The first human trial of gene therapy for chronic pain, a phase 1 study of a nonreplicating herpes simplex virus (HSV)-based vector engineered to express preproenkephalin in patients with intractable pain from cancer, began enrolling subjects in December 2008. In this article, we describe the rationale underlying this potential approach to treatment of pain, the preclinical animal data in suppo...

Patients continue to suffer from pain despite their analgesic regimen and frequently from symptoms related to these interventions. This article describes the role that intrathecal analgesia may play in improving comfort for individuals experiencing refractory pain and/or symptoms of opioid therapy. Patient selection, staff education, institution requirements, medications, and titration guidelin...

OBJECTIVE Preclinical evidence indicates that gene transfer to the dorsal root ganglion using replication-defective herpes simplex virus (HSV)-based vectors can reduce pain-related behavior in animal models of pain. This clinical trial was carried out to assess the safety and explore the potential efficacy of this approach in humans. METHODS We conducted a multicenter, dose-escalation, phase ...