Efficacy and Safety Study of I10E in the Maintenance Treatment of Patients With CIDP: Extension of PRISM Study I10E-1302
Condition: Chronic Inflammatory Demyelinating Polyradiculoneuropathy
MeSH terms: Polyradiculoneuropathy; Polyradiculoneuropathy, Chronic Inflammatory Demyelinating
Intervention: I10E
Intervention description: Patients who met all eligibility criteria will receive 0.5 g/kg of IMP every 3 weeks during 45 weeks.
Phase: Phase 3
Study type: Interventional
Primary purpose: Treatment
Intervention model: Single Group Assignment
Masking: None (Open Label)
Enrollment: 19.0
Sex: All
Minimum age: 18 Years
Healthy volunteers: No
Keywords: Peripheral neuropathy; Disimmune disease; Neurology chronic disease; Rare disease

Summary:

      Primary objective:

      To assess the efficacy of I10E administered at a reduced maintenance dose in sustaining CIDP
      response after an initial 6-month treatment in PRISM study. (I10E-1302).

      Secondary objective:

      To assess the safety of I10E in this patient population.
    

Eligibility criteria:

        Inclusion Criteria:

          1. Male or female patient aged 18 years or more.

          2. Responder patient who have completed the last visit of PRISM I10E-1302 study defined
             as a patient with a decrease ≥1 point in the adjusted INCAT disability score between
             baseline and the end-of-study (EOS) visit of PRISM I10E-1302 study.

          3. Covered by national healthcare insurance system as required by local regulations.

          4. Written informed consent obtained prior to any study-related procedures.

        Exclusion Criteria:

          1. History of severe allergic reaction or serious adverse reaction to any Ig.

          2. Known hypersensitivity to human Ig or to any of the excipients of I10E (glycine and
             polysorbate 80).

          3. History of cardiac insufficiency (New York Heart Association (NYHA) III/IV),
             uncontrolled cardiac arrhythmia, unstable ischemic heart disease, or uncontrolled
             hypertension.

          4. History of venous thromboembolic disease, myocardial infarction or cerebrovascular
             accident.

          5. Risk factor for blood hyperviscosity such as cryoglobulinemia or haematological
             malignancy with monoclonal gammopathy.

          6. Body mass index (BMI) ≥40 kg/m².

          7. Glomerular filtration rate <80 mL/min/1.73m² measured according to the Modified Diet
             Renal Disease (MDRD) calculation.

          8. Any other ongoing disease that may cause chronic peripheral neuropathy, such as toxin
             exposure, dietary deficiency, uncontrolled diabetes, hyperthyroidism, cancer, systemic
             lupus erythematosus or other connective tissue diseases, infection with HIV, Hepatitis
             B Virus (HBV) or Hepatitis C Virus (HCV), Lyme disease, multiple myeloma,
             Waldenström's macroglobulinaemia, amyloidosis, and hereditary neuropathy.

          9. Woman with positive results on a urine pregnancy test or breastfeeding woman or woman
             of childbearing potential without an effective contraception.

         10. Any other serious medical condition that would interfere with the clinical assessment
             of CIDP or use of I10E or prevent the patient from complying with the protocol
             requirements.

         11. Increasing dosage or introduction of a systemic corticosteroids therapy within the
             last 3 months prior to screening, at a dose higher than 10 mg daily prednisolone or
             equivalent. Topical corticosteroids are permitted.

         12. Treatment within 12 months prior to screening with immunomodulatory or
             immunosuppressant agents (including but not limited to cyclophosphamide, cyclosporine,
             interferon-α, interferon-β1a, anti-CD20, alemtuzumab, aziathioprine, etanercept,
             mycophenolate mofetil and methotrexate) or haemopoetic stem cell transplantation.

         13. Plasma exchange, blood products or derivatives administered within the last 3 months
             prior to screening.

         14. Anticipated poor compliance of patient with study procedures.