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AAV9 U7snRNA Gene Therapy to Treat Boys With DMD Exon 2 Duplications.
Bu çalışma, DMD geninde ekzon 2 duplikasyonu bulunan erkek çocuklarda scAAV9.U7.ACCA adlı bir gen terapisini (AAV9 U7snRNA) incelemektedir. Çalışmaya, DMD geninde ekzon 2 duplikasyonu doğrulanmış, 6 aydan büyük ve 14 yaşından küçük erkek çocuklar alınmıştır. Faz 1/Faz 2 aşamasında yürütülmüş ve tamamlanmıştır.
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: * Age greater than 6 months and less than 14 years * Confirmed duplication of exon 2 in the DMD gene using a clinically accepted technique that completely defines the mutation * Pre-ambulant (not yet walking) or ambulant (as defined by the ability to walk 10 meters without assistance) * Males of any ethnic group will be eligible * Ability to cooperate with muscle testing * In subjects age 4 and above, stable dose and regimen of corticosteroid therapy (prednisone, deflazacort, or their generic forms) for at least 12 weeks prior to gene transfer. Exclusion Criteria: * Active viral infection based on clinical observations * Symptoms or signs of cardiomyopathy, including: 1. Dyspnea on exertion, pedal edema, shortness of breath upon lying flat, or rales at the base of the lungs 2. Echocardiogram with ejection fraction below 40% * Serological evidence of HIV infection, or Hepatitis B or C infection * Diagnosis of (or ongoing treatment for) an autoimmune disease * Persistent leukopenia or leukocytosis (WBC ≤ 3.5 K/µL or ≥ 20.0 K/µL) or an absolute neutrophil count \< 1.5K/µL * Concomitant illness or requirement for chronic drug treatment that in the opinion of the SI creates unnecessary risks for gene transfer * AAV9 binding antibody titers ≥ 1:400 as determined by ELISA immunoassay * Abnormal laboratory values in the clinically significant range as listed in Table 7, based upon normal values in the Nationwide Children's Hospital Laboratory.