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NCT02174250 · ClinicalTrials.gov registry record · Phase 1

The Effect of Rifampin on the Metabolism of Istradefylline in Healthy Volunteers.

A Phase 1 study, sponsored by Kyowa Kirin Co..

Completed
Registry status
Phase 1
Development phase
20
Enrollment target

NCT02174250: Completed Phase 1 study, sponsored by Kyowa Kirin Co..

NCT02174250 is a Phase 1 study that has completed, run by Kyowa Kirin Co.. The registered enrollment target is 20 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (67% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT02174250, a Phase 1 study, has completed, sponsored by Kyowa Kirin Co..

COMPLETED
Registry status
Phase 1
Development phase
20 participants
Enrollment target

Study Summary

The purpose of this study is to test whether Rifampin affects blood levels of istradefylline in humans. Rifampin could possibly decrease istradefylline levels.

Interventions

  • DRUG Istradefylline 40 mg
  • DRUG Rifampin 300mg BID + istradefylline 40mg Day 8 only

Trial Details

FieldValue
Enrollment Target 20 participants
Start Date 2014-06
Est. Completion 2014-12
Phase Phase 1
Kyowa Kirin Co.

25 total trials

What the finished NCT02174250 record still lists

NCT02174250 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 20 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (67% lower).

The record links to 0 conditions, and to 2 interventions - of which Istradefylline 40 mg is the first listed.

NCT02174250 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT02174250 about?

NCT02174250 is a clinical study titled "The Effect of Rifampin on the Metabolism of Istradefylline in Healthy Volunteers.". The purpose of this study is to test whether Rifampin affects blood levels of istradefylline in humans. Rifampin could possibly decrease istradefylline levels.

What is the current status of trial NCT02174250?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 20 participants. The study started on 2014-06. Estimated completion is 2014-12.

What interventions are being tested in trial NCT02174250?

The interventions under investigation include: Istradefylline 40 mg (DRUG), Rifampin 300mg BID + istradefylline 40mg Day 8 only (DRUG).

Who is sponsoring clinical trial NCT02174250?

This trial is sponsored by Kyowa Kirin Co., which has 25 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT02174250's enrollment target sits among peer trials

20 1629th of 2000 higher than 285 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 NCT02174250, the US trial registry maintained by the National Library of Medicine. NCT02174250 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.