TABLE 2.
Variable | Atomoxetine | Placebo | Test | p-value | ||
---|---|---|---|---|---|---|
Marijuana Dependence | ||||||
Primary Outcome | Mean | SE | Mean | SE | ||
Estimated (LSMean) Week 12 Self-Reported Use{b} | 2.17 | 0.34 | 1.84 | 0.34 | F Test (1, 35) | 0.44 |
Secondary Efficacy Outcomes | ||||||
Self-reported | Mean | SD | Mean | SD | ||
% Days reporting use{a} | 60.1% | 31.5% | 68.1% | 31.3% | W ilcoxon Rank Sum | 0.46 |
N | % | N | % | |||
Reduced days using relative to baseline | 16 | 84.2% | 13 | 68.4% | Fisher's Exact | 0.45 |
Reduced amount using per using day relative to baseline | 14 | 73.7% | 16 | 84.2% | Fisher's Exact | 0.69 |
Urine Drug Screens | ||||||
N | % | N | % | |||
% of Samples Positive, as observed{c} | 125 | 85.6% | 105 | 83.3% | N/A | N/A |
GEE Model-based estimate, % (SE) | 87.3% | 6.5% | 85.3% | 6.3% | GEE Wald Test | 0.83 |
Clinician Global Impression | Mean | SD | Mean | SD | ||
Improvement Rating, LOCF | 2.84 | 1.12 | 2.95 | 1.08 | W ilcoxon Rank Sum | 0.65 |
Change in severity rating (last obs. - baseline) | −1.28 | 1.23 | −1.33 | 1.46 | W ilcoxon Rank Sum | 1.00 |
Mean | SD | Mean | SD | |||
Marijuana Craving Questionnaire, change from baseline | −13.39 | 13.28 | −17.05 | 15.97 | W ilcoxon Rank Sum | 0.56 |
ADHD | Mean | SD | Mean | SD | ||
WRAADS, change from baseline & longitudinal | −15.05 | 10.96 | −11.05 | 7.59 | W ilcoxon Rank Sum | 0.23 |
CAARS-SELF, change from baseline & longitudinal | −12.65 | 7.60 | −10.16 | 7.73 | W ilcoxon Rank Sum | 0.34 |
CGI Improvement, LOCF | 2.63 | 0.68 | 3.26 | 0.93 | W ilcoxon Rank Sum | 0.02 |
CGI Change in severity rating (last obs. - baseline) | −1.22 | 0.94 | −0.89 | 1.28 | W ilcoxon Rank Sum | 0.21 |
For measures modeled longitudinally, the beta coefficient for the treatment by time interaction is reported.
Estimated mean is for the amount using per using day over the last seven days of self-reported use (last observation carried forward) from an ANCOVA model that adjusted for amount using per using day during the 90 days prior to the study.
A total of 272 UDS were collected, n=146 for the atomoxetine group, n=126