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| ID | Type | Description | Link |
|---|---|---|---|
| 1P01AI152999-01 | U.S. NIH Grant/Contract | View source |
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| Name | Class |
|---|---|
| National Institute of Allergy and Infectious Diseases (NIAID) | NIH |
| M.D. Anderson Cancer Center | OTHER |
| Baylor College of Medicine | OTHER |
| University of Houston |
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The goal of this observational study is to investigate how bacterial populations from the intestine and mouth of patients change during the hospitalization period and evaluate if some populations of specific bacteria increase or decrease the risk of acquiring an infection or becoming colonized by pathogenic bacteria. Participants will have the following samples collected during enrollment: stool samples (maximum 2x/week), blood draws (1x/week), oral swab (1x/week).
The objectives of this study are to dissect the main microbial, clinical, and antimicrobial resistance determinants that impact colonization and infection by vancomycin-resistant enterococci (VRE), extended-spectrum beta-lactamase producing Enterobacterales (ESBL-E), carbapenem-resistant Enterobacterales (CRE), and Clostridium difficile; to evaluate the role of commensal microbiota in VRE, ESBL-E/CRE, and C. difficile colonization, and to define the functional aspects of keystone microbiota and mechanisms of protection against colonization/infection.
Patients will be recruited from both intensive care units (n=500) and stem cell transplant units (n=500) and will be followed until discharge from these units, or for a maximum of four weeks. In addition to stool, blood, and oral samples, enrolled patients will have clinical data collected by chart review to evaluate colonization/infection-related clinical status, microbiological laboratory information, exposure to antibiotics, and clinical outcomes. Positive clinical cultures taken during the course of hospitalization will also be collected for analysis.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Intensive Care Unit | Patients admitted to an intensive care unit (No interventions administered) | ||
| Bone Marrow Transplant Unit | Patients admitted to a cancer treatment center for allogeneic stem cell transplantation (No interventions administered) |
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| Measure | Description | Time Frame |
|---|---|---|
| Impact of Colonization on Clinical Outcomes Using DOOR Analysis | A desirability of outcome ranking (DOOR) algorithm will be used to analyze the impact of colonization by any target organism (CRE/ESBL-E, VRE, or C. difficile) on 30 day clinical outcomes. DOOR outcomes will be ranked as follows: 1) alive without infection, 2) alive with infection, or 3) dead. | 30 days |
| Measure | Description | Time Frame |
|---|---|---|
| Additional Clinical Predictors of Negative Outcomes | Separate univariable logistic regression models will be used to evaluate associations between each individual component of the DOOR outcome (i.e., mortality and clinical infection) and the type of colonization as well as other independent predictors of mortality (e.g., neutropenia, hemodialysis, Pitt score, among others). Variables with p < 0.10 in bivariate analysis will also be included in the logistic models to assess for independent associations with outcome. |
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Inclusion Criteria:
Exclusion Criteria:
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Patients are recruited from the intensive care units and stem cell transplant units from two major metropolitan hospitals
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Cesar A Arias, MD, PhD, Msc | Contact | 346-238-4870 | CAArias@Houstonmethodist.org |
| Name | Affiliation | Role |
|---|---|---|
| Cesar A Arias, MD, PhD, Msc | The Methodist Hospital Research Institute | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Houston Methodist Hospital | Recruiting | Houston | Texas | 77030 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 26113652 | Background | Evans SR, Rubin D, Follmann D, Pennello G, Huskins WC, Powers JH, Schoenfeld D, Chuang-Stein C, Cosgrove SE, Fowler VG Jr, Lautenbach E, Chambers HF. Desirability of Outcome Ranking (DOOR) and Response Adjusted for Duration of Antibiotic Risk (RADAR). Clin Infect Dis. 2015 Sep 1;61(5):800-6. doi: 10.1093/cid/civ495. Epub 2015 Jun 25. | |
| 29020404 | Background | van Duin D, Lok JJ, Earley M, Cober E, Richter SS, Perez F, Salata RA, Kalayjian RC, Watkins RR, Doi Y, Kaye KS, Fowler VG Jr, Paterson DL, Bonomo RA, Evans S; Antibacterial Resistance Leadership Group. Colistin Versus Ceftazidime-Avibactam in the Treatment of Infections Due to Carbapenem-Resistant Enterobacteriaceae. Clin Infect Dis. 2018 Jan 6;66(2):163-171. doi: 10.1093/cid/cix783. |
| Label | URL |
|---|---|
| Centers for Disease Control and Prevention Antimicrobial Resistance Threats Report | View source |
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Data generated by the DYNAMITE projects and Functional Genomics Core will be made available to the public through presentations at scientific meetings, peer-reviewed journal publications and articles, and/or direct sharing or deposit of data into publicly accessible databases. All banked bacterial specimens (both infecting and colonizing isolates) will be made available. Single bacterial whole genome sequencing data will be submitted to the Short Read Archive (SRA) at NCBI for unassembled data, as well as GenBank for assembled data.16S and shotgun metagenomic data will be submitted to the SRA following host sequence removal, and assembled 16S amplicons will be submitted to GenBank. Proteomic raw MS data will be submitted to the Proteomics Identifications (PRIDE) Archive. Metabolomics raw MS data will be submitted to the National Metabolomics Data Repository (NMDR). All custom bioinformatics pipelines, tools, and analytical scripts will be made available in a GitHub repository.
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Proteomic and metabolomic data will be uploaded to their respective platforms prior to any manuscript submission to peer-reviewed journals and keys to the data will be provided to reviewers. Publication of the data in these repositories, as well as genomic sequencing data and bacterial specimens, will be made publicly available upon publication of results.
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| OTHER |
| William Marsh Rice University | OTHER |
| The University of Texas Health Science Center, Houston | OTHER |
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| 30 days |
| The University of Texas MD Anderson Cancer Center | Recruiting | Houston | Texas | 77030 | United States |
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| 22718773 | Background | Taur Y, Xavier JB, Lipuma L, Ubeda C, Goldberg J, Gobourne A, Lee YJ, Dubin KA, Socci ND, Viale A, Perales MA, Jenq RR, van den Brink MR, Pamer EG. Intestinal domination and the risk of bacteremia in patients undergoing allogeneic hematopoietic stem cell transplantation. Clin Infect Dis. 2012 Oct;55(7):905-14. doi: 10.1093/cid/cis580. Epub 2012 Jun 20. |
| 29701766 | Background | Satlin MJ, Chavda KD, Baker TM, Chen L, Shashkina E, Soave R, Small CB, Jacobs SE, Shore TB, van Besien K, Westblade LF, Schuetz AN, Fowler VG Jr, Jenkins SG, Walsh TJ, Kreiswirth BN. Colonization With Levofloxacin-resistant Extended-spectrum beta-Lactamase-producing Enterobacteriaceae and Risk of Bacteremia in Hematopoietic Stem Cell Transplant Recipients. Clin Infect Dis. 2018 Nov 13;67(11):1720-1728. doi: 10.1093/cid/ciy363. |
| 26334306 | Background | Caballero S, Carter R, Ke X, Susac B, Leiner IM, Kim GJ, Miller L, Ling L, Manova K, Pamer EG. Distinct but Spatially Overlapping Intestinal Niches for Vancomycin-Resistant Enterococcus faecium and Carbapenem-Resistant Klebsiella pneumoniae. PLoS Pathog. 2015 Sep 3;11(9):e1005132. doi: 10.1371/journal.ppat.1005132. eCollection 2015 Sep. |
| 30577266 | Background | Lee KH, Han SH, Yong D, Paik HC, Lee JG, Kim MS, Joo DJ, Choi JS, Kim SI, Kim YS, Park MS, Kim SY, Yoon YN, Kang S, Jeong SJ, Choi JY, Song YG, Kim JM. Acquisition of Carbapenemase-Producing Enterobacteriaceae in Solid Organ Transplantation Recipients. Transplant Proc. 2018 Dec;50(10):3748-3755. doi: 10.1016/j.transproceed.2018.01.058. |
| 28669864 | Background | Ulrich RJ, Santhosh K, Mogle JA, Young VB, Rao K. Is Clostridium difficile infection a risk factor for subsequent bloodstream infection? Anaerobe. 2017 Dec;48:27-33. doi: 10.1016/j.anaerobe.2017.06.020. Epub 2017 Jun 29. |
| World Health Organization Antimicrobial Resistance Fact Sheet | View source |