Skip to content

Choosing the Best Antibiotic to Protect Friendly Gut Bacteria During the Course of Stem Cell Transplant

Rational Use of Broad-spectrum Antibiotics as Empiric Antibiotic Therapy in Febrile Neutropenia in Recipients of Allogeneic Hematopoietic Cell Transplantation

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03078010
Enrollment
347
Registered
2017-03-13
Start date
2017-02-10
Completion date
2027-02-01
Last updated
2026-03-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intestinal Microbiome, Febrile Neutropenia

Keywords

Antibiotic, piperacillin-tazobactam, cefepime, aztreonam, 17-097

Brief summary

The purpose of this study is to see how different antibiotics affect the community of friendly bacteria existing in the intestinal tract (gut). Under normal circumstances, these friendly bacteria are not harmful and they help with normal bodily functions such as digestion. When these bacteria are absent, several complications may occur, such as infections with harmful bacteria or other inflammatory reactions, that can complicate the stem cell transplant course. Treatment with antibiotics or chemotherapy is known to kill off these friendly bacteria. In this study we compare the effects of different antibiotics on the community of friendly bacteria in the gut. For microbiota-related biomarker analysis, optional urine samples (MSKCC patients only) will be collected at baseline, 7 +/-2 days after initiation of antibiotic therapy, and on post-transplant days +28, +56 and +100 (+/- 7days).

Interventions

piperacillin-tazobactam (4.5 gm IV q 6 hrs)

DRUGcefepime

(2 gm IV q 8 hrs)

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

This is a randomized open-label phase II study to assess the association between antibiotic treatment strategies and the change in the relative abundance of Clostridiales.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥ 18 years * Patients with any hematologic malignancy undergoing

Exclusion criteria

* Patients with severe allergies to piperacillin-tazobactam, cefepime, aztreonam or vancomycin. Severe reactions include anaphylaxis and Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN). * Patients with unconfirmed allergies to piperacillin-tazobactam, cefepime, aztreonam or vancomycin can be evaluated by an Allergy/Immunology specialist, after which they may become eligible by a consensus of the treating physician, trial investigator and and the Allery * Prolonged antibiotic treatment ( ≥10 days, within 3 weeks of enrollment) as prevention or suppression of an ongoing infection, where treatment involves gut-perturbing anti anaerobic antibiotics * Patients with history of infection with extended-spectrum beta-lactamase producing organism. Patients known to be colonized with multi-drug resistant gram-negative organisms or with history of infection with multi-drug resistant organisms will be evaluated case by case and discussed with infectious disease specialist before enrollment * Febrile patients * Patients with estimated glomerular filtration rate (eGFR) \< 30 mL/min/1.73m\^2

Design outcomes

Primary

MeasureTime frameDescription
measurement of fold-change in Clostridiales abundance7 +/- 2 days after initiation of piperacillin-tazobactam or cefepimeFold change will be assessed 7 +/- 2 days after initiating antibiotic treatment for febrile neutropenia and will be compared to the pre-treatment specimen. Pre-treatment stool specimen will be collected between the time of enrollment Patients will be enrolled and infusion of allografts or first episode of neutropenic fever, whichever occurs first.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORSusan Seo, MD

Memorial Sloan Kettering Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 5, 2026