During the 1990s, medicinal chemist Anders Hallberg was working in his lab at the Department of Medicinal Chemistry. He was exploring a hormonal system in the body that regulates blood pressure, among other things, by designing different molecules. Thirty years later, one of these molecules has been developed into a drug candidate to treat a severe and incurable disease, idiopathic pulmonary fibrosis, and is now being tested on patients in multiple countries.