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Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Evaluating a Potential Pharmacokinetic Kratom-oxycodone Interaction Concurrent With Clinical Endpoints

ClinicalTrials.gov ID: NCT05846451

Public ClinicalTrials.gov record NCT05846451. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 17, 2026, 10:11 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The goal of this study is to investigate whether the botanical product kratom affects how the body processes the opioid drug oxycodone. The main research questions to be answered are two-fold: 1. How does kratom affect the manner in which oxycodone is metabolized (broken down and removed) by the body? 2. Does kratom change the effects oxycodone exerts on the body? Healthy adult participants will complete four study arms, during which they will be given the following: * Kratom (as a tea) * A single dose of oxycodone (as a tablet) * Kratom tea and a single dose of oxycodone * Kratom tea for four days, then kratom tea and a single dose of oxycodone

Study identification

NCT ID
NCT05846451
Recruitment status
Recruiting
Study type
Interventional
Phase
Early Phase 1
Enrollment
16 participants

Conditions and interventions

Interventions

Dietary Supplement · Drug

Eligibility (public fields only)

Age range
21 Years to 45 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jun 1, 2023 (Actual)
Primary completion
Nov 1, 2026 (Estimated)
Completion
Dec 1, 2026 (Estimated)
Last update posted
Jun 3, 2026

2023 – 2026

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Washington State University College of Pharmacy and Pharmaceutical Sciences Spokane Washington 99202 Recruiting

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05846451, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jun 3, 2026 · Synced Oct 17, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT05846451 live on ClinicalTrials.gov.

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