A Randomized, Double-Blind, Controlled Clinical Trial of Omega-3 Fatty Acids and Inositol as Monotherapies and in Combination for the Treatment of Pediatric Bipolar Spectrum Disorder in Children Age 5-12.

Objectives: The aim of this study was to assess the efficacy and tolerability of omega-3 fatty acids (FAs) and inositol alone and in combination for the treatment of pediatric bipolar (BP) spectrum disorder in young children. Methods: Participants were male and female children ages 5-12 meeting DSM-IV diagnostic criteria for a BP spectrum disorder and displaying mixed, manic, or hypomanic symptoms without psychotic features at the time of evaluation. Results: Participants concomitantly taking psychotropic medication were excluded from efficacy analyses. There were significant reductions in YMRS and HDRS mean scores in the inositol and combination treatment groups (all p < 0.05) and in CDRS mean scores in the combination treatment group (p < 0.001), with the largest changes seen in the combination group. Those receiving the combination treatment had the highest rates of antimanic and antidepressant response. The odds ratios for the combination group compared to the omega-3 FAs and inositol groups were clinically meaningful (ORs ≥2) for 50% improvement on the YMRS, normalization of the YMRS (score <12) (vs. inositol group only), 50% improvement on the HDRS, 50% improvement on CDRS (vs. omega-3 FAs group only), and CGI-I Mania, CGI-I MDD, and CGI-I Anxiety scores <2. Conclusion: The antimanic and antidepressant effects of the combination treatment of omega-3 FAs and inositol were consistently superior to either treatment used alone. This combination may offer a safe and effective alternative or augmenting treatment for youth with BP spectrum disorder, but more work is needed to confirm the statistical significance of this finding.

Does L-Methylfolate Supplement Methylphenidate Pharmacotherapy in Attention-Deficit/Hyperactivity Disorder?: Evidence of Lack of Benefit From a Double-Blind, Placebo-Controlled, Randomized Clinical Trial.

PURPOSE/BACKGROUND: Interventions for attention-deficit/hyperactivity disorder (ADHD) may be inadequate for some patients. There is evidence that supplementation with L-methylfolate augments antidepressant agent effects and thus might also augment ADHD treatment effects by a common catecholaminergic mechanism. METHODS: Forty-four adults with Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition diagnosis of ADHD participated in a randomized, double-blind, placebo-controlled, 12-week trial of 15 mg of L-methylfolate in combination with osmotic-release oral system methylphenidate. Osmotic-release oral system methylphenidate was dose optimized over the first 6 weeks. We evaluated the effects on ADHD symptoms, self-report on the Behavior Rating Inventory of Executive Function of executive function, methylphenidate dosing, neuropsychological test measures, the Adult ADHD Self-report scale, emotional dysregulation, social adjustment, and work productivity, as well as moderating effects of body mass index, autoantibodies to folate receptors, and select genetic polymorphisms. RESULTS: L-Methylfolate was well tolerated, with no significant effect over placebo except improvement from abnormal measures on the mean adaptive dimension of the ASR scale (χ = 4.36, P = 0.04). Methylphenidate dosing was significantly higher in individuals on L-methylfolate over time (χ = 7.35, P = 0.007). Exploratory analyses suggested that variation in a guanosine triphosphate cyclohydrolase gene predicted association with higher doses of methylphenidate (P < 0.001). CONCLUSIONS: L-Methylfolate was associated with no change in efficacy on measures relevant to neuropsychiatric function in adults with ADHD, other than suggestion of reduced efficacy of methylphenidate. Further investigation would be required to confirm this effect and its mechanism and the genotype prediction of effects on dosing.