Table 38Summary of findings and strength of evidence for comparative effectiveness of acamprosate and naltrexone

InterventionOutcomeN studies; N subjectsaResults Effect Size (95% CI)bStrength of Evidence
ACA vs. NTXReturn to any drinking3; 800RD: 0.02 (-0.03 to 0.08)Moderate
Return to heavy drinking4; 1,141RD: 0.01 (-0.05 to 0.06)Moderate
Percentage drinking days2; 720WMD: -2.98 (-13.4 to 7.5)Low

ACA = acamprosate; CI = confidence interval; N = number; NTX = naltrexone; RD = risk difference; WMD = weighted mean difference.

Note: Table only includes comparisons of medications with evidence of efficacy (as determined in KQ 1) and with sufficient data for synthesis. We did not include rows in this table for outcomes that we graded as having insufficient SOE (percentage heavy drinking days, drinks per drinking day, accidents or injuries, quality of life or function, and mortality).

a

Includes only studies rated as low or medium risk of bias included in the main analyses; these numbers do not include studies rated as high or unclear risk of bias that were included in sensitivity analyses.

b

Negative effect sizes favor acamprosate over naltrexone.

From: Discussion

Cover of Pharmacotherapy for Adults With Alcohol-Use Disorders in Outpatient Settings
Pharmacotherapy for Adults With Alcohol-Use Disorders in Outpatient Settings [Internet].
Comparative Effectiveness Reviews, No. 134.
Jonas DE, Amick HR, Feltner C, et al.

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