Fowler AA, Fisher BJ, Centor RM, Carchman RA Development of the adult respiratory distress syndrome: progressive alteration of neutrophil chemotactic and secretory processes. Am J Pathol. 1984 Sep;116(3):427-35.
Munford RS, Pugin J Normal responses to injury prevent systemic inflammation and can be immunosuppressive. Am J Respir Crit Care Med. 2001 Feb;163(2):316-21. Review.
Presneill JJ, Harris T, Stewart AG, Cade JF, Wilson JW A randomized phase II trial of granulocyte-macrophage colony-stimulating factor therapy in severe sepsis with respiratory dysfunction. Am J Respir Crit Care Med. 2002 Jul 15;166(2):138-43.
Prompetchara E, Ketloy C, Palaga T Immune responses in COVID-19 and potential vaccines: Lessons learned from SARS and MERS epidemic. Asian Pac J Allergy Immunol. 2020 Mar;38(1):1-9. doi: 10.12932/AP-200220-0772. Review.
Rösler B, Herold S Lung epithelial GM-CSF improves host defense function and epithelial repair in influenza virus pneumonia-a new therapeutic strategy? Mol Cell Pediatr. 2016 Dec;3(1):29. doi: 10.1186/s40348-016-0055-5. Epub 2016 Aug 1. Review.
Ruan Q, Yang K, Wang W, Jiang L, Song J Correction to: Clinical predictors of mortality due to COVID-19 based on an analysis of data of 150 patients from Wuhan, China. Intensive Care Med. 2020 Jun;46(6):1294-1297. doi: 10.1007/s00134-020-06028-z.
Schneider C, Nobs SP, Heer AK, Hirsch E, Penninger J, Siggs OM, Kopf M Frontline Science: Coincidental null mutation of Csf2ra in a colony of PI3K?-/- mice causes alveolar macrophage deficiency and fatal respiratory viral infection. J Leukoc Biol. 2017 Feb;101(2):367-376. doi: 10.1189/jlb.4HI0316-157R. Epub 2016 Jul 28.
Umstead TM, Hewage EK, Mathewson M, Beaudoin S, Chroneos ZC, Wang M, Halstead ES Lower respiratory tract delivery, airway clearance, and preclinical efficacy of inhaled GM-CSF in a postinfluenza pneumococcal pneumonia model. Am J Physiol Lung Cell Mol Physiol. 2020 Apr 1;318(4):L571-L579. doi: 10.1152/ajplung.00296.2019. Epub 2020 Jan 29.
Wu Z, McGoogan JM Characteristics of and Important Lessons From the Coronavirus Disease 2019 (COVID-19) Outbreak in China: Summary of a Report of 72 314 Cases From the Chinese Center for Disease Control and Prevention. JAMA. 2020 Apr 7;323(13):1239-1242. doi: 10.1001/jama.2020.2648.
Zhan Y, Lew AM, Chopin M The Pleiotropic Effects of the GM-CSF Rheostat on Myeloid Cell Differentiation and Function: More Than a Numbers Game. Front Immunol. 2019 Nov 15;10:2679. doi: 10.3389/fimmu.2019.02679. eCollection 2019. Review.
Using GM-CSF as a Host Directed Therapeutic Against COVID-19 - a Phase 2 Investigator Initiated Trial
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.