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Recruiting Phase 4 NCT06433310

NCT06433310 Understanding the Efficacy of Dietary Supplement on Fungal Mycobiota in Healthy Volunteers: A Pilot Study

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Clinical Trial Summary
NCT ID NCT06433310
Status Recruiting
Phase Phase 4
Sponsor Weill Medical College of Cornell University
Condition Gut Microbiome
Study Type INTERVENTIONAL
Enrollment 20 participants
Start Date 2024-10-17
Primary Completion 2027-12-17

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
L-Phenylalanine 500 mg Veg Capsule product

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 4 studies follow an already-approved treatment in real-world conditions to monitor long-term safety and effectiveness.

This trial targets 20 participants in total. It began in 2024-10-17 with a primary completion date of 2027-12-17.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The purpose of this study is to explore how the dietary supplement L-Phenylalanine affects the production of the metabolite phenylpropionic acid (PPA) and changes fungal populations of the gut microbiome.

Eligibility Criteria

Inclusion Criteria: * Male or female adults over the age of 18 years Exclusion Criteria: * History of a diagnosis of any gastrointestinal condition, such as inflammatory bowel syndrome or disease * Antibiotic usage within the past two weeks * Antifungal usage within the past month * Allergy to L-Phenylalanine or individuals with phenylketonuria (PKU) * Adults taking medications known to interact with L-phenylalanine supplements, such as Monoamine Oxidase Inhibitors (MOAI), L-DOPA, and some antipsychotic drugs (complete and extensive drug list will be provided to interested participants during screening) * Pregnant or nursing women

Contact & Investigator

Central Contact

Emilia T Vignogna, BS

✉ etv4001@med.cornell.edu

📞 505-259-4995

Principal Investigator

Iliyan D Iliev, PhD

PRINCIPAL INVESTIGATOR

Weill Medical College of Cornell University

Frequently Asked Questions

Who can join the NCT06433310 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, studying Gut Microbiome. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT06433310 trial and what does that mean for participants?

Phase 4 studies are conducted after a treatment has been approved. They monitor long-term safety and real-world effectiveness in a broader patient population.

Is NCT06433310 currently recruiting?

Yes, NCT06433310 is actively recruiting participants. Contact the research team at etv4001@med.cornell.edu for enrollment information.

Where is the NCT06433310 trial being conducted?

This trial is being conducted at New York, United States.

Who is sponsoring the NCT06433310 clinical trial?

NCT06433310 is sponsored by Weill Medical College of Cornell University. The principal investigator is Iliyan D Iliev, PhD at Weill Medical College of Cornell University. The trial plans to enroll 20 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: September 2026  ·  Data Methodology