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NCT04949711 · ClinicalTrials.gov registry record · NA

Impacts of Subsidized Ridesharing on Drunk Driving, Alcohol Consumption, and Mobility

A NA study of Alcohol Drinking and Driving Drunk, sponsored by Columbia University.

Completed
Registry status
NA
Development phase
7,034
Enrollment target
1
Study location

NCT04949711: Completed NA study of Alcohol Drinking and Driving Drunk, sponsored by Columbia University.

NCT04949711 is a NA study of Alcohol Drinking and Driving Drunk that has completed, run by Columbia University. The registered enrollment target is 7,034 participants, above the 548-participant average among 85 other Alcohol Drinking trials with a reported enrollment target (1184% higher). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04949711, a NA study of Alcohol Drinking and Driving Drunk, has completed, sponsored by Columbia University.

COMPLETED
Registry status
NA
Development phase
7,034 participants
Enrollment target
1
Study location

Study Summary

The purpose of this research study is to understand people's alcohol use in public places and their risks for harm. The overall goal of this study is to test the effects of subsidized ridesharing as an intervention to reduce self-reported alcohol-impaired driving, along with alcohol consumption and changes to mobility.

Primary Outcome

Participants will provide two self-reported measures of impaired driving by indicating whether they "drove after drinking any alcohol" (driving after drinking) and "drove after drinking too much alcohol to drive safely" (driving while intoxicated) for each day during the previous 7 days. Data is recorded at baseline and at 1 week follow-up.

Interventions

  • BEHAVIORAL ridesharing voucher
  • BEHAVIORAL online shopping voucher

Study Locations (1)

New York

  • Columbia University Irving Medical Center - New York

Trial Details

FieldValue
Enrollment Target 7,034 participants
Start Date 2022-05-01
Est. Completion 2025-04-04
Phase NA
Columbia University

958 total trials

What the finished NCT04949711 record still lists

NCT04949711 is an interventional study that assigns participants to a tested intervention. Its 7,034 participants enrollment target places it among the larger protocols in the corpus, above the 548-participant average among 85 other Alcohol Drinking trials with a reported enrollment target (1184% higher).

The record links to 2 conditions, with Alcohol Drinking appearing as the primary indexed condition, and to 2 interventions - of which ridesharing voucher is the first listed.

NCT04949711 reports a single indexed study location in New York.

Frequently Asked Questions

What is clinical trial NCT04949711 about?

NCT04949711 is a clinical study titled "Impacts of Subsidized Ridesharing on Drunk Driving, Alcohol Consumption, and Mobility". The purpose of this research study is to understand people's alcohol use in public places and their risks for harm. The overall goal of this study is to test the effects of subsidized ridesharing as an intervention to reduce self-reported alcohol-impaired driving, along with alcohol consumption and ...

What is the current status of trial NCT04949711?

This trial is currently completed. It is a NA study. The enrollment target is 7,034 participants. The study started on 2022-05-01. Estimated completion is 2025-04-04.

What conditions does trial NCT04949711 study?

This clinical trial studies the following conditions: Alcohol Drinking, Driving Drunk.

What interventions are being tested in trial NCT04949711?

The interventions under investigation include: ridesharing voucher (BEHAVIORAL), online shopping voucher (BEHAVIORAL).

Who is sponsoring clinical trial NCT04949711?

This trial is sponsored by Columbia University, which has 958 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT04949711 being conducted?

This trial has 1 study location across New York. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Alcohol Drinking

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT04949711's enrollment target sits among peer trials

7,034 2nd of 85 the highest of 85 other Alcohol Drinking trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Alcohol Drinking 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 NCT04949711, the US trial registry maintained by the National Library of Medicine. NCT04949711 (large enrollment · single site footprint · completed) retrieved and formatted by PlainTrial, see methodology.