-101, a single-course in vivo liver base editing medicine, is currently being evaluated in our Heart-1 Phase 1b clinical trial in patients with high-risk heterozygous familial hypercholesterolemia (HeFH), established atherosclerotic cardiovascular disease (ASCVD), and uncontrolled LDL-C levels on oral standard-of-care therapy.
HeFH is characterized by extremely high LDL-C levels in the blood that, over time, cause plaque to build up in the arteries, resulting in reduced blood flow or blockage. This significantly increases an individual’s risk for heart attack and stroke. Inactivation of the PCSK9 gene in the liver can be effective in lowering LDL-C levels.
VERVE-101: Heart-1 clinical data supports proof-of-concept for in vivo base editing of the PCSK9 gene in the liver
The Heart-1 trial is designed to evaluate the safety and tolerability of VERVE-101, along with analyses of pharmacokinetics and changes in blood PCSK9 protein and LDL-C.
In November 2023, we presented an interim dataset at the American Heart Association (AHA) Scientific Sessions 2023. Initial results from the Heart-1 trial indicated that treatment with VERVE-101 led to dose-dependent reductions of disease-causing LDL-C in people living with HeFH, and the safety profile was consistent with the severe, advanced ASCVD patient population enrolled.
See full results from the interim dataset here.
In April 2024, we announced that three additional patients have been dosed in the 0.45 mg/kg cohort, with a total of 13 patients dosed in the trial (0.1 mg/kg [n=3], 0.3 mg/kg [n=3], 0.45 mg/kg [n=6], and 0.6 mg/kg [n=1]). For the first five participants in the 0.45 mg/kg cohort with follow-up to at least 28 days, VERVE-101 demonstrated time-averaged LDL-C reductions ranging from 21% to 73%, and averaging 46% (as of a data cut-off date of March 18, 2024). In the two patients with the longest follow-up in the 0.45 mg/kg or 0.6 mg/kg cohorts, LDL-C lowering has been durable out to 270 days, with follow-up ongoing.
However, due to observed laboratory abnormalities associated with VERVE-101, Verve has decided to pause enrollment in the Heart-1 trial. Verve is conducting an investigation into the laboratory abnormalities and based on those results, expects to work with regulatory authorities to define a path forward for VERVE-101. The VERVE-101 Investigational New Drug Application (IND) in the U.S. and Clinical Trial Applications (CTAs) in the U.K. and New Zealand remain active.