COVID-19 — Telmisartan in Respiratory Failure Due to COVID-19
Citation(s)
Bavishi C, Maddox TM, Messerli FH Coronavirus Disease 2019 (COVID-19) Infection and Renin Angiotensin System Blockers. JAMA Cardiol. 2020 Jul 1;5(7):745-747. doi: 10.1001/jamacardio.2020.1282. No abstract available.
Patel AB, Verma A COVID-19 and Angiotensin-Converting Enzyme Inhibitors and Angiotensin Receptor Blockers: What Is the Evidence? JAMA. 2020 May 12;323(18):1769-1770. doi: 10.1001/jama.2020.4812. No abstract available.
Rothlin RP, Vetulli HM, Duarte M, Pelorosso FG Telmisartan as tentative angiotensin receptor blocker therapeutic for COVID-19. Drug Dev Res. 2020 Nov;81(7):768-770. doi: 10.1002/ddr.21679. Epub 2020 May 1.
Sanchis-Gomar F, Lavie CJ, Perez-Quilis C, Henry BM, Lippi G Angiotensin-Converting Enzyme 2 and Antihypertensives (Angiotensin Receptor Blockers and Angiotensin-Converting Enzyme Inhibitors) in Coronavirus Disease 2019. Mayo Clin Proc. 2020 Jun;95(6):1222-1230. doi: 10.1016/j.mayocp.2020.03.026. Epub 2020 Apr 4.
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.