Completed PHASE2/PHASE3 INTERVENTIONAL 2-arm NCT00607269

Voucher-Based Incentives in a Prevention Setting (VIPS)

Sponsor: Friends Research Institute, Inc.

Interventions Voucher-Based Reinforcement Therapy

Updated 7 times since 2017 Last updated: Jul 30, 2013 Started: Apr 30, 2005 Primary completion: Feb 29, 2008 Completion: Feb 29, 2008

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This PHASE2/PHASE3 trial investigates Substance-related Disorders and is currently completed. Friends Research Institute, Inc. leads this study, which shows 7 recorded versions since 2005 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

7 versions recorded

Sep 2024 — Present [monthly]

Completed PHASE2/PHASE3
Jul 2024 — Sep 2024 [monthly]

Completed PHASE2/PHASE3

Phase: PHASE2_PHASE3 → PHASE2/PHASE3
Jan 2023 — Jul 2024 [monthly]

Completed PHASE2_PHASE3
Dec 2022 — Jan 2023 [monthly]

Completed PHASE2_PHASE3
Jan 2021 — Dec 2022 [monthly]

Completed PHASE2_PHASE3

▶ Show 2 earlier versions

Jun 2018 — Jan 2021 [monthly]

Completed PHASE2_PHASE3
Jan 2017 — Jun 2018 [monthly]

Completed PHASE2_PHASE3

First recorded

Apr 2005

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Friends Research Institute, Inc.
National Institute on Drug Abuse (NIDA)

Data source: Friends Research Institute, Inc.

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Los Angeles, United States