Dynamics of Colonization and Infection by Multidrug-Resistant Pathogens in Immunocompromised and Critically Ill Patients

Description

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).

Conditions

Antimicrobial Drug Resistance, Antibiotic Resistant Infection, Clostridium Difficile, Carbapenem-Resistant Enterobacteriaceae Infection, Extended Spectrum Beta-Lactamase Producing Bacteria Infection, Vancomycin Resistant Enterococci Infection, Carbapenem Resistant Bacterial Infection, Vancomycin-Resistant Enterococcal Infection

Study Overview

Study Details

Study overview

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).

Dynamics of Colonization and Infection by Multidrug-Resistant Pathogens in Immunocompromised and Critically Ill Patients

Dynamics of Colonization and Infection by Multidrug-Resistant Pathogens in Immunocompromised and Critically Ill Patients

Condition
Antimicrobial Drug Resistance
Intervention / Treatment

-

Contacts and Locations

Houston

Houston Methodist Hospital, Houston, Texas, United States, 77030

Houston

The University of Texas MD Anderson Cancer Center, Houston, Texas, United States, 77030

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * Admission to an intensive care unit or stem cell transplant unit (for allogeneic stem cell transplantation) within previous 24 hours
  • * \<18 years of age
  • * Pregnancy
  • * History of inflammatory bowel disease (Crohn's disease, ulcerative colitis)
  • * Gastrointestinal derivation (colostomy, ileostomy, etc.)

Ages Eligible for Study

18 Years to

Sexes Eligible for Study

ALL

Accepts Healthy Volunteers

Yes

Collaborators and Investigators

The Methodist Hospital Research Institute,

Cesar A Arias, MD, PhD, Msc, PRINCIPAL_INVESTIGATOR, The Methodist Hospital Research Institute

Study Record Dates

2026-06