Endometriosis — Research OutSmarts Endometriosis II Study
Citation(s)
Aghajanova L, Giudice LC Molecular evidence for differences in endometrium in severe versus mild endometriosis. Reprod Sci. 2011 Mar;18(3):229-51. doi: 10.1177/1933719110386241. Epub 2010 Nov 9.
Ballard K, Lowton K, Wright J What's the delay? A qualitative study of women's experiences of reaching a diagnosis of endometriosis. Fertil Steril. 2006 Nov;86(5):1296-301. doi: 10.1016/j.fertnstert.2006.04.054.
Brosens I, Brosens JJ, Benagiano G The eutopic endometrium in endometriosis: are the changes of clinical significance? Reprod Biomed Online. 2012 May;24(5):496-502. doi: 10.1016/j.rbmo.2012.01.022. Epub 2012 Jan 31.
Chehna-Patel N, Sachdeva G, Gajbhiye R, Warty N, Khole V "Spot"-ting differences between the ectopic and eutopic endometrium of endometriosis patients. Fertil Steril. 2010 Nov;94(6):1964-71, 1971.e1. doi: 10.1016/j.fertnstert.2010.01.048. Epub 2010 Mar 16.
Drury JA, Parkin KL, Coyne L, Giuliani E, Fazleabas AT, Hapangama DK The dynamic changes in the number of uterine natural killer cells are specific to the eutopic but not to the ectopic endometrium in women and in a baboon model of endometriosis. Reprod Biol Endocrinol. 2018 Jul 18;16(1):67. doi: 10.1186/s12958-018-0385-3.
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.
