Study register · detail
Mixed
GRADE
Moderate
3 citations
Samplen = 28 Pat.
Duration12 weeks
ControlPlacebo
EndpointAISRS
Blindingdoppelblind
DesignRCT
Key finding
No significant difference in ADHD symptom reduction or cannabis abstinence, but significant reduction in weekly cannabis use days under MAS-ER versus placebo.
Summary
12-week double-blind pilot RCT of MAS-ER 80 mg vs. placebo in comorbid ADHD and cannabis use disorder (CUD), n=28. No significant difference in ≥30% ADHD symptom reduction (MAS-ER 83,3% vs. placebo 71,4%; p=0.65) or cannabis abstinence in the last 2 weeks (MAS-ER 15,4% vs. placebo 0%; p=0.27). MAS-ER showed significant reduction in weekly cannabis use days over time vs. placebo (p<0.0001). Medication well tolerated.
P
PopulationAdults with comorbid ADHD and cannabis use disorder (CUD), n=28
I
InterventionExtended-Release Mixed Amphetamine Salts (MAS-ER) 80 mg/day orally
C
ControlPlacebo
O
OutcomeNo significant difference in ADHD symptom reduction (MAS-ER 83,3% vs. placebo 71,4%; p=0,65) or cannabis abstinence (15,4% vs. 0%; p=0,27); significant reduction in weekly cannabis use days under MAS-ER vs. placebo (p<0,0001)
Confidence in the evidence
Moderate
The third of four GRADE levels, the effect estimate is probably reliable.
Downgraded for
Imprecision
Quality profile
Sample size
★★★★★
Blinding
Double-blind
Effect size
Mixed
Citations / year
★★★★★
Authors
Share
Abstract
Objective: To determine if treatment of co-occurring adult ADHD and Cannabis Use Disorder (CUD) with extended-release mixed amphetamine salts (MAS-ER) would be effective at improving ADHD symptoms and promoting abstinence.
Method: A 12-week randomized, double-blind, two-arm pilot feasibility trial of adults with comorbid ADHD and CUD (n = 28) comparing MAS-ER (80 mg) to placebo. Main outcomes:
Adhd: >/=30% symptom reduction, measured by the Adult ADHD Investigator Symptom Rating Scale (AISRS).
Cud: Abstinence during last 2 observed weeks of maintenance phase.
Results: Overall, medication was well-tolerated. There was no significant difference in ADHD symptom reduction (MAS-ER: 83.3%; placebo: 71.4%; p = .65) or cannabis abstinence (MAS-ER: 15.4%; placebo: 0%; p = .27). MAS-ER group showed a significant decrease in weekly cannabis use days over time compared to placebo (p < .0001).
Conclusions: MAS-ER was generally well-tolerated. The small sample size precluded a determination of MAS-ER's superiority reducing ADHD symptoms or promoting abstinence. Notably, MAS-ER significantly reduced weekly days of use over time.
The impediment to action advances action.