Chronic Pain — Exploratory Evaluation of [11C]-NOP46
Citation(s)
Centers for Disease Control and Prevention (CDC) Vital signs: overdoses of prescription opioid pain relievers---United States, 1999--2008. MMWR Morb Mortal Wkly Rep. 2011 Nov 4;60(43):1487-92.
Jamison RN, Serraillier J, Michna E Assessment and treatment of abuse risk in opioid prescribing for chronic pain. Pain Res Treat. 2011;2011:941808. doi: 10.1155/2011/941808. Epub 2011 Oct 11.
Pike VW PET radiotracers: crossing the blood-brain barrier and surviving metabolism. Trends Pharmacol Sci. 2009 Aug;30(8):431-40. doi: 10.1016/j.tips.2009.05.005. Epub 2009 Jul 16.
Voscopoulos C, Lema M When does acute pain become chronic? Br J Anaesth. 2010 Dec;105 Suppl 1:i69-85. doi: 10.1093/bja/aeq323.
Exploratory Evaluation of [11C]-NOP46 Pharmacokinetics With Positron Emission Tomography (PET)
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.
