Kratom extract effects under the microscope: new study recruits regular users
NCT ID NCT06640569
First seen Jun 27, 2026 · Last updated Aug 14, 2026 · Updated 2 times
Summary
This study from Johns Hopkins University aims to understand how commercial kratom extract products affect mood, thinking, and physical signs like heart rate and pupil size in adults who use them regularly. Researchers will also study how the body processes these products. The goal is to gather basic information, not to treat any condition.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Johns Hopkins University
Baltimore, Maryland, 21224, United States
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Johns Hopkins University Behavioral Pharmacology Research Unit
Baltimore, Maryland, 21224, United States
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