Evaluating how EDP-323 interacts with other drugs in healthy adults

A Non-Randomized, Multiple-Dose, Open-Label, Single Sequence Study to Evaluate the Effect of Concomitant Administration of EDP-323 on the Pharmacokinetics and Safety of Midazolam, Caffeine, and Rosuvastatin in Healthy Participants

Phase 1 Interventional Enanta Pharmaceuticals, Inc · NCT06917508

This study tests how the drug EDP-323 affects the way healthy adults process other medications like midazolam, caffeine, and rosuvastatin to see if there are any interactions.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment24 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorEnanta Pharmaceuticals, Inc Industry-sponsored
Locations1 site (San Antonio, Texas)
Trial IDNCT06917508 on ClinicalTrials.gov

What this trial studies

This study aims to assess the effects of the drug EDP-323 on the pharmacokinetics and safety of midazolam, caffeine, and rosuvastatin in healthy adult participants. It involves administering EDP-323 alongside these medications to observe any potential drug-drug interactions. The study is designed for healthy individuals aged 18 to 65, ensuring a controlled environment to gather accurate data on how EDP-323 influences the metabolism of these drugs. The findings could provide insights into safe medication practices for future treatments.

Who should consider this trial

Good fit: Ideal candidates for this study are healthy male and female adults aged 18 to 65 with a body weight over 50 kg and a BMI between 18 and 32.

Not a fit: Patients with a history of significant illness, pregnant or nursing females, or those with conditions affecting drug absorption may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the understanding of drug interactions, leading to safer medication regimens for patients.

How similar studies have performed: While drug-drug interaction studies are common, the specific combination of EDP-323 with these medications is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* An informed consent document signed and dated by the subject
* Healthy male and female subjects of any ethnic origin between the ages of 18 and 65 years, inclusive
* Screening body weight \>50 kg and body mass index (BMI) of 18 to 32 kg/m2
* Female subjects of childbearing potential must agree to use two effective methods of contraception from the date of Screening until 30 days after the last dose of EDP-323. A male participant who has not had a vasectomy and is sexually active with a woman of childbearing potential must agree to use effective contraception from the date of Screening to 90 days after his last dose of study drug.

Exclusion Criteria:

* Clinically relevant evidence or history of illness or disease
* Pregnant or nursing females
* History of febrile illness within 7 days prior to the first dose of study drug or subjects with evidence of active infection
* Any condition possibly affecting drug absorption (e.g., gastrectomy, cholecystectomy)
* Positive for HIV or hepatitis
* Positive urine drug screen
* Current tobacco smokers or use of tobacco within 3 months prior to Screening.
* Received any vaccine, an investigational agent, or biological product within 28 days or 5 times the t½ of receipt of study drug, whichever is longer.
* Drug sensitivity to midazolam, caffeine, rosuvastatin

Where this trial is running

San Antonio, Texas

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions RSV InfectionDrug Drug Interaction
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.