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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="review-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Child Neurology</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Child Neurology</journal-title><trans-title-group xml:lang="ru"><trans-title>Русский журнал детской неврологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2073-8803</issn><issn publication-format="electronic">2412-9178</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">566</article-id><article-id pub-id-type="doi">10.17650/2073-8803-2026-21-2-103-114</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>REVIEWS AND LECTURES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОБЗОРЫ И ЛЕКЦИИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Practical aspects of intracerebroventricular infusions of cerliponase alfa in patients with neuronal ceroid lipofuscinosis type 2</article-title><trans-title-group xml:lang="ru"><trans-title>Практические аспекты проведения интрацеребровентрикулярных инфузий церлипоназы альфа у пациентов с нейрональным цероидным липофусцинозом 2-го типа</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2115-985X</contrib-id><name-alternatives><name xml:lang="en"><surname>Mikhaylova</surname><given-names>Svetlana V.</given-names></name><name xml:lang="ru"><surname>Михайлова</surname><given-names>Светлана Витальевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Russian Children’s Clinical Hospital </p></bio><bio xml:lang="ru"><p>Российская детская клиническая больница </p></bio><email>svetychvital@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3764-2766</contrib-id><name-alternatives><name xml:lang="en"><surname>Lobanova</surname><given-names>V. S.</given-names></name><name xml:lang="ru"><surname>Лобанова</surname><given-names>В. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>svetychvital@mail.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8146-5501</contrib-id><name-alternatives><name xml:lang="en"><surname>Reshchikov</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Рещиков</surname><given-names>Д. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Russian Children’s Clinical Hospital </p></bio><bio xml:lang="ru"><p>Российская детская клиническая больница </p></bio><email>svetychvital@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-4317-904X</contrib-id><name-alternatives><name xml:lang="en"><surname>Lobankin</surname><given-names>P. V.</given-names></name><name xml:lang="ru"><surname>Лобанкин</surname><given-names>П. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>svetychvital@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N. I. Pirogov Russian National Research Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГAOУ ВО «Российский национальный исследовательский медицинский университет им. Н. И. Пирогова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Morozovskaya Children’s City Clinical Hospital of the Moscow Healthcare Department</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Морозовская детская городская клиническая больница Департамента здравоохранения г. Москвы»</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Svt. Luka’s Institute of Child Neurology and Epilepsy</institution></aff><aff><institution xml:lang="ru">ООО «Институт детской неврологии и эпилепсии им. Святителя Луки»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-08-03" publication-format="electronic"><day>03</day><month>08</month><year>2026</year></pub-date><volume>21</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>103</fpage><lpage>114</lpage><history><date date-type="received" iso-8601-date="2026-08-03"><day>03</day><month>08</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-08-03"><day>03</day><month>08</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, ABV-Press</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, АБВ-пресс</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">ABV-Press</copyright-holder><copyright-holder xml:lang="ru">АБВ-пресс</copyright-holder><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0/</ali:license_ref></license></permissions><self-uri xlink:href="https://rjdn.abvpress.ru/jour/article/view/566">https://rjdn.abvpress.ru/jour/article/view/566</self-uri><abstract xml:lang="en"><p>Neuronal ceroid lipofuscinosis type 2 (CLN2 disease) is a rare, autosomal recessive neurodegenerative disorder caused by mutations in the <italic>TPP1</italic> gene, which lead to a decrease or complete loss of lysosomal tripeptidyl peptidase 1 enzyme activity. The classic form of CLN2 disease typically manifests between the ages of 2 and 4 years. Over time, there is a rapid and predictably severe progression of intellectual and motor deficits, loss of visual acuity, and an increased frequency of epileptic seizures refractory to antiepileptic therapy. In its natural course, the classic form of CLN2 disease leads to severe disability by 6–7 years of age and death on average during the 10<sup>th</sup> year of life. Currently, pathogenetic enzyme replacement therapy has been developed only for CLN2 disease, utilizing the drug cerliponase alfa. In Russia, children with CLN2 disease are provided with cerliponase alfa through funding from the “Circle of Kindness”, a state fund supporting children with severe life-threatening and chronic diseases, including rare (orphan) conditions.</p> <p>Cerliponase alfa cannot cross the blood-brain barrier and must be administered directly into the cerebrospinal fluid via intracerebroventricular (ICV) infusion through a surgically implanted reservoir and ventricular catheter. Infectious complications can result in missed ICV infusions, which, in turn, may adversely affect the efficacy of enzyme replacement therapy. To reduce the risk of infectious complications, strict adherence to aseptic rules is essential during patient preparation, as well as during and after the ICV infusion.</p> <p>These practical guidelines for performing ICV infusions of enzyme replacement therapy in patients with CLN2 disease have been developed to implement measures in clinical practice aimed at minimizing the risk of infectious complications and damage to ICV infusion devices.</p></abstract><trans-abstract xml:lang="ru"><p>Нейрональный цероидный липофусциноз 2-го типа (НЦЛ2) – редкое аутосомно-рецессивное нейродегенеративное заболевание, связанное с мутациями в гене <italic>TPP</italic><italic>1</italic>, приводящими к снижению или полной потере активности лизосомного фермента трипептидилпептидазы-1. Классическая форма НЦЛ2, как правило, манифестирует в возрасте от 2 до 4 лет. С течением времени наблюдаются быстрое и предсказуемо тяжелое прогрессирование интеллектуальных, двигательных нарушений, потеря остроты зрения, учащение эпилептических приступов, резистентных к антиэпилептической терапии. При естественном течении классическая форма НЦЛ2 приводит к тяжелой инвалидизации к 6–7 годам и летальному исходу в среднем на 10-м году жизни. В настоящее время только для НЦЛ2 разработана патогенетическая ферментозаместительная терапия – препарат церлипоназа альфа. В России дети с НЦЛ2 обеспечиваются церлипоназой альфа за счет средств «Круга добра» – государственного фонда поддержки детей с тяжелыми жизнеугрожающими и хроническими заболеваниями, в том числе редкими (орфанными) заболеваниями.</p> <p>Препарат церлипоназа альфа не может преодолевать гематоэнцефалический барьер и должен вводиться непосредственно в спинномозговую жидкость путем интрацеребровентрикулярной (ИЦВ) инфузии через хирургически имплантированный резервуар и вентрикулярный катетер. Инфекционные осложнения могут привести к пропуску ИЦВ-инфузий, что, в свою очередь, может негативно повлиять на эффективность ферментозаместительной терапии. Для снижения риска развития инфекционных осложнений необходимо строго соблюдать правила асептики на этапе подготовки пациента, во время проведения ИЦВ-инфузии и после нее.</p> <p>Данные практические рекомендации по проведению ИЦВ-инфузии ферментозаместительной терапии у пациентов с НЦЛ2 разработаны для внедрения в клиническую практику мер, направленных на минимизацию риска инфекционных осложнений и повреждений устройств для ИЦВ-инфузий.</p></trans-abstract><kwd-group xml:lang="en"><kwd>intracerebroventricular infusion</kwd><kwd>neuronal ceroid lipofuscinosis type 2</kwd><kwd>Ommaya reservoir</kwd><kwd>central venous access device</kwd><kwd>Huber needle</kwd><kwd>cerliponase alfa</kwd><kwd>infectious complication</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>интрацеребровентрикулярная инфузия</kwd><kwd>нейрональный цероидный липофусциноз 2-го типа</kwd><kwd>резервуар Оммайя</kwd><kwd>устройство для центрального венозного доступа</kwd><kwd>игла Губера</kwd><kwd>церлипоназа альфа</kwd><kwd>инфекционное осложнение</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Mikhaylova S.V., Batazeva M.M., Zazhivikhina M.V. et al. Clinical and genetic characteristics, diagnosis, and therapy of neuronal ceroid lipofuscinosis type 2 in the Russian population. Meditsinskaya genetika = Medical Genetics 2026;25(3):22–31. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Михайлова С.В., Батажева М.М., Заживихина М.В. и др. Клинико-генетическая характеристика, диагностика и терапия нейронального цероидного липофусциноза 2-го типа в российской популяции. Медицинская генетика 2026;25(3):22–31.</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">Resolution of the Expert Council “Open questions in the management of patients with neuronal ceroid lipofuscinosis type 2”. Russkiy zhurnal detskoy nevrologii = Russian Journal of Child Neurology 2026;21(1):81–5. (In Russ.). DOI: 10.17650/2073-8803-2026-21-1-81-85</mixed-citation><mixed-citation xml:lang="ru">Резолюция совета экспертов «Открытые вопросы ведения пациентов с нейрональным цероидным липофусцинозом 2-го типа». Русский журнал детской неврологии 2026;21(1): 81–5. DOI: 10.17650/2073-8803-2026-21-1-81-85</mixed-citation></citation-alternatives></ref><ref id="B3"><label>3.</label><citation-alternatives><mixed-citation xml:lang="en">Circle of Goodness Foundation. Available at: https://фондкругдобра.рф. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Фонд «Круг добра». Доступно по: https://фондкругдобра.рф.</mixed-citation></citation-alternatives></ref><ref id="B4"><label>4.</label><mixed-citation>Atkinson A.J.Jr. Intracerebroventricular drug administration. Transl Clin Pharmacol 2017;25(3):117–24. DOI: 10.12793/tcp.2017.25.3.117</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Boop S., Nistal D., Barrios-Anderson A. et al. Novel surgical approach for intraventricular cerliponase alfa enzyme replacement therapy via central venous access device (CVAD) port in neuronal ceroid lipofuscinosis type 2 (CLN2) disease. Childs Nerv Syst 2025;41(1):172. DOI: 10.1007/s00381-025-06822-4</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Cohen-Pfeffer J.L., Gururangan S., Lester T. et al. Intracerebroventricular delivery as a safe, long-term route of drug administration. Pediatr Neurol 2017;67:23–35. DOI: 10.1016/j.pediatrneurol.2016.10.022</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>De Los Reyes E., Lehwald L., Augustine E.F. et al. Intracerebroventricular cerliponase alfa for neuronal ceroid lipofuscinosis type 2 disease: clinical practice considerations from US clinics. Pediatr Neurol 2020;110:64–70. DOI: 10.1016/j.pediatrneurol.2020.04.018</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>EMA. Available at: https://www.ema.europa.eu/.</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>FDA. Available at: https://www.fda.gov/.</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Fote G.M., Schafenacker A., Singh J. et al. Management of positive cerebrospinal fluid cultures from intraventricular reservoirs of neuronal ceroid lipofuscinosis type 2 patients: one institution’s experience. J Neurosurg Pediatr 2025;36(5):649–56. DOI: 10.3171/2025.4.PEDS24452</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Gopalka M., Patel J., Votoupal M., Lam S. Patient and family perspective on transition from ventricular access device to chest-sited port for intracerebroventricular infusion in CLN2 disease. Children (Basel) 2026;13(3):365. DOI: 10.3390/children13030365</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Kovacs K.D., Patel S., Orlin A. et al. Symmetric age association of retinal degeneration in patients with CLN2-associated Batten disease. Ophthalmol Retina 2020;4(7):728–36. DOI: 10.1016/j.oret.2020.01.011</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Mole S.E., Schulz A., Badoe E. et al. Guidelines on the diagnosis, clinical assessments, treatment and management for CLN2 disease patients. Orphanet J Rare Dis 2021;16(1):185. DOI: 10.1186/s13023-021-01813-5</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Nickel M., Simonati A., Jacoby D. et al. Disease characteristics and progression in patients with late-infantile neuronal ceroid lipofuscinosis type 2 (CLN2) disease: an observational cohort study. Lancet Child Adolesc Health 2018;2(8):582–90. DOI: 10.1016/S2352-4642(18)30179-2</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Read J., Donald A., Rhead S. et al. Chest-sited intraventricular access devices for cerliponase alfa infusion in Batten disease at a single tertiary United Kingdom pediatric center. J Neurosurg Pediatr 2025;37(1):87–94. DOI: 10.3171/2025.7.PEDS25222</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Sampaio L.P.B., Manreza M.L.G., Pessoa A. et al. Clinical management and diagnosis of CLN2 disease: consensus of the Brazilian experts group. Arq Neuropsiquiatr 2023;81(3):284–95. DOI: 10.1055/s-0043-1761434</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Schulz A., Ajayi T., Specchio N. et al. Study of intraventricular cerliponase alfa for CLN2 disease. N Engl J Med 2018;378(20):1898–907. DOI: 10.1056/NEJMoa1712649</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Schulz A., Schwering C., Wibbeler E. et al. Real-world clinical outcomes of patients with CLN2 disease treated with cerliponase alfa. Front Neurol 2025;16:1516026. DOI: 10.3389/fneur.2025.1516026</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Schwering C., Kammler G., Wibbeler E. et al. Development of the “Hamburg Best Practice Guidelines for ICV-Enzyme Replacement therapy (ERT) in CLN2 Disease” based on 6 years treatment experience in 48 patients. J Child Neurol 2021;36(8):635–41. DOI: 10.1177/0883073821989154</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>Schwering C., Kammler G., Wibbeler E. et al. Analysis of occurrence and treatment of device related adverse events under long-term ICV-ERT in CLN2 patients. Poster presented at 18th International Congress on Neuronal Ceroid Lipofuscinoses; September 26–30, 2023; Hamburg, Germany.</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>Shock M., Nigro E., Donner E.J., Whitney R. CLN2 disease: current understandings, challenges, and future directions. J Child Neurol 2026;41(1):118–34. DOI: 10.1177/08830738251374539</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>Specchio N., Pietrafusa N., Trivisano M. Changing times for CLN2 disease: the era of enzyme replacement therapy. Ther Clin Risk Manag 2020;16:213–22. DOI: 10.2147/TCRM.S241048</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>Thomale Guide. Available at: https://www.miethke.com/en/products/instruments/thomale-guide/.</mixed-citation></ref></ref-list></back></article>
