Chronic Low-back Pain — Comparison of Continuous and Burst High Frequency Spinal Cord Stimulation Paradigms
Citation(s)
Alo KM, Redko V, Charnov J Four Year Follow-up of Dual Electrode Spinal Cord Stimulation for Chronic Pain. Neuromodulation. 2002 Apr;5(2):79-88. doi: 10.1046/j.1525-1403.2002.02017.x.
Hayek SM, Veizi E, Hanes M Treatment-Limiting Complications of Percutaneous Spinal Cord Stimulator Implants: A Review of Eight Years of Experience From an Academic Center Database. Neuromodulation. 2015 Oct;18(7):603-8; discussion 608-9. doi: 10.1111/ner.12312. Epub 2015 Jun 5.
Turner JA, Loeser JD, Deyo RA, Sanders SB Spinal cord stimulation for patients with failed back surgery syndrome or complex regional pain syndrome: a systematic review of effectiveness and complications. Pain. 2004 Mar;108(1-2):137-47. doi: 10.1016/j.pain.2003.12.016.
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
