GSK plc (GSK) announced that its therapeutic herpes simplex virus (HSV) vaccine candidate, GSK3943104, did not meet the primary endpoint in the combined phase I/II proof-of-concept study. The phase I/II TH HSV REC-003 study evaluated the clinical efficacy of the early-stage HSV vaccine candidate GSK3943104. The company completed the primary objective data analysis from the phase II part of the phase I/II TH HSV REC-003 study, which demonstrated that GSK3943104 failed to meet the study's primary efficacy end ...