Hearing Loss, Bilateral (Causes Other Than Tumors) — Auditory Brainstem Implant (ABI) in Children With No Cochleae or Auditory Nerves
Citation(s)
Colletti L, Shannon RV, Colletti V The development of auditory perception in children after auditory brainstem implantation. Audiol Neurootol. 2014;19(6):386-94. doi: 10.1159/000363684. Epub 2014 Nov 4.
Colletti L, Wilkinson EP, Colletti V Auditory brainstem implantation after unsuccessful cochlear implantation of children with clinical diagnosis of cochlear nerve deficiency. Ann Otol Rhinol Laryngol. 2013 Oct;122(10):605-12.
Colletti L, Zoccante L Nonverbal cognitive abilities and auditory performance in children fitted with auditory brainstem implants: preliminary report. Laryngoscope. 2008 Aug;118(8):1443-8. doi: 10.1097/MLG.0b013e318173a011.
Colletti V, Shannon R, Carner M, Veronese S, Colletti L Outcomes in nontumor adults fitted with the auditory brainstem implant: 10 years' experience. Otol Neurotol. 2009 Aug;30(5):614-8. doi: 10.1097/MAO.0b013e3181a864f2.
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.
