Vertex Advances Inaxaplin (VX-147) into Phase 3 Portion of Adaptive Phase 2/3 Clinical Trial for the Treatment of APOL1-Mediated Kidney Disease - Seite 2

The U.S. Food and Drug Administration (FDA) has granted inaxaplin Rare Pediatric Disease Designation (RPD) and Breakthrough Therapy Designation (BTD) for APOL1-mediated focal segmental glomerulosclerosis (FSGS). The European Medicines Agency (EMA) has also granted inaxaplin Priority Medicines (PRIME) and Orphan Drug designations for AMKD.

About the Phase 2/3 AMPLITUDE Study

Inaxaplin is a potential first-in-class, investigational small molecule inhibitor of APOL1 with the goal of targeting the underlying cause of APOL1-mediated kidney disease (AMKD).

The primary efficacy endpoint for the final analysis is estimated glomerular filtration rate (eGFR) slope in patients receiving inaxaplin compared to placebo. The secondary efficacy endpoint is time to composite clinical outcome, which will also be assessed at the final analysis and is defined as a sustained decline of ≥30% from baseline in the eGFR, the onset of end-stage kidney disease or death. The final study analysis will occur when subjects have at least two years of eGFR data and when approximately 187 composite clinical outcomes have occurred.

The study is also designed to have a pre-planned interim analysis at Week 48 evaluating eGFR slope, supported by a percent change from baseline in proteinuria in the inaxaplin arm versus placebo. If positive, the interim analysis may serve as the basis for Vertex to seek accelerated approval of inaxaplin in the U.S. for patients with AMKD.

Enrollment in the study is ongoing, with more than 200 sites open in the U.S. and internationally.

About APOL1-Mediated Kidney Disease

APOL1-mediated kidney disease (AMKD) is a form of chronic kidney disease caused by variants in the APOL1 gene. Approximately 100,000 people in the U.S. and Europe have two APOL1 genetic variants and proteinuric kidney disease. People who inherit two variants in the APOL1 gene have a course of disease that is far more aggressive than in the absence of APOL1 genetic variants. Inherited APOL1 genetic variants may lead to kidney cell injury, cell death and damage to the glomeruli (which filter blood in the kidney). This leads to protein in the urine (known as “proteinuria”) and decreased ability of the kidney to function, which can lead to dialysis, transplant or death.