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CVL-231

Phase 2

Blood Pressure | Small molecule | Psychiatry |AbbVie Inc.|Trials Updated: Sep 15, 2026

CVL-231 development status

Highest phase Phase 2 (NCT07145918)
Phase scored for ABBVPhase 1
Registered trials 14 across 3 sponsors since Jul 2017

CVL-231 target and mechanism

ModalitySmall molecule

Also known as PF-06852231, Emraclidine, ABBV-1231

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials9
Total Enrollment1,453

FDA Designations

No designations recorded

CVL-231 clinical trials

CVL-231 · 9 trials · 6 indications

Phase 2 3Phase 1 6
NCT07145918A Study to Assess Adverse Events, Change in Disease Activity, and How Oral Emraclidine Moves Through the Body in Adult Participants With SchizophreniaSchizophrenia
RECRUITING268 Analytics
NCT05227703A Trial of 15 and 30 mg Doses of CVL-231 (Emraclidine) in Participants With SchizophreniaSchizophrenia
COMPLETED391 Analytics
NCT05227690A Trial of 10 and 30 mg Doses of CVL-231 (Emraclidine) in Participants With SchizophreniaSchizophrenia
COMPLETED385 Analytics
PHASE2RECRUITING
A Study to Assess Adverse Events, Change in Disease Activity, and How Oral Emraclidine Moves Through the Body in Adult Participants With Schizophrenia
SchizophreniaUnlock trial analytics
PHASE2COMPLETED
A Trial of 15 and 30 mg Doses of CVL-231 (Emraclidine) in Participants With Schizophrenia
SchizophreniaUnlock trial analytics
PHASE2COMPLETED
A Trial of 10 and 30 mg Doses of CVL-231 (Emraclidine) in Participants With Schizophrenia
SchizophreniaUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants with Adverse Events (AEs)
Up to approximately 74 days

An adverse event (AE) is defined as any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment. The investigator assesses the relationship of each event to the use of study.

Part A Only-Maximum Observed Plasma Concentration (Cmax) of Emraclidine
Up to approximately 24 days

Cmax of Emraclidine

Part A Only-Time to Cmax (Tmax) of Emraclidine
Up to approximately 24 days

Tmax of Emraclidine

Part A Only-Area Under the Concentration-Time Curve from Time 0 to Time t (AUCt) of Emraclidine
Up to approximately 24 days

AUCt of Emraclidine

Part A Only-Area under the plasma concentration-time curve over the dosing interval (AUCtau) of Emraclidine
Up to approximately 24 days

AUCtau of Emraclidine

Part A Only- Minimum plasma concentration (Cmin) of Emraclidine
Up to approximately 21 days

Cmin of Emraclidine

Part A Only-Average plasma concentration (Cavg) of Emraclidine
Up to approximately 21 days

Cavg of Emraclidine

Part A Only- Terminal Phase Elimination Half-Life (t1/2) of Emraclidine
Up to approximately 21 days

Terminal phase elimination half-life of Emraclidine

Part A Only-Terminal elimination rate constant (λz) of Emraclidine
Up to approximately 21 days

λz of Emraclidine

Part A Only-Apparent Clearance of Drug from Plasma (CL/F) of Emraclidine
Up to approximately 21 days

CL/F of Emraclidine

Part A Only-Apparent Volume of Distribution DuringTerminal Phase (Vz/F) of Emraclidine
Up to approximately 21 days

Vz/F of Emraclidine

Part A Only-Peak-to-trough ratio (PTR) of Emraclidine
Up to approximately 21 days

PTR of Emraclidine

Part A Only- Accumulation ratio for Cmax (RacCmax) of Emraclidine
Up to approximately 21 days

RacCmax of Emraclidine

Part A Only-Accumulation ratio for AUCtau (RacAUCtau) of Emraclidine
Up to approximately 21 days

RacAUCtau of Emraclidine

Part A Only-Maximum Observed Plasma Concentration (Cmax) of Metabolite (CV-0000364)
Up to approximately 24 days

Cmax of Metabolite (CV-0000364)

Part A Only-Area under the plasma concentration-time curve over the dosing interval (AUCtau) of Metabolite (CV-000036)
Up to approximately 24 days

AUCtau of Metabolite (CV-000036)

Part A Only-Time to Cmax (Tmax) of Metabolite (CV-0000364)
Up to approximately 24 days

Tmax of Metabolite (CV-0000364)

Part A Only-Area Under the Concentration-Time Curve from Time 0 to Time t (AUCt) Metabolite (CV-000036)
Up to approximately 24 days

AUCt of Metabolite (CV-000036)

Part A Only-Metabolite to Parent Ratio (MRCmax) of Metabolite (CV-0000364) calculated from Cmax
Up to approximately 21 days

MRCmax of Metabolite (CV-000036)

Part A Only- Metabolite to Parent Ratio (MRAUCtau) of Metabolite (CV-0000364)
Up to approximately 21 days

MRAUCtau of Metabolite (CV-0000364)

Part A Only- Terminal Phase Elimination Half-Life (t1/2) of of Metabolite (CV-0000364)
Up to approximately 21 days

Terminal phase elimination half-life of Metabolite (CV-0000364)

Part A Only-Terminal elimination rate constant (λz) of Metabolite (CV-0000364)
Up to approximately 21 days

λz of Metabolite (CV-0000364)

Part A Only-Peak-to-trough ratio (PTR) of Metabolite (CV-0000364)
Up to approximately 21 days

PTR of Metabolite (CV-0000364)

Part B Only-Change from Baseline in Positive and Negative Syndrome Scale (PANSS) total score
Up to approximately week 6

PANSS is a 30-item clinician-reported rating scale which assesses both the positive and negative symptom syndromes of patients with schizophrenia. The PANSS consists of 3 subscales containing a total of 30 symptom constructs. For each symptom construct, severity is rated on a 7-point scale, with a score of 1 indicating the absence of symptoms and a score of 7 indicating extremely severe symptoms.

Part B Only-Maximum Observed Plasma Concentration (Cmax) of Emraclidine
Up to approximately 24 days

Cmax of Emraclidine

Part B Only-Time to Cmax (Tmax) of Emraclidine
Up to approximately 24 days

Tmax of Emraclidine

Part B Only-Area Under the Concentration-Time Curve from Time 0 to Time t (AUCt) of Emraclidine
Up to approximately 24 days

AUCt of Emraclidine

Part B Only-Area under the plasma concentration-time curve over the dosing interval (AUCtau) of Emraclidine
Up to approximately 24 days

AUCtau of Emraclidine

Change From Baseline at Week 6 in the Positive and Negative Syndrome Scale (PANSS) Total Score
Baseline through Week 6

The PANSS measures symptom severity of participants with schizophrenia and contains 7 positive symptom scales, 7 negative system scales, and 16 general psychopathology symptom scales. Participants are rated from 1 to 7 on each symptom scale with a total minimum score of 30 and a maximum score of 210. Baseline was defined as the last value obtained prior to initiation of investigational medicinal product (IMP). Change from baseline for a given endpoint was defined as the value on a given Study Day (Time Point) minus the Baseline Value. A decrease in PANSS total score correlates with an improvement in schizophrenia symptoms.

Maximum Observed Plasma Concentration (Cmax) of Emraclidine
Pre-dose and at multiple timepoints post-dose up to Day 5
Maximum Observed Unbound Plasma Concentration (Cmax,u) of Emraclidine
Pre-dose and at multiple timepoints post-dose up to Day 5
Area Under the Plasma Concentration-time Curve from Time Zero to t (AUC0-t) of Emraclidine
Pre-dose and at multiple timepoints post-dose up to Day 5
Area Under the Unbound Plasma Concentration-time Curve from Time Zero to t (AUC0-t,u) of Emraclidine
Pre-dose and at multiple timepoints post-dose up to Day 5
Area Under the Plasma Concentration-time Curve from Time Zero to Infinity (AUCinf) of Emraclidine
Pre-dose and at multiple timepoints post-dose up to Day 5
Area Under the Unbound Plasma Concentration-time Curve From Time Zero to Infinity (AUCinf,u) of Emraclidine
Pre-dose and at multiple timepoints post-dose up to Day 5
Part A: Number of Participants With Treatment-emergent Adverse Events (TEAEs)
Up to Day 28
Part A: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Parameters
Up to Day 17
Part A: Number of Participants With Clinically Significant Changes in Laboratory Assessments
Up to Day 17
Part A: Number of Participants With Clinically Significant Changes in Vital Sign Measurements
Up to Day 17
Part A: Number of Participants With Clinically Significant Changes in Physical and Neurological Examination Results
Up to Day 17
Part A: Changes in Suicidality Assessed Using the Columbia-Suicide Severity Rating Scale (C-SSRS)
Up to Day 17

The C-SSRS includes 'yes' or 'no' responses for assessment of suicidal ideation and behavior as well as numeric ratings for 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.

Part A: Number of Participants With Clinically Significant Findings in Extrapyramidal Symptoms Evaluated Using the Simpson Angus Scale (SAS)
Up to Day 14

The SAS consists of a list of 10 symptoms of parkinsonism. Each item is rated on a 5-point scale, with a score of 0 representing absence of symptoms and a score of 4 representing a severe condition. The SAS total score is the sum of the scores for all 10 items.

Part A: Number of Participants With Clinically Significant Findings in Extrapyramidal Symptoms Evaluated Using the Abnormal Involuntary Movement Scale (AIMS)
Up to Day 14

The AIMS assessment consists of 10 items describing symptoms of dyskinesia. Each item is rated on a 5-point scale, with a score of 0 representing absence of symptoms (for item 10, no awareness), and a score of 4 indicating a severe condition (for item 10, awareness, severe distress). In addition, the AIMS includes 2 yes/no questions that address the participant's dental status.

Part A: Number of Participants With Clinically Significant Findings in Extrapyramidal Symptoms Evaluated Using the Barnes Akathisia Rating Scale (BARS)
Up to Day 14

The BARS consists of 4 items related to akathisia. The first 3 items are rated on a 4-point scale, with a score of 0 representing absence of symptoms and a score of 3 representing a severe condition. The global clinical evaluation is made on a 6-point scale, with a score of 0 representing absence of symptom and a score of 5 representing severe akathisia.

Part B: Number of Participants With TEAEs, Clinically Significant Changes in ECG Parameters, Laboratory Assessments, Vital Sign Measurements, and Physical and Neurological Examination Results
Up to Day 28
Part B: Changes in Suicidality Assessed Using the C-SSRS
Up to Day 28
Part B: Number of Participants With Clinically Significant Findings in Extrapyramidal Symptoms
Up to Day 28

Extrapyramidal symptoms will be evaluated using SAS, AIMS, and BARS scales.

Secondary Endpoints

Part B Only-Change from Baseline in in Clinical Global Impression of Severity (CGIS) score
Up to approximately Week 6
Part B Only-Change from Baseline in Positive and Negative Syndrome Scale (PANSS) total score
Up to approximately 74 days
Part B Only-Number of Participants achieving ≥ 30% improvement in PANSS total score
Up to approximately week 6
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Emraclidine Part AEXPERIMENTALParticipants will be assigned to receive one of multiple ascending doses of oral emraclidine for 14 or up to 21 days, followed by a 30-day safety follow-up period.
Placebo-Part AEXPERIMENTALParticipants will be assigned to receive one of multiple ascending doses of oral placebo for 14 or up to 21 days, followed by a 30-day safety follow-up period.
Emraclidine-Part BEXPERIMENTALParticipants will receive oral emraclidine for 42 days followed by a 30-day safety follow-up period.
Placebo-Part BEXPERIMENTALParticipants will receive placebo for 42 days followed by a 30-day safety follow-up period.
CVL-231 15 mg, once daily (QD)EXPERIMENTALOral Dose
CVL-231 30 mg, once daily (QD)EXPERIMENTALOral Dose
Placebo, once daily (QD)PLACEBO_COMPARATOROral Dose
PlaceboPLACEBO_COMPARATORParticipants received placebo tablets orally once daily (QD) through Day 45 of Week 6.
Emraclidine 10 mg, once daily (QD)EXPERIMENTALParticipants received emraclidine 10 mg tablets orally once daily (QD) through Day 45 of Week 6.
Emraclidine 30 mg, once daily (QD)EXPERIMENTALParticipants received emraclidine 30 mg tablets orally once daily (QD) through Day 45 of Week 6.
Mild Renal ImpairmentEXPERIMENTALParticipants will receive a single oral dose of 10 milligrams (mg) emraclidine on Day 1.
Moderate Renal ImpairmentEXPERIMENTALParticipants will receive a single oral dose of 10 mg emraclidine on Day 1.
Severe Renal ImpairmentEXPERIMENTALParticipants will receive a single oral dose of 10 mg emraclidine on Day 1.
Normal Renal FunctionEXPERIMENTALParticipants will receive a single oral dose of 10 mg emraclidine on Day 1.
Severe Hepatic ImpairmentEXPERIMENTALParticipants will receive a single oral dose of 10 milligrams (mg) emraclidine.
Moderate Hepatic ImpairmentEXPERIMENTALParticipants will receive a single oral dose of 10 mg emraclidine.
Mild Hepatic ImpairmentEXPERIMENTALParticipants will receive a single oral dose of 10 mg emraclidine.
Normal Hepatic FunctionEXPERIMENTALParticipants will receive a single oral dose of 10 mg emraclidine.
Part A: Cohort 1: Emraclidine Dose 1EXPERIMENTALParticipants will receive emraclidine dose 1 or emraclidine-matching placebo tablets, orally, once daily (QD) up to Day 14.
Part A: Cohort 2: Emraclidine Dose 2EXPERIMENTALParticipants will receive emraclidine dose 2 or emraclidine-matching placebo tablets, orally, QD up to Day 14.
Part A: Cohort 3: Emraclidine Dose 3EXPERIMENTALParticipants will receive emraclidine dose 3 or emraclidine-matching placebo tablets, orally, QD up to Day 14.
Part A: Cohort 4: Emraclidine Dose 4EXPERIMENTALParticipants will receive emraclidine dose 4 or emraclidine-matching placebo tablets, orally, QD up to Day 14.
Part A: Cohort 5: Emraclidine Dose 5EXPERIMENTALParticipants will receive emraclidine dose 5 or emraclidine-matching placebo tablets, orally, QD up to Day 14.
Part B: Cohort 6: Emraclidine Dose 6EXPERIMENTALParticipants with dementia due to AD will receive emraclidine dose 6 or emraclidine-matching placebo tablets, orally, QD up to Day 28.

Interventions

NameTypeDescription
EmraclidineDRUGOral Tablets
PlaceboDRUGOral Tablets
Emraclidine 15 mgDRUGEmraclidine 15 mg, oral (tablet), once per day (QD) for 6 weeks
Emraclidine 30 mgDRUGEmraclidine 30 mg, oral (tablet), QD for 6 weeks
Emraclidine 10 mgDRUGEmraclidine 10 mg, oral (tablet), once per day for 6 weeks
CVL-231DRUGCVL-231
Matching PlaceboDRUGPlacebo matching CVL-231
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersNo
Study Sites7

Inclusion Criteria: * BMI within 18 to 40 kg/m2 (inclusive of both values), and body weight \> 50 kg (110 lbs). * (Part A only): Positive and Negative Syndrome Scale (PANSS) total score \< 80 at Screening and at Baseline * (Part B only): Participant experiencing an acute exacerbation of psychotic s...

Countries:United StatesBulgariaHungary
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Recent Changes (Last 90 Days)

LOWSep 16, 2026NCT07145918lastUpdatePostDate: changed
LOWSep 16, 2026NCT07145918lastUpdatePostDate: changed
LOWSep 16, 2026NCT07145918lastUpdatePostDate: changed
LOWSep 16, 2026NCT07145918lastUpdatePostDate: changed

Frequently asked questions about CVL-231

What is CVL-231 used for?

CVL-231 is an investigational small molecule being developed for schizophrenia and for blood pressure effects in people with schizophrenia. It is in Phase 1 clinical development and is not yet approved by the FDA.

Who makes CVL-231?

CVL-231 is being developed by AbbVie Inc. (NYSE: ABBV). The company is conducting Phase 1 clinical trials to evaluate the drug in schizophrenia and related blood pressure measures.

What phase is CVL-231 in?

CVL-231 is in Phase 1 clinical development. It is an investigational drug and has not been approved by the FDA. Two Phase 1 trials have been completed, with no active trials currently listed.

What clinical trials is CVL-231 in?

CVL-231 has completed three Phase 1 trials: NCT04136873, a multiple ascending dose trial in schizophrenia; NCT04787302, a PET trial measuring brain receptor occupancy; and NCT05245539, a trial of its effect on 24-hour ambulatory blood pressure in schizophrenia participants.

Is CVL-231 the same as any other drug?

No alternative names for CVL-231 have been disclosed. It is referred to only as CVL-231 in clinical trial records and by its developer, AbbVie Inc.