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NCT03980184 · ClinicalTrials.gov registry record · Phase 2

Guanfacine to Improve Substance Use Outcomes in Women

A Phase 2 study, sponsored by Yale University.

Completed
Registry status
Phase 2
Development phase
74
Enrollment target

NCT03980184: Completed Phase 2 study, sponsored by Yale University.

NCT03980184 is a Phase 2 study that has completed, run by Yale University. The registered enrollment target is 74 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (44% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03980184, a Phase 2 study, has completed, sponsored by Yale University.

COMPLETED
Registry status
Phase 2
Development phase
74 participants
Enrollment target

Study Summary

Hypothesis: Guanfacine (GUA) (3mg/day) will reduce drug craving, improve cognitive flexibility and result in associated lower drug use in women with substance use disorder (SUD) in an outpatient clinical setting.

Primary Outcome

Days of any drug use during the 10 week period (assessed daily and weekly via self report). Data presented here is the average between week 10 and week 1.

Interventions

  • DRUG Guanfacine
  • OTHER Behavioral Counseling

Trial Details

FieldValue
Enrollment Target 74 participants
Start Date 2019-11-01
Est. Completion 2022-11-30
Phase Phase 2
Yale University

1,492 total trials

What the finished NCT03980184 record still lists

NCT03980184 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 74 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (44% lower).

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

NCT03980184 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03980184 about?

NCT03980184 is a clinical study titled "Guanfacine to Improve Substance Use Outcomes in Women". Hypothesis: Guanfacine (GUA) (3mg/day) will reduce drug craving, improve cognitive flexibility and result in associated lower drug use in women with substance use disorder (SUD) in an outpatient clinical setting.

What is the current status of trial NCT03980184?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 74 participants. The study started on 2019-11-01. Estimated completion is 2022-11-30.

What interventions are being tested in trial NCT03980184?

The interventions under investigation include: Guanfacine (DRUG), Behavioral Counseling (OTHER).

Who is sponsoring clinical trial NCT03980184?

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 NCT03980184's enrollment target sits among peer trials

74 920th of 2000 higher than 1,077 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 NCT03980184, the US trial registry maintained by the National Library of Medicine. NCT03980184 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.