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A Clinical Trial to Evaluate the Safety and Efficacy of ADX-629 in in Subjects With Elevated Ethanol Levels

A Double-Blind Clinical Trial to Assess the Interaction Between ADX-629 and Ethanol While Exploring the Safety, Tolerability, and Activity of ADX-629 in Subjects With Elevated Ethanol Levels

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05487404
Enrollment
26
Registered
2022-08-04
Start date
2021-11-15
Completion date
2022-05-29
Last updated
2025-02-28

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

Conditions

Ethanol Intoxication

Keywords

Aldeyra, ADX-629

Brief summary

A Double-Blind Trial to Assess the Interaction Between ADX-629 and Ethanol While Exploring the Safety, Tolerability, and Activity of ADX-629 in Subjects With Elevated Ethanol Levels

Interventions

3 oral doses of ADX-629 600 milligrams

DRUGPlacebo

3 oral doses of placebo

Sponsors

Aldeyra Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
21 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

1. Male or female subjects between the ages of 21 and 65 years, inclusive, at Screening; 2. Subjects with the ability to obtain transportation to and from the study site; 3. Subjects who agree to abstain from consumption of non-study alcohol during the study.

Exclusion criteria

1. Subjects with abnormal laboratory values of clinical significance, at the discretion of the Investigator, at Screening; 2. Subjects with nicotine product use within 14 days prior to Screening until the end of the study; 3. Subjects with any history of or current alcohol or other substance use disorder diagnosed according to the Diagnostic and Statistical Manual of Mental Disorders Fifth Edition; 4. Subjects with a positive urine drug screen or breath alcohol test at Screening or Check-In (both treatment periods).

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects With Serious Adverse EventsThe safety assessment period was approximately two days for each treatment period.Safety was assessed through serious adverse event collection.

Secondary

MeasureTime frameDescription
Change From Baseline of Dermal FlushingThe efficacy assessment period was approximately two days for each treatment period. Baseline was the last measurement prior to each treatment period.Dermal flushing was assessed on a 0 to 100 scale (0 = none, 100 = extremely severe). Change from baseline was analyzed using mixed model for repeated measures (MMRM), with baseline and emesis volume as covariates, and sequence, period, time point, and treatment as factors.
Change From Baseline for Romberg TestThe efficacy assessment period was approximately two days for each treatment period. Baseline was the last measurement prior to each treatment period.Romberg Test was assessed for up to 60 seconds. Subjects stood with feet together and eyes closed, and the length of time the subject was able to stand without movement was recorded. Change from baseline was analyzed using MMRM, with baseline, number of bodyweight-standardized drinks consumed, and blood alcohol concentration as covariates, and sequence, period, time point, treatment, and the interaction of treatment by time point as factors.

Countries

United States

Participant flow

Pre-assignment details

Twenty-six subjects were randomized in a crossover design. On Day 1 for each treatment period, subjects were dosed followed by ethanol consumption. Approximately three hours later, subjects were administered a second dose followed by continued ethanol consumption to reach a target blood alcohol concentration of 0.14 g/100mL, at which time assessments were conducted. On Day 2, subjects were dosed once and assessments were completed approximately two hours and five hours after dosing.

Participants by arm

ArmCount
ADX-629 First, Then Placebo
Subjects received three oral doses of ADX-629 600mg over two consecutive days, followed by a fourteen-day washout. Subjects then received three oral doses of placebo over two consecutive days.
12
Placebo First, Then ADX-629
Subjects received three oral doses of placebo over two consecutive days, followed by a fourteen-day washout. Subjects then received three oral doses of ADX-629 600mg over two consecutive days.
14
Total26

Baseline characteristics

CharacteristicADX-629 First, Then PlaceboPlacebo First, Then ADX-629Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
12 Participants14 Participants26 Participants
Age, Continuous44.1 years
STANDARD_DEVIATION 9
41.1 years
STANDARD_DEVIATION 12.4
42.5 years
STANDARD_DEVIATION 10.8
Body Mass Index26.4 kg/m2
STANDARD_DEVIATION 3
26.6 kg/m2
STANDARD_DEVIATION 3.5
26.5 kg/m2
STANDARD_DEVIATION 3.2
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
3 Participants7 Participants10 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
9 Participants6 Participants15 Participants
Sex: Female, Male
Female
4 Participants3 Participants7 Participants
Sex: Female, Male
Male
8 Participants11 Participants19 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 230 / 25
other
Total, other adverse events
15 / 2321 / 25
serious
Total, serious adverse events
0 / 230 / 25

Outcome results

Primary

Number of Subjects With Serious Adverse Events

Safety was assessed through serious adverse event collection.

Time frame: The safety assessment period was approximately two days for each treatment period.

Population: Safety Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ADX-629Number of Subjects With Serious Adverse Events0 Participants
PlaceboNumber of Subjects With Serious Adverse Events0 Participants
Secondary

Change From Baseline for Romberg Test

Romberg Test was assessed for up to 60 seconds. Subjects stood with feet together and eyes closed, and the length of time the subject was able to stand without movement was recorded. Change from baseline was analyzed using MMRM, with baseline, number of bodyweight-standardized drinks consumed, and blood alcohol concentration as covariates, and sequence, period, time point, treatment, and the interaction of treatment by time point as factors.

Time frame: The efficacy assessment period was approximately two days for each treatment period. Baseline was the last measurement prior to each treatment period.

Population: Intent-to-treat population

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ADX-629Change From Baseline for Romberg Test-0.04 secondsStandard Error 1.25
PlaceboChange From Baseline for Romberg Test-1.42 secondsStandard Error 1.2
Secondary

Change From Baseline of Dermal Flushing

Dermal flushing was assessed on a 0 to 100 scale (0 = none, 100 = extremely severe). Change from baseline was analyzed using mixed model for repeated measures (MMRM), with baseline and emesis volume as covariates, and sequence, period, time point, and treatment as factors.

Time frame: The efficacy assessment period was approximately two days for each treatment period. Baseline was the last measurement prior to each treatment period.

Population: Intent-to-treat population

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
ADX-629Change From Baseline of Dermal Flushing-4.02 score on a scaleStandard Error 0.44
PlaceboChange From Baseline of Dermal Flushing1.15 score on a scaleStandard Error 1.37

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