Healthy — Healthy Volunteer Study to Assess Microcirculatory Function
Citation(s)
Awan ZA, Haggblad E, Wester T, Kvernebo MS, Halvorsen PS, Kvernebo K Diffuse reflectance spectroscopy: Systemic and microvascular oxygen saturation is linearly correlated and hypoxia leads to increased spatial heterogeneity of microvascular saturation. Microvasc Res. 2011 May;81(3):245-51. doi: 10.1016/j.mvr.2011.02.004. Epub 2011 Mar 2.
Bungum L, Kvernebo K, Oian P, Maltau JM Laser doppler-recorded reactive hyperaemia in the forearm skin during the menstrual cycle. Br J Obstet Gynaecol. 1996 Jan;103(1):70-5. doi: 10.1111/j.1471-0528.1996.tb09517.x.
Fredly S, Fugelseth D, Nygaard CS, Salerud EG, Stiris T, Kvernebo K Noninvasive assessments of oxygen delivery from the microcirculation to skin in hypothermia-treated asphyxiated newborn infants. Pediatr Res. 2016 Jun;79(6):902-6. doi: 10.1038/pr.2016.16. Epub 2016 Feb 8.
Fredly S, Fugelseth D, Wester T, Haggblad E, Kvernebo K Skin microcirculation in healthy term newborn infants--assessment of morphology, perfusion and oxygenation. Clin Hemorheol Microcirc. 2015;59(4):309-22. doi: 10.3233/CH-131764.
Mork C, Asker CL, Salerud EG, Kvernebo K Microvascular arteriovenous shunting is a probable pathogenetic mechanism in erythromelalgia. J Invest Dermatol. 2000 Apr;114(4):643-6. doi: 10.1046/j.1523-1747.2000.00944.x.
Mork C, Kvernebo K, Asker CL, Salerud EG Reduced skin capillary density during attacks of erythromelalgia implies arteriovenous shunting as pathogenetic mechanism. J Invest Dermatol. 2002 Oct;119(4):949-53. doi: 10.1046/j.1523-1747.2002.00218.x.
Mork C, Salerud EG, Asker CL, Kvernebo K The prostaglandin E1 analog misoprostol reduces symptoms and microvascular arteriovenous shunting in erythromelalgia-a double-blind, crossover, placebo-compared study. J Invest Dermatol. 2004 Mar;122(3):587-93. doi: 10.1111/j.0022-202X.2004.22339.x.
Staxrud LE, Jakobsson A, Kvernebo K, Salerud EG Spatial and temporal evaluation of locally induced skin trauma recorded with laser Doppler techniques. Microvasc Res. 1996 Jan;51(1):69-79. doi: 10.1006/mvre.1996.0008.
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.
