Guanfacine to Reduce Relapse Risk in Women With Alcohol Use Disorder (AUD)

Percentage of days abstinent across the 12-week trial was calculated using the Timeline follow Back.

Percentage of heavy drinking days across the 12-week trial was calculated using the Timeline follow Back.

Urine screening will be conducted twice per week across the trial.

The Anxiety subscale of the Profile of Mood States (POMS) was administered to assess anxiety. The subscale comprises 9 adjectives that describe anxiety-related feelings, and participants are required to rate the extent to which they are experiencing each feeling at that moment, from 0= not at all; 1= a little; 2= moderately; 3= quite a bit; 4= extremely. Possible scores range from 0 to 36, with higher scores representing higher levels of anxiety. Anxiety ratings were collected two times per week across twelve weeks (24 time-points). Each time-point represented change from baseline anxiety. The calculation here represents mean change from baseline values across the 12 weeks, where minus scores represent lower mean anxiety compared with baseline.

The Depression subscale of the Profile of Mood States (POMS) was administered to assess depression. The subscale comprises 15 adjectives that describe depression-related feelings, and participants are required to rate the extent to which they are experiencing each feeling at that moment, from 0= not at all; 1= a little; 2= moderately; 3= quite a bit; 4= extremely. Possible scores range from 0 to 60, with higher scores representing higher levels of depression. Depression ratings were collected two times per week across twelve weeks (24 time-points). Each time-point represented change from baseline depression. The calculation here represents mean change from baseline values across the 12 weeks, where minus scores represent lower mean depression compared with baseline.

The desire for using alcohol was assessed using a 10-point visual analog scale (VAS) in which 1 = 'not at all' and 10 = 'extremely high'. Alcohol craving ratings were collected two times per week across twelve weeks (24 time-points). Each time-point represented change from baseline alcohol craving. The calculation here represents mean change from baseline values across the 12 weeks, where minus scores represent lower mean alcohol craving compared with baseline.

We used the Impulse Control Difficulties subscale (IMPULSE) of the Difficulties in Emotion Regulation Scale (DERS) to assess changes in impulse control across the trial. The DERS was administered two times per week, and the IMPULSE subscale comprised 6 items with a potential score range of 6 to 30 with higher scores representing greater difficulties in impulse control. Each time-point represents change from baseline impulse control difficulties. The calculation here represents mean change from baseline values across the 12 weeks, where minus values represent less difficulties in impulse control compared with baseline.

We used the Difficulties in Engaging in Goal-Directed Behavior (GOALS) subscale of the Difficulties in Emotion Regulation Scale (DERS) to assess changes in goal-directed behavior across the trial. The DERS was administered two times per week (24 time-points) and the GOALS subscale comprised 5 items with a potential score range of 5 to 25 with higher scores representing greater difficulties in engaging in goal-directed behavior. Each time-point represented change from baseline GOALS. The calculation here represents mean change from baseline values across the 12 weeks, where minus values represent less difficulties in engaging in goal-directed behavior compared with baseline.

We used the Lack of Emotional Clarity subscale (CLARITY) of the Difficulties in Emotion Regulation Scale (DERS) to assess changes in emotional clarity across the trial. The DERS was administered two times per week, and the CLARITY subscale comprised 5 items with a potential score range of 5 to 25 with higher scores representing greater difficulties in emotional clarity. Each time-point represents change from baseline difficulties in emotional clarity. The calculation here represents mean change from baseline values across the 12 weeks, where minus values represent less difficulties in emotional clarity compared with baseline.

We used the Limited Access to Emotion Regulation Strategies subscale (STRATEGIES) of the Difficulties in Emotion Regulation Scale (DERS) to assess changes in ability to access emotion regulation strategies across the trial. The DERS was administered two times per week, and the STRATEGIES subscale comprised 8 items with a potential score range of 8 to 40 with higher scores representing greater difficulties in accessing emotion regulation strategies. Each time-point represents change from baseline STRATEGIES. The calculation here represents mean change from baseline values across the 12 weeks, where minus values represent less difficulties in accessing emotion regulation strategies compared with baseline.

We used the Lack of Emotional Awareness subscale (AWARENESS) of the Difficulties in Emotion Regulation Scale (DERS) to assess changes in emotional awareness across the trial. The DERS was administered two times per week, and the AWARENESS subscale comprised of 6 items with a potential score range of 6 to 30 with higher scores representing greater a greater lack of emotional awareness. Each time-point represents change from baseline emotional awareness. The calculation here represents mean change from baseline values across the 12 weeks, where minus values represent less difficulties in emotional awareness compared with baseline.

We used the Non-Acceptance of Emotional Responses subscale (NON-ACCEPTANCE) of the Difficulties in Emotion Regulation Scale (DERS) to assess changes in non-acceptance of emotional responses across the trial. The DERS was administered two times per week, and the NON-ACCEPTANCE subscale comprised 6 items with a potential score range of 6 to 30 with higher scores representing greater difficulties in acceptance of emotional response. Each time-point represents change from baseline NON-ACCEPTANCE. The calculation here represents mean change from baseline values across the 12 weeks, where minus values represent less difficulties regarding non-acceptance of emotional responses compared with baseline.

We used the Total score of the Difficulties in Emotion Regulation Scale (DERS) to assess changes in overall emotion regulation across the trial. The DERS was administered two times per week, and comprised 41 items with a potential score range of 41 to 164 with higher scores representing greater difficulties in emotion regulation. Each time-point represents change from baseline emotion regulation difficulties. The calculation here represents mean change from baseline values across the 12 weeks, where minus values represent less difficulties regarding emotion regulation compared with baseline.