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Healthy volunteers help test new drug interactions

NCT ID NCT06729970

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 study looked at how a new drug called KarXT interacts with three common mood stabilizers (lithium, valproic acid, and lamotrigine) in 133 healthy adults. Researchers measured drug levels in the blood and checked for side effects. The goal was to understand if these drugs affect each other's safety and processing in the body.

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

133 people

The number who actually took part.

Started

Dec 2024

Finished

Jan 2026

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 65 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 male and female \[individual not of childbearing potential (INOCBP)\] participants as determined by no clinically significant deviation from normal in medical history, physical examination, 12-lead ECG, vital signs, and clinical laboratory determinations. * BMI of 18.0 to 32.0 kg/m2, inclusive. Exclusion Criteria: * History or presence of clinically significant cardiovascular, pulmonary, hepatic, renal, hematologic, GI, endocrine, immunologic, dermatologic, neurologic, or oncologic disease or any other condition that, in the opinion of the investigator, would jeopardize the safety of the participant or the validity of the study results. Note: Any grade of hepatic impairment (Child-Pugh Grade A or higher) is excluded. * Parts B and D only: History of pancreatitis. * Any significant acute or chronic medical illness, in the opinion of the investigator. * History or high risk of urinary retention, gastric retention, or narrow-angle glaucoma or known history of prostate hypertrophy or nocturia. * Parts E \& F only: history of skin rash and mucus ulcerations of no obvious cause and Gilbert's syndrome * Other protocol-defined Inclusion/Exclusion criteria apply.

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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

  • Local Institution - 0001

    Los Alamitos, California, 90720-3115, United States

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