Key Takeaways VRTX stock fell on trial failures in acute pain, diabetes and neuropathic pain programs.CF sales remain strong with Trikafta and Alyftrek driving demand across younger age groups.New launches Journavx and Casgevy boost growth potential, though uptake is still building.Vertex Pharmaceuticals Incorporated (VRTX) stock has declined 23.6% in the past six months, mainly due to recent pipeline setbacks.In August 2025, Vertex’s phase II study on the oral formulation of next-gen Nav1.8 inhibitor, VX-9 ...