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NCT01289509 · ClinicalTrials.gov registry record · Phase 1

A Study to Evaluate the Relative Bioavailability and Intra-Subject Variability of Two Lots of E5501 40 mg Tablets Administered Twice as Single Oral Doses to Healthy Subjects

A Phase 1 study, sponsored by Eisai.

Completed
Registry status
Phase 1
Development phase
42
Enrollment target

NCT01289509: Completed Phase 1 study, sponsored by Eisai.

NCT01289509 is a Phase 1 study that has completed, run by Eisai. The registered enrollment target is 42 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (30% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT01289509, a Phase 1 study, has completed, sponsored by Eisai.

COMPLETED
Registry status
Phase 1
Development phase
42 participants
Enrollment target

Study Summary

The purpose of this study is to evaluate the relative bioavailability (BA) of two lots of E5501 40 mg tablets administered twice as single oral doses to healthy subjects.

Interventions

  • DRUG E5501
  • DRUG Drug: E5501

Trial Details

FieldValue
Enrollment Target 42 participants
Start Date 2010-12
Est. Completion 2011-05
Phase Phase 1
Eisai

287 total trials

What the finished NCT01289509 record still lists

NCT01289509 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 42 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (30% lower).

The record links to 0 conditions, and to 2 interventions - of which E5501 is the first listed.

NCT01289509 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01289509 about?

NCT01289509 is a clinical study titled "A Study to Evaluate the Relative Bioavailability and Intra-Subject Variability of Two Lots of E5501 40 mg Tablets Administered Twice as Single Oral Doses to Healthy Subjects". The purpose of this study is to evaluate the relative bioavailability (BA) of two lots of E5501 40 mg tablets administered twice as single oral doses to healthy subjects.

What is the current status of trial NCT01289509?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 42 participants. The study started on 2010-12. Estimated completion is 2011-05.

What interventions are being tested in trial NCT01289509?

The interventions under investigation include: E5501 (DRUG), Drug: E5501 (DRUG).

Who is sponsoring clinical trial NCT01289509?

This trial is sponsored by Eisai, which has 287 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT01289509's enrollment target sits among peer trials

42 1105th of 2000 higher than 876 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT01289509, the US trial registry maintained by the National Library of Medicine. NCT01289509 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.