Effect of Antifungals on the Intestinal Microbiome - a Randomized, Controlled, Proof-of-concept Trial

Trial statusNot yet recruiting
Trial phaseEarly Phase 1
Trial typeInterventional
Biological sexMale
Age18-35
SponsorAcademisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

About this trial

The goal of this clinical trial is to learn how the antifungal drug fluconazole affects the gut microbiome and immune system in healthy volunteers.

The main questions it aims to answer are:

* Does fluconazole change the gut bacteriome and mycobiome composition after 14 days of treatment? * How long do these changes last (4 weeks and 6 months after treatment)? * Does fluconazole affect the body's immune responses, such as blood cell activity and antifungal antibodies?

Researchers will compare two groups: participants who take fluconazole for 14 days and participants who receive no intervention.

Participants will:

* Either take one fluconazole tablet (200 mg) daily for 14 days, or receive no treatment * Provide stool samples and blood samples at several timepoints * Return for follow-up visits up to 6 months after treatment

This study is conducted at Amsterdam UMC, location AMC, with a planned enrollment of 50 healthy male volunteers aged 18-35 years.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Male, 18-35 years of age at the time of signing informed consent

Healthy, as determined by medical history and physical examination; minor clinical abnormalities allowed if not introducing additional risk or interfering with study procedures

Capable of giving written informed consent and able to comply with study requirements

Normal defecation pattern (≤3 times/day and ≥3 times/week)

Disqualifiers

Major illness in the past 3 months, or significant chronic medical illness deemed unfavorable for enrollment

Past or current gastrointestinal disease that may influence the gut microbiota (including inflammatory bowel disease or medication-treated irritable bowel syndrome)

History of immunodeficiency

History of malignancy

Trial design

Design model

Parallel

Treatments tested in this trial

  • Fluconazole 200mg tab

    Drug

    Oral administration of one 200 mg fluconazole tablet once daily for 14 days.

Treatment groups

50 Participants
are divided into 2 treatment groups
Group A: FluconazoleExperimental treatment 1 intervention
Group B: No InterventionNo intervention 0 interventions

Trial outcomes

Primary outcomes

1

Effect of fluconazole on the intestinal microbiome

Difference in gut bacteriome and mycobiome composition, ⍺- and ß-diversity between adults treated with an antifungal (fluconazole) and no intervention directly after completion of antifungal treatment (t=14 days).

Time frame
14 days (end of treatment)

Secondary outcomes

1

Gut microbiome and mycobiome composition at 6 months post-treatment

Differences in gut bacteriome and mycobiome composition, including α- and β diversity, between fluconazole and no-intervention arms and compared to baseline, 6 months after completion of fluconazole treatment.

Time frame
6 months post-treatment
2

Gut microbial functional profiles after fluconazole treatment

Differences in gut microbial functional profiles, including metabolic pathways and in vitro fecal microbial fermentation, between fluconazole and no-intervention arms

Time frame
Baseline, 14 days, 4 weeks, and 6 months
3

Systemic innate immune responses after fluconazole treatment

Differences in host systemic innate immune response profiles between fluconazole and no-intervention arms at baseline, 14 days, 4 weeks, and 6 months. Responses will be assessed using ex vivo stimulation assays of peripheral blood mononuclear cells and neutrophils, and measurement of antifungal antibodies.

Time frame
Baseline, 14 days, 4 weeks, and 6 months

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

Lead sponsor

ZonMw: The Netherlands Organisation for Health Research and Development

Collaborator

This trial is not recruiting at the moment. You can still explore other options: