Dallimore D, Herd DW, Short T, Anderson BJ Dosing ketamine for pediatric procedural sedation in the emergency department. Pediatr Emerg Care. 2008 Aug;24(8):529-33. doi: 10.1097/PEC.0b013e318180fdb5.
Malamed SF Sedation: A Guide to Patient Management. New York, NY: CV: Mosby-Year Book Inc; 1995. 3rd ed.
Ochs-Ross R,et al Efficacy and safety of intranasal esketamine plus an oral antidepressant in eldely patients with treatment-resistant depression.Poster PS066 presented at CINP 2018,16-19 june, Vienna, Austria.
Lecturer of Anesthesia ,Intensive Care and Pain Management in Faculty of Medicine Ain Shams University
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.
