Enanta Pharmaceuticals

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, Enanta Pharmaceuticals sits in the top decile of US sponsors by registered trial count (#467 of 15,742 sponsors by registered trial count).

36 total trials 1 currently recruiting 32 completed early-phase tilt top decile by trial count

Enanta Pharmaceuticals: 36 sponsored US clinical trials, 1 recruiting.

Enanta Pharmaceuticals sponsors 36 registered US clinical trials on ClinicalTrials.gov, 1 of them currently recruiting, and 32 completed. 0 of these trials are in Phase 3-4 (later-stage) and 36 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is RSV Infection, with 3 trials.

Top-decile sponsor footprint

Enanta Pharmaceuticals ranks in the top decile of sponsors by registered trial count (#467 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

C 68/100

32 of 35 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (91.4%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Open and recent trials

36 total, page 1 of 1

RECRUITING Phase 1

A Study to Investigate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Single and Multiple Doses of EDP-978 in Healthy Adults

NCT07540910

COMPLETED Phase 1

A Study to Evaluate the Drug-Drug Interaction of EDP-323 With Midazolam, Caffeine, and Rosuvastatin in Healthy Participants

NCT06917508

COMPLETED Phase 1

A Drug-Drug Interaction Study to Evaluate the Effects of Itraconazole, Carbamazepine, Quinidine and Fluconazole on the Pharmacokinetics and Safety of EDP-323.

NCT06847464

COMPLETED Phase 1

A Study to Investigate the Effects of Zelicapavir (EDP-938) on QTc Interval in Healthy Adults

NCT06601192

COMPLETED Phase 2

A Study of EDP-938 in Non-hospitalized Adults With RSV Who Are at High Risk for Complications.

NCT05568706

COMPLETED Phase 2

A Study to Evaluate EDP-235 in Non-hospitalized Adults With COVID-19

NCT05616728

COMPLETED Phase 1

Drug-Drug Interaction Study Between EDP-235, Itraconazole, Carbamazepine and Quinidine in Healthy Subjects.

NCT05594602

COMPLETED Phase 1

Drug-Drug Interaction Study Between EDP-235, Midazolam, Caffeine and Rosuvastatin in Healthy Subjects

NCT05594615

COMPLETED Phase 1

A Study of EDP-323 in Healthy Subjects

NCT05587478

COMPLETED Phase 2

A Study to Evaluate EDP 938 Regimens in Children With RSV

NCT04816721

COMPLETED Phase 1

A Study of EDP-235 in Healthy Subjects

NCT05246878

TERMINATED Phase 2

Effects of EDP-938 in Hematopoietic Cell Transplant Recipients Infected With Respiratory Syncytial Virus of the Upper Respiratory Tract

NCT04633187

COMPLETED Phase 1

Absorption, Metabolism, and Excretion (AME) Study of [14C]EDP-938 in Healthy Male Subjects

NCT04927793

COMPLETED Phase 1

Drug-Drug Interaction Study Between Fluconazole and EDP-938 in Healthy Subjects

NCT04871724

COMPLETED Phase 1

Drug-Drug Interaction Study Between EDP-514, Itraconazole, Carbamazepine, and Quinidine in Healthy Subjects

NCT04783753

COMPLETED Phase 1

Drug-Drug Interaction Study Between EDP-938, Tacrolimus, Dabigatran, Rosuvastatin and Midazolam in Healthy Subjects

NCT04498741

TERMINATED Phase 2

A Randomized, Double-blind Study to Assess the Safety and Efficacy of EDP-305 in Subjects With Liver-biopsy Proven NASH

NCT04378010

COMPLETED Phase 2

A Study to Assess EDP-938 for the Treatment of Acute Upper Respiratory Tract Infection With Respiratory Syncytial Virus in Adult Subjects

NCT04196101

COMPLETED Phase 1

A Study of EDP-514 in Healthy Subjects (Part 1) and Patients With Chronic Hepatitis B Virus Infection (Part 2)

NCT04008004

COMPLETED Phase 1

Drug-Drug Interaction Study Between EDP-938, Itraconazole, Rifampin, and Quinidine in Healthy Subjects

NCT03755778

COMPLETED Phase 1

A Drug-drug Interaction Study to Investigate the Effect of Coadministration of EDP-305 on the PK of a Combined Oral Contraceptive in Healthy Female Subjects

NCT03783897

COMPLETED Phase 1

Drug-Drug Interaction Study Between EDP-938, Cyclosporine and Prednisone in Healthy Adult Subjects

NCT03750383

COMPLETED Phase 1

Absorption, Metabolism and Excretion (AME) Study of [14C]EDP-305 in Healthy Male Subjects

NCT03748628

COMPLETED Phase 1

Drug-drug Interaction Study Between EDP-305, Fluconazole and Quinidine in Healthy Volunteers

NCT03610945

COMPLETED Phase 2

A Study to Assess the Safety, Tolerability, Pharmacokinetics and Efficacy of EDP-305 in Subjects With Non-Alcoholic Steatohepatitis

NCT03421431

COMPLETED Phase 2

A Study to Assess the Safety, Tolerability, Pharmacokinetics and Efficacy of EDP-305 in Subjects With Primary Biliary Cholangitis

NCT03394924

COMPLETED Phase 1

A Study of EDP-938 in Healthy Subjects

NCT03384823

COMPLETED Phase 1

Drug-drug Interaction Study Between EDP-305, Intraconazole and Rifampin in Healthy Volunteers

NCT03213145

COMPLETED Phase 1

A Study of EDP-305 in Subjects With Mild and Moderate Hepatic Impairment Compared With Normal Healthy Volunteers

NCT03207425

COMPLETED Phase 1

Drug-drug Interaction Study Between EDP-305, Midazolam, Caffeine and Rosuvastatin in Healthy Volunteers.

NCT03187496

COMPLETED Phase 1

A Study of EDP 305 in Healthy Subjects and Subjects With Presumptive NAFLD

NCT02918929

TERMINATED Phase 1

Evaluation of the Safety, Tolerability, and Pharmacokinetics of Multiple Oral Doses of EDP-788

NCT02255968

COMPLETED Phase 1

Evaluation of the Safety and Pharmacokinetics of a Single Oral Dose of EDP-788

NCT01999725

COMPLETED Phase 1

Proof of Concept Study for Safety and Efficacy of EDP239 in Hepatitis C Subjects

NCT01856426

COMPLETED Phase 1

Multiple Ascending-Dose Study of EDP 322 in Healthy Adult Volunteers

NCT00990145

COMPLETED Phase 1

Safety and Pharmacokinetics of Ascending Single Oral Doses of EDP-322 in Nonfasting and Fasting Healthy Volunteers

NCT00989872

What is open in the Enanta Pharmaceuticals pipeline

1 recruiting of 36 indexed (3% open); 32 completed (89%).

Phase mix: 0 late (III/IV) vs 36 early (I/II) (early-phase heavy).

Top condition: RSV Infection (3 trials), 8 others listed.

How open-pipeline share is computed

Recruiting share is recruiting_count divided by trial_count for this sponsor in the public registry export. Status can change between pulls; treat the figure as a research-attention snapshot, not product availability.

Enanta Pharmaceuticals: open-pipeline peers nationwide

Peers matched on 36 registered trials and 3% open enrollment, not the therapeutic-area sidebar.

Enanta Pharmaceuticals sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 050100150 0%5%10%15%20% Total trials Recruiting share Enanta PharmaceuticalsAcorda TherapeuticsBaystate Medical CenterEastern Virginia Medical SchoolMacroGenicsEastern Cooperative Oncology GroupAppalachian State UniversityBracco DiagnosticsJanssen Scientific Affairs
Enanta Pharmaceuticals sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

Enanta Pharmaceuticals sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 36 trials (± recruiting share)

Sponsors near 3% open enrollment (± trial volume)

What to do with this Enanta Pharmaceuticals page

36 registered trials is a research-attention snapshot, not an endorsement of Enanta Pharmaceuticals or any single study.

  • 1 of Enanta Pharmaceuticals's trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • RSV Infection is the condition Enanta Pharmaceuticals studies most, compare against other sponsors active in the same condition before evaluating a specific study. See RSV Infection trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Enanta Pharmaceuticals pipeline card: 36 registered trials from official public datasets.Report a data error.