Gaucher Disease Clinical Trial
Official title:
The Guard1 Trial, an Open-Label, Multinational Phase 1/2 Study of the Safety and Efficacy of Ex Vivo, Lentiviral Vector-Mediated Gene Therapy AVR-RD-02 for Subjects With Type 1 Gaucher Disease
This was a multinational, open-label study to assess the safety and efficacy of AVR-RD-02 in approximately 8 to 16 subjects (male or female) who are ≥18 and ≤50 years of age and post pubertal at Screening with a confirmed diagnosis of Type 1 Gaucher disease (based on clinical phenotype, genotyping, and deficient GCase enzyme activity in whole blood).
Five study periods (Screening, Baseline, Pre-gene Therapy Infusion, Gene Therapy Infusion, and Post-gene Therapy Infusion Follow-up) comprised the study. During the Screening Period (approximately 60 days), written informed consent was obtained and the subject completed other Screening procedures to confirm study eligibility. Once study eligibility was confirmed, subjects entered the Baseline Period (up to 7 days) during which time assessments were performed to establish Pre-gene Therapy Infusion baseline. Once baseline assessments were completed, the subject entered the Pre-gene Therapy Infusion Period (approximately 8 to 10 weeks) during which time mobilization, apheresis, AVR-RD-02 investigational product preparation and testing for release, busulfan conditioning regimen administration took place. Enzyme replacement therapy was discontinued at least 2 weeks before the scheduled Gene Therapy Infusion Day. Following completion of the Pre-gene Therapy Infusion Period, the subject entered the Gene Therapy Infusion Period (1 day) during which AVR-RD-02 infusion took place. After AVR-RD-02 Gene Therapy Infusion, the subject entered the Post-gene Therapy Infusion Follow-up Period (approximately 52 weeks) during which time periodic safety and efficacy assessments were performed to assess measures of safety, engraftment, and clinical response following AV-RD-02 infusion. In August 2023, the study was terminated early by the Sponsor, which was not based on any safety or medical reasons and therefore, one subject did not complete the study (i.e., Week 52). Subsequently, in August 2023, the sponsor's long-term follow-up study (AVRO-RD-02-LTF01), was also terminated early for the same reason as the AVRO-RD-02-201 study, and therefore, no subjects completed the 15-year long-term follow-up study. ;
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