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Home » Does Abilify cause more weight gain than Seroquel?

Does Abilify cause more weight gain than Seroquel?

February 3, 2021
From The Carlat Psychiatry Report
Issue Links: Learning Objectives | Editorial Information | PDF of Issue
IN BRIEF

Last October, we published a table on mood stabilizer side effects that raised an understandable alarm among astute readers. The table, which was based on a 2020 meta-analysis, suggested that aripiprazole (Abilify) has a greater chance of causing weight gain than quetiapine (Seroquel). What the table failed to specify was that the figures were based on long-term maintenance studies. In the short-term trials, quetiapine ranked right behind olanzapine for its propensity to increase BMI, while aripiprazole had a non-significant effect.

Mood stabilizers are intended for long-term use, which is why we decided to focus on the long-term data. However, there are far more short-term trials than long-term ones, so we are less confident in these results. In this meta-analysis, the difference between aripiprazole and quetiapine was based on only 3 bipolar maintenance trials (n = 773). Things become more certain when we expand that population to all psychiatric patients, as Maarten Bak and colleagues did in 2014 (Bak M et al, PLoS One 2014;9(4):e94112). Pulling together 11 trials that lasted at least 9 months, Bak found similar rates of weight gain for aripiprazole and quetiapine, both in terms of the rate of clinically significant (> 7%) weight gain (1 in 5 for both meds, compared to 1 in 25 for placebo) and the absolute increase in BMI.

Look out for long-term weight gain in your patients. Most of what we know about this side effect comes from short-term trials, and those may not tell the whole story.

 

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General Psychiatry
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Issue Date: February 3, 2021
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Table Of Contents
CME Post-Test - Stopping Psych Meds Part 1, TCPR, February 2021
How to Come Off a Psych Med Part 1: Antipsychotics
Stimulants and Creativity
Does Abilify cause more weight gain than Seroquel?
Are SSRIs Associated With Increased Rates of Violence?
How to Switch Antipsychotics
Roundup
Buspirone: Still Effective After All These Years?
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