Skip to content

Study to Assess Safety and Tolerability of KarXT With Administration of Antiemetics in Healthy Volunteers

A Phase 4, Randomized, Open Label Study to Evaluate the Safety and Tolerability of Twice Daily Xanomeline/Trospium Chloride (KarXT) With Prophylactic and PRN Antiemetic Use in Healthy Volunteers

Status
Not yet recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07681076
Enrollment
225
Registered
2026-07-02
Start date
2026-08-03
Completion date
2026-11-30
Last updated
2026-07-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Keywords

BMS-986510, KarXT, Xanomeline/Trospium, Antiemetics, Nausea, Vomiting, Gastrointestinal side effects

Brief summary

This study looks at how to reduce nausea and vomiting in people taking KarXT which is used to treat mental health conditions like schizophrenia. KarXT can cause stomach-related side effects, especially in the first couple of weeks. In this study, healthy volunteers will take KarXT along with anti-nausea medication, either regularly (to prevent symptoms) or as needed. The goal is to see how well these strategies help reduce nausea and vomiting and how safe the combination is. The results will help doctors better manage side effects and make treatment more comfortable for patients starting KarXT.

Interventions

DRUGKarXT

Specified dose on specified days

Specified dose on specified days

DRUGOndansetron

Specified dose on specified days

Specified dose on specified days

Sponsors

Karuna Therapeutics, Inc., a Bristol Myers Squibb company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Participants must be healthy male and female participants as determined by no clinically significant deviation from normal in medical history, physical examination, 12-lead ECG, VS, and clinical laboratory determinations. * Participants must be willing and able to be confined to an inpatient setting for a 3-week duration, follow instructions, and comply with the protocol requirements. * Participants must have BMI ≥ 18 and ≤ 40 kg/m2. * Individuals of childbearing potential (IOCBP) must be willing and able to adhere to the contraception guidelines.

Exclusion criteria

* Participants must not have history or presence of clinically significant cardiovascular (eg, untreated or unstable hypertension, clinically significant tachycardia), pulmonary, renal, hematologic, gastrointestinal (\[GI\] eg, obstructive disorders \[including conditions that may decrease GI motility, such as ulcerative colitis, intestinal atony, and myasthenia gravis\], active biliary disease \[including symptomatic gallstones\]), 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. * Participants must not have history of moderate to severe alcohol use disorder or a substance (other than nicotine or caffeine) use disorder within the past 12 months or a positive urine drug screen (UDS) for a substance other than cannabis at screening or baseline. * Participants must not have history or high risk of urinary retention, gastric retention, or narrow-angle glaucoma. * Participants must not have active biliary disease (eg, symptomatic gallstones). Participants with other biliary histories are eligible and should be discussed with the medical monitor. * Other protocol-defined Inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with Treatment Emergent Adverse Events (TEAEs)Up to Day 21Nausea and vomiting

Secondary

MeasureTime frameDescription
Number of participants with TEAEsUp to Day 14Nausea and vomiting
Time to first onset of nausea and vomitingUp to Day 21
Time to resolution of first episode of nausea or vomitingUp to Day 21
Number of participants with serious TEAEsUp to Day 28
Number of participants with Adverse Events of Special Interests (AESIs)Up to Day 28
Number of participants with TEAEs leading to discontinuationUp to Day 28
Number of participants with clinically abnormal Vital signsUp to Day 28
Number of participants with electrocardiogram (ECG) abnormalitiesUp to Day 21

Contacts

CONTACTBMS Clinical Trials Contact Center www.BMSClinicalTrials.com
Clinical.Trials@bms.com855-907-3286
CONTACTFirst line of the email MUST contain NCT # and Site #.
STUDY_DIRECTORBristol-Myers Squibb

Bristol-Myers Squibb

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 3, 2026