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Evaluation Of The Pan-microbiome and Host Immune Response in CF

NYU Langone Health logo

NYU Langone Health

Status

Completed

Conditions

Cystic Fibrosis (CF)

Treatments

Procedure: Two-Bronchoscope Technique

Study type

Observational

Funder types

Other

Identifiers

NCT02778750
14-01692

Details and patient eligibility

About

Investigators will examine temporal and regional dynamic changes in the microbiome of Cystic Fibrosis patients to explore microbiome features that are associated with an inflammatory phenotype. Investigators hypothesize that temporal and spatial differences in lung microbiome are associated with host inflammatory responses.

While chronic and polymicrobial airway colonization are commonly recognized in cystic fibrosis (CF), it is unclear what factors of the microbial environment lead to infection with pathogenic microorganism. This is a multi center, longitudinal cohort of adult Cystic Fibrosis subjects recruit4ed from NYU and Columbia to understand how changes in the airway microbiome may affect the host inflammatory responses in Cystic Fibrosis (CF). There will be three approaches to understanding inflammatory responses; 1) a longitudinal assessment of temporal changes in the microbiome over a 6-month period of clinical stability; 2) comparison of the regional differences in airway microbiome between lung segments with more versus less disease; 3) evaluation of functional aspects of the lung microbiome.

Enrollment

12 patients

Sex

All

Ages

18 to 70 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • CF diagnosis
  • able to produce sputum
  • no recent (one month) exacerbation defined as physician treatment with antibiotics for ≥ 7days
  • FEV1 ≥ 30% of predicted.

Exclusion criteria

  • Initiation of any new chronic therapy (e.g., ibuprofen, aerosolized rhDNase, hypertonic saline, azithromycin, tobramycin inhalation solution, aztreonam inhalation solution, ivacaftor) within 8 weeks prior to enrolment
  • introduction of vitamins or proton pump inhibitors within 8 weeks prior to enrolment
  • use of new investigational therapy within 4 weeks
  • current smoker; use of oral corticosteroids
  • Initiation of treatment or change in regimen for allergic bronchopulmonary aspergillosis or nontuberculous mycobacteria within 8 weeks.
  • liver enzymes > 3 times the upper limit
  • pregnancy

Additional Exclusion Criteria for Bronchoscopy Subgroup (Aims 2 and 3):

  • FEV1 < 50% of predicted.
  • Significant cardiovascular disease defined as abnormal EKG, known or suspected coronary artery disease or congestive heart failure.
  • Significant renal disease (Creatinine Clearance < 30%).
  • Severe malnutrition (BMI <18kg/m2)

Trial design

12 participants in 2 patient groups

Stable Group
Treatment:
Procedure: Two-Bronchoscope Technique
Rapid Decliner Group
Treatment:
Procedure: Two-Bronchoscope Technique

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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