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Human Laboratory Study of ASP8062 for Alcohol Use Disorder

Human Laboratory Study of ASP8062 for Alcohol Use Disorder

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05096117
Enrollment
60
Registered
2021-10-27
Start date
2021-12-13
Completion date
2023-03-22
Last updated
2024-12-03

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

Conditions

Alcohol Drinking, Alcohol Use Disorder, Alcohol Use Disorder (AUD)

Brief summary

The primary objective of this study is to evaluate the effects of ASP8062, 25 mg once a day and matched placebo, on alcohol cue-elicited alcohol craving during a human laboratory paradigm after 2 weeks of daily dosing among subjects with moderate to severe alcohol use disorder (AUD) as confirmed by the Diagnostic and Statistical Manual of Mental Disorders - Fifth Edition (DSM-5™). Secondary objectives include evaluation of ASP8062, 25 mg once a day, and matched placebo on reduction of alcohol consumption, alcohol craving, cigarette smoking (among smokers), mood, sleep, alcohol use negative consequences, study retention, and safety and tolerability throughout the last 4 weeks of the treatment phase of the study.

Interventions

ASP8062 is a novel compound with positive allosteric modulator (PAM) activity on the γ-aminobutyric acid type B (GABAB) receptor, 25 mg, 1 x per day for 6 weeks

DRUGPlacebo

1 x per day for 6 weeks

Sponsors

Astellas Pharma Inc
CollaboratorINDUSTRY
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
21 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Be at least 21 years of age. 2. Meet the DSM-5 criteria for AUD of at least moderate severity. 3. Be seeking treatment for AUD and desire a reduction or cessation of drinking. 4. Be able to verbalize an understanding of the consent form, able to provide written informed consent, verbalize willingness to complete study procedures, able to understand written and oral instructions in English and able to complete the questionnaires required by the protocol. 5. Agree (if the subject is female and of child bearing potential) to use at least one of the following methods of birth control to at least 30 days post the last dose of study drug, unless she is surgically sterile, partner is surgically sterile or she is postmenopausal (one year): 1. oral contraceptives, 2. contraceptive sponge, 3. patch, 4. double barrier (diaphragm/spermicidal or condom/spermicidal), 5. intrauterine contraceptive system, 6. etonogestrel implant, 7. medroxyprogesterone acetate contraceptive injection, 8. true abstinence: when this is in line with the preferred and usual lifestyle of the participant, 9. and/or hormonal vaginal contraceptive ring. 6. Agree (if female) to not donate ova for at least 30 days following the last ASP8062 administration. 7. Agree (if male) to use acceptable methods of contraception if the male participant's partner could become pregnant from the time of the first administration of the study drug until 90 days following the final administration of the study drug. One of the following acceptable methods of contraception must be utilized: 1. surgical sterilization (vasectomy); 2. the participant's female partner uses oral contraceptives (combination estrogen/progesterone pills), injectable progesterone or sub dermal implants (commenced at least 14 days prior to study drug administration to the male participant) 3. the participant's female partner uses a medically prescribed topically applied transdermal contraceptive patch (commenced at least 14 days prior to study drug administration to the male participant); 4. the participant's female partner has undergone tubal ligation (female sterilization) or is postmenopausal (one year); 5. the participant's female partner has undergone placement of an intrauterine device or intrauterine system; and, 6. true abstinence: when this is in line with the preferred and usual lifestyle of the participant. 8. Agree (if male) to refrain from sperm donation from the randomization visit to at least 90 days after the last dose of study drug. 9. Be able to take oral medication and be willing to adhere to the medication regimen. 10. Complete all assessments required at screening and baseline. 11. Have a place to live in the 2 weeks prior to randomization and not be at risk that s/he will lose his/her housing in the next 2 months. Not anticipate any significant problems with transportation arrangements or available time to travel to the study site over the next 2 months. 12. Not have any unresolved legal problems that could jeopardize continuation or completion of the study. 13. Provide contact information of someone, such as a family member, spouse, or significant other, who may be able to contact the subject in case of a missed clinic appointment. 14. Have a BAC by breathalyzer equal to 0.000 when s/he signed the informed consent document. 15. If taking a medication for depression or anxiety, must have been taking a stable dose in the 2-months prior to randomization and plan to continue during the study. This includes drugs such as the following: 1. Selective serotonin reuptake inhibitors (SSRIs) 2. Dual uptake inhibitors 3. Serotonin-norepinephrine reuptake inhibitors (SNRIs) 4. Tricyclic antidepressants 16. Be someone who in the opinion of the investigator would be expected to complete the study protocol. 17. Agree to the schedule of visits, verbally acknowledge that s/he will be able to attend each scheduled visit, participate in phone visits and that s/he does not have any already scheduled events or a job that may substantially interfere with study participation. 18. Be willing to use a smartphone's video capability to record daily oral ingestion of tablets for the entire 6-week treatment period (subject's own smartphone or one provided by AiCure). 19. Have sitting (3 to 5 minutes) vital signs at the screening visit within the following limits: 1. Systolic blood pressure 90 to 140 mmHg 2. Diastolic blood pressure of 50 to 90 mmHg 3. Heart rate of 40 to 90 beats per minute

Exclusion criteria

1. Current (past 12 months) substance use disorder of at least moderate severity (4 or more criteria) for any psychoactive substance other than alcohol and nicotine, including sedatives and hypnotics, or cocaine use disorder of any severity as defined by DSM-5 criteria. 2. Be mandated by the court to obtain treatment for alcohol-dependence, or has probation or parole requirements that might interfere with study participation. 3. Be anyone who in the opinion of the investigator could not be safely withdrawn from alcohol without medical detoxification. 4. Have any of the following, based on DSM-5 criteria as assessed using theMINI: 1. Current or lifetime diagnosis of psychotic disorders, 2. Current bipolar disorder, 3. Current major depressive episode, 4. Current (past 3 months) eating disorder (anorexia or bulimia), or 5. Within past year diagnosis of panic disorder with or without agoraphobia. Contact site for additional

Design outcomes

Primary

MeasureTime frameDescription
Alcohol CravingWeek 3Strength of alcohol craving Visual Analogue Scale (VAS) score; min=0, max=20; higher scores = more craving (worse outcome)

Secondary

MeasureTime frameDescription
Number of Subjects Abstinent From AlcoholWeeks 3 to 6 of the treatment phaseNumber of subjects that have not drank alcohol during Weeks 3 to 6 of the treatment phase.
WHO 1-level Decrease in Alcohol ConsumptionWeeks 3 to 6 of the treatment phaseThe number of subjects experiencing at least a 1-level decrease in World Health Organization (WHO) levels of alcohol consumption from the level at baseline (the period including the 28 days before screening) to the level during Weeks 3 to 6 of the treatment phase. The WHO levels of average alcohol consumption per day are as follows: Males Females Low Risk 1 to 40g 1 to 20g Medium Risk 41 to 60g 21 to 40g High Risk 61 to 100g 41 to 60g Very High Risk 101+g 61+g where 14g = 1 SDU (WHO-2000). In computing the WHO alcohol consumption level, average drinks per day were used, computed as the sum of all drinks in the 28 day period divided by the number of days with non-missing drinking data in that period. Abstinent subjects were included in a separate Abstinent category.
WHO 2-level Decrease in Alcohol ConsumptionWeeks 3 to 6 of the treatment phase.The number of subjects experiencing at least a 2-level decrease in World Health Organization (WHO) levels of alcohol consumption from the level at baseline (the period including the 28 days before screening) to the level during Weeks 3 to 6 of the treatment phase. The WHO levels of average alcohol consumption per day are as follows: Males Females Low Risk 1 to 40g 1 to 20g Medium Risk 41 to 60g 21 to 40g High Risk 61 to 100g 41 to 60g Very High Risk 101+g 61+g where 14g = 1 SDU (WHO-2000). In computing the WHO alcohol consumption level, average drinks per day were used, computed as the sum of all drinks in the 28 day period divided by the number of days with non-missing drinking data in that period. Abstinent subjects were included in a separate Abstinent category.
Percentage of Days AbstinentWeeks 3 to 6 of the treatment phaseThe percentage of days abstinent from drinking alcohol
Percentage of Heavy Drinking DaysWeeks 3 to 6 of the treatment phasePercentage of heavy drinking days where a heavy drinking day is 4 or more drinks on a day for women or 5 or more drinks on a day for men.
Drinks Per WeekWeeks 3 to 6 of the treatment phaseThe number of drinks consumed per week
Number of Subjects With no Heavy Drinking DaysWeeks 3 to 6 of the treatment phaseNumber of subjects that have no heavy drinking days during weeks 3 to 6 of the treatment phase. A heavy drinking day is 4 or more drinks per drinking day for women and 5 or more drinks per drinking day for men.
Penn Alcohol Craving Scale (PACS)Weeks 3 to 6 during the treatment phase, averagedThe amount of craving; higher numbers indicate more craving. There are 5 items each on a 0 to 6 scale. Items are summed to get to the total craving, resulting in scores having a min=0 and max=30.
Pittsburgh Sleep Quality Index (PSQI)Weeks 4 & 6 of the treatment phase, averagedA measure of sleep quality; the PSQI includes a scoring key for calculating a patient's seven subscores, each of which can range from 0 to 3. The subscores are tallied, yielding a global score that can range from 0 to 21. A global score of 5 or more indicates poor sleep quality; the higher the score, the worse the quality.
Patient-Reported Outcomes Measurement Information System (PROMIS) Alcohol Related Negative ConsequencesWeek 6 of the treatment phaseA measure of alcohol-related negative consequences. There are 7 items scored on a 1 to 7 scale (a higher score indicative greater frequency of negative consequences). The items are summed and converted to a T-score to create a total score. The T-scores range from 0 to 100 (the population mean = 50 and standard deviation = 10). Higher T-scores are indicative of more negative consequences (worse outcome).
Profile of Mood States (POMS) Total DisturbanceWeeks 4 & 6 of the treatment phase, averagedA measure of total mood disturbance. Total mood disturbance is the sum of depression, anger, fatigue, confusion, and tension subscales subtracting the vigor subscale items. The range of possible scores is from -32 to 200 with higher scores indicating greater mood disturbance.
Cigarettes Smoked Per Day (Among Smokers)Weeks 3 to 6 of the treatment phaseThe number of cigarettes smoked per day, computed among individuals who smoked at baseline
Drinks Per Drinking DayWeeks 3 to 6 of the treatment phaseThe number of drinks consumed on days where participants drank

Countries

United States

Participant flow

Participants by arm

ArmCount
ASP8062 (25 mg Once Daily)
ASP8062: ASP8062 is a novel compound with positive allosteric modulator (PAM) activity on the γ-aminobutyric acid type B (GABAB) receptor, 25 mg, 1 x per day for 6 weeks
28
Matching Placebo
Placebo: 1 x per day for 6 weeks
26
Total54

Baseline characteristics

CharacteristicASP8062 (25 mg Once Daily)Matching PlaceboTotal
Age, Continuous42.4 years
STANDARD_DEVIATION 9.8
45.4 years
STANDARD_DEVIATION 10
43.8 years
STANDARD_DEVIATION 9.9
Drinks per week53.5 Standard drinks of alcohol/week
STANDARD_DEVIATION 22.1
52.3 Standard drinks of alcohol/week
STANDARD_DEVIATION 20.1
52.9 Standard drinks of alcohol/week
STANDARD_DEVIATION 21
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants2 Participants2 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
5 Participants3 Participants8 Participants
Race (NIH/OMB)
More than one race
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants1 Participants4 Participants
Race (NIH/OMB)
White
18 Participants20 Participants38 Participants
Region of Enrollment
United States
28 participants26 participants54 participants
Sex: Female, Male
Female
12 Participants8 Participants20 Participants
Sex: Female, Male
Male
16 Participants18 Participants34 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 300 / 30
other
Total, other adverse events
24 / 3022 / 30
serious
Total, serious adverse events
0 / 300 / 30

Outcome results

Primary

Alcohol Craving

Strength of alcohol craving Visual Analogue Scale (VAS) score; min=0, max=20; higher scores = more craving (worse outcome)

Time frame: Week 3

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ASP8062 (25 mg Once Daily)Alcohol Craving6.44 score on a scaleStandard Error 1.09
Matching PlaceboAlcohol Craving6.26 score on a scaleStandard Error 1.13
p-value: 0.784ANCOVA
Secondary

Cigarettes Smoked Per Day (Among Smokers)

The number of cigarettes smoked per day, computed among individuals who smoked at baseline

Time frame: Weeks 3 to 6 of the treatment phase

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ASP8062 (25 mg Once Daily)Cigarettes Smoked Per Day (Among Smokers)10.3 cigarettes smoked per dayStandard Error 1.2
Matching PlaceboCigarettes Smoked Per Day (Among Smokers)10.7 cigarettes smoked per dayStandard Error 2
Secondary

Drinks Per Drinking Day

The number of drinks consumed on days where participants drank

Time frame: Weeks 3 to 6 of the treatment phase

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ASP8062 (25 mg Once Daily)Drinks Per Drinking Day5.7 standard drinks of alcohol/drinking dayStandard Error 0.5
Matching PlaceboDrinks Per Drinking Day5.5 standard drinks of alcohol/drinking dayStandard Error 0.5
Secondary

Drinks Per Week

The number of drinks consumed per week

Time frame: Weeks 3 to 6 of the treatment phase

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ASP8062 (25 mg Once Daily)Drinks Per Week28.2 standard drinks of alcohol/weekStandard Error 4
Matching PlaceboDrinks Per Week23.7 standard drinks of alcohol/weekStandard Error 4.1
Secondary

Number of Subjects Abstinent From Alcohol

Number of subjects that have not drank alcohol during Weeks 3 to 6 of the treatment phase.

Time frame: Weeks 3 to 6 of the treatment phase

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ASP8062 (25 mg Once Daily)Number of Subjects Abstinent From Alcohol0 Participants
Matching PlaceboNumber of Subjects Abstinent From Alcohol1 Participants
Secondary

Number of Subjects With no Heavy Drinking Days

Number of subjects that have no heavy drinking days during weeks 3 to 6 of the treatment phase. A heavy drinking day is 4 or more drinks per drinking day for women and 5 or more drinks per drinking day for men.

Time frame: Weeks 3 to 6 of the treatment phase

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ASP8062 (25 mg Once Daily)Number of Subjects With no Heavy Drinking Days2 Participants
Matching PlaceboNumber of Subjects With no Heavy Drinking Days1 Participants
Secondary

Patient-Reported Outcomes Measurement Information System (PROMIS) Alcohol Related Negative Consequences

A measure of alcohol-related negative consequences. There are 7 items scored on a 1 to 7 scale (a higher score indicative greater frequency of negative consequences). The items are summed and converted to a T-score to create a total score. The T-scores range from 0 to 100 (the population mean = 50 and standard deviation = 10). Higher T-scores are indicative of more negative consequences (worse outcome).

Time frame: Week 6 of the treatment phase

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ASP8062 (25 mg Once Daily)Patient-Reported Outcomes Measurement Information System (PROMIS) Alcohol Related Negative Consequences50.2 T-scoreStandard Error 1
Matching PlaceboPatient-Reported Outcomes Measurement Information System (PROMIS) Alcohol Related Negative Consequences47.8 T-scoreStandard Error 1.1
Secondary

Penn Alcohol Craving Scale (PACS)

The amount of craving; higher numbers indicate more craving. There are 5 items each on a 0 to 6 scale. Items are summed to get to the total craving, resulting in scores having a min=0 and max=30.

Time frame: Weeks 3 to 6 during the treatment phase, averaged

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ASP8062 (25 mg Once Daily)Penn Alcohol Craving Scale (PACS)13.5 score on a scaleStandard Error 0.9
Matching PlaceboPenn Alcohol Craving Scale (PACS)13.0 score on a scaleStandard Error 1
Secondary

Percentage of Days Abstinent

The percentage of days abstinent from drinking alcohol

Time frame: Weeks 3 to 6 of the treatment phase

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ASP8062 (25 mg Once Daily)Percentage of Days Abstinent29.9 percentage of days abstinentStandard Error 5.4
Matching PlaceboPercentage of Days Abstinent39.3 percentage of days abstinentStandard Error 5.6
Secondary

Percentage of Heavy Drinking Days

Percentage of heavy drinking days where a heavy drinking day is 4 or more drinks on a day for women or 5 or more drinks on a day for men.

Time frame: Weeks 3 to 6 of the treatment phase

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ASP8062 (25 mg Once Daily)Percentage of Heavy Drinking Days42.4 percentage of heavy drinking daysStandard Error 6.1
Matching PlaceboPercentage of Heavy Drinking Days35.9 percentage of heavy drinking daysStandard Error 6.3
Secondary

Pittsburgh Sleep Quality Index (PSQI)

A measure of sleep quality; the PSQI includes a scoring key for calculating a patient's seven subscores, each of which can range from 0 to 3. The subscores are tallied, yielding a global score that can range from 0 to 21. A global score of 5 or more indicates poor sleep quality; the higher the score, the worse the quality.

Time frame: Weeks 4 & 6 of the treatment phase, averaged

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ASP8062 (25 mg Once Daily)Pittsburgh Sleep Quality Index (PSQI)5.7 score on a scaleStandard Error 0.4
Matching PlaceboPittsburgh Sleep Quality Index (PSQI)6.1 score on a scaleStandard Error 0.4
Secondary

Profile of Mood States (POMS) Total Disturbance

A measure of total mood disturbance. Total mood disturbance is the sum of depression, anger, fatigue, confusion, and tension subscales subtracting the vigor subscale items. The range of possible scores is from -32 to 200 with higher scores indicating greater mood disturbance.

Time frame: Weeks 4 & 6 of the treatment phase, averaged

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ASP8062 (25 mg Once Daily)Profile of Mood States (POMS) Total Disturbance5.0 score on a scaleStandard Error 3.6
Matching PlaceboProfile of Mood States (POMS) Total Disturbance0.5 score on a scaleStandard Error 3.8
Secondary

WHO 1-level Decrease in Alcohol Consumption

The number of subjects experiencing at least a 1-level decrease in World Health Organization (WHO) levels of alcohol consumption from the level at baseline (the period including the 28 days before screening) to the level during Weeks 3 to 6 of the treatment phase. The WHO levels of average alcohol consumption per day are as follows: Males Females Low Risk 1 to 40g 1 to 20g Medium Risk 41 to 60g 21 to 40g High Risk 61 to 100g 41 to 60g Very High Risk 101+g 61+g where 14g = 1 SDU (WHO-2000). In computing the WHO alcohol consumption level, average drinks per day were used, computed as the sum of all drinks in the 28 day period divided by the number of days with non-missing drinking data in that period. Abstinent subjects were included in a separate Abstinent category.

Time frame: Weeks 3 to 6 of the treatment phase

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ASP8062 (25 mg Once Daily)WHO 1-level Decrease in Alcohol Consumption19 Participants
Matching PlaceboWHO 1-level Decrease in Alcohol Consumption18 Participants
Secondary

WHO 2-level Decrease in Alcohol Consumption

The number of subjects experiencing at least a 2-level decrease in World Health Organization (WHO) levels of alcohol consumption from the level at baseline (the period including the 28 days before screening) to the level during Weeks 3 to 6 of the treatment phase. The WHO levels of average alcohol consumption per day are as follows: Males Females Low Risk 1 to 40g 1 to 20g Medium Risk 41 to 60g 21 to 40g High Risk 61 to 100g 41 to 60g Very High Risk 101+g 61+g where 14g = 1 SDU (WHO-2000). In computing the WHO alcohol consumption level, average drinks per day were used, computed as the sum of all drinks in the 28 day period divided by the number of days with non-missing drinking data in that period. Abstinent subjects were included in a separate Abstinent category.

Time frame: Weeks 3 to 6 of the treatment phase.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ASP8062 (25 mg Once Daily)WHO 2-level Decrease in Alcohol Consumption8 Participants
Matching PlaceboWHO 2-level Decrease in Alcohol Consumption11 Participants

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