Pregnancy Related — Sleep and Tracking Effects in Pregnancy Study
Citation(s)
Muktabhant B, Lawrie TA, Lumbiganon P, Laopaiboon M Diet or exercise, or both, for preventing excessive weight gain in pregnancy. Cochrane Database Syst Rev. 2015 Jun 15;(6):CD007145. doi: 10.1002/14651858.CD007145.pub3. Review.
Muktabhant B, Lumbiganon P, Ngamjarus C, Dowswell T Interventions for preventing excessive weight gain during pregnancy. Cochrane Database Syst Rev. 2012 Apr 18;(4):CD007145. doi: 10.1002/14651858.CD007145.pub2. Review. Update in: Cochrane Database Syst Rev. 2015;(6):CD007145.
Olson CM, Strawderman MS, Reed RG Efficacy of an intervention to prevent excessive gestational weight gain. Am J Obstet Gynecol. 2004 Aug;191(2):530-6.
Wolf HT, Owe KM, Juhl M, Hegaard HK Leisure time physical activity and the risk of pre-eclampsia: a systematic review. Matern Child Health J. 2014 May;18(4):899-910. doi: 10.1007/s10995-013-1316-8. Review. Erratum in: Matern Child Health J. 2014 Oct;18(8):2020-3.
Improving Perinatal Outcomes Through Activity and Sleep Tracking
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.
