Systemic Sclerosis — Mouth Handicap in Systemic Sclerosis
Citation(s)
Maddali Bongi S, Del Rosso A, Miniati I, Galluccio F, Landi G, Tai G, Matucci-Cerinic M The Italian version of the Mouth Handicap in Systemic Sclerosis scale (MHISS) is valid, reliable and useful in assessing oral health-related quality of life (OHRQoL) in systemic sclerosis (SSc) patients. Rheumatol Int. 2012 Sep;32(9):2785-90. doi: 10.1007/s00296-011-2049-x. Epub 2011 Aug 17.
Naylor WP, Douglass CW, Mix E The nonsurgical treatment of microstomia in scleroderma: a pilot study. Oral Surg Oral Med Oral Pathol. 1984 May;57(5):508-11.
Scardina GA, Messina P Systemic sclerosis: description and diagnostic role of the oral phenomena. Gen Dent. 2004 Jan-Feb;52(1):42-7.
Schouffoer AA, Strijbos E, Schuerwegh AJ, Mouthon L, Vliet Vlieland TP Translation, cross-cultural adaptation, and validation of the Mouth Handicap in Systemic Sclerosis questionnaire (MHISS) into the Dutch language. Clin Rheumatol. 2013 Nov;32(11):1649-55. doi: 10.1007/s10067-013-2321-4. Epub 2013 Jul 24.
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.
