For Verve Therapeutics Inc., the good news was the first human proof-of-concept data for a single-course in vivo base-editing treatment, presented at the American Heart Association Scientific Sessions over the weekend, showed treatment with VERVE-101 led to promising dose-dependent reductions in low-density lipoprotein cholesterol in patients with heterozygous familial hypercholesterolemia. The bad news was to be found in the safety data for the 10 patients treated to date, which included a myocardial infarction in one patient deemed potentially related to treatment.