Huntington’s disease is a fatal hereditary disease that results in the progressive breakdown of nerve cells in the brain. It erodes a person’s physical and mental abilities, usually beginning in their 30s and 40s, and to date has no cure. Now Austin-based Asuragen Inc. is joining forces with Wave Life Sciences USA Inc., of Cambridge, Mass., to develop companion diagnostics (CDx) for Wave’s investigative allele-selective therapeutic programs targeting the genetic cause of the disease.