Trial Outcomes & Findings for Pitolisant Effects on Alcohol Self-Administration in Heavy Drinkers (NCT NCT04596267)

NCT ID: NCT04596267

Last Updated: 2023-12-04

Results Overview

Alcohol consumption will be measured by using a graduated cylinder to determine the amount of alcohol given to the subject that was not consumed. This outcome will be measured as standard drink units (SDU). A standard drink contains approximately 0.6 fluid ounces of pure alcohol. Lower SDUs are favorable.

Recruitment status

TERMINATED

Study phase

PHASE1

Target enrollment

9 participants

Primary outcome timeframe

2.6 hours

Results posted on

2023-12-04

Participant Flow

A.total of 9 subjects were enrolled and 7 completed the study.

Participant milestones

Participant milestones
Measure
Pitolisant Then Placebo
This is a within subjects design study in which each subject receives both study drug and placebo. Subjects in this group received a dose of 8.9 mg (two 4.45 mg pills) of pitolisant once daily over a 7-day period and a dose of 17.8 mg (one 17.8 mg pill) of pitolisant once daily over a 5-day period before the first alcohol self-administration trial and 12 days of matched placebo before the second alcohol self-administration trial.
Placebo Then Pitolisant
This is a within subjects design study in which each subject receives both study drug and placebo. Subjects in this group received 12 days of matched placebo before the first alcohol self-administration trial and a dose of 8.9 mg (two 4.45 mg pills) of pitolisant once daily over a 7-day period and a dose of 17.8 mg (one 17.8 mg pill) of pitolisant once daily over a 5-day period before the second alcohol self-administration trial.
Medication Dispense/Exposure Period 1
STARTED
4
5
Medication Dispense/Exposure Period 1
COMPLETED
3
4
Medication Dispense/Exposure Period 1
NOT COMPLETED
1
1
Alcohol Self-Administration Trial 1
STARTED
3
4
Alcohol Self-Administration Trial 1
COMPLETED
3
4
Alcohol Self-Administration Trial 1
NOT COMPLETED
0
0
Medication Dispense/Exposure Period 2
STARTED
3
4
Medication Dispense/Exposure Period 2
COMPLETED
3
4
Medication Dispense/Exposure Period 2
NOT COMPLETED
0
0
Alcohol Self-Administration Trial 2
STARTED
3
4
Alcohol Self-Administration Trial 2
COMPLETED
3
4
Alcohol Self-Administration Trial 2
NOT COMPLETED
0
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Pitolisant Then Placebo
This is a within subjects design study in which each subject receives both study drug and placebo. Subjects in this group received a dose of 8.9 mg (two 4.45 mg pills) of pitolisant once daily over a 7-day period and a dose of 17.8 mg (one 17.8 mg pill) of pitolisant once daily over a 5-day period before the first alcohol self-administration trial and 12 days of matched placebo before the second alcohol self-administration trial.
Placebo Then Pitolisant
This is a within subjects design study in which each subject receives both study drug and placebo. Subjects in this group received 12 days of matched placebo before the first alcohol self-administration trial and a dose of 8.9 mg (two 4.45 mg pills) of pitolisant once daily over a 7-day period and a dose of 17.8 mg (one 17.8 mg pill) of pitolisant once daily over a 5-day period before the second alcohol self-administration trial.
Medication Dispense/Exposure Period 1
Lost to Follow-up
1
0
Medication Dispense/Exposure Period 1
Physician Decision
0
1

Baseline Characteristics

Pitolisant Effects on Alcohol Self-Administration in Heavy Drinkers

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo Then Pitolisant
n=5 Participants
This is a within subjects design study in which each subject receives both study drug and placebo. Subjects in this group received 12 days of matched placebo before the first alcohol self-administration trial and a dose of 8.9 mg (two 4.45 mg pills) of pitolisant once daily over a 7-day period and a dose of 17.8 mg (one 17.8 mg pill) of pitolisant once daily over a 5-day period before the second alcohol self-administration trial.
Total
n=9 Participants
Total of all reporting groups
Pitolisant Then Placebo
n=4 Participants
This is a within subjects design study in which each subject receives both study drug and placebo. Subjects in this group received a dose of 8.9 mg (two 4.45 mg pills) of pitolisant once daily over a 7-day period and a dose of 17.8 mg (one 17.8 mg pill) of pitolisant once daily over a 5-day period before the first alcohol self-administration trial and 12 days of matched placebo before the second alcohol self-administration trial.
Age, Categorical
<=18 years
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=99 Participants
Age, Categorical
Between 18 and 65 years
5 Participants
n=107 Participants
9 Participants
n=206 Participants
4 Participants
n=99 Participants
Age, Categorical
>=65 years
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=99 Participants
Age, Continuous
33 years
STANDARD_DEVIATION 7.9 • n=107 Participants
30.9 years
STANDARD_DEVIATION 7.1 • n=206 Participants
28 years
STANDARD_DEVIATION 6 • n=99 Participants
Sex: Female, Male
Female
2 Participants
n=107 Participants
3 Participants
n=206 Participants
1 Participants
n=99 Participants
Sex: Female, Male
Male
3 Participants
n=107 Participants
6 Participants
n=206 Participants
3 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants
n=107 Participants
9 Participants
n=206 Participants
4 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=99 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=99 Participants
Race (NIH/OMB)
Asian
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=99 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=99 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=107 Participants
1 Participants
n=206 Participants
0 Participants
n=99 Participants
Race (NIH/OMB)
White
4 Participants
n=107 Participants
8 Participants
n=206 Participants
4 Participants
n=99 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=99 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=99 Participants
Region of Enrollment
United States
5 participants
n=107 Participants
9 participants
n=206 Participants
4 participants
n=99 Participants

PRIMARY outcome

Timeframe: 2.6 hours

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol consumption will be measured by using a graduated cylinder to determine the amount of alcohol given to the subject that was not consumed. This outcome will be measured as standard drink units (SDU). A standard drink contains approximately 0.6 fluid ounces of pure alcohol. Lower SDUs are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Consumption in Alcohol Self-Administration Trials
67.214 Total SDUs
Standard Deviation 25.759
66.786 Total SDUs
Standard Deviation 15.369

PRIMARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol consumption will be measured throughout the study by their Blood Alcohol Content (BAC) measured by a breathalyzer test. Lower BACs are favorable

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Consumption (BAC): Observation Period, Minute 10
0.034 Grams of alcohol/210 Liters of breath
Standard Deviation 0.005
0.033 Grams of alcohol/210 Liters of breath
Standard Deviation 0.010

PRIMARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol consumption will be measured throughout the study by their Blood Alcohol Content (BAC) measured by a breathalyzer test. Lower BACs are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Consumption (BAC): Observation Period, Minute 20
0.038 Grams of alcohol/210 Liters of breath
Standard Deviation 0.009
0.0364 Grams of alcohol/210 Liters of breath
Standard Deviation 0.011

PRIMARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol consumption will be measured throughout the study by their Blood Alcohol Content (BAC) measured by a breathalyzer test. Lower BACs are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Consumption (BAC): Observation Period, Minute 30
0.037 Grams of alcohol/210 Liters of breath
Standard Deviation 0.003
0.034 Grams of alcohol/210 Liters of breath
Standard Deviation 0.009

PRIMARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol consumption will be measured throughout the study by their Blood Alcohol Content (BAC) measured by a breathalyzer test. Lower BACs are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Consumption (BAC): Observation Period, Minute 40
0.033 Grams of alcohol/210 Liters of breath
Standard Deviation 0.006
0.031 Grams of alcohol/210 Liters of breath
Standard Deviation 0.006

PRIMARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol consumption will be measured throughout the study by their Blood Alcohol Content (BAC) measured by a breathalyzer test. Lower BACs are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Consumption (BAC): Self-administration Block 1, Minute 30
0.069 Grams of alcohol/210 Liters of breath
Standard Deviation 0.046
0.063 Grams of alcohol/210 Liters of breath
Standard Deviation 0.033

PRIMARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol consumption will be measured throughout the study by their Blood Alcohol Content (BAC) measured by a breathalyzer test. Lower BACs are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Consumption (BAC): Self-administration Block 1, Minute 60
0.072 Grams of alcohol/210 Liters of breath
Standard Deviation 0.037
0.047 Grams of alcohol/210 Liters of breath
Standard Deviation 0.021

PRIMARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol consumption will be measured throughout the study by their Blood Alcohol Content (BAC) measured by a breathalyzer test. Lower BACs are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Consumption (BAC): Self-administration Block 2, Minute 30
0.086 Grams of alcohol/210 Liters of breath
Standard Deviation 0.040
0.075 Grams of alcohol/210 Liters of breath
Standard Deviation 0.046

PRIMARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol consumption will be measured throughout the study by their Blood Alcohol Content (BAC) measured by a breathalyzer test. Lower BACs are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Consumption (BAC): Self-administration Block 2, Minute 60
0.079 Grams of alcohol/210 Liters of breath
Standard Deviation 0.047
0.082 Grams of alcohol/210 Liters of breath
Standard Deviation 0.056

SECONDARY outcome

Timeframe: 12 days

Population: A total of 9 subjects were randomized and 7 completed.

The Visual Analog Scale (VAS) will be used to assess alcohol craving during the medication exposure period. The VAS is a 10 cm straight line with one end meaning no alcohol craving and the other end meaning intense alcohol craving. Higher VAS scores are associated with more cravings. Lower VAS scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Craving During 12-day Drug Exposure
53.2 score on a scale
Standard Deviation 30.1
47.2 score on a scale
Standard Deviation 33.7

SECONDARY outcome

Timeframe: 12 days

Population: 19 subjects were consented but 10 dropped out prior to randomization in the study (ineligible after screening or lost to follow-up). A total of 9 subjects were randomized and 7 completed.

Alcohol consumption during the 12 days of drug exposure will be measured using the timeline followback method. Lower (Standard Drink Units) SDUs are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Consumption During the 12-day Drug Exposure
67.2 SDUs
Standard Deviation 25.8
66.8 SDUs
Standard Deviation 15.4

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the stimulant effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher BAES scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on stimulation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Stimulation: Observation Period, Minute 10
31.714 score on a scale
Standard Deviation 20.878
30.714 score on a scale
Standard Deviation 12.433

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the stimulant effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on stimulation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Stimulation: Observation Period, Minute 20
31.429 score on a scale
Standard Deviation 19.957
30.714 score on a scale
Standard Deviation 12.433

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the stimulant effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on stimulation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Stimulation: Observation Period, Minute 30
29.571 score on a scale
Standard Deviation 18.183
31.857 score on a scale
Standard Deviation 13.322

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the stimulant effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on stimulation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Stimulation: Observation Period, Minute 40
29.714 score on a scale
Standard Deviation 17.557
31.000 score on a scale
Standard Deviation 14.944

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the stimulant effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on stimulation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Stimulation: Self-Administration Block 1, Minute 30
32.143 score on a scale
Standard Deviation 19.463
32.000 score on a scale
Standard Deviation 11.719

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the stimulant effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on stimulation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Stimulation: Self-Administration Block 1, Minute 60
31.571 score on a scale
Standard Deviation 18.831
34.429 score on a scale
Standard Deviation 14.954

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the stimulant effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on stimulation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Stimulation: Self-Administration Block 2, Minute 30
31.286 score on a scale
Standard Deviation 17.792
33.714 score on a scale
Standard Deviation 15.348

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the stimulant effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on stimulation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Stimulation: Self-Administration Block 2, Minute 60
28.714 score on a scale
Standard Deviation 16.680
32.714 score on a scale
Standard Deviation 16.007

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the sedative effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on sedation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Sedation: Observation Period, Minute 10
12.714 score on a scale
Standard Deviation 8.920
18.857 score on a scale
Standard Deviation 15.742

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the sedative effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on sedation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Sedation: Observation Period, Minute 20
9.429 score on a scale
Standard Deviation 5.827
18.286 score on a scale
Standard Deviation 14.407

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the sedative effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on sedation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Sedation: Observation Period, Minute 30
7.286 score on a scale
Standard Deviation 5.407
18.286 score on a scale
Standard Deviation 17.114

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the sedative effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on sedation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Sedation: Observation Period, Minute 40
8.571 score on a scale
Standard Deviation 7.300
18.286 score on a scale
Standard Deviation 17.026

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the sedative effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on sedation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Sedation: Self-Administration Block 1, Minute 30
9.714 score on a scale
Standard Deviation 7.041
20.714 score on a scale
Standard Deviation 18.848

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the sedative effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on sedation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Sedation: Self-administration Block 1, Minute 60
10.286 score on a scale
Standard Deviation 8.440
18.143 score on a scale
Standard Deviation 18.614

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the sedative effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on sedation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Sedation: Self-administration Block 2, Minute 30
11.286 score on a scale
Standard Deviation 10.323
17.571 score on a scale
Standard Deviation 18.537

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Whether pitolisant increases the sedative effects of a priming drink of alcohol will be assessed using the Biphasic Alcohol Effects Scale (BAES). It is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. It consists of fourteen items, that comprise two subscales (stimulant and sedative). Items are rated on a eleven-point scale from 0 (not at all) to 10 (extremely). The stimulant subscale can range from 0 to 70 and the sedative scale can rage from 0 to 50. Higher scores are associated with more stimulant and sedative effects, respectively. This section focuses solely on sedation. Lower BAES scores are favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol-induced Sedation: Self-administration Block 2, Minute 60
9.571 score on a scale
Standard Deviation 14.316
16.286 score on a scale
Standard Deviation 19.914

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

The Alcohol Urge questionnaire (AUQ) is an 8 item measure of self-reported urges to drink in human laboratory studies that assesses the participant's urge for an alcoholic drink at the time the questionnaire is completed, Questions are in the form of a 7-point Likert scale (from strongly disagree to strongly agree) and participants select the extent to which they disagree or agree with the 8 statements relating to desire to drink, expectation of a desired outcome from drinking, and inability to avoid drinking if alcohol was available. The minimum AUQ score is 8 and the maximum score is 56. Lower AUQ scores are associated with less urge for an alcoholic drink, and therefore more favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Urge: Self-administration Block 1, Minute 30
26.57 score on a scale
Standard Deviation 10.937
24.00 score on a scale
Standard Deviation 3.964

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

The Alcohol Urge questionnaire (AUQ) is an 8 item measure of self-reported urges to drink in human laboratory studies that assesses the participant's urge for an alcoholic drink at the time the questionnaire is completed, Questions are in the form of a 7-point Likert scale (from strongly disagree to strongly agree) and participants select the extent to which they disagree or agree with the 8 statements relating to desire to drink, expectation of a desired outcome from drinking, and inability to avoid drinking if alcohol was available. The minimum AUQ score is 8 and the maximum score is 56. Lower AUQ scores are associated with less urge for an alcoholic drink, and therefore more favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Urge: Self-administration Block 1, Minute 60
23.43 score on a scale
Standard Deviation 11.674
27.14 score on a scale
Standard Deviation 11.466

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

The Alcohol Urge questionnaire (AUQ) is an 8 item measure of self-reported urges to drink in human laboratory studies that assesses the participant's urge for an alcoholic drink at the time the questionnaire is completed, Questions are in the form of a 7-point Likert scale (from strongly disagree to strongly agree) and participants select the extent to which they disagree or agree with the 8 statements relating to desire to drink, expectation of a desired outcome from drinking, and inability to avoid drinking if alcohol was available. The minimum AUQ score is 8 and the maximum score is 56. Lower AUQ scores are associated with less urge for an alcoholic drink, and therefore more favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Urge: Self-administration Block 2, Minute 30
21.29 score on a scale
Standard Deviation 13.048
23.29 score on a scale
Standard Deviation 12.079

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

The Alcohol Urge questionnaire (AUQ) is an 8 item measure of self-reported urges to drink in human laboratory studies that assesses the participant's urge for an alcoholic drink at the time the questionnaire is completed, Questions are in the form of a 7-point Likert scale (from strongly disagree to strongly agree) and participants select the extent to which they disagree or agree with the 8 statements relating to desire to drink, expectation of a desired outcome from drinking, and inability to avoid drinking if alcohol was available. The minimum AUQ score is 8 and the maximum score is 56. Lower AUQ scores are associated with less urge for an alcoholic drink, and therefore more favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=4 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Urge: Self-administration Block 2, Minute 60
22.00 score on a scale
Standard Deviation 12.055
22.43 score on a scale
Standard Deviation 11.731

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol craving will be measured by self report with the Visual Analog Scale (VAS). The VAS is a straight line with one end meaning no alcohol craving (score of 0) and the other end meaning intense alcohol craving (score of 100). The Participant marks a point on the line that matches their amount of alcohol craving. Lower VAS score is favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Craving: Observation Period, Minute 10
44.57 score on a scale
Standard Deviation 22.970
34.71 score on a scale
Standard Deviation 21.623

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol craving will be measured by self report with the Visual Analog Scale (VAS). The VAS is a straight line with one end meaning no alcohol craving (score of 0) and the other end meaning intense alcohol craving (score of 100). The Participant marks a point on the line that matches their amount of alcohol craving. Lower VAS score is favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Craving: Observation Period, Minute 20
44.43 score on a scale
Standard Deviation 31.405
37.14 score on a scale
Standard Deviation 23.398

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol craving will be measured by self report with the Visual Analog Scale (VAS). The VAS is a straight line with one end meaning no alcohol craving (score of 0) and the other end meaning intense alcohol craving (score of 100). The Participant marks a point on the line that matches their amount of alcohol craving. Lower VAS score is favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Craving: Observation Period, Minute 30
47.29 score on a scale
Standard Deviation 26.266
39.57 score on a scale
Standard Deviation 26.038

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol craving will be measured by self report with the Visual Analog Scale (VAS). The VAS is a straight line with one end meaning no alcohol craving (score of 0) and the other end meaning intense alcohol craving (score of 100). The Participant marks a point on the line that matches their amount of alcohol craving. Lower VAS score is favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Craving: Observation Period, Minute 40
50.57 score on a scale
Standard Deviation 29.051
34.86 score on a scale
Standard Deviation 25.016

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol craving will be measured by self report with the Visual Analog Scale (VAS). The VAS is a straight line with one end meaning no alcohol craving (score of 0) and the other end meaning intense alcohol craving (score of 100). The Participant marks a point on the line that matches their amount of alcohol craving. Lower VAS score is favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Craving: Self-administration Block 1, Minute 30
41.29 score on a scale
Standard Deviation 24.965
39.86 score on a scale
Standard Deviation 28.962

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol craving will be measured by self report with the Visual Analog Scale (VAS). The VAS is a straight line with one end meaning no alcohol craving (score of 0) and the other end meaning intense alcohol craving (score of 100). The Participant marks a point on the line that matches their amount of alcohol craving. Lower VAS score is favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Craving: Self-administration Block 1, Minute 60
42.14 score on a scale
Standard Deviation 27.492
40.86 score on a scale
Standard Deviation 31.519

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol craving will be measured by self report with the Visual Analog Scale (VAS). The VAS is a straight line with one end meaning no alcohol craving (score of 0) and the other end meaning intense alcohol craving (score of 100). The Participant marks a point on the line that matches their amount of alcohol craving. Lower VAS score is favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Craving: Self-administration Block 2, Minute 30
35.00 score on a scale
Standard Deviation 33.650
45.57 score on a scale
Standard Deviation 31.133

SECONDARY outcome

Timeframe: 1 minute

Population: A total of 9 subjects were randomized and 7 completed.

Alcohol craving will be measured by self report with the Visual Analog Scale (VAS). The VAS is a straight line with one end meaning no alcohol craving (score of 0) and the other end meaning intense alcohol craving (score of 100). The Participant marks a point on the line that matches their amount of alcohol craving. Lower VAS score is favorable.

Outcome measures

Outcome measures
Measure
Pitolisant
n=7 Participants
Subjects received 12 days of Pitolisant before the alcohol self-administration trial.
Placebo
n=7 Participants
Subjects received 12 days of placebo before the alcohol self-administration trial.
Alcohol Craving: Self-administration Block 2, Minute 60
41.14 score on a scale
Standard Deviation 35.315
42.43 score on a scale
Standard Deviation 29.860

Adverse Events

Pitolisant

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Placebo

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Pitolisant
n=7 participants at risk
This is a within subjects design study in which each subject receives both study drug and placebo. Subjects received a dose of 8.9 mg (two 4.45 mg pills) of pitolisant once daily over a 7-day period and a dose of 17.8 mg (one 17.8 mg pill) of pitolisant once daily over a 5-day period before the first alcohol self-administration trial.
Placebo
n=7 participants at risk
This is a within subjects design study in which each subject receives both study drug and placebo. Subjects in this group received 12 days of matched placebo before the first alcohol self-administration trial.
Renal and urinary disorders
Bright yellow urine
28.6%
2/7 • Number of events 2 • Up to 48 Days
The primary risks of this study were risks related to taking study medication, loss of confidentiality, discomfort with study procedures, overconsumption of alcohol, and interference with efforts for recovery from alcohol use disorder. These risks were adequately minimized by study design and adherence to the study protocol.
28.6%
2/7 • Number of events 2 • Up to 48 Days
The primary risks of this study were risks related to taking study medication, loss of confidentiality, discomfort with study procedures, overconsumption of alcohol, and interference with efforts for recovery from alcohol use disorder. These risks were adequately minimized by study design and adherence to the study protocol.
Gastrointestinal disorders
Nausea
14.3%
1/7 • Number of events 1 • Up to 48 Days
The primary risks of this study were risks related to taking study medication, loss of confidentiality, discomfort with study procedures, overconsumption of alcohol, and interference with efforts for recovery from alcohol use disorder. These risks were adequately minimized by study design and adherence to the study protocol.
0.00%
0/7 • Up to 48 Days
The primary risks of this study were risks related to taking study medication, loss of confidentiality, discomfort with study procedures, overconsumption of alcohol, and interference with efforts for recovery from alcohol use disorder. These risks were adequately minimized by study design and adherence to the study protocol.
General disorders
Increased Thirst
14.3%
1/7 • Number of events 1 • Up to 48 Days
The primary risks of this study were risks related to taking study medication, loss of confidentiality, discomfort with study procedures, overconsumption of alcohol, and interference with efforts for recovery from alcohol use disorder. These risks were adequately minimized by study design and adherence to the study protocol.
0.00%
0/7 • Up to 48 Days
The primary risks of this study were risks related to taking study medication, loss of confidentiality, discomfort with study procedures, overconsumption of alcohol, and interference with efforts for recovery from alcohol use disorder. These risks were adequately minimized by study design and adherence to the study protocol.
General disorders
Left Ankle Pain
14.3%
1/7 • Number of events 1 • Up to 48 Days
The primary risks of this study were risks related to taking study medication, loss of confidentiality, discomfort with study procedures, overconsumption of alcohol, and interference with efforts for recovery from alcohol use disorder. These risks were adequately minimized by study design and adherence to the study protocol.
0.00%
0/7 • Up to 48 Days
The primary risks of this study were risks related to taking study medication, loss of confidentiality, discomfort with study procedures, overconsumption of alcohol, and interference with efforts for recovery from alcohol use disorder. These risks were adequately minimized by study design and adherence to the study protocol.
General disorders
Right knee contusion with abrasion
14.3%
1/7 • Number of events 1 • Up to 48 Days
The primary risks of this study were risks related to taking study medication, loss of confidentiality, discomfort with study procedures, overconsumption of alcohol, and interference with efforts for recovery from alcohol use disorder. These risks were adequately minimized by study design and adherence to the study protocol.
0.00%
0/7 • Up to 48 Days
The primary risks of this study were risks related to taking study medication, loss of confidentiality, discomfort with study procedures, overconsumption of alcohol, and interference with efforts for recovery from alcohol use disorder. These risks were adequately minimized by study design and adherence to the study protocol.

Additional Information

Dr. Eric Devine

Boston Medical Center

Phone: 617-418-7888

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place