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Abstract Title:

Probiotics for Gastrointestinal Symptoms and Quality of Life in Autism: A Placebo-Controlled Pilot Trial.

Abstract Source:

J Child Adolesc Psychopharmacol. 2019 11 ;29(9):659-669. Epub 2019 Aug 30. PMID: 31478755

Abstract Author(s):

L Eugene Arnold, Ruth Ann Luna, Kent Williams, James Chan, Robert A Parker, Qinglong Wu, Jill A Hollway, Adelina Jeffs, Frances Lu, Daniel L Coury, Caitlin Hayes, Tor Savidge

Article Affiliation:

L Eugene Arnold

Abstract:

A randomized pilot trial of gastrointestinal (GI) symptoms targeting probiotic for quality of life in autism spectrum disorder (ASD).Thirteen children, 3-12 years of age with ASD, anxiety, and GI symptoms, were randomized into a probiotic crossover trial of 8 weeks each on VISBIOME and placebo separated by a 3-week washout. VISBIOME contains eight probiotic species, mostlyand. Primary outcome was the Pediatric Quality of Life Inventory (PedsQL) GI module. Secondary outcomes included gut microbiota analysis, the Parent-Rated Anxiety Scale for ASD (PRAS-ASD), and parent-selected target symptoms. A mixed analysis model was applied.Thirteen children were randomized, with 10 completing the study (77% retention): 6 in probiotic/placebo sequence, 4 in placebo/probiotic sequence. Adherence to study treatment was 96%. There were no serious adverse events (AEs), and more nonserious AEs occurred with placebo than with probiotic, including those attributable to treatment. Only 6 of the 10 guessed the correct treatment at the end of week 8. Over the 19-week trial, each outcome improved from baseline and PedsQL correlated significantly with abundance ofwithout discernable changes to microbiota composition/diversity. Although probiotic showed more improvement than placebo, PedsQL and PRAS-ASD were not statistically significant, as expected at this sample size. PedsQL effect size was = 0.49 by the general model and = 0.79 by simple comparison of week 8 changes. A parent-selected target symptom showed significant improvement in GI complaints on probiotic compared with placebo ( = 0.02, = 0.79). Probiotic effects carried over through the 3-week washout.The VISBIOME formulation was safe and suggested a health benefit in children with ASD and GI symptoms who retained. The moderate effect size compared with placebo warrants a larger trial using a parallel-group design.

Study Type : Human Study

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