- Conditions
- Safety and Tolerability in Healthy Subjects
- Interventions
- mitragynine, Placebo
- Drug
- Lead sponsor
- National Institute on Drug Abuse (NIDA)
- NIH
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 32 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Overland Park, Kansas
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 1–8
of 8
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Kratom Pharmacodynamics, Kratom Pharmacokinetics
- Interventions
- Not listed
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 2 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2026
- U.S. locations
- 2
- States / cities
- Baltimore, Maryland
- Conditions
- Chronic Pain, Fatigue, Substance Use Disorders
- Interventions
- Not listed
- Lead sponsor
- National Institute on Drug Abuse (NIDA)
- NIH
- Eligibility
- 18 Years and older
- Enrollment
- 396 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Kratom Pharmacokinetics, Kratom Pharmacodynamics, Kratom
- Interventions
- Effects from acute kratom exposure
- Behavioral
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 22 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2028
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Interaction Drug Food
- Interventions
- Midazolam HCl, Dextromethorphan HBr, Kratom
- Drug · Dietary Supplement
- Lead sponsor
- Washington State University
- Other
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 15 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2021
- U.S. locations
- 1
- States / cities
- Spokane, Washington
- Conditions
- Safety, Pharmacokinetics, Pharmacodynamics
- Interventions
- Kratom, Placebo
- Drug
- Lead sponsor
- Altasciences Company Inc.
- Industry
- Eligibility
- 18 Years to 59 Years
- Enrollment
- 40 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Overland Park, Kansas
- Conditions
- Herbal Interaction
- Interventions
- Kratom, Oxycodone
- Dietary Supplement · Drug
- Lead sponsor
- Washington State University
- Other
- Eligibility
- 21 Years to 45 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- Spokane, Washington
- Conditions
- Opioid Use, Substance Use Disorders, Opioid Analgesia
- Interventions
- Placebo, Oxycodone HCl, Kratom 8g, Kratom 12g, Kratom 16g, Kratom 4g
- Drug
- Lead sponsor
- Christopher D. Verrico
- Other
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 72 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2029
- U.S. locations
- 1
- States / cities
- Houston, Texas