ENGLISH ABSTRACT
JOURNAL ARTICLE
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[The use of long-acting somatostatin analogs in congenital hyperinsulinism].

BACKGROUND: Children with congenital hyperinsulinism (CHI), a severe orphan disease, are still one of the most demanding patients in the endocrinology practice. The use of first- and second-line drugs is not always effective and has a number of restrictions. Lanreotide - long-acting somatostatin - represents an alternative insulinostatic therapy. The main advantage of lanreotide is stable concentration of the drug in the blood that enables minimizing the number of injections. However, the experience of using lanreotide in the treatment of CHI is limited to small groups of patients. There is also a problem of the absence of a standardized regimen in clinical practice; and the calculator for evaluating the initial effective drug dose is needed.AIM of the study is to evaluate the effectiveness and safety of lanreotide therapy in the treatment of CHI in children.

MATERIALS AND METHODS: An open single-center observational study was conducted on the basis of Endocrinology Research Centre. The study included diazoxide-unresponsive pediatric patients with CHI who were initially treated with octreotide in different modes: multiple daily subcutaneous injections or continuous subcutaneous infusion via pumps. The indicators of the effectiveness and safety of the lanreotide therapy were evaluated shortly after the first injection and lately on a regular visit after further injections.

RESULTS: The study group included 12 patients. Persistent euglycaemia was achieved in 67% of the subjects (8/12). Complete effectiveness of the therapy was observed in 8/12 patients (67%), partial - in 3/12 (25%), and lack of effectiveness - in 1/12 of the patient (8%). The age of the patients at the time of lanreotide administration was 6 months (5; 15). According to the study, the most effective dose of lanreotide is 3.5-5.5 mg/ kg/ month. There were no significant side effects observed.

CONCLUSIONS: The use of lanreotide in patients with diazoxide-resistant congenital hyperinsulinism was effective and safe in the vast majority of the patients. Moreover, we were able to calculate the effective dosage of lanreotide in CHI patients which fulfilled the clinical demand.

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