Chen C, Zhou Y, Wang DW SARS-CoV-2: a potential novel etiology of fulminant myocarditis. Herz. 2020 May;45(3):230-232. doi: 10.1007/s00059-020-04909-z.
Hu Y, Deng H, Huang L, Xia L, Zhou X Analysis of Characteristics in Death Patients with COVID-19 Pneumonia without Underlying Diseases. Acad Radiol. 2020 May;27(5):752. doi: 10.1016/j.acra.2020.03.023. Epub 2020 Apr 7.
Lu KL, Chen S, Leung LP Initial Experience of an Emergency Department in Shenzhen in Responding to the Emerging Wuhan Coronavirus Pneumonia. Ann Emerg Med. 2020 Apr;75(4):556. doi: 10.1016/j.annemergmed.2020.02.006.
Xu Z, Li S, Tian S, Li H, Kong LQ Full spectrum of COVID-19 severity still being depicted. Lancet. 2020 Mar 21;395(10228):947-948. doi: 10.1016/S0140-6736(20)30308-1. Epub 2020 Feb 14.
Zhang J, Zhou L, Yang Y, Peng W, Wang W, Chen X Therapeutic and triage strategies for 2019 novel coronavirus disease in fever clinics. Lancet Respir Med. 2020 Mar;8(3):e11-e12. doi: 10.1016/S2213-2600(20)30071-0. Epub 2020 Feb 13.
Zheng HY, Zhang M, Yang CX, Zhang N, Wang XC, Yang XP, Dong XQ, Zheng YT Elevated exhaustion levels and reduced functional diversity of T cells in peripheral blood may predict severe progression in COVID-19 patients. Cell Mol Immunol. 2020 May;17(5):541-543. doi: 10.1038/s41423-020-0401-3. Epub 2020 Mar 17.
Various Molecular Markers With Predictive and Prognostic Significance in COVID-19 Outcome
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.
