Skip to content

A Single and Multiple Ascending Dose Trial of CVL-354 in Healthy Participants

A Phase 1, Double-blind (Investigator and Participant), First-in-Human Trial to Evaluate the Safety, Tolerability, and Pharmacokinetics of Single and Multiple Ascending Doses of CVL-354 in Healthy Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05138653
Enrollment
73
Registered
2021-12-01
Start date
2021-10-18
Completion date
2023-01-23
Last updated
2024-11-26

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

Conditions

Healthy Participants

Keywords

Healthy Volunteer, CVL-354

Brief summary

This is a 2-part, double-blind, randomized, placebo-controlled, first-in-human trial evaluating a single ascending dose (4-way crossover, Part A) and multiple ascending doses (Part B) of CVL-354.

Interventions

Oral solution/suspension

DRUGPlacebo

Placebo matched to CVL-354

Sponsors

National Institute on Drug Abuse (NIDA)
CollaboratorNIH
Cerevel Therapeutics, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

1. Women of nonchildbearing potential and men 18 to 55 years, inclusive. 2. Healthy as determined by medical evaluation, including medical and psychiatric history, physical and neurological examinations, Electrocardiogram (ECG), vital sign measurements, and laboratory test results, as evaluated by the investigator. 3. Body mass index of 18.5 to 30.0 Kilograms per square meter (kg/m\^2), inclusive, and total body weight \>50 Kilogram (kg) \[110 Pound (lb)\] at Screening. 4. A male participant with a pregnant or a nonpregnant partner of childbearing potential must agree to use contraception during the trial and 14 days following the last dose of study drug. 5. Capable of giving signed informed consent 6. Ability, in the opinion of the investigator, to understand the nature of the trial and comply with protocol requirements.

Exclusion criteria

1. Current or past history of significant cardiovascular, pulmonary, gastrointestinal, renal, hepatic, metabolic, genitourinary, endocrine, hematological, immunological, or 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. 2. Serious risk of suicide in the opinion of the Investigator 3. History of substance or alcohol-use disorder (excluding nicotine or caffeine) within 12 months prior to signing the informed consent form (ICF). 4. Any condition that could possibly affect drug absorption 5. Receipt of severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) vaccination or booster as follows: * messenger ribonucleic acid (mRNA): within 14 days prior to dosing * Non-mRNA: within 28 days prior to dosing In addition, participants who plan to receive SARS-CoV2 vaccination or booster while participating in the trial or for at least 14 days after the last dose of investigational medicinal product (IMP) will be excluded. 6. Have recently been diagnosed with symptomatic corona virus disease-2019 (COVID-19) or test positive for COVID-19 within 30 days prior to signing the ICF. 7. Use of prohibited medication prior to randomization or likely to require prohibited concomitant therapy (eg, prescription and over-the-counter medications, herbal medications, vitamins, and supplements) during the trial 8. Either of the following: * History of human immunodeficiency viruses (HIV), hepatitis B, or hepatitis C infection * Positive result for HIV antibody, hepatitis B surface antigen, hepatitis B core antibody, or hepatitis C antibody 9. Positive drug screen (including nicotine) or a positive test for alcohol 10. Abnormal clinical laboratory test results or vital measurements at Screening and Check-in 11. Estimated glomerular filtration rate at Screening \<90 millilitre/minute/1.73m\^2 (mL/min/1.73 m\^2), as calculated using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation 12. Abnormal 12-lead ECG at Screening or initial Check-In (Day -1). 13. Known allergy or hypersensitivity to the IMP, closely related compounds, or any of their specified ingredients. 14. Current enrollment or past participation within 30 days or 5 half-lives (whichever is longer) prior to signing the ICF in any other clinical trial involving an IMP. 15. Any other abnormal safety findings unless, based on the investigator's judgment, the findings are not medically significant and would not impact the safety of the participant or the interpretation of the trial results.

Design outcomes

Primary

MeasureTime frameDescription
Part A: Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)From the first dose of study drug up to end of follow-up period (Up to 72 days)An adverse event (AE) was any untoward medical occurrence in a clinical trial participant, temporally associated with the use of trial treatment, whether or not considered related to the trial treatment. A serious adverse event (SAE) was AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial/prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. Adverse event which was reported to have started on Day 1 with no associated onset time were defined as TEAEs. TEAEs included both serious and non-serious TEAEs.
Part A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) ParametersFrom the first dose of study drug up to end of treatment (Up to 72 days)ECG parameters were assessed using continuous ECG recordings and standard 12-lead ECGs. The parameters included heart rhythm, heart rate, QRS intervals, QT intervals, RR intervals, PR intervals, corrected QT (QTc) intervals, corrected QT with Bazett formula (QTcB), and corrected QT with Fredericia (QTcF) parameters measurement. Clinical significance of changes in ECG parameters was based on investigator's interpretation. Number of participants with clinically significant changes in ECG were reported.
Part A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Vital Sign MeasurementsFrom the first dose of study drug up to end of treatment (Up to 72 days)Vital signs include systolic and diastolic blood pressures, heart rate, respiratory rate, and body temperature. Clinical significance of changes in vital signs measurements was based on investigator's interpretation. Number of participants with clinically significant changes in vital signs were reported.
Part A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Clinical Laboratory ParametersFrom the first dose of study drug up to end of treatment (Up to 72 days)Laboratory parameters included blood chemistry, hematology, and urinalysis. Clinical significance of changes in laboratory parameters was based on investigator's interpretation. Number of participants with clinically significant changes in laboratory parameters (included hematology, blood chemistry, and urinalysis) were reported.
Part A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Physical and Neurological ExaminationsFrom the first dose of study drug up to end of treatment (Up to 72 days)The full physical examination included a review of the following body systems: head, ears, eyes, nose, mouth, skin, heart and lung examinations, lymph nodes, gastrointestinal, and musculoskeletal systems. The full neurological examination included an assessment of the participant's mental status (level of consciousness, orientation, speech, memory, etc), cranial nerves, motor (muscle appearance, tone, strength and reflexes), sensation (including Romberg sign), coordination, and gait. Clinical significance in changes of physical and neurological examination results were based on investigator's interpretation. Number of participants with clinically significant changes in physical and neurological examinations were reported.
Part A: Cohorts 1 and 2: Number of Participants With Changes in Suicidal Ideation or Suicidal Behavior Assessed Using the Columbia Suicide-Severity Rating Scale (C-SSRS)From the first dose of study drug up to end of treatment (Up to 72 days)The C-SSRS is comprised of 10 categories with binary responses. The 10 categories include: Category 1 - Wish to be Dead; Category 2 - Non-specific Active Suicidal Thoughts; Category 3 - Active Suicidal Ideation with Any Methods (Not Plan) without Intent to Act; Category 4 - Active Suicidal Ideation with Some Intent to Act, without Specific Plan; Category 5 - Active Suicidal Ideation with Specific Plan and Intent; Category 6 - Preparatory Acts or Behavior; Category 7 - Aborted Attempt; Category 8 - Interrupted Attempt; Category 9 - Actual Attempt (non-fatal); Category 10 - Completed Suicide. Categories 1-5 represent Suicidal Ideation and categories 6-10 represent Suicidal Behavior. Each category is scored as 1 if there is a positive response in the category and a 0 if there are no positive responses in the category.
Part A: Cohort 3: Number of Participants With TEAEsFrom the first dose of study drug up to end of follow up period (Up to 22 days)An AE was any untoward medical occurrence in a clinical trial participant, temporally associated with the use of trial treatment, whether or not considered related to the trial treatment. A SAE was AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial/prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. Adverse event which was reported to have started on Day 1 with no associated onset time were defined as TEAEs. TEAEs included both serious and non-serious TEAEs.
Part A: Cohorts 3: Number of Participants With Clinically Significant Changes in ECG ParametersFrom the first dose of study drug up to end of treatment (Up to 22 days)ECG parameters were assessed using continuous ECG recordings and standard 12-lead ECGs. The parameters included heart rhythm, heart rate, QRS intervals, QT intervals, RR intervals, PR intervals, corrected QT (QTc) intervals, corrected QT with Bazett formula (QTcB), and corrected QT with Fredericia (QTcF) parameters measurement. Clinical significance of changes in ECG parameters was based on investigator's interpretation. Number of participants with clinically significant changes in ECG were reported.
Part A: Cohorts 3: Number of Participants With Clinically Significant Changes in Vital Sign MeasurementsFrom the first dose of study drug up to end of treatment (Up to 22 days)Vital signs include systolic and diastolic blood pressures, heart rate, respiratory rate, and body temperature. Clinical significance of changes in vital signs measurements was based on investigator's interpretation. Number of participants with clinically significant changes in vital signs were reported.
Part A: Cohorts 3: Number of Participants With Clinically Significant Changes in Clinical Laboratory ParametersFrom the first dose of study drug up to end of treatment (Up to 22 days)Laboratory parameters included blood chemistry, hematology, and urinalysis. Clinical significance of changes in laboratory parameters was based on investigator's interpretation. Number of participants with clinically significant changes in laboratory parameters (included hematology, blood chemistry, and urinalysis) were reported.
Part A: Cohort 3: Number of Participants With Clinically Significant Changes in Physical and Neurological ExaminationsFrom the first dose of study drug up to end of treatment (Up to 22 days)The full physical examination included a review of the following body systems: head, ears, eyes, nose, mouth, skin, heart and lung examinations, lymph nodes, gastrointestinal, and musculoskeletal systems. The full neurological examination included an assessment of the participant's mental status (level of consciousness, orientation, speech, memory, etc), cranial nerves, motor (muscle appearance, tone, strength and reflexes), sensation (including Romberg sign), coordination, and gait. Clinical significance in changes of physical and neurological examination results were based on investigator's interpretation. Number of participants with clinically significant changes in physical and neurological examinations were reported.
Part A: Cohort 3: Number of Participants With Changes in C-SSRSFrom the first dose of study drug up to end of treatment (Up to 22 days)The C-SSRS is comprised of 10 categories with binary responses. The 10 categories include: Category 1 - Wish to be Dead; Category 2 - Non-specific Active Suicidal Thoughts; Category 3 - Active Suicidal Ideation with Any Methods (Not Plan) without Intent to Act; Category 4 - Active Suicidal Ideation with Some Intent to Act, without Specific Plan; Category 5 - Active Suicidal Ideation with Specific Plan and Intent; Category 6 - Preparatory Acts or Behavior; Category 7 - Aborted Attempt; Category 8 - Interrupted Attempt; Category 9 - Actual Attempt (non-fatal); Category 10 - Completed Suicide. Categories 1-5 represent Suicidal Ideation and categories 6-10 represent Suicidal Behavior. Each category is scored as 1 if there is a positive response in the category and a 0 if there are no positive responses in the category.
Part B: Number of Participants With TEAEsFrom the first dose of study drug up to end of follow up period (Up to 31 days)An AE was any untoward medical occurrence in a clinical trial participant, temporally associated with the use of trial treatment, whether or not considered related to the trial treatment. A SAE was AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial/prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. Adverse event which was reported to have started on Day 1 with no associated onset time were defined as TEAEs. TEAEs included both serious and non-serious TEAEs.
Part B: Number of Participants With Clinically Significant Changes in ECG ParametersFrom the first dose of study drug up to end of treatment (Up to 31 days)ECG parameters were assessed using continuous ECG recordings and standard 12-lead ECGs. The parameters included heart rhythm, heart rate, QRS intervals, QT intervals, RR intervals, PR intervals, corrected QT (QTc) intervals, corrected QT with Bazett formula (QTcB), and corrected QT with Fredericia (QTcF) parameters measurement. Clinical significance of changes in ECG parameters was based on investigator's interpretation. Number of participants with clinically significant changes in ECG were reported.
Part B: Number of Participants With Clinically Significant Changes in Vital Sign MeasurementsFrom the first dose of study drug up to end of treatment (Up to 31 days)Vital signs include systolic and diastolic blood pressures, heart rate, respiratory rate, and body temperature. Clinical significance of changes in vital signs measurements was based on investigator's interpretation. Number of participants with clinically significant changes in vital signs were reported.
Part B: Number of Participants With Clinically Significant Changes in Clinical Laboratory ParametersFrom the first dose of study drug up to end of treatment (Up to 31 days)Laboratory parameters included blood chemistry, hematology, and urinalysis. Clinical significance of changes in laboratory parameters was based on investigator's interpretation. Number of participants with clinically significant changes in laboratory parameters (included hematology, blood chemistry, and urinalysis) were reported.
Part B: Number of Participants With Clinically Significant Changes in Physical and Neurological ExaminationsFrom the first dose of study drug up to end of treatment (Up to 31 days)The full physical examination included a review of the following body systems: head, ears, eyes, nose, mouth, skin, heart and lung examinations, lymph nodes, gastrointestinal, and musculoskeletal systems. The full neurological examination included an assessment of the participant's mental status (level of consciousness, orientation, speech, memory, etc), cranial nerves, motor (muscle appearance, tone, strength and reflexes), sensation (including Romberg sign), coordination, and gait. Clinical significance in changes of physical and neurological examination results were based on investigator's interpretation. Number of participants with clinically significant changes in physical and neurological examinations were reported.
Part B: Number of Participants With Changes in C-SSRSFrom the first dose of study drug up to end of treatment (Up to 31 days)The C-SSRS is comprised of 10 categories with binary responses. The 10 categories include: Category 1 - Wish to be Dead; Category 2 - Non-specific Active Suicidal Thoughts; Category 3 - Active Suicidal Ideation with Any Methods (Not Plan) without Intent to Act; Category 4 - Active Suicidal Ideation with Some Intent to Act, without Specific Plan; Category 5 - Active Suicidal Ideation with Specific Plan and Intent; Category 6 - Preparatory Acts or Behavior; Category 7 - Aborted Attempt; Category 8 - Interrupted Attempt; Category 9 - Actual Attempt (non-fatal); Category 10 - Completed Suicide. Categories 1-5 represent Suicidal Ideation and categories 6-10 represent Suicidal Behavior Each category is scored as 1 if there is a positive response in the category and a 0 if there are no positive responses in the category.

Countries

United States

Participant flow

Recruitment details

73 participants took part in the study at 1 investigative site in the United States of America from 18 October 2021 to 23 January 2023.

Pre-assignment details

Healthy participants were enrolled in single ascending dose (Part A: Cohorts 1 & 2), food effect (Part A: Cohorts 3) & multiple ascending dose (Part B: Cohorts 1-5) of the study. The data for the 4 sequences in Cohorts 1 and 2 was collected and presented in a pooled manner in the participant flow.

Participants by arm

ArmCount
Part A: Cohort 1: Sequence 1
Participants were randomized to sequence 1 to receive placebo on Day 1 of Period 1 followed by CVL-354 1.5 mg on Day 1 of Period 2, followed by CVL-354 5 mg on Day 1 of Period 3 & followed by CVL-354 15 mg on Day 1 of Period 4. Each dosing period was separated by a washout period of at least 5 days.
2
Part A: Cohort 1: Sequence 2
Participants were randomized to sequence 2 to receive CVL-354 0.5 mg on Day 1 of Period 1 followed by placebo on Day 1 of Period 2, followed by CVL-354 5 mg on Day 1 of Period 3 & followed by CVL-354 15 mg on Day 1 of Period 4. Each dosing period was separated by a washout period of at least 5 days.
4
Part A: Cohort 1: Sequence 3
Participants were randomized to sequence 3 to receive CVL-354 0.5 mg on Day 1 of Period 1 followed by CVL-354 1.5 mg on Day 1 of Period 2, followed by placebo on Day 1 of Period 3 & followed by CVL-354 15 mg on Day 1 of Period 4. Each dosing period was separated by a washout period of at least 5 days.
2
Part A: Cohort 1: Sequence 4
Participants were randomized to sequence 4 to receive CVL-354 0.5 mg on Day 1 of Period 1 followed by CVL-354 1.5 mg on Day 1 of Period 2, followed by CVL-354 5 mg on Day 1 of Period 3 & followed by placebo on Day 1 of Period 4. Each dosing period was separated by a washout period of at least 5 days.
2
Part A: Cohort 2: Sequence 1
Participants were randomized to sequence 1 to receive placebo on Day 1 of Period 1 followed by CVL-354 90 mg on Day 1 of Period 2, followed by CVL-354 150 mg on Day 1 of Period 3 & followed by CVL-354 200 mg on Day 1 of Period 4. Each dosing period was separated by a washout period of at least 5 days.
3
Part A: Cohort 2: Sequence 2
Participants were randomized to sequence 2 to receive CVL-354 45 mg on Day 1 of Period 1 followed by placebo on Day 1 of Period 2, followed by CVL-354 150 mg on Day 1 of Period 3 & followed by CVL-354 200 mg on Day 1 of Period 4. Each dosing period was separated by a washout period of at least 5 days.
2
Part A: Cohort 2: Sequence 3
Participants were randomized to sequence 3 to receive CVL-354 45 mg on Day 1 of Period 1 followed by CVL-354 on 90 mg Day 1 of Period 2, followed by placebo on Day 1 of Period 3 & followed by CVL-354 200 mg on Day 1 of Period 4. Each dosing period was separated by a washout period of at least 5 days.
3
Part A: Cohort 2: Sequence 4
Participants were randomized to sequence 4 to receive CVL- 354 45 mg on Day 1 of Period 1 followed by CVL-354 90 mg on Day 1 of Period 2, followed by CVL-354 150 mg on Day 1 of Period 3 & placebo on Day 1 of Period 4. Each dosing period was separated by a washout period of at least 5 days.
2
Part A: Cohort 3: Fed/Fasted Sequence
Participants first received a single oral dose of CVL-354 50 mg, under fed state on Day 1 of Period 1 followed by a single oral dose of CVL-354 50 mg under fasted state on Day 1 of Period 2, with a washout period of 2 days between both periods.
4
Part A: Cohort 3: Fasted/Fed Sequence
Participants first received a single oral dose of CVL-354 50 mg, under fasted state on Day 1 of Period 1 followed by a single oral dose of CVL-354 50 mg under fed state on Day 1 of Period 2, with a washout period of 2 days between both periods.
3
Part B: Pooled Placebo
Participants received oral dose of placebo matching CVL-354, QD from Day 1 up to Day 14 of Cohort 1 to 5 in Part B.
9
Part B: Cohort 1: CVL-354 10 mg
Participants received oral dose of CVL-354 10 mg, QD from Day 1 up to Day 14 in Cohort 1.
8
Part B: Cohort 2: CVL-354 25 mg
Participants received oral dose of CVL-354 25 mg, QD from Day 1 up to Day 14 in Cohort 2.
6
Part B: Cohort 3: CVL-354 50 mg
Participants received oral dose of CVL-354 50 mg, QD from Day 1 up to Day 14 in Cohort 3.
7
Part B: Cohort 4: CVL-354 80 mg
Participants received oral dose of CVL-354 80 mg, QD from Day 1 up to Day 14 in Cohort 4.
8
Part B: Cohort 5: CVL-354 85 mg
Participants received oral dose of CVL-354 85 mg, QD from Day 1 up to Day 14 in Cohort 5.
8
Total73

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010FG011FG012FG013FG014FG015
Multiple Ascending Dose (Up to 12 Weeks)Adverse Event0000000000101010
Multiple Ascending Dose (Up to 12 Weeks)Disciplinary Reason0000000000000100
Multiple Ascending Dose (Up to 12 Weeks)Withdrawal of Consent0000000000000001
Single Ascending Dose (Up to 13 Weeks)Adverse Event1000000000000000
Single Ascending Dose (Up to 13 Weeks)Investigator's Discretion0100000010000000
Single Ascending Dose (Up to 13 Weeks)Other0000001000000000
Single Ascending Dose (Up to 13 Weeks)Withdrawal of Consent0100100000000000

Baseline characteristics

CharacteristicTotalPart A: Cohort 1: Sequence 2Part A: Cohort 1: Sequence 3Part A: Cohort 1: Sequence 4Part A: Cohort 1: Sequence 1Part A: Cohort 2: Sequence 1Part A: Cohort 2: Sequence 2Part A: Cohort 2: Sequence 3Part A: Cohort 2: Sequence 4Part A: Cohort 3: Fed/Fasted SequencePart A: Cohort 3: Fasted/Fed SequencePart B: Pooled PlaceboPart B: Cohort 1: CVL-354 10 mgPart B: Cohort 2: CVL-354 25 mgPart B: Cohort 3: CVL-354 50 mgPart B: Cohort 4: CVL-354 80 mgPart B: Cohort 5: CVL-354 85 mg
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
73 Participants4 Participants2 Participants2 Participants2 Participants3 Participants2 Participants3 Participants2 Participants4 Participants3 Participants9 Participants8 Participants6 Participants7 Participants8 Participants8 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
19 Participants0 Participants1 Participants0 Participants0 Participants3 Participants0 Participants1 Participants2 Participants1 Participants1 Participants1 Participants3 Participants0 Participants3 Participants2 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
54 Participants4 Participants1 Participants2 Participants2 Participants0 Participants2 Participants2 Participants0 Participants3 Participants2 Participants8 Participants5 Participants6 Participants4 Participants6 Participants7 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
4 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
38 Participants2 Participants1 Participants2 Participants1 Participants0 Participants1 Participants1 Participants1 Participants2 Participants0 Participants7 Participants4 Participants5 Participants2 Participants5 Participants4 Participants
Race (NIH/OMB)
More than one race
2 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
28 Participants1 Participants1 Participants0 Participants0 Participants3 Participants1 Participants2 Participants1 Participants2 Participants2 Participants2 Participants3 Participants1 Participants4 Participants3 Participants2 Participants
Sex: Female, Male
Female
6 Participants1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants1 Participants1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Sex: Female, Male
Male
67 Participants3 Participants2 Participants2 Participants2 Participants2 Participants2 Participants3 Participants2 Participants3 Participants2 Participants8 Participants8 Participants6 Participants7 Participants8 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
EG010
affected / at risk
EG011
affected / at risk
EG012
affected / at risk
EG013
affected / at risk
EG014
affected / at risk
EG015
affected / at risk
EG016
affected / at risk
deaths
Total, all-cause mortality
0 / 160 / 60 / 60 / 60 / 50 / 50 / 40 / 60 / 60 / 70 / 70 / 90 / 80 / 60 / 70 / 80 / 8
other
Total, other adverse events
0 / 160 / 60 / 61 / 60 / 51 / 50 / 42 / 62 / 60 / 72 / 72 / 90 / 81 / 62 / 72 / 83 / 8
serious
Total, serious adverse events
0 / 160 / 60 / 60 / 60 / 50 / 50 / 40 / 60 / 60 / 70 / 70 / 90 / 80 / 60 / 70 / 80 / 8

Outcome results

Primary

Part A: Cohort 3: Number of Participants With Changes in C-SSRS

The C-SSRS is comprised of 10 categories with binary responses. The 10 categories include: Category 1 - Wish to be Dead; Category 2 - Non-specific Active Suicidal Thoughts; Category 3 - Active Suicidal Ideation with Any Methods (Not Plan) without Intent to Act; Category 4 - Active Suicidal Ideation with Some Intent to Act, without Specific Plan; Category 5 - Active Suicidal Ideation with Specific Plan and Intent; Category 6 - Preparatory Acts or Behavior; Category 7 - Aborted Attempt; Category 8 - Interrupted Attempt; Category 9 - Actual Attempt (non-fatal); Category 10 - Completed Suicide. Categories 1-5 represent Suicidal Ideation and categories 6-10 represent Suicidal Behavior. Each category is scored as 1 if there is a positive response in the category and a 0 if there are no positive responses in the category.

Time frame: From the first dose of study drug up to end of treatment (Up to 22 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart A: Cohort 3: Number of Participants With Changes in C-SSRS0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart A: Cohort 3: Number of Participants With Changes in C-SSRS0 Participants
Primary

Part A: Cohort 3: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations

The full physical examination included a review of the following body systems: head, ears, eyes, nose, mouth, skin, heart and lung examinations, lymph nodes, gastrointestinal, and musculoskeletal systems. The full neurological examination included an assessment of the participant's mental status (level of consciousness, orientation, speech, memory, etc), cranial nerves, motor (muscle appearance, tone, strength and reflexes), sensation (including Romberg sign), coordination, and gait. Clinical significance in changes of physical and neurological examination results were based on investigator's interpretation. Number of participants with clinically significant changes in physical and neurological examinations were reported.

Time frame: From the first dose of study drug up to end of treatment (Up to 22 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart A: Cohort 3: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart A: Cohort 3: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Primary

Part A: Cohort 3: Number of Participants With TEAEs

An AE was any untoward medical occurrence in a clinical trial participant, temporally associated with the use of trial treatment, whether or not considered related to the trial treatment. A SAE was AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial/prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. Adverse event which was reported to have started on Day 1 with no associated onset time were defined as TEAEs. TEAEs included both serious and non-serious TEAEs.

Time frame: From the first dose of study drug up to end of follow up period (Up to 22 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart A: Cohort 3: Number of Participants With TEAEs0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart A: Cohort 3: Number of Participants With TEAEs2 Participants
Primary

Part A: Cohorts 1 and 2: Number of Participants With Changes in Suicidal Ideation or Suicidal Behavior Assessed Using the Columbia Suicide-Severity Rating Scale (C-SSRS)

The C-SSRS is comprised of 10 categories with binary responses. The 10 categories include: Category 1 - Wish to be Dead; Category 2 - Non-specific Active Suicidal Thoughts; Category 3 - Active Suicidal Ideation with Any Methods (Not Plan) without Intent to Act; Category 4 - Active Suicidal Ideation with Some Intent to Act, without Specific Plan; Category 5 - Active Suicidal Ideation with Specific Plan and Intent; Category 6 - Preparatory Acts or Behavior; Category 7 - Aborted Attempt; Category 8 - Interrupted Attempt; Category 9 - Actual Attempt (non-fatal); Category 10 - Completed Suicide. Categories 1-5 represent Suicidal Ideation and categories 6-10 represent Suicidal Behavior. Each category is scored as 1 if there is a positive response in the category and a 0 if there are no positive responses in the category.

Time frame: From the first dose of study drug up to end of treatment (Up to 72 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart A: Cohorts 1 and 2: Number of Participants With Changes in Suicidal Ideation or Suicidal Behavior Assessed Using the Columbia Suicide-Severity Rating Scale (C-SSRS)0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart A: Cohorts 1 and 2: Number of Participants With Changes in Suicidal Ideation or Suicidal Behavior Assessed Using the Columbia Suicide-Severity Rating Scale (C-SSRS)0 Participants
Part A: Cohort 1: CVL-354 1.5 mgPart A: Cohorts 1 and 2: Number of Participants With Changes in Suicidal Ideation or Suicidal Behavior Assessed Using the Columbia Suicide-Severity Rating Scale (C-SSRS)0 Participants
Part A: Cohort 1: CVL-354 5 mgPart A: Cohorts 1 and 2: Number of Participants With Changes in Suicidal Ideation or Suicidal Behavior Assessed Using the Columbia Suicide-Severity Rating Scale (C-SSRS)0 Participants
Part A: Cohort 1: CVL-354 15 mgPart A: Cohorts 1 and 2: Number of Participants With Changes in Suicidal Ideation or Suicidal Behavior Assessed Using the Columbia Suicide-Severity Rating Scale (C-SSRS)0 Participants
Part A: Cohort 2: CVL-354 45 mgPart A: Cohorts 1 and 2: Number of Participants With Changes in Suicidal Ideation or Suicidal Behavior Assessed Using the Columbia Suicide-Severity Rating Scale (C-SSRS)0 Participants
Part A: Cohort 2: CVL-354 90 mgPart A: Cohorts 1 and 2: Number of Participants With Changes in Suicidal Ideation or Suicidal Behavior Assessed Using the Columbia Suicide-Severity Rating Scale (C-SSRS)0 Participants
Part A: Cohort 2: CVL-354 150 mgPart A: Cohorts 1 and 2: Number of Participants With Changes in Suicidal Ideation or Suicidal Behavior Assessed Using the Columbia Suicide-Severity Rating Scale (C-SSRS)0 Participants
Part A: Cohort 2: CVL-354 200 mgPart A: Cohorts 1 and 2: Number of Participants With Changes in Suicidal Ideation or Suicidal Behavior Assessed Using the Columbia Suicide-Severity Rating Scale (C-SSRS)0 Participants
Primary

Part A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters

Laboratory parameters included blood chemistry, hematology, and urinalysis. Clinical significance of changes in laboratory parameters was based on investigator's interpretation. Number of participants with clinically significant changes in laboratory parameters (included hematology, blood chemistry, and urinalysis) were reported.

Time frame: From the first dose of study drug up to end of treatment (Up to 72 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 1: CVL-354 1.5 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 1: CVL-354 5 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 1: CVL-354 15 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 2: CVL-354 45 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 2: CVL-354 90 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 2: CVL-354 150 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 2: CVL-354 200 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Primary

Part A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Parameters

ECG parameters were assessed using continuous ECG recordings and standard 12-lead ECGs. The parameters included heart rhythm, heart rate, QRS intervals, QT intervals, RR intervals, PR intervals, corrected QT (QTc) intervals, corrected QT with Bazett formula (QTcB), and corrected QT with Fredericia (QTcF) parameters measurement. Clinical significance of changes in ECG parameters was based on investigator's interpretation. Number of participants with clinically significant changes in ECG were reported.

Time frame: From the first dose of study drug up to end of treatment (Up to 72 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Parameters0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Parameters0 Participants
Part A: Cohort 1: CVL-354 1.5 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Parameters0 Participants
Part A: Cohort 1: CVL-354 5 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Parameters0 Participants
Part A: Cohort 1: CVL-354 15 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Parameters0 Participants
Part A: Cohort 2: CVL-354 45 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Parameters0 Participants
Part A: Cohort 2: CVL-354 90 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Parameters0 Participants
Part A: Cohort 2: CVL-354 150 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Parameters0 Participants
Part A: Cohort 2: CVL-354 200 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Parameters0 Participants
Primary

Part A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations

The full physical examination included a review of the following body systems: head, ears, eyes, nose, mouth, skin, heart and lung examinations, lymph nodes, gastrointestinal, and musculoskeletal systems. The full neurological examination included an assessment of the participant's mental status (level of consciousness, orientation, speech, memory, etc), cranial nerves, motor (muscle appearance, tone, strength and reflexes), sensation (including Romberg sign), coordination, and gait. Clinical significance in changes of physical and neurological examination results were based on investigator's interpretation. Number of participants with clinically significant changes in physical and neurological examinations were reported.

Time frame: From the first dose of study drug up to end of treatment (Up to 72 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 1: CVL-354 1.5 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 1: CVL-354 5 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 1: CVL-354 15 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 2: CVL-354 45 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 2: CVL-354 90 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 2: CVL-354 150 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 2: CVL-354 200 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Primary

Part A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Vital Sign Measurements

Vital signs include systolic and diastolic blood pressures, heart rate, respiratory rate, and body temperature. Clinical significance of changes in vital signs measurements was based on investigator's interpretation. Number of participants with clinically significant changes in vital signs were reported.

Time frame: From the first dose of study drug up to end of treatment (Up to 72 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 1: CVL-354 1.5 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 1: CVL-354 5 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 1: CVL-354 15 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 2: CVL-354 45 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 2: CVL-354 90 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 2: CVL-354 150 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 2: CVL-354 200 mgPart A: Cohorts 1 and 2: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Primary

Part A: Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)

An adverse event (AE) was any untoward medical occurrence in a clinical trial participant, temporally associated with the use of trial treatment, whether or not considered related to the trial treatment. A serious adverse event (SAE) was AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial/prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. Adverse event which was reported to have started on Day 1 with no associated onset time were defined as TEAEs. TEAEs included both serious and non-serious TEAEs.

Time frame: From the first dose of study drug up to end of follow-up period (Up to 72 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart A: Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart A: Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)0 Participants
Part A: Cohort 1: CVL-354 1.5 mgPart A: Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)0 Participants
Part A: Cohort 1: CVL-354 5 mgPart A: Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)1 Participants
Part A: Cohort 1: CVL-354 15 mgPart A: Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)0 Participants
Part A: Cohort 2: CVL-354 45 mgPart A: Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)1 Participants
Part A: Cohort 2: CVL-354 90 mgPart A: Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)0 Participants
Part A: Cohort 2: CVL-354 150 mgPart A: Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)2 Participants
Part A: Cohort 2: CVL-354 200 mgPart A: Cohorts 1 and 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)2 Participants
Primary

Part A: Cohorts 3: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters

Laboratory parameters included blood chemistry, hematology, and urinalysis. Clinical significance of changes in laboratory parameters was based on investigator's interpretation. Number of participants with clinically significant changes in laboratory parameters (included hematology, blood chemistry, and urinalysis) were reported.

Time frame: From the first dose of study drug up to end of treatment (Up to 22 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart A: Cohorts 3: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart A: Cohorts 3: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Primary

Part A: Cohorts 3: Number of Participants With Clinically Significant Changes in ECG Parameters

ECG parameters were assessed using continuous ECG recordings and standard 12-lead ECGs. The parameters included heart rhythm, heart rate, QRS intervals, QT intervals, RR intervals, PR intervals, corrected QT (QTc) intervals, corrected QT with Bazett formula (QTcB), and corrected QT with Fredericia (QTcF) parameters measurement. Clinical significance of changes in ECG parameters was based on investigator's interpretation. Number of participants with clinically significant changes in ECG were reported.

Time frame: From the first dose of study drug up to end of treatment (Up to 22 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart A: Cohorts 3: Number of Participants With Clinically Significant Changes in ECG Parameters0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart A: Cohorts 3: Number of Participants With Clinically Significant Changes in ECG Parameters0 Participants
Primary

Part A: Cohorts 3: Number of Participants With Clinically Significant Changes in Vital Sign Measurements

Vital signs include systolic and diastolic blood pressures, heart rate, respiratory rate, and body temperature. Clinical significance of changes in vital signs measurements was based on investigator's interpretation. Number of participants with clinically significant changes in vital signs were reported.

Time frame: From the first dose of study drug up to end of treatment (Up to 22 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart A: Cohorts 3: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart A: Cohorts 3: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Primary

Part B: Number of Participants With Changes in C-SSRS

The C-SSRS is comprised of 10 categories with binary responses. The 10 categories include: Category 1 - Wish to be Dead; Category 2 - Non-specific Active Suicidal Thoughts; Category 3 - Active Suicidal Ideation with Any Methods (Not Plan) without Intent to Act; Category 4 - Active Suicidal Ideation with Some Intent to Act, without Specific Plan; Category 5 - Active Suicidal Ideation with Specific Plan and Intent; Category 6 - Preparatory Acts or Behavior; Category 7 - Aborted Attempt; Category 8 - Interrupted Attempt; Category 9 - Actual Attempt (non-fatal); Category 10 - Completed Suicide. Categories 1-5 represent Suicidal Ideation and categories 6-10 represent Suicidal Behavior Each category is scored as 1 if there is a positive response in the category and a 0 if there are no positive responses in the category.

Time frame: From the first dose of study drug up to end of treatment (Up to 31 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart B: Number of Participants With Changes in C-SSRS0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart B: Number of Participants With Changes in C-SSRS0 Participants
Part A: Cohort 1: CVL-354 1.5 mgPart B: Number of Participants With Changes in C-SSRS0 Participants
Part A: Cohort 1: CVL-354 5 mgPart B: Number of Participants With Changes in C-SSRS0 Participants
Part A: Cohort 1: CVL-354 15 mgPart B: Number of Participants With Changes in C-SSRS0 Participants
Part A: Cohort 2: CVL-354 45 mgPart B: Number of Participants With Changes in C-SSRS0 Participants
Primary

Part B: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters

Laboratory parameters included blood chemistry, hematology, and urinalysis. Clinical significance of changes in laboratory parameters was based on investigator's interpretation. Number of participants with clinically significant changes in laboratory parameters (included hematology, blood chemistry, and urinalysis) were reported.

Time frame: From the first dose of study drug up to end of treatment (Up to 31 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart B: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart B: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 1: CVL-354 1.5 mgPart B: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 1: CVL-354 5 mgPart B: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 1: CVL-354 15 mgPart B: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Part A: Cohort 2: CVL-354 45 mgPart B: Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters0 Participants
Primary

Part B: Number of Participants With Clinically Significant Changes in ECG Parameters

ECG parameters were assessed using continuous ECG recordings and standard 12-lead ECGs. The parameters included heart rhythm, heart rate, QRS intervals, QT intervals, RR intervals, PR intervals, corrected QT (QTc) intervals, corrected QT with Bazett formula (QTcB), and corrected QT with Fredericia (QTcF) parameters measurement. Clinical significance of changes in ECG parameters was based on investigator's interpretation. Number of participants with clinically significant changes in ECG were reported.

Time frame: From the first dose of study drug up to end of treatment (Up to 31 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart B: Number of Participants With Clinically Significant Changes in ECG Parameters0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart B: Number of Participants With Clinically Significant Changes in ECG Parameters0 Participants
Part A: Cohort 1: CVL-354 1.5 mgPart B: Number of Participants With Clinically Significant Changes in ECG Parameters0 Participants
Part A: Cohort 1: CVL-354 5 mgPart B: Number of Participants With Clinically Significant Changes in ECG Parameters0 Participants
Part A: Cohort 1: CVL-354 15 mgPart B: Number of Participants With Clinically Significant Changes in ECG Parameters0 Participants
Part A: Cohort 2: CVL-354 45 mgPart B: Number of Participants With Clinically Significant Changes in ECG Parameters0 Participants
Primary

Part B: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations

The full physical examination included a review of the following body systems: head, ears, eyes, nose, mouth, skin, heart and lung examinations, lymph nodes, gastrointestinal, and musculoskeletal systems. The full neurological examination included an assessment of the participant's mental status (level of consciousness, orientation, speech, memory, etc), cranial nerves, motor (muscle appearance, tone, strength and reflexes), sensation (including Romberg sign), coordination, and gait. Clinical significance in changes of physical and neurological examination results were based on investigator's interpretation. Number of participants with clinically significant changes in physical and neurological examinations were reported.

Time frame: From the first dose of study drug up to end of treatment (Up to 31 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart B: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart B: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 1: CVL-354 1.5 mgPart B: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 1: CVL-354 5 mgPart B: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 1: CVL-354 15 mgPart B: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Part A: Cohort 2: CVL-354 45 mgPart B: Number of Participants With Clinically Significant Changes in Physical and Neurological Examinations0 Participants
Primary

Part B: Number of Participants With Clinically Significant Changes in Vital Sign Measurements

Vital signs include systolic and diastolic blood pressures, heart rate, respiratory rate, and body temperature. Clinical significance of changes in vital signs measurements was based on investigator's interpretation. Number of participants with clinically significant changes in vital signs were reported.

Time frame: From the first dose of study drug up to end of treatment (Up to 31 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart B: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart B: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 1: CVL-354 1.5 mgPart B: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 1: CVL-354 5 mgPart B: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 1: CVL-354 15 mgPart B: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Part A: Cohort 2: CVL-354 45 mgPart B: Number of Participants With Clinically Significant Changes in Vital Sign Measurements0 Participants
Primary

Part B: Number of Participants With TEAEs

An AE was any untoward medical occurrence in a clinical trial participant, temporally associated with the use of trial treatment, whether or not considered related to the trial treatment. A SAE was AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial/prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. Adverse event which was reported to have started on Day 1 with no associated onset time were defined as TEAEs. TEAEs included both serious and non-serious TEAEs.

Time frame: From the first dose of study drug up to end of follow up period (Up to 31 days)

Population: Safety Analysis Set included all randomized participants who had received at least 1 dose of IMP.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: Cohort 1 and 2: Pooled PlaceboPart B: Number of Participants With TEAEs2 Participants
Part A: Cohort 1: CVL-354 0.5 mgPart B: Number of Participants With TEAEs0 Participants
Part A: Cohort 1: CVL-354 1.5 mgPart B: Number of Participants With TEAEs1 Participants
Part A: Cohort 1: CVL-354 5 mgPart B: Number of Participants With TEAEs2 Participants
Part A: Cohort 1: CVL-354 15 mgPart B: Number of Participants With TEAEs2 Participants
Part A: Cohort 2: CVL-354 45 mgPart B: Number of Participants With TEAEs3 Participants

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