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NCT04325659 · ClinicalTrials.gov registry record · Phase 2
An Innovative Intervention for OUD Treatment
A Phase 2 study, sponsored by Johns Hopkins University.
- Completed
- Registry status
- Phase 2
- Development phase
- 36
- Enrollment target
NCT04325659: Completed Phase 2 study, sponsored by Johns Hopkins University.
NCT04325659 is a Phase 2 study that has completed, run by Johns Hopkins University. The registered enrollment target is 36 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (73% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04325659, a Phase 2 study, has completed, sponsored by Johns Hopkins University.
- COMPLETED
- Registry status
- Phase 2
- Development phase
- 36 participants
- Enrollment target
Study Summary
The Bridge Device (BD) is a neuromodulator medical device that has been cleared by the FDA for Opioid Use Disorder (OUD) treatment. Importantly, medical devices reviewed by the FDA are cleared (based on safety) rather than approved (based on efficacy), which means the BD did not need to demonstrate efficacy before it became commercially available. As a result, the device was not required to have a sham-controlled trial for FDA clearance and there is no active research, to the investigators' knowledge, that specifically addresses the degree to which opioid withdrawal can be treated through neuromodulation. To rigorously evaluate the efficacy of the BD for treating OUD, the investigators will enroll persons with active OUD, not currently receiving medications for OUD. Participants will be recruited and admitted to the Clinical Research Unit (CRU) for a 2-3 week period. During participants' residential stay, participants will be stabilized for 7-11 days on four times daily morphine (30 mg, SC) and undergo a precipitated withdrawal challenge using the opioid antagonist naloxone, approximately \>= 4 days of morphine maintenance. This is a standard practice for the investigators' study and allows the investigators to objectively assess dependence. The BD and study medication will begin following morphine stabilization. Participants will be randomly assigned to one of three conditions (1) active BD with placebo (BD/P), (2) sham BD with lofexidine (SBD/L), or (3) sham BD and placebo (SBD/P). Participants will use the BD for 5 days and will receive study drug for 7 days. Participants will be monitored for an additional 4 days after device removal to determine whether withdrawal resumes. Participants will undergo a second naloxone challenge after removal of the device/capsule completion to verify lack of opioid tolerance and will be encouraged to begin treatment with oral naltrexone followed by extended release naltrexone. Throughout the residential stay, all participants wil
Primary Outcome
The number of participants retained (dichotomous: retained, not retained) during the 5 day intervention. Greater retention is indicative of a better treatment outcome.
Interventions
- DRUG Placebo
- DRUG Lofexidine
- DEVICE Bridge Device
- DEVICE Sham Bridge Device
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 36 participants |
| Start Date | 2020-11-15 |
| Est. Completion | 2025-04-20 |
| Phase | Phase 2 |
What the finished NCT04325659 record still lists
NCT04325659 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 36 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (73% lower).
The record links to 0 conditions, and to 4 interventions - of which Placebo is the first listed.
NCT04325659 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04325659 about?
NCT04325659 is a clinical study titled "An Innovative Intervention for OUD Treatment". The Bridge Device (BD) is a neuromodulator medical device that has been cleared by the FDA for Opioid Use Disorder (OUD) treatment. Importantly, medical devices reviewed by the FDA are cleared (based on safety) rather than approved (based on efficacy), which means the BD did not need to demonstrate ...
What is the current status of trial NCT04325659?
This trial is currently completed. It is a Phase 2 study. The enrollment target is 36 participants. The study started on 2020-11-15. Estimated completion is 2025-04-20.
What interventions are being tested in trial NCT04325659?
The interventions under investigation include: Placebo (DRUG), Lofexidine (DRUG), Bridge Device (DEVICE), Sham Bridge Device (DEVICE).
Who is sponsoring clinical trial NCT04325659?
This trial is sponsored by Johns Hopkins University, which has 1,448 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT04325659's enrollment target sits among peer trials
36 1496th of 2000 higher than 477 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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