Arnaud FCS, Liborio AB Attributable nephrotoxicity of vancomycin in critically ill patients: a marginal structural model study. J Antimicrob Chemother. 2020 Apr 1;75(4):1031-1037. doi: 10.1093/jac/dkz520.
Bellos I, Karageorgiou V, Pergialiotis V, Perrea DN Acute kidney injury following the concurrent administration of antipseudomonal beta-lactams and vancomycin: a network meta-analysis. Clin Microbiol Infect. 2020 Jun;26(6):696-705. doi: 10.1016/j.cmi.2020.03.019. Epub 2020 Mar 25.
Carreno J, Smiraglia T, Hunter C, Tobin E, Lomaestro B Comparative incidence and excess risk of acute kidney injury in hospitalised patients receiving vancomycin and piperacillin/tazobactam in combination or as monotherapy. Int J Antimicrob Agents. 2018 Nov;52(5):643-650. doi: 10.1016/j.ijantimicag.2018.08.001. Epub 2018 Aug 10.
Cecconi M, Evans L, Levy M, Rhodes A Sepsis and septic shock. Lancet. 2018 Jul 7;392(10141):75-87. doi: 10.1016/S0140-6736(18)30696-2. Epub 2018 Jun 21.
Hammond DA, Smith MN, Li C, Hayes SM, Lusardi K, Bookstaver PB Systematic Review and Meta-Analysis of Acute Kidney Injury Associated with Concomitant Vancomycin and Piperacillin/tazobactam. Clin Infect Dis. 2017 Mar 1;64(5):666-674. doi: 10.1093/cid/ciw811. Epub 2016 Dec 10.
Hammond DA, Smith MN, Painter JT, Meena NK, Lusardi K Comparative Incidence of Acute Kidney Injury in Critically Ill Patients Receiving Vancomycin with Concomitant Piperacillin-Tazobactam or Cefepime: A Retrospective Cohort Study. Pharmacotherapy. 2016 May;36(5):463-71. doi: 10.1002/phar.1738. Epub 2016 Apr 1.
Kalligeros M, Karageorgos SA, Shehadeh F, Zacharioudakis IM, Mylonakis E The association of acute kidney injury with the concomitant use of vancomycin and piperacillin/tazobactam in children: A systematic review and meta-analysis. Antimicrob Agents Chemother. 2019 Sep 9;63(12):e01572-19. doi: 10.1128/AAC.01572-19. Epub 2019 Oct 7.
Kang S, Park J, Yu YM, Park MS, Han E, Chang MJ Comparison of acute kidney injury and clinical prognosis of vancomycin monotherapy and combination therapy with beta-lactams in the intensive care unit. PLoS One. 2019 Jun 5;14(6):e0217908. doi: 10.1371/journal.pone.0217908. eCollection 2019.
Molina KC, Barletta JF, Hall ST, Yazdani C, Huang V The Risk of Acute Kidney Injury in Critically Ill Patients Receiving Concomitant Vancomycin With Piperacillin-Tazobactam or Cefepime. J Intensive Care Med. 2020 Dec;35(12):1434-1438. doi: 10.1177/0885066619828290. Epub 2019 Feb 10.
O'Callaghan K, Hay K, Lavana J, McNamara JF Acute kidney injury with combination vancomycin and piperacillin-tazobactam therapy in the ICU: A retrospective cohort study. Int J Antimicrob Agents. 2020 Jul;56(1):106010. doi: 10.1016/j.ijantimicag.2020.106010. Epub 2020 May 12.
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.