Title
Safety & Efficacy of Encapsulated Allogeneic FVIII Cell Therapy in Haemophilia A
A Phase 1/2 Open-Label, Dose-Escalation, Safety, Tolerability, and Efficacy Study of SIG-001 in Adult Patients With Severe or Moderately-Severe Haemophilia A Without Inhibitors (SIG-001-121)
Phase
Phase 1/Phase 2Lead Sponsor
Sigilon Therapeutics, Inc.Study Type
InterventionalStatus
TerminatedIndication/Condition
Hemophilia AIntervention/Treatment
SIG-001Study Participants
3SIG-001-121 is a first-in-human (FIH), phase 1/2, multi-centre, open-label, dose escalation study to assess the safety, tolerability, and preliminary efficacy of SIG-001 in adults with severe or moderately severe haemophilia A without inhibitors. Up to three dose cohorts (3 patients each) are planned. Cohort expansions (up to 3 additional patients) may be triggered to collect additional information about safety and efficacy.
B-Domain Deleted Human Factor VIII (BDD-hFVIII) Producing Spheres
Inclusion Criteria: Males aged 18 years or older Diagnosis of Haemophilia A defined as ≤2% FVIII activity Greater than 150 exposure days to treatment with FVIII products Use of reliable barrier contraception if applicable Normal levels of von Willebrand factor (VWF) antigen Able and willing to provide informed consent Willing to withdraw from FVIII prophylaxis during specified periods in the study Exclusion Criteria: Body mass index (BMI) ≥35 Current FVIII inhibitors (>0.6 Nijmegen Bethesda Units/mL) or prior Immune Tolerance Induction (ITI) History of allergic reaction or anaphylaxis to recombinant FVIII products or SIG-001 components Evidence of any bleeding disorder in addition to haemophilia A Abnormal laboratory values as defined in the protocol Active infection with Hepatitis B or Hepatitis C virus or currently managed with antiviral medications for Hepatitis B or C Uncontrolled HIV infection Active alcoholism or drug addiction during the 12 months before the screening visit Active malignancy or history of malignancy in the 5 years prior to study entry Participation in another investigational medicine or device study Prior administration of a gene therapy product Significant underlying disease or comorbidities that are a contraindication for general anaesthesia or laparoscopic procedure