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NCT03585231 · ClinicalTrials.gov registry record · NA

Pilot Trial of the First Conversational Agent for Smoking Cessation (QuitBot)

A NA study, sponsored by Fred Hutchinson Cancer Center.

Completed
Registry status
NA
Development phase
404
Enrollment target

NCT03585231: Completed NA study, sponsored by Fred Hutchinson Cancer Center.

NCT03585231 is a NA study that has completed, run by Fred Hutchinson Cancer Center. The registered enrollment target is 404 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (71% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03585231, a NA study, has completed, sponsored by Fred Hutchinson Cancer Center.

COMPLETED
Registry status
NA
Development phase
404 participants
Enrollment target

Study Summary

Conversational agents (CAs) are computer-powered digital coaches designed to form long-term social-emotional connections with users through conversations. We have developed a CA for cigarette smoking cessation. In a pilot randomized trial (N = 415), we will compare the experimental messaging program (n = 155) with the standard of care national government smoking cessation messaging program (n = 157), and then we will compare immediate (n=51) versus delayed (n=51) access to the the experimental messaging program, to assess 12-week usability, receptivity, and preliminary cessation results in adults in western Washington State and nationally across the US who want to quit smoking.

Primary Outcome

No smoking in the past 30 days, as reported 3 month post treatment.

Interventions

  • BEHAVIORAL Immediate access to novel messaging program intervention
  • BEHAVIORAL Immediate access to standard of care messaging program intervention
  • BEHAVIORAL Delayed access to novel novel messaging program intervention

Trial Details

FieldValue
Enrollment Target 404 participants
Start Date 2018-09-17
Est. Completion 2020-12-02
Phase NA
Fred Hutchinson Cancer Center

483 total trials

What the finished NCT03585231 record still lists

NCT03585231 is an interventional study that assigns participants to a tested intervention. The registered 404 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (71% lower).

The record links to 0 conditions, and to 3 interventions - of which Immediate access to novel messaging program intervention is the first listed.

NCT03585231 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03585231 about?

NCT03585231 is a clinical study titled "Pilot Trial of the First Conversational Agent for Smoking Cessation (QuitBot)". Conversational agents (CAs) are computer-powered digital coaches designed to form long-term social-emotional connections with users through conversations. We have developed a CA for cigarette smoking cessation. In a pilot randomized trial (N = 415), we will compare the experimental messaging program...

What is the current status of trial NCT03585231?

This trial is currently completed. It is a NA study. The enrollment target is 404 participants. The study started on 2018-09-17. Estimated completion is 2020-12-02.

What interventions are being tested in trial NCT03585231?

The interventions under investigation include: Immediate access to novel messaging program intervention (BEHAVIORAL), Immediate access to standard of care messaging program intervention (BEHAVIORAL), Delayed access to novel novel messaging program intervention (BEHAVIORAL).

Who is sponsoring clinical trial NCT03585231?

This trial is sponsored by Fred Hutchinson Cancer Center, which has 483 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT03585231's enrollment target sits among peer trials

404 244th of 2000 higher than 1,757 of 2,000 other NA trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other NA 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 NCT03585231, the US trial registry maintained by the National Library of Medicine. NCT03585231 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.