HTT and Alzheimer disease: However, these medications only alleviate the symptoms of AD and do not provide a cure or preventive measures against the disease itself.8 Potential interventions for HD include therapies targeting huntingtin DNA and RNA, clearance of huntingtin protein, DNA repair pathways, and other treatment strategies targeting inflammation and cell death.9 For ALS, survival can be improved through supportive and symptomatic care delivered by a multidisciplinary team of experts.