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Effects of Vortioxetine (Lu AA21004) on the Concentrations of Selected Neurotransmitters in Healthy Male Adults

A Phase 1, Single-Center, Randomized, Single-Blind, Placebo-Controlled, Multiple-Dose Study to Assess the Effects of Oral Administration of Lu AA21004 20 mg on the Concentrations of Selected Neurotransmitters in Healthy Male Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01299805
Enrollment
17
Registered
2011-02-18
Start date
2011-03-31
Completion date
2011-07-31
Last updated
2013-12-13

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

Conditions

Healthy

Keywords

Drug Therapy, pharmacodynamic

Brief summary

The purpose of this study is to evaluate the pharmacodynamics (the drug's effect on the body), the pharmacokinetics (the body's handling of the drug), and the safety and tolerability of vortioxetine, once daily (QD) in healthy men.

Detailed description

This study will look at an investigational medicine called vortioxetine to see how the drug affects the body and how the body handles the drug. The study enrolled 17 patients. Participants were randomly assigned at a 2:1 ratio to one of the following two treatment groups-which remained undisclosed to both the participant and study doctor during the study (unless there was an urgent medical need): * Vortioxetine 20 mg * Placebo (dummy inactive pill) - this was a capsule that looked like the study drug but had no active ingredient. All participants were asked to take one capsule at the same time each day throughout the study. This single-center trial was conducted in the United States. The overall time to participate in this study was approximately 7 weeks. Participants made 2 visits to the clinic, including 18 days confinement to the clinic, and were contacted by telephone 1 day and 27 days after leaving confinement for a follow-up assessment.

Interventions

DRUGVortioxetine

Encapsulated tablet

DRUGPlacebo

Vortioxetine placebo-matching capsules.

Sponsors

Takeda
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Masking
SINGLE (Subject)

Eligibility

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

Inclusion criteria

* Weighs at least 50 kg and has a body mass index between 19.0 and 32.0 kg/m\^2, inclusive at Screening. * Males who are nonsterilized and sexually active with a female partner of childbearing potential must agrees to use adequate contraception from signing of informed consent throughout the duration of the study and for 6 weeks after last dose of study medication. The acceptable method of contraception is defined as one that has no higher than a 1% failure rate.

Exclusion criteria

* Received any investigational compound within 45 days prior to Check-in (Day -2). * Received Lu AA21004 in previous clinical study or as therapeutic agent. * History of or uncontrolled, clinically significant neurologic, cardiovascular, pulmonary, central nervous system, hepatic hematopoietic disease, renal metabolic, gastrointestinal, or endocrine disease, serious allergy, asthma, hypoxemia, hypertension, seizures, allergic skin rash or other abnormality, which may impact the ability of the participant to participate or potentially confound study results. * Participant has 1 or more of the following: * Any current psychiatric disorder as defined in the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition Text Revision (DSM-IV-TR). * Current or history of: manic or hypomanic episode, schizophrenia or any other psychotic disorder, including major depression with psychotic features, mental retardation, organic mental disorders, or mental disorders due to a general medical condition as defined in the DSM-IV-TR. * Presence or history of a clinically significant neurological disorder (including epilepsy). * Neurodegenerative disorder (Alzheimer disease, Parkinson disease, multiple sclerosis, Huntington disease, etc). * Any Axis II disorder. * Has a known hypersensitivity to any component of the formulation of Lu AA21004. * Has a positive urine drug result for drugs of abuse at Screening or Check-in (Day -2). * Has a history of drug abuse (defined as any illicit drug use) or a history of alcohol abuse (defined as regular consumption of 4 or more units per day) within 1 year prior to the Screening visit or is unwilling to agree to abstain from alcohol and drugs throughout the study. One unit is equivalent to a half-pint of beer or 1 measure of spirits or 1 glass of wine. * The participant intends to impregnate or donate sperm during the course of this study or for 6 weeks after last dose. * Has current or recent (within 6 months) gastrointestinal disease that would be expected to influence the absorption of drugs (e.g., a history of malabsorption, esophageal reflux, peptic ulcer disease, erosive esophagitis; frequent (more than once per week) occurrence of heartburn, or any intra-abdominal surgery (except laparoscopic cholecystectomy or uncomplicated appendectomy). * Has a history of cancer, other than basal cell or Stage 1 squamous cell carcinoma of the skin that has not been in remission for at least 5 years prior to Day 1. * Has a positive test result for hepatitis B surface antigen (HBsAg), hepatitis C antibody at Screening or a known history of human immunodeficiency virus infection. * Has used nicotine-containing products (including but not limited to cigarettes, pipes, cigars, chewing tobacco, nicotine patch or nicotine gum) within 28 days prior to Check-in (Day -2) or is unwilling to abstain from these products for the duration of the study. * Cotinine test is positive at Screening or Check-in (Day 2). * Has poor peripheral venous access. * Has donated or lost 450 mL or more of his blood volume (including plasmapheresis), or had a transfusion of any blood product within 30 days prior to Day 1. * Has a Screening or Check-in (Day -2) abnormal (clinically significant) electrocardiogram (ECG). Entry of any patient with an abnormal (not clinically significant) ECG must be approved, and documented by signature by the principal investigator. * Has abnormal Screening or Day -2 laboratory values that suggest a clinically significant underlying disease or with the following lab abnormalities: alanine aminotransferase and/or aspartate aminotransferase \>1.5 times the upper limit of normal. * Has had cerebrospinal fluid (CSF) collection performed within 30 days prior to Check-in (Day -2). * Has taken any selective serotonin reuptake inhibitor (SSRIs), selective norepinephrine reuptake inhibitors (SNRIs), or monoamine oxidase inhibitors, antipsychotics, tricyclic antidepressants, or mood stabilizers within the last year prior to Screening. * Has a known hypersensitivity to the anesthetic or its derivatives used during CSF collection, or any medication used to prepare the area of lumbar puncture. * Has significant vertebral deformities (scoliosis or kyphosis) which, in the opinion of the investigator, may interfere with lumbar puncture procedure. * Has a history of clinically significant back pain and/or injury. * Has local infection at the puncture site. * Has a history of significant bleeding or coagulation disorder and/or low platelet levels (\<130x10\^9/L) or increased international normalized ratio (INR) (\>1.3) at Screening. * Answers positive to any suicidal ideation and/or suicidal behavior questions during administration of the Columbia-Suicide Severity Rating Scale. * Has an orthostatic blood pressure drop of ≥20 mm Hg (based on the drop between supine and standing \[3 minutes\] systolic blood pressure) at Screening or Check-in (Day -2). * Has abnormal Screening or Day -2 vital signs: resting systolic blood pressure ≤90 or ≥140 mm Hg or a resting diastolic blood pressure ≤50 or ≥90 mm Hg in supine position; resting pulse or heart rate (as read on ECG) \<45 bpm or \>100 bpm. No more than 2 repeat measurements. * Exercises extensively in his normal life (e.g., marathon running, triathlon, physical sports at a contest level etc).

Design outcomes

Primary

MeasureTime frameDescription
Area Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxytryptamine (5-HT) in PlasmaDay -1 (Baseline), Day 1 and Day 14. Blood samples were taken predose (up to 15 minutes prior) and at 1, 2, 4, 8, 12, 16 and 24 hours post-dose.The area under the effect-time curve from time 0 to 24 hours postdose (AUEC\[0-24\]) of the neurotransmitter 5-HT (serotonin) in plasma was measured at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).
Maximum Concentration of 5-HT in PlasmaDay -1 (Baseline), Day 1 and Day 14. Blood samples were taken predose (up to 15 minutes prior) and at 1, 2, 4, 8, 12, 16 and 24 hours post-dose.The maximum observed effect (Emax), assessed by the maximum observed concentration of 5-HT in plasma measured at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).
Time to Maximum Concentration of 5-HT in PlasmaDay -1 (Baseline), Day 1 and Day 14. Blood samples were taken predose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.The time to reach maximum pharmacodynamic effect (Emax) was assessed by the time to maximum concentration of 5-HT in plasma at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).
Area Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HT in Cerebrospinal FluidDay -1 (Baseline), Day 1 and Day 14. CSF samples were taken prior to dose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.The area under the effect-time curve from time 0 to 24 hours postdose (AUEC\[0-24\]) of 5-hydroxytryptamine (5-HT) in cerebrospinal fluid (CSF) was measured at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).
Maximum Concentration of 5-HT in Cerobrospinal FluidDay -1 (Baseline), Day 1 and Day 14. CSF samples were taken prior to dose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.The maximum observed effect (Emax), assessed by the maximum concentration of 5-HT in cerebrospinal fluid (CSF) measured at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).
Time to Maximum Concentration of 5-HT in Cerebrospinal FluidDay -1, Day 1 and Day 14. CSF samples were taken predose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.The time to reach maximum pharmacodynamic effect (Emax) was assessed by the time to maximum concentration of 5-HT in cerebrospinal fluid (CSF) at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).
Area Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxyindoleacetic Acid (5-HIAA) in PlasmaDay 1 and Day 14. Blood samples were taken predose and at 1, 2, 4, 8, 12, 16 and 24 hours post-dose.Area under the effect-time curve from time 0 to 24 hours postdose (AUEC\[0-24\]) of 5-HIAA, a metabolite of the neurotransmitter serotonin, in plasma was measured after a single dose (Day 1) and after multiple doses (Day 14). Note: Plasma samples for 5-HIAA on Day -1 were lost in shipping. Therefore, no PD parameters were calculated for Day -1.
Maximum Concentration of 5-HIAA in PlasmaDay 1 and Day 14. Blood samples were taken predose (up to 15 minutes prior) and at 1, 2, 4, 8, 12, 16 and 24 hours post-dose.The maximum observed effect (Emax), assessed by the maximum observed concentration of 5-HIAA in plasma measured after a single dose (Day 1) and after multiple doses (Day 14). Note: Plasma samples for 5-HIAA on Day -1 were lost in shipping. Therefore, no PD parameters were calculated for Day -1
Time to Maximum Concentration of 5-HIAA in PlasmaDay 1 and Day 14. Blood samples were taken predose and at 1, 2, 4, 8, 12, 16 and 24 hours post-dose.The time to reach maximum pharmacodynamic effect (Emax) was assessed by the time to maximum concentration of 5-hydroxyindoleacetic acid (5-HIAA) in plasma after a single dose (Day 1) and after multiple doses (Day 14). Note: Plasma samples for 5-HIAA on Day -1 were lost in shipping. Therefore, no PD parameters were calculated for Day -1.
Area Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HIAA in Cerebrospinal FluidDay -1 (Baseline), Day 1 and Day 14. CSF samples were taken prior to dose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.The area under the effect-time curve from time 0 to 24 hours postdose (AUEC\[0-24\]) of 5-hydroxyindoleacetic acid (5-HIAA) in cerebrospinal fluid (CSF) was measured at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).
Maximum Concentration of 5-HIAA in Cerebrospinal FluidDay -1 (Baseline), Day 1 and Day 14. CSF samples were taken prior to dose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.The maximum observed effect (Emax), assessed by the maximum observed concentration of 5-HIAA in cerebrospinal fluid (CSF) measured at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).
Time to Maximum Concentration of 5-HIAA in Cerebrospinal FluidDay -1, Day 1 and Day 14. CSF samples were taken prior to dose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.The time to reach maximum pharmacodynamic effect (Emax) was assessed by the time to maximum concentration of 5-hydroxyindoleacetic acid (5-HIAA) in cerebrospinal fluid (CSF) at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).

Countries

United States

Participant flow

Recruitment details

Participants took part in the study at one investigative site in the United States from 14 March 2011 to 11 June 2011.

Pre-assignment details

In this study, 17 healthy men were enrolled and randomized to receive an oral dose of vortioxetine 20 mg or placebo in a 2:1 ratio.

Participants by arm

ArmCount
Vortioxetine
Vortioxetine 20 mg, encapsulated tablet, orally, once daily for up to 14 days.
12
Placebo
Vortioxetine placebo-matching capsules, orally, once daily for up to 14 days.
5
Total17

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event20

Baseline characteristics

CharacteristicVortioxetineTotalPlacebo
Age Continuous34.3 years
STANDARD_DEVIATION 11.19
34.4 years
STANDARD_DEVIATION 10.71
34.8 years
STANDARD_DEVIATION 10.71
Body Mass Index (BMI)26.2 kg/m^2
STANDARD_DEVIATION 2.85
26.1 kg/m^2
STANDARD_DEVIATION 2.56
25.8 kg/m^2
STANDARD_DEVIATION 1.92
Caffeine consumption
Consumes 0-5 cups daily
12 participants17 participants5 participants
Caffeine consumption
Consumes >5 cups daily
0 participants0 participants0 participants
Current nicotine user
No
12 participants17 participants5 participants
Current nicotine user
Yes
0 participants0 participants0 participants
Drinking habits
Drinks 0-14/week
12 participants17 participants5 participants
Drinking habits
Drinks >14/week
0 participants0 participants0 participants
Former nicotine user
No
11 participants15 participants4 participants
Former nicotine user
Yes
1 participants2 participants1 participants
Height176.8 cm
STANDARD_DEVIATION 5.88
176.6 cm
STANDARD_DEVIATION 6.37
175.9 cm
STANDARD_DEVIATION 8.15
Race/Ethnicity, Customized
Black or African American
3 participants4 participants1 participants
Race/Ethnicity, Customized
Hispanic or Latino
3 participants3 participants0 participants
Race/Ethnicity, Customized
Not Hispanic or Latino
9 participants14 participants5 participants
Race/Ethnicity, Customized
White
9 participants13 participants4 participants
Region of Enrollment
United States
12 participants17 participants5 participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
12 Participants17 Participants5 Participants
Weight81.8 kg
STANDARD_DEVIATION 8.84
81.3 kg
STANDARD_DEVIATION 8.29
79.9 kg
STANDARD_DEVIATION 7.52

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
11 / 124 / 5
serious
Total, serious adverse events
0 / 120 / 5

Outcome results

Primary

Area Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HIAA in Cerebrospinal Fluid

The area under the effect-time curve from time 0 to 24 hours postdose (AUEC\[0-24\]) of 5-hydroxyindoleacetic acid (5-HIAA) in cerebrospinal fluid (CSF) was measured at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).

Time frame: Day -1 (Baseline), Day 1 and Day 14. CSF samples were taken prior to dose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.

Population: The pharmacodynamic (PD) set consisted of all participants in the safety set with sufficient plasma or serum or CSF data for derivation of at least 1 PD parameter. If a patient's concentration profile contained ≤3 data points, the PD parameter results were not included. n indicates the number of patients with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
VortioxetineArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HIAA in Cerebrospinal FluidDay -1 (n=12, 5)620.61 ng*hr/mLStandard Deviation 182.391
VortioxetineArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HIAA in Cerebrospinal FluidDay 1 (n=12, 5)636.14 ng*hr/mLStandard Deviation 246.071
VortioxetineArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HIAA in Cerebrospinal FluidDay 14 (n=9, 5)429.23 ng*hr/mLStandard Deviation 99.575
PlaceboArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HIAA in Cerebrospinal FluidDay 1 (n=12, 5)774.95 ng*hr/mLStandard Deviation 319.86
PlaceboArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HIAA in Cerebrospinal FluidDay -1 (n=12, 5)718.14 ng*hr/mLStandard Deviation 247.082
PlaceboArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HIAA in Cerebrospinal FluidDay 14 (n=9, 5)644.24 ng*hr/mLStandard Deviation 206.121
Primary

Area Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HT in Cerebrospinal Fluid

The area under the effect-time curve from time 0 to 24 hours postdose (AUEC\[0-24\]) of 5-hydroxytryptamine (5-HT) in cerebrospinal fluid (CSF) was measured at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).

Time frame: Day -1 (Baseline), Day 1 and Day 14. CSF samples were taken prior to dose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.

Population: The pharmacodynamic (PD) set consisted of all participants in the safety set with sufficient plasma or serum or CSF data for derivation of at least 1 PD parameter. If a patient's concentration profile contained ≤3 data points, the PD parameter results were not included. n indicates the number of patients with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
VortioxetineArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HT in Cerebrospinal FluidDay -1 (n=11, 5)987.71 pg*hr/mLStandard Deviation 1898.943
VortioxetineArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HT in Cerebrospinal FluidDay 1 (n=11, 5)627.78 pg*hr/mLStandard Deviation 164.679
VortioxetineArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HT in Cerebrospinal FluidDay 14 (n=9, 5)1165.73 pg*hr/mLStandard Deviation 290.389
PlaceboArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HT in Cerebrospinal FluidDay -1 (n=11, 5)509.77 pg*hr/mLStandard Deviation 199.658
PlaceboArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HT in Cerebrospinal FluidDay 1 (n=11, 5)497.40 pg*hr/mLStandard Deviation 302.72
PlaceboArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-HT in Cerebrospinal FluidDay 14 (n=9, 5)444.88 pg*hr/mLStandard Deviation 24.908
Primary

Area Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxyindoleacetic Acid (5-HIAA) in Plasma

Area under the effect-time curve from time 0 to 24 hours postdose (AUEC\[0-24\]) of 5-HIAA, a metabolite of the neurotransmitter serotonin, in plasma was measured after a single dose (Day 1) and after multiple doses (Day 14). Note: Plasma samples for 5-HIAA on Day -1 were lost in shipping. Therefore, no PD parameters were calculated for Day -1.

Time frame: Day 1 and Day 14. Blood samples were taken predose and at 1, 2, 4, 8, 12, 16 and 24 hours post-dose.

Population: The pharmacodynamic (PD) set consisted of all participants in the safety set with sufficient plasma or serum or CSF data for derivation of at least 1 PD parameter. If a patient's concentration profile contained ≤3 data points, the PD parameter results were not included. n indicates the number of patients with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
VortioxetineArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxyindoleacetic Acid (5-HIAA) in PlasmaDay 1 (n=12, 5)140.01 ng*hr/mLStandard Deviation 23.633
VortioxetineArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxyindoleacetic Acid (5-HIAA) in PlasmaDay 14 (n=10, 5)143.69 ng*hr/mLStandard Deviation 30.049
PlaceboArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxyindoleacetic Acid (5-HIAA) in PlasmaDay 1 (n=12, 5)145.92 ng*hr/mLStandard Deviation 28.844
PlaceboArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxyindoleacetic Acid (5-HIAA) in PlasmaDay 14 (n=10, 5)140.40 ng*hr/mLStandard Deviation 25.305
Primary

Area Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxytryptamine (5-HT) in Plasma

The area under the effect-time curve from time 0 to 24 hours postdose (AUEC\[0-24\]) of the neurotransmitter 5-HT (serotonin) in plasma was measured at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).

Time frame: Day -1 (Baseline), Day 1 and Day 14. Blood samples were taken predose (up to 15 minutes prior) and at 1, 2, 4, 8, 12, 16 and 24 hours post-dose.

Population: The pharmacodynamic (PD) set consisted of all participants in the safety set with sufficient plasma or serum or CSF data for derivation of at least 1 PD parameter. If a patient's concentration profile contained ≤3 data points, the PD parameter results were not included. n indicates the number of patients with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
VortioxetineArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxytryptamine (5-HT) in PlasmaDay -1 (n=10, 4)4183024 pg*hr/mLStandard Deviation 1362135
VortioxetineArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxytryptamine (5-HT) in PlasmaDay 1 (n=6, 4)4224058 pg*hr/mLStandard Deviation 2028835
VortioxetineArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxytryptamine (5-HT) in PlasmaDay 14 (n=9, 5)1718863 pg*hr/mLStandard Deviation 530633
PlaceboArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxytryptamine (5-HT) in PlasmaDay -1 (n=10, 4)3854399 pg*hr/mLStandard Deviation 1728230
PlaceboArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxytryptamine (5-HT) in PlasmaDay 1 (n=6, 4)3912292 pg*hr/mLStandard Deviation 2083773
PlaceboArea Under the Effect Curve From Time Zero to 24 Hours Postdose of 5-hydroxytryptamine (5-HT) in PlasmaDay 14 (n=9, 5)3858350 pg*hr/mLStandard Deviation 2212719
Primary

Maximum Concentration of 5-HIAA in Cerebrospinal Fluid

The maximum observed effect (Emax), assessed by the maximum observed concentration of 5-HIAA in cerebrospinal fluid (CSF) measured at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).

Time frame: Day -1 (Baseline), Day 1 and Day 14. CSF samples were taken prior to dose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.

Population: The pharmacodynamic (PD) set consisted of all participants in the safety set with sufficient plasma or serum or CSF data for derivation of at least 1 PD parameter. If a patient's concentration profile contained ≤3 data points, the PD parameter results were not included. n indicates the number of patients with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
VortioxetineMaximum Concentration of 5-HIAA in Cerebrospinal FluidDay -1 (n=12, 5)29.87 ng/mLStandard Deviation 8.231
VortioxetineMaximum Concentration of 5-HIAA in Cerebrospinal FluidDay 1 (n=12, 5)31.13 ng/mLStandard Deviation 9.567
VortioxetineMaximum Concentration of 5-HIAA in Cerebrospinal FluidDay 14 (n=9, 5)20.18 ng/mLStandard Deviation 4.935
PlaceboMaximum Concentration of 5-HIAA in Cerebrospinal FluidDay -1 (n=12, 5)34.30 ng/mLStandard Deviation 12.27
PlaceboMaximum Concentration of 5-HIAA in Cerebrospinal FluidDay 1 (n=12, 5)36.98 ng/mLStandard Deviation 18.346
PlaceboMaximum Concentration of 5-HIAA in Cerebrospinal FluidDay 14 (n=9, 5)30.16 ng/mLStandard Deviation 8.768
Primary

Maximum Concentration of 5-HIAA in Plasma

The maximum observed effect (Emax), assessed by the maximum observed concentration of 5-HIAA in plasma measured after a single dose (Day 1) and after multiple doses (Day 14). Note: Plasma samples for 5-HIAA on Day -1 were lost in shipping. Therefore, no PD parameters were calculated for Day -1

Time frame: Day 1 and Day 14. Blood samples were taken predose (up to 15 minutes prior) and at 1, 2, 4, 8, 12, 16 and 24 hours post-dose.

Population: The pharmacodynamic (PD) set consisted of all participants in the safety set with sufficient plasma or serum or CSF data for derivation of at least 1 PD parameter. If a patient's concentration profile contained ≤3 data points, the PD parameter results were not included. n indicates the number of patients with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
VortioxetineMaximum Concentration of 5-HIAA in PlasmaDay 1 (n=12, 5)7.25 ng/mLStandard Deviation 1.113
VortioxetineMaximum Concentration of 5-HIAA in PlasmaDay 14 (n=10, 5)6.90 ng/mLStandard Deviation 1.402
PlaceboMaximum Concentration of 5-HIAA in PlasmaDay 1 (n=12, 5)6.97 ng/mLStandard Deviation 1.282
PlaceboMaximum Concentration of 5-HIAA in PlasmaDay 14 (n=10, 5)7.10 ng/mLStandard Deviation 1.301
Primary

Maximum Concentration of 5-HT in Cerobrospinal Fluid

The maximum observed effect (Emax), assessed by the maximum concentration of 5-HT in cerebrospinal fluid (CSF) measured at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).

Time frame: Day -1 (Baseline), Day 1 and Day 14. CSF samples were taken prior to dose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.

Population: The pharmacodynamic (PD) set consisted of all participants in the safety set with sufficient plasma or serum or CSF data for derivation of at least 1 PD parameter. If a patient's concentration profile contained ≤3 data points, the PD parameter results were not included. n indicates the number of patients with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
VortioxetineMaximum Concentration of 5-HT in Cerobrospinal FluidDay -1 (n=11, 5)116.60 pg/mLStandard Deviation 293.721
VortioxetineMaximum Concentration of 5-HT in Cerobrospinal FluidDay 1 (n=11, 5)35.46 pg/mLStandard Deviation 13.172
VortioxetineMaximum Concentration of 5-HT in Cerobrospinal FluidDay 14 (n=9, 5)59.80 pg/mLStandard Deviation 16.524
PlaceboMaximum Concentration of 5-HT in Cerobrospinal FluidDay -1 (n=11, 5)67.74 pg/mLStandard Deviation 94.396
PlaceboMaximum Concentration of 5-HT in Cerobrospinal FluidDay 1 (n=11, 5)24.10 pg/mLStandard Deviation 14.03
PlaceboMaximum Concentration of 5-HT in Cerobrospinal FluidDay 14 (n=9, 5)51.46 pg/mLStandard Deviation 33.647
Primary

Maximum Concentration of 5-HT in Plasma

The maximum observed effect (Emax), assessed by the maximum observed concentration of 5-HT in plasma measured at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).

Time frame: Day -1 (Baseline), Day 1 and Day 14. Blood samples were taken predose (up to 15 minutes prior) and at 1, 2, 4, 8, 12, 16 and 24 hours post-dose.

Population: The pharmacodynamic (PD) set consisted of all participants in the safety set with sufficient plasma or serum or CSF data for derivation of at least 1 PD parameter. If a patient's concentration profile contained ≤3 data points, the PD parameter results were not included. n indicates the number of patients with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
VortioxetineMaximum Concentration of 5-HT in PlasmaDay -1 (n=10, 4)273800 pg/mLStandard Deviation 111197
VortioxetineMaximum Concentration of 5-HT in PlasmaDay 1 (n=6, 4)247667 pg/mLStandard Deviation 136695
VortioxetineMaximum Concentration of 5-HT in PlasmaDay 14 (n=9, 5)94233.3 pg/mLStandard Deviation 40258.4
PlaceboMaximum Concentration of 5-HT in PlasmaDay -1 (n=10, 4)231500 pg/mLStandard Deviation 98083.3
PlaceboMaximum Concentration of 5-HT in PlasmaDay 1 (n=6, 4)251250 pg/mLStandard Deviation 63615.4
PlaceboMaximum Concentration of 5-HT in PlasmaDay 14 (n=9, 5)242200 pg/mLStandard Deviation 115103
Primary

Time to Maximum Concentration of 5-HIAA in Cerebrospinal Fluid

The time to reach maximum pharmacodynamic effect (Emax) was assessed by the time to maximum concentration of 5-hydroxyindoleacetic acid (5-HIAA) in cerebrospinal fluid (CSF) at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).

Time frame: Day -1, Day 1 and Day 14. CSF samples were taken prior to dose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.

Population: The pharmacodynamic (PD) set consisted of all participants in the safety set with sufficient plasma or serum or CSF data for derivation of at least 1 PD parameter. If a patient's concentration profile contained ≤3 data points, the PD parameter results were not included. n indicates the number of patients with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
VortioxetineTime to Maximum Concentration of 5-HIAA in Cerebrospinal FluidDay 14 (n=9, 5)11.70 hoursStandard Deviation 10.576
VortioxetineTime to Maximum Concentration of 5-HIAA in Cerebrospinal FluidDay -1 (n=12, 5)14.16 hoursStandard Deviation 10.71
VortioxetineTime to Maximum Concentration of 5-HIAA in Cerebrospinal FluidDay 1 (n=12, 5)6.24 hoursStandard Deviation 8.96
PlaceboTime to Maximum Concentration of 5-HIAA in Cerebrospinal FluidDay 14 (n=9, 5)9.90 hoursStandard Deviation 9.592
PlaceboTime to Maximum Concentration of 5-HIAA in Cerebrospinal FluidDay -1 (n=12, 5)19.78 hoursStandard Deviation 8.877
PlaceboTime to Maximum Concentration of 5-HIAA in Cerebrospinal FluidDay 1 (n=12, 5)19.00 hoursStandard Deviation 10.621
Primary

Time to Maximum Concentration of 5-HIAA in Plasma

The time to reach maximum pharmacodynamic effect (Emax) was assessed by the time to maximum concentration of 5-hydroxyindoleacetic acid (5-HIAA) in plasma after a single dose (Day 1) and after multiple doses (Day 14). Note: Plasma samples for 5-HIAA on Day -1 were lost in shipping. Therefore, no PD parameters were calculated for Day -1.

Time frame: Day 1 and Day 14. Blood samples were taken predose and at 1, 2, 4, 8, 12, 16 and 24 hours post-dose.

Population: The pharmacodynamic (PD) set consisted of all participants in the safety set with sufficient plasma or serum or CSF data for derivation of at least 1 PD parameter. If a patient's concentration profile contained ≤3 data points, the PD parameter results were not included. n indicates the number of patients with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
VortioxetineTime to Maximum Concentration of 5-HIAA in PlasmaDay 1 (n=12, 5)13.02 hoursStandard Deviation 10.992
VortioxetineTime to Maximum Concentration of 5-HIAA in PlasmaDay 14 (n=10, 5)16.80 hoursStandard Deviation 7.005
PlaceboTime to Maximum Concentration of 5-HIAA in PlasmaDay 1 (n=12, 5)15.13 hoursStandard Deviation 9.886
PlaceboTime to Maximum Concentration of 5-HIAA in PlasmaDay 14 (n=10, 5)18.40 hoursStandard Deviation 5.367
Primary

Time to Maximum Concentration of 5-HT in Cerebrospinal Fluid

The time to reach maximum pharmacodynamic effect (Emax) was assessed by the time to maximum concentration of 5-HT in cerebrospinal fluid (CSF) at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).

Time frame: Day -1, Day 1 and Day 14. CSF samples were taken predose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.

Population: The pharmacodynamic (PD) set consisted of all participants in the safety set with sufficient plasma or serum or CSF data for derivation of at least 1 PD parameter. If a patient's concentration profile contained ≤3 data points, the PD parameter results were not included. n indicates the number of patients with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
VortioxetineTime to Maximum Concentration of 5-HT in Cerebrospinal FluidDay -1 (n=11, 5)4.30 hoursStandard Deviation 5.89
VortioxetineTime to Maximum Concentration of 5-HT in Cerebrospinal FluidDay 1 (n=11, 5)17.32 hoursStandard Deviation 7.177
VortioxetineTime to Maximum Concentration of 5-HT in Cerebrospinal FluidDay 14 (n=9, 5)3.02 hoursStandard Deviation 3.576
PlaceboTime to Maximum Concentration of 5-HT in Cerebrospinal FluidDay -1 (n=11, 5)7.13 hoursStandard Deviation 10.624
PlaceboTime to Maximum Concentration of 5-HT in Cerebrospinal FluidDay 1 (n=11, 5)6.92 hoursStandard Deviation 8.225
PlaceboTime to Maximum Concentration of 5-HT in Cerebrospinal FluidDay 14 (n=9, 5)4.94 hoursStandard Deviation 6.964
Primary

Time to Maximum Concentration of 5-HT in Plasma

The time to reach maximum pharmacodynamic effect (Emax) was assessed by the time to maximum concentration of 5-HT in plasma at Baseline, after a single dose (Day 1) and after multiple doses (Day 14).

Time frame: Day -1 (Baseline), Day 1 and Day 14. Blood samples were taken predose and at 1, 2, 4, 8, 12, 16, and 24 hours postdose.

Population: The pharmacodynamic (PD) set consisted of all participants in the safety set with sufficient plasma or serum or CSF data for derivation of at least 1 PD parameter. If a patient's concentration profile contained ≤3 data points, the PD parameter results were not included. n indicates the number of patients with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
VortioxetineTime to Maximum Concentration of 5-HT in PlasmaDay -1 (n=10, 4)12.65 hoursStandard Deviation 9.409
VortioxetineTime to Maximum Concentration of 5-HT in PlasmaDay 1 (n=6, 4)4.86 hoursStandard Deviation 7.253
VortioxetineTime to Maximum Concentration of 5-HT in PlasmaDay 14 (n=9, 5)9.11 hoursStandard Deviation 10.08
PlaceboTime to Maximum Concentration of 5-HT in PlasmaDay -1 (n=10, 4)7.26 hoursStandard Deviation 7.984
PlaceboTime to Maximum Concentration of 5-HT in PlasmaDay 1 (n=6, 4)14.42 hoursStandard Deviation 11.146
PlaceboTime to Maximum Concentration of 5-HT in PlasmaDay 14 (n=9, 5)8.40 hoursStandard Deviation 6.986

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