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CVL-354

Phase 2

Opioid Use Disorder | Small molecule | Psychiatry |AbbVie Inc.|Trials Updated: Aug 14, 2026

CVL-354 development status

Highest phase Phase 2 (NCT06696755)
Phase scored for ABBVPhase 1
Registered trials 7 across 2 sponsors since Nov 2024

CVL-354 target and mechanism

Molecular targetKOR
Target classReceptor
ModalitySmall molecule

Also known as Icalcaprant, ABBV-1354

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials4
Total Enrollment417

FDA Designations

No designations recorded

CVL-354 clinical trials

CVL-354 · 4 trials · 5 indications

Phase 2 2Phase 1 2
NCT06696755A Study to Assess Adverse Events and Change in Disease Activity of Oral Icalcaprant in Adult Participants With Bipolar I or II DisorderBipolar I Disorder
RECRUITING195 Analytics
NCT07276997A Study to Assess Change in Disease Activity and Adverse Events of Oral Icalcaprant in Adult Participants With Major Depressive DisorderMajor Depressive Disorder
RECRUITING195 Analytics
PHASE2RECRUITING
A Study to Assess Adverse Events and Change in Disease Activity of Oral Icalcaprant in Adult Participants With Bipolar I or II Disorder
Bipolar I DisorderUnlock trial analytics
PHASE2RECRUITING
A Study to Assess Change in Disease Activity and Adverse Events of Oral Icalcaprant in Adult Participants With Major Depressive Disorder
Major Depressive DisorderUnlock trial analytics

Study Endpoints

Primary Endpoints

Change from Baseline to Week 6 in the MADRS (Montgomery-Åsberg Depression Rating Scale) total score
Up to approximately Week 6

MADRS is a depression rating scale consisting of 10 items representing the core symptoms of depressive illness, each rated 0 (no symptom) to 6 (severe symptom). Total score ranges from 0 (no depression) to 60 (severely depressed).

Number of Participants with Adverse Events (AEs)
Up to approximately 10 weeks

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

Change from Baseline in Montgomery-Åsberg Depression Rating Scale (MADRS) total score.
Up to approximately 6 weeks

Montgomery-Åsberg Depression Rating Scale (MADRS) The MADRS is a 10-item, clinician-rated scale that evaluates the participant's depressive symptomatology during the past week. Participants are to be rated on items assessing feelings of sadness, lassitude, pessimism, inner tension, suicidality, reduced sleep or appetite, difficulty in concentration, and lack of interest. Each item will be scored on a 7-point scale with a score of 0 reflecting no symptoms and a score of 6 reflecting symptoms of maximum severity.

Number of Participants with Abnormal Change from Baseline in Vital Sign Measurements
Up to approximately 15 days

Number of participants with abnormal change from baseline in vital sign measurements like systolic and diastolic blood pressure will be assessed.

Change From Baseline in Electrocardiograms (ECGs)
Up to approximately 15 days

12-lead resting ECG will be recorded.

Number of Participants with Abnormal Change in Physical Examinations
Up to approximately 15 days

Number of participants with abnormal change in physical examinations in areas like cardiovascular, respiratory, gastrointestinal, and neurological systems will be assessed.

Number of Participants with Abnormal Change in Clinical Laboratory Test Results Like Hematology will be Assessed
Up to approximately 15 days

Number of participants with abnormal change in clinical laboratory test results like hematology will be assessed.

Maximum observed concentration (Cmax) of ABBV-1354
Up to approximately 15 days

Cmax of ABBV-1354 will be assessed.

Time to Cmax (peak time, Tmax) of ABBV-1354
Up to approximately 15 days

Max of ABBV-1354 will be assessed.

Terminal phase elimination half-life (t1/2) of ABBV-1354
Up to approximately 15 days

Terminal phase elimination half-life (t1/2) of ABBV-1354 will be assessed.

Area under the plasma concentration-time curve (AUC) from time 0 to the time of the last measurable concentration (AUCt) of ABBV-1354
Up to approximately 15 days

AUCt of ABBV-1354 will be assessed.

Area under the plasma concentration-time curve (AUC) from time 0 to infinite time (AUCinf) of ABBV-1354
Up to approximately 15 days

AUCinf of ABBV-1354 will be assessed.

Amount of ABBV-1354 excreted in the urine over the sampling period (Aeu)
Up to approximately 15 days

Amount of ABBV-1354 excreted in the urine over the sampling period (Aeu) will be assessed.

Percent of ABBV-1354 excreted in the urine
Up to approximately 15 days

Percent excreted = 100 × (Aeu/dose).

Amount of ABBV-1354 excreted in the feces over the sampling period (Aeu)
Up to approximately 15 days

Amount of ABBV-1354 excreted in the feces over the sampling period (Aeu) will be assessed.

Percent of ABBV-1354 radioactivity excreted in the feces
Up to approximately 15 days

Percent excreted = 100 × (Aeu/dose).

Secondary Endpoints

Change from Baseline to Week 6 in Clinician Global Impression of Severity - Bipolar Disorder (CGI-S-BP) score
Up to approximately Week 6
Change from Baseline in Clinical Global Impression (CGIS)
Up to approximately 6 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Group 1: Icalcaprant Dose AEXPERIMENTALParticipants will receive oral Icalcaprant dose A once daily for 6 weeks and followed for 4 weeks.
Group 2: Icalcaprant Dose BEXPERIMENTALParticipants will receive oral Icalcaprant dose B once daily for 6 weeks and followed for 4 weeks.
Group 3: Placebo for IcalcaprantPLACEBO_COMPARATORParticipants will receive oral placebo for Icalcaprant daily for 6 weeks and followed for 4 weeks.
Icalcaprant Dose AEXPERIMENTALParticipants will receive oral Icalcaprant dose A once daily for 6 weeks and attend a follow up visit 30 days following end of treatment.
Icalcaprant Dose BEXPERIMENTALParticipants will receive oral Icalcaprant dose B once daily for 6 weeks and attend a follow up visit 30 days following end of treatment.
Placebo for IcalcaprantPLACEBO_COMPARATORParticipants will receive oral placebo once daily for 6 weeks and attend a follow up visit 30 days following end of treatment.
ABBV-1354EXPERIMENTALParticipants will receive a single dose of oral ABBV-1354 and followed 30 days post dose.

Interventions

NameTypeDescription
IcalcaprantDRUGOral Capsules
Placebo for IcalcaprantDRUGOral Capsules
CVL-354DRUGOral solution/capsule
[11C]-LY2795050DRUGIV injection
[11C]-carfentanilDRUGIV injection
ABBV-1354DRUGOral solution
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersNo
Study Sites33

Inclusion Criteria: * Participants with a diagnosis of bipolar I or II according to the DSM-5-TR without psychotic features, confirmed by the MINI 7.0.2, and currently experiencing an MDE beginning at least 4 weeks prior to consent and not exceeding 12 months prior to Screening. * Body Mass Index (...

Countries:United States
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Recent Changes (Last 90 Days)

LOWAug 14, 2026NCT06696755lastUpdatePostDate: changed
LOWAug 14, 2026NCT06696755lastUpdatePostDate: changed

Frequently asked questions about CVL-354

What is CVL-354?

CVL-354 is an investigational small molecule being developed by AbbVie Inc. for opioid use disorder. It is a Phase 1 candidate that has been studied in a positron emission tomography trial to evaluate target occupancy at kappa and mu opioid receptors in the brain following oral dosing.

What is CVL-354 used for?

CVL-354 is being developed for the treatment of opioid use disorder. It is an investigational therapy and has not been approved for any indication. The clinical program to date has focused on evaluating its activity at opioid receptors in the brain.

What does CVL-354 target?

CVL-354 targets the kappa opioid receptor, or KOR, a receptor involved in brain signaling. Its Phase 1 PET trial also evaluated occupancy at mu opioid receptors. The study measured target occupancy at both kappa and mu opioid receptors following oral dosing.

Who is developing CVL-354?

CVL-354 is being developed by AbbVie Inc., which trades on the New York Stock Exchange under the ticker ABBV. AbbVie is the sponsor of the clinical program for the drug in opioid use disorder.

What phase is CVL-354 in?

CVL-354 is in Phase 1 clinical development. It is an investigational drug and has not been approved by the FDA. The completed Phase 1 trial enrolled 19 participants and evaluated target occupancy at kappa and mu opioid receptors.

What clinical trials is CVL-354 in?

CVL-354 has been studied in one completed Phase 1 trial, NCT05547542, titled a positron emission tomography trial to evaluate target occupancy of CVL-354 at kappa and mu opioid receptors in the brain following oral dosing. The trial enrolled 19 participants and was conducted in opioid use disorder.