Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
PHASE1/PHASE2
32 participants
INTERVENTIONAL
2025-11-30
2029-09-30
Brief Summary
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Participants will be monitored for up to one year after receiving PS-002 and invited to take part in a long-term follow-up study (total follow-up: 5 years).
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Detailed Description
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Conditions
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Study Design
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NA
SEQUENTIAL
TREATMENT
NONE
Study Groups
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PS-002
Part 1: Dose escalation in three groups: Group 1: Low dose, Group 2: Intermediate Dose, Group 3: High Dose.
Part 2: Dose expansion in a fourth group with a selected dose.
PS-002
Adeno-associated viral vector containing the human Complement Factor I (CFI) gene
Interventions
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PS-002
Adeno-associated viral vector containing the human Complement Factor I (CFI) gene
Eligibility Criteria
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Inclusion Criteria
* A historic kidney biopsy performed within 36 months prior to screening with reported evidence of complement component 3 (C3) deposition. If the participant had a kidney biopsy performed over 36 months prior to Screening, a new kidney biopsy should be carried out during the Screening period. This biopsy must exhibit signs of ongoing complement system activity.
* Proteinuria as assessed at the Screening visit by UPCR at least 1g/g (at least 1000 mg/g) OR total protein excretion at least 1 g/24 h (at least 1000 mg/24h) sampled from 24 h urine collection.
* eGFR calculated using the CKD-EPI formula at least 45 mL/min/1.73m\^2.
* Sitting office systolic blood pressure equal to or less than 140 mmHg, diastolic blood pressure equal to or less than 90 mmHg.
* All participants must have been on best supportive care for IgAN, as per region-specific requirements defined in the protocol.
Exclusion Criteria
* Any secondary IgAN defined as associated with gastrointestinal and liver disorders (liver cirrhosis, celiac disease, Crohn's disease, ulcerative colitis), autoimmune disorders (dermatitis herpetiformis, psoriasis, seronegative arthritis, systemic lupus erythematosus, rheumatoid arthritis), malignancy (IgA myeloma, lymphoma, lung cancer, renal cell cancer, cutaneous T-cell lymphoma), respiratory disorders (bronchiolitis obliterans, idiopathic pulmonary fibrosis) etc.
* Having a major concurrent non-IgAN-related disease that, in the opinion of the investigator, prevents the assessment of IgAN.
* History of malignancy; or bone marrow or organ transplant.
* History of, or currently active primary or secondary immunodeficiency, including known history of human immunodeficiency virus infection, and other severe immunodeficiency blood disorders.
* Presence of other significant medical conditions that would create an unacceptable procedure or anesthesia risk.
* Aspartate aminotransferase or alanine aminotransferase greater than 1.5 times the upper limit of normal.
* History of serious infection requiring parenteral antibiotics within the past 8 weeks prior to study drug administration.
* Participants previously treated with immunosuppressive/immunomodulatory agents such as, but not limited to, cyclophosphamide, infliximab, complement inhibitor, canakinumab, mycophenolate mofetil, mycophenolate sodium, cyclosporine, tacrolimus, everolimus, or systemic corticosteroids (exposure greater than 7.5mg/day prednisone/prednisolone equivalent) within 90 days (or 180 days for rituximab) prior to Screening. Participants previously or currently receiving oral budesonide (Kinpeygo/Tarpeyo) require wash out for 90 days prior to the study drug administration.
* Exposed to a live or attenuated vaccine within the 6 weeks prior to study drug administration.
* Participants with a known sensitivity or intolerance to corticosteroid therapy.
* Known hypersensitivity to study drug ingredients.
* Prior treatment with PS-002 or any other gene therapy, or participation in any other investigational trial during this study.
* Positive serology for hepatitis B or C, i.e., positive hepatitis B surface antigen or hepatitis C ribonucleic acid (RNA) viral load positive.
* Participants treated with potentially hepatotoxic medications unless they have been monitored in accordance with the drug label and have received a stable dose since \>90 days prior to dosing without clinically significant liver enzyme fluctuations.
18 Years
ALL
No
Sponsors
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Purespring Therapeutics Limited
INDUSTRY
Responsible Party
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Locations
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University of Miami Hospital
Miami, Florida, United States
The Johns Hopkins Hospital
Baltimore, Maryland, United States
University of Michigan Hospital
Ann Arbor, Michigan, United States
Manchester University NHS Foundation Trust
Manchester, Greater Manchester, United Kingdom
Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust
Manchester, Greater Manchester, United Kingdom
Leicester General Hospital
Leicester, Leicestershire, United Kingdom
Nottingham University Hospitals NHS Trust
Nottingham, Nottinghamshire, United Kingdom
Southmead Hospital
Bristol, , United Kingdom
Cardiff and Vale University Health Board
Cardiff, , United Kingdom
Royal Infirmary of Edinburgh Clinical Research Facility
Edinburgh, , United Kingdom
The Royal London Hospital
London, , United Kingdom
Countries
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Central Contacts
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Other Identifiers
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2025-523201-14-00
Identifier Type: CTIS
Identifier Source: secondary_id
PS-002-101
Identifier Type: -
Identifier Source: org_study_id
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