Intervertebral Disc Degeneration — Comparison of nanOss Cervical IBF System to C-Plus PEEK IBF Device With Autograft
Citation(s)
Kim SC, Kang SW, Kim SH, Cho KH, Kim SH Clinical and radiological outcomes of anterior cervical interbody fusion using hydroxyapatite spacer. J Korean Neurosurg Soc. 2009 Oct;46(4):300-4. doi: 10.3340/jkns.2009.46.4.300. Epub 2009 Oct 31. Erratum in: J Korean Neurosurg Soc. 2009 Nov;46(5):511.
Zhao Z, Jiang D, Ou Y, Tang K, Luo X, Quan Z A hollow cylindrical nano-hydroxyapatite/polyamide composite strut for cervical reconstruction after cervical corpectomy. J Clin Neurosci. 2012 Apr;19(4):536-40. doi: 10.1016/j.jocn.2011.05.043. Epub 2012 Feb 3.
Post Market Comparison of nanOss Cervical Interbody Fusion System to C-Plus Interbody Fusion Device With Autograft
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.
