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The effect of antibiotics and the gut flora on the immune system.

The role of the microbiota in the systemic immune response.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON27808
Enrollment
12
Registered
2012-09-25
Start date
2013-01-15
Completion date
Unknown
Last updated
2024-06-11

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

Conditions

sepsis, gut flora depletion, systemic immune response

Interventions

All volunteers will self-administer the following antibiotics for 7 consecutive days (concomitantly): 1. Vancomycin 250mg 3dd2
2. Ciprofloxacin 500mg 2dd1
3. Metronidazol 500mg 3dd1.

Sponsors

Academisch Medisch Centrum, Amsterdam
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1. Healthy; 2. Male between 18 and 35 years of age; 3. Capable of giving written informed consent and able to comply with the requirements and restrictions; 4. Chemistry panel without any clinically relevant abnormality; 5. Normal defecation pattern (defined as 3x/week).

Exclusion criteria

Exclusion criteria: 1. Major illness in the past 3 months or significant chronic medical illness; 2. History of any type of malignancy; 3. Past or current gastrointestinal disease which may influence the gut microbiota; 4. Known positive test for hepatitis C antibody, hepatitis B surface antigen or HIV; 5. Current or chronic history of liver disease, or known hepatic or biliary abnormalities; 6. Use of tobacco products; 7. History, within 3 years, of drug abuse; 8. History of alcoholism and/or drinking more than 3 units of alcohol per day; 9. The subject has received an investigational product within three months of day 1; 10. Use of prescription or non-prescription drugs and herbal and dietary supplements within 6 months; 11. Recent (< 12 months) use of antibiotics (any kind, except for dermal antibiotics); 12. Allergy to antibiotics (any kind); 13. Difficulty swallowing pills; 14. Any other relevant issue.

Design outcomes

Primary

MeasureTime frame
Side effects, laboratory measurements, functional assays and microbiota composition. 1. Side effects will be registered using a graded scale; 2. A HITchip (16S rRNA) analysis to determine microbiome composition; 3. Laboratory measurements: include inflammatory markers, neutrophil activation and -degranulation; 4. Functional assays: ex vivo stimulation of blood cells with nosocomial pathogens.

Contacts

Public ContactJ.M. Lankelma

CEMM, Department of Internal Medicine Academic Medical Center University of Amsterdam Meibergdreef 9

+31 (0)20 5665247

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)