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Healthy volunteers help compare two similar drugs in Early-Stage trial

NCT ID NCT02336347

Knowledge-focused Sponsor: Otsuka Pharmaceutical Development & Commercialization, Inc. Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This early-stage study enrolled 62 healthy adults to compare how two drugs, AVP-786 and AVP-923, are processed in the body. Participants received both drugs at different times to measure drug levels and safety. The goal was purely to gather information, not to treat any disease.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
AVP-786 (deuterated dextromethorphan/quinidine) and AVP-923 (dextromethorphan/quinidine)

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

62 people

The number who actually took part.

Started

May 2014

Finished

Mar 2015

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 60 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Healthy adult males or females * 18 - 60 years of age * BMI 18 - 32 kg/m2 Exclusion Criteria: * History or presence of significant disease * History of substance abuse and/or alcohol abuse with the past 2 years * Use of tobacco-containing or nicotine-containing products within 6 months * Use of any prescription or the over-the-counter medications within 14 days

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthy volunteer

Contacts and locations

Locations

  • Covance Dallas Clinical Research Unit

    Dallas, Texas, 75247, United States

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