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Under double-blind, placebo-controlled, cross-over conditions, the short-term effects of use of A1 beta casein free milk (a2 milk) and milk containing A1 beta casein will be compared in a sample of pre-pubescent boys diagnosed with an autism spectrum disorder (ASD) with concurrent features of attention-deficit hyperactivity disorder (ADHD).
Previous preliminary research studies have suggested that a diet devoid of milk and dairy products might be useful for some people on the autism spectrum in reducing certain types of behaviours or other symptoms that can affect quality of life. Aggravation of some of the symptoms of autism has been suggested to be linked to some of the constituents of milk, in particular a natural breakdown product of the milk protein called beta-casomorphin 1-7 (BC 1-7 or BCM-7) found in the majority of mammalian dairy products. A dairy-free diet (casein-free diet) can however be a difficult diet to follow and may increase the risk that certain nutrients are missing from the diet.
Anecdotal evidence suggests that different types of milk from different breeds of cattle (cows) may not carry the same biological effects for some on the autism spectrum. Milk typically found in supermarkets naturally contains BC1-7 as a function of the type of cows producing the milk and the protein it contains (A1 variant of the beta casein protein).
The investigators are aiming to test whether a particular type of milk (A1 beta casein free milk also called a2 Milk™) might be able to replace a casein-free diet for children on the autism spectrum also presenting with attention-deficit hyperactivity disorder (ADHD) type symptoms. The investigators will be looking at the potential effects of A1 beta casein free milk on behaviour and various biological processes going on in the body. The source of A1 beta casein free milk will be commercially available a2 Milk™ branded milk that is directly comparable to regular supermarket bought milk with the exception of the beta casein component and is already available to buy.
In this double-blind, randomised, placebo-controlled trial, the effects of milk free of A1 beta casein (a branded milk called a2 milk™) and milk containing A1 beta casein will be compared in a sample of pre-pubescent children diagnosed with an autism spectrum disorder with concurrent features of attention-deficit hyperactivity disorder (ADHD). Forty children based in North East England will be initially recruited; all possessing communicative speech and language. A baseline assessment will be conducted to include behavioural, psychometric and health-related parameters. Following random allocation, participants will be assigned to group A or group B and given A1 milk or a2 Milk™ initially for a period of 4 weeks. At this point, baseline assessment measures will be repeated. Milk types will be crossed for groups for a further 4 weeks. At study endpoint, baseline assessment measures will be repeated again. Data derived from the study will be analysed and outcomes reported in peer-review format. During the course of the study, all other forms of dairy product consumption (cheese, yogurts, etc) will be excluded from the diet of all participants irrespective of their treatment allocation.
Data from supervised baseline, midpoint and endpoint psychometric and behavioural assessments will be made and stored via a secure survey website accessed via tablets supplied to all participants.
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment
a2 milk, a1 containing milk
Not yet recruiting
Published on BioPortfolio: 2016-09-22T20:53:30-0400
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