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Evaluation of Safety and Efficacy of Gene Therapy Drug in the Treatment of Spinal Muscular Atrophy (SMA) Type 2 Patients
Bu Faz 1/2 (Phase 1/2) çalışma, spinal musküler atrofi (spinal muscular atrophy, SMA) tip 2 hastalarında GC101 gen terapisi ilacının omurilik sıvısına (intratekal) uygulanmasının güvenliliğini ve etkililiğini değerlendirmektedir. Çalışmaya, bilgilendirilmiş onam formunun imzalandığı gün 6 ile 60 ay arasında olan çocuklar alınmaktadır. Katılım için SMA tanısının genetik analizle doğrulanmış olması, iki alelde de SMN1 mutasyonu (delesyon veya nokta mutasyonu) ve 2 kopya SMN bulunması gerekmektedir.
Yukarıdaki özet, resmî kaydın sade dile aktarılmış halidir. Orijinal İngilizce başlık referans için gösterilir.
Kriterler ClinicalTrials.gov kaydından orijinal İngilizce haliyle alınmıştır. Uygunluk kararını yalnızca deneyi yürüten ekip verebilir.
Inclusion Criteria: * Between 6 months and 60 months of age on day of signing informed consent form; * Patient with SMA Type 2 as defined by the following features: * Diagnosis of SMA based on gene mutation analysis with bi-allelic SMN1 mutations (deletion or point mutations) and 2 copies of SMN * Onset of disease between 6 and 18 months of age * Patient who can sit alone but never be able to stand or walk alone ; * The patient's legal guardian(s) must be able to understand the purpose and risks of the study and voluntarily provide signed and dated informed consent prior to any study-related procedures being performed. Exclusion Criteria: * Patient who has participated in any previous gene therapy research trials; * Patient who has received Nusinersen within 4 months and Risdiplam within 15 days before treatment; * Patient who has AAV9 neutralizing antibody titer ≥1:200; * Patient with a point mutation in SMN2 (c.859G\>C); * Patient who requires non-invasive ventilatory support averaging≥12 hours/day at screening, or use invasive ventilatory support or pulse oximetry \< 95% saturation while awake and calm at screening; * Patient who is positive for human immunodeficiency virus (HIV) antibody, hepatitis B surface antigen, hepatitis C antibody, or treponema pallidum antibody; * Abnormal laboratory values considered clinically significant, including gamma-glutamyl transferase(GGT), Aspartate aminotransferase (AST), alanine aminotransferase (ALT), bilirubin \> 3x upper limit of normal (ULN), Hemoglobin (Hgb)\< 110 or \>150 g/L, platelet \<lower limit of normal (LLN);Class IV patient based on Modified Ross Heart Failure Classification for Children; * Patient with a history of glucocorticoid allergy; * Contraindication that would interfere with the lumbar puncture procedures; * Presence of an untreated active infection requiring systemic antiviral therapy at any time during the screening period; * Vaccination less than 2 weeks before infusion of vector; * Patient who has any concurrent clinically significant major disease or any other condition that, in the opinion of the Investigator, makes the subject unsuitable for participation in the study. Note: Other protocol defined inclusion/exclusion criteria may apply.