Vulvodynia — Diagnostic Accuracy of "Three Rings Vulvoscopy" for Detection of Vulvar Dermatosis
Citation(s)
Ball SB, Wojnarowska F Vulvar dermatoses: lichen sclerosus, lichen planus, and vulval dermatitis/lichen simplex chronicus. Semin Cutan Med Surg. 1998 Sep;17(3):182-8.
Cooper SM, Ali I, Baldo M, Wojnarowska F The association of lichen sclerosus and erosive lichen planus of the vulva with autoimmune disease: a case-control study. Arch Dermatol. 2008 Nov;144(11):1432-5. doi: 10.1001/archderm.144.11.1432.
Raspollini MR, Asirelli G, Moncini D, Taddei GL A comparative analysis of lichen sclerosus of the vulva and lichen sclerosus that evolves to vulvar squamous cell carcinoma. Am J Obstet Gynecol. 2007 Dec;197(6):592.e1-5. Epub 2007 Aug 21.
Shier M, El-Khatib S Vulvar lichen sclerosus. J Obstet Gynaecol Can. 2010 Oct;32(10):929-30. English, French.
Diagnostic Accuracy of "Three Rings Vulvoscopy" for Detection of Vulvar Dermatosis
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.
