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A Trial to Evaluate the Effects of Itraconazole and Carbamazepine on the Pharmacokinetics of Emraclidine and of Emraclidine on the Pharmacokinetics of Metformin in Healthy Adult Participants

A Phase 1, Open-label, Three-Part, Fixed-Sequence Trial in Healthy Adult Participants to Evaluate the Effects of Itraconazole and Carbamazepine on the Single-Dose Pharmacokinetics of Emraclidine, and the Effect of Emraclidine on the Single-Dose Pharmacokinetics of Metformin

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05965219
Enrollment
60
Registered
2023-07-28
Start date
2023-08-15
Completion date
2023-11-10
Last updated
2024-04-02

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

Conditions

Healthy Volunteers

Brief summary

The primary purpose of the study is to evaluate the effect of itraconazole, a strong cytochrome P450 (CYP) 3A4 inhibitor, on the pharmacokinetics (PK) of emraclidine and metabolite CV-0000364 in Part A, the effect of carbamazepine, a strong CYP3A4 inducer, on the PK of emraclidine and metabolite CV-0000364 in Part B, and to evaluate the effect of emraclidine on the PK of metformin in Part C in healthy adult participants.

Interventions

DRUGCarbamazepine

Carbamazepine tablets.

DRUGMetformin

Metformin tablets.

DRUGItraconazole

Itraconazole oral solution.

Emraclidine tablets.

Sponsors

Cerevel Therapeutics, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

for All Participants: * Healthy as determined by medical evaluation, including medical and psychiatric history, physical and neurological examinations, ECG, vital sign measurements, and laboratory test results, as evaluated by the investigator. * Body mass index of 18.5 to 35.0 kilograms per square meter (kg/m\^2), inclusive, and a total body weight ≥50 kilograms (kg) (110 pounds \[lbs\]). Inclusion Criteria for Part A: * Male and female (women of nonchildbearing potential only) participants, ages 18 to 55 years, inclusive, at the time of signing the informed consent form (ICF). Inclusion Criteria for Part B: * Male and female (women of nonchildbearing potential only) participants, ages 18 to 55 years, inclusive, at the time of signing the ICF. Inclusion Criteria for Part C: * Male and female (both women of childbearing and nonchildbearing potential) participants, ages 18 to 55 years, inclusive, at the time of signing the ICF. * Sexually active women of childbearing potential must agree to use at least an acceptable birth control method during the trial and for 7 days after the last dose of IMP. Acceptable birth control methods that result in a failure rate of more than 1% per year include the following: * Progestogen-only oral hormonal contraception, where inhibition of ovulation is not the primary mode of action * Male or female condom with or without spermicide * Cap, diaphragm, or sponge with spermicide

Exclusion criteria

for All Participants: * Current or past history of significant cardiovascular, pulmonary, gastrointestinal, renal, hepatic, metabolic, genitourinary, endocrine (including diabetes mellitus, thyroid disorders), malignancy, hematological, immunological, neurological, or psychiatric disease that, in the opinion of the investigator or medical monitor, could compromise either participant safety or the results of the trial. * Yes responses for any of the following items on the C-SSRS (within the individual's lifetime): * Suicidal Ideation Item 3 (Active Suicidal Ideation With Any Methods \[Not Plan\] Without Intent to Act) * Suicidal Ideation Item 4 (Active Suicidal Ideation With Some Intent to Act, Without Specific Plan) * Suicidal Ideation Item 5 (Active Suicidal Ideation With Specific Plan and Intent) * Any of the Suicidal Behavior items (Actual Attempt, Interrupted Attempt, Aborted Attempt, or Preparatory Acts/Behavior) * Yes responses for any of the following items on the C-SSRS (within past 12 months): * Suicidal Ideation Item 1 (Wish to be Dead) * Suicidal Ideation Item 2 (Non-Specific Active Suicidal Thoughts) * Serious risk of suicide in the opinion of the investigator is also exclusionary. * Any condition or surgery that could possibly affect drug absorption, including, but not limited to, bowel resections, bariatric weight loss surgery/procedures, gastrectomy, and cholecystectomy. * Positive result for human immunodeficiency virus (HIV) antibody, hepatitis B surface antigen, hepatitis B total core antibody, or hepatitis C antibody with detectable viral ribonucleic acid (RNA) levels at Screening. * Positive drug screen (including cotinine and tetrahydrocannabinol \[THC\]) or a positive test for alcohol.

Design outcomes

Primary

MeasureTime frame
Part C: AUCinf of MetforminPre-dose and at multiple time points post-dose from Day 1 in TP 1 up to Day 11 in TP 2 of Part C
Part C: Cmax of MetforminPre-dose and at multiple time points post-dose from Day 1 in TP 1 up to Day 11 in TP 2 of Part C
Part A: Area Under the Plasma Concentration-time Curve from Time Zero to Last Specified Sampling Time (AUC0-t) of Emraclidine and its Metabolite CV-0000364Pre-dose and at multiple time points post-dose from Day 1 in TP 1 up to Day 15 in TP 2 of Part A
Part B: AUC0-t of Emraclidine and its Metabolite CV-0000364Pre-dose and at multiple time points post-dose from Day 1 in TP 1 up to Day 20 in TP 2 of Part B
Part C: AUC0-t of MetforminPre-dose and at multiple time points post-dose from Day 1 in TP 1 up to Day 11 in TP 2 of Part C
Part A: Area Under the Plasma Concentration-time Curve from Time Zero to Infinity (AUCinf) of Emraclidine and its Metabolite CV-0000364Pre-dose and at multiple time points post-dose from Day 1 in TP 1 up to Day 15 in TP 2 of Part A
Part B: AUCinf of Emraclidine and its Metabolite CV-0000364Pre-dose and at multiple time points post-dose from Day 1 in TP 1 up to Day 20 in TP 2 of Part B
Part A: Maximum Observed Plasma Concentration (Cmax) of Emraclidine and its Metabolite CV-0000364Pre-dose and at multiple time points post-dose from Day 1 in TP 1 up to Day 15 in TP 2 of Part A
Part B: Cmax of Emraclidine and its Metabolite CV-0000364Pre-dose and at multiple time points post-dose from Day 1 in TP 1 up to Day 20 in TP 2 of Part B

Secondary

MeasureTime frameDescription
Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) ValuesUp to end of treatment in each part of the study (up to an average of 15 days)
Number of Participants With Clinically Significant Changes in Vital Sign MeasurementsUp to end of treatment in each part of the study (up to an average of 15 days)
Number of Participants With Clinically Significant Changes in Laboratory AssessmentsUp to end of treatment in each part of the study (up to an average of 15 days)
Number of Participants With Clinically Significant Changes in Physical and Neurological Examination ResultsUp to end of treatment in each part of the study (up to an average of 15 days)
Changes in Suicidality Assessed Using the Columbia Suicide Severity Rating Scale (C-SSRS) ScoreUp to end of treatment in each part of the study (up to an average of 15 days)The C-SSRS includes 'yes' or 'no' responses for assessment of suicidal ideation and behavior as well as numeric ratings for the severity of ideation, if present (from 1 to 5, with 5 being the most severe). Greater lethality or potential lethality of suicidal behaviors (endorsed on the behavior subscale) indicates increased risk.
Number of Participants With Treatment-emergent Adverse Events (TEAEs) Based on SeverityFrom the first dose up to 1 month following last dose with investigational medicinal product (IMP) in each part of the study

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026