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NCT01904526 · ClinicalTrials.gov registry record · Phase 2

PK/PD Comparison of Guanfacine ER and IR

A Phase 2 study, sponsored by Yale University.

Completed
Registry status
Phase 2
Development phase
5
Enrollment target

NCT01904526: Completed Phase 2 study, sponsored by Yale University.

NCT01904526 is a Phase 2 study that has completed, run by Yale University. The registered enrollment target is 5 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (96% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT01904526, a Phase 2 study, has completed, sponsored by Yale University.

COMPLETED
Registry status
Phase 2
Development phase
5 participants
Enrollment target

Study Summary

Evaluate whether a 4mg/day or 6/mg day dose of extended-release guanfacine produces pharmacokinetic/dynamic (PK/PD) properties similar to 3mg/day immediate release guanfacine.

Primary Outcome

Evaluate whether a 4mg/day or 6mg/day dose of extended-release guanfacine produces pharmacokinetic (PK) properties similar to 3mg/day immediate release guanfacine by measuring plasma trough levels of guanfacine for each dose

Interventions

  • DRUG Guanfacine

Trial Details

FieldValue
Enrollment Target 5 participants
Start Date 2013-07
Est. Completion 2016-12
Phase Phase 2
Yale University

1,492 total trials

What the finished NCT01904526 record still lists

NCT01904526 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 5 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (96% lower).

The record links to 0 conditions, and to 1 intervention - of which Guanfacine is the first listed.

NCT01904526 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01904526 about?

NCT01904526 is a clinical study titled "PK/PD Comparison of Guanfacine ER and IR". Evaluate whether a 4mg/day or 6/mg day dose of extended-release guanfacine produces pharmacokinetic/dynamic (PK/PD) properties similar to 3mg/day immediate release guanfacine.

What is the current status of trial NCT01904526?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 5 participants. The study started on 2013-07. Estimated completion is 2016-12.

What interventions are being tested in trial NCT01904526?

The interventions under investigation include: Guanfacine (DRUG).

Who is sponsoring clinical trial NCT01904526?

This trial is sponsored by Yale University, which has 1,492 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT01904526's enrollment target sits among peer trials

5 2000th of 2000 the lowest of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 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 NCT01904526, the US trial registry maintained by the National Library of Medicine. NCT01904526 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.