Treating Bipolar Depression in an Adolescent

July 9, 2019 · Posted in Potential Treatments 

At the 2019 meeting of the International Society for Bipolar Disorders, researcher Ben Goldstein discussed a case of a 15-year-old with bipolar depression and his recommended treatments for the adolescent. Goldstein endorsed the use of an atypical antipsychotic such as lurasidone, and perhaps also quetiapine. Goldstein noted 2015 findings from researcher Robert Findling that lamotrigine was significantly more effective than placebo in adolescents 13–18 years old, but was not effective in those aged 10–12.

(In adults, researcher John Geddes and colleagues found that in patients with an inadequate antidepressant response to quetiapine, the addition of lamotrigine was more effective than adding a placebo, both acutely and in long-term follow-up. The only caveat was that lamotrigine was less effective in those who were also being treated with folate.)

Editor’s Note: Some other treatments could augment the effects of the regimen proposed by Goldstein, including lithium and the antioxidant N-acetylcysteine, which, it should be noted, takes more than eight weeks to become effective. Vitamin D3 could also be considered, as it is often low in children with psychiatric disorders. One treatment that went unmentioned at the meeting was repeated transcranial magnetic stimulation, or rTMS, which is effective and well-tolerated in adolescents with depression.

For patients with more rapidly cycling bipolar disorder and only partial response to medications, the combination of the ‘three Ls’ (lurasidone, lamotrigine, and lithium) could have considerable appeal, given that each drug is from a different class of medications, has a different mechanism of action, targets a different mood phase, and is relatively well-tolerated both alone and in combination with other drugs.

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