Stroke, Acute — Evaluation of Stroke Patient Screening
Citation(s)
AVERT Trial Collaboration group Efficacy and safety of very early mobilisation within 24 h of stroke onset (AVERT): a randomised controlled trial. Lancet. 2015 Jul 4;386(9988):46-55. doi: 10.1016/S0140-6736(15)60690-0. Epub 2015 Apr 16. Erratum in: Lancet. 2015 Jul 4;386(9988):30. Erratum in: Lancet. 2017 May 13;389(10082):1884.
Held JPO, van Duinen J, Luft AR, Veerbeek JM Eligibility Screening for an Early Upper Limb Stroke Rehabilitation Study. Front Neurol. 2019 Jul 2;10:683. doi: 10.3389/fneur.2019.00683. eCollection 2019.
Stinear C, Ackerley S, Byblow W Rehabilitation is initiated early after stroke, but most motor rehabilitation trials are not: a systematic review. Stroke. 2013 Jul;44(7):2039-45. doi: 10.1161/STROKEAHA.113.000968. Epub 2013 May 28. Review.
Winters C, van Wegen EE, Daffertshofer A, Kwakkel G Generalizability of the Proportional Recovery Model for the Upper Extremity After an Ischemic Stroke. Neurorehabil Neural Repair. 2015 Aug;29(7):614-22. doi: 10.1177/1545968314562115. Epub 2014 Dec 11.
Evaluation of Stroke Patient Screening in an Acute Stroke Setting
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.
