Extensively hydrolyzed casein formula containing Lactobacillus rhamnosus GG reduces the occurrence of other allergic manifestations in children with cow's milk allergy: 3‐year randomized controlled trial
Abstract
Background Children with cow's milk allergy (CMA) have an increased risk of other allergic manifestations (AMs). Objective We performed a parallel‐arm randomized controlled trial to test whether administration of an extensively hydrolyzed casein formula (EHCF) containing the probiotic Lactobacillus rhamnosus GG (LGG) can reduce the occurrence of other AMs in children with CMA. Methods Children with IgE‐mediated CMA were randomly allocated to the EHCF or EHCF+LGG groups and followed for 36 months. The main outcome was occurrence of at least 1 AM (eczema, urticaria, asthma, and rhinoconjunctivitis). The secondary outcome was tolerance acquisition, which was defined as the negativization of a double‐blind food challenge results at 12, 24, and 36 months. AMs were diagnosed according to standardized criteria. Tolerance acquisition was evaluated every 12 months. Results A total of 220 children (147 boys [67%]) with a median age of 5.0 months (interquartile range, 3.0‐8.0 months) were randomized; 110 children were placed in the EHCF group, and 110 children were placed in the EHCF+LGG group. In the complete case analysis the absolute risk difference for the occurrence of at least 1 AM over 36 months was −0.23 (95% CI, −0.36 to −0.10; P < .001), and the absolute risk difference for the acquisition of cow's milk tolerance was 0.20 (95% CI, 0.05‐0.35; P < .01) at 12 months, 0.24 (95% CI, 0.08‐0.41; P < .01) at 24 months, and 0.27 (95% CI, 0.11‐0.43; P < .001) at 36 months. In the…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 220 participants or records.
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