An Experimental Single-Time Treatment Slashed Cholesterol for a Year NYT > Top Stories By: Carolyn Y. Johnson 28 August 2026 at 17:30 A small gene-editing study significantly reduced LDL cholesterol levels, and the results have stuck a year later. Β© Juan Gaertner/Science Photo Library, via AlamyAn illustration of βbadβ cholesterol molecules, in yellow, binding to receptors, in blue-purple. In the study, patients saw their βbadβ LDL cholesterol and triglycerides levels drop by up to 50 percent β and remain steady a year later.