Depressive Disorder — Establish a Specific Cohort Database for Depressive Disorders
Citation(s)
Anoushiravani AA, Patton J, Sayeed Z, El-Othmani MM, Saleh KJ Big Data, Big Research: Implementing Population Health-Based Research Models and Integrating Care to Reduce Cost and Improve Outcomes. Orthop Clin North Am. 2016 Oct;47(4):717-24. doi: 10.1016/j.ocl.2016.05.008. Epub 2016 Aug 8. Review.
Gunaratne P, Lloyd AR, Vollmer-Conna U Mood disturbance after infection. Aust N Z J Psychiatry. 2013 Dec;47(12):1152-64. doi: 10.1177/0004867413503718. Epub 2013 Sep 20. Review.
Kessler RC, Chiu WT, Demler O, Merikangas KR, Walters EE Prevalence, severity, and comorbidity of 12-month DSM-IV disorders in the National Comorbidity Survey Replication. Arch Gen Psychiatry. 2005 Jun;62(6):617-27. Erratum in: Arch Gen Psychiatry. 2005 Jul;62(7):709. Merikangas, Kathleen R [added].
Reppermund S, Ising M, Lucae S, Zihl J Cognitive impairment in unipolar depression is persistent and non-specific: further evidence for the final common pathway disorder hypothesis. Psychol Med. 2009 Apr;39(4):603-14. doi: 10.1017/S003329170800411X. Epub 2008 Jul 30.
Establish a Specific Cohort Database for Depressive Disorders
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.
