Safety and Efficacy Study of Three Different Dosages of NewGam in Patients With CIDP

NCT ID: NCT01225276

Last Updated: 2017-02-23

Basic Information

• Recruitment Status: TERMINATED
• Clinical Phase: PHASE2/PHASE3
• Total Enrollment: 2 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2011-10-31
• Study Completion Date: 2012-10-31

Brief Summary

NewGam (current working title for a new IGIV formulation) is a newly developed human normal immunoglobulin solution ready for intravenous administration (IGIV). This study will evaluate the safety and efficacy of three different dosages of NewGam 10% in patients with Chronic Inflammatory Demyelinating Polyradiculoneuropathy.

Detailed Description

This is a Phase 2/3 study that will take place in 2 stages. The primary objective of Stage 1 (Phase 2 dose-finding part)is to determine and select one dosage from three NewGam maintenance dosage arms in comparison with a placebo arm, based on the percentage of responders (response defined as a decrease, meaning improvement, in the adjusted INCAT disability score by at least 1 point). The selected NewGam dosage and placebo will be employed and compared in Stage 2.

The primary objective of Stage 2 (Phase 3 confirmatory part) is to demonstrate superiority of the maintenance dosage regimen selected at study Stage 1 over placebo in patients with CIDP as assessed by the percentage of responders.

The secondary objective is to evaluate the safety (measured by number of adverse events)and efficacy of NewGam administration in patients with CIDP compared to baseline.

Conditions

Chronic Inflammatory Demyelinating Polyradiculoneuropathy

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: DOUBLE

Study Groups

Dosage Arm 1

NewGam 10% 0.4 g/kg

Group Type: EXPERIMENTAL

NewGam 10%

Intervention Type: DRUG

Loading dose at baseline (Week 0) will be 2.0 g/kg NewGam . The maintenance doses to be infused 7 times will be 2.0 g/kg every 21 (+/-4) days.

Dosage Arm 2

NewGam 10% 1.0 g/kg

Group Type: EXPERIMENTAL

NewGam 10%

Intervention Type: DRUG

Loading dose at baseline (Week 0) will be 2.0 g/kg NewGam in all three NewGam treatment arms. The maintenance doses to be infused 7 times will be 1.0 g/kg every 21 (+/-4) days.

Dosage Arm 3

NewGam 10% 2.0 g/kg

Group Type: EXPERIMENTAL

NewGam 10%

Intervention Type: DRUG

Loading dose at baseline (Week 0) will be 2.0 g/kg NewGam in all three NewGam treatment arms. The maintenance doses to be infused 7 times will be 0.4 g/kg every 21 (+/-4) days.

Dosage Arm 4

Placebo 0.9% Saline

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: DRUG

Loading dose at baseline (Week 0) in Placebo arm will be corresponding volume of an authorised 0.9% saline solution . The maintenance doses of the 0.9% saline solution to be infused 7 times will be given every 21 (+/-4) days.

Interventions

NewGam 10%

Loading dose at baseline (Week 0) will be 2.0 g/kg NewGam . The maintenance doses to be infused 7 times will be 2.0 g/kg every 21 (+/-4) days.

Intervention Type: DRUG

Placebo

Loading dose at baseline (Week 0) in Placebo arm will be corresponding volume of an authorised 0.9% saline solution . The maintenance doses of the 0.9% saline solution to be infused 7 times will be given every 21 (+/-4) days.

Intervention Type: DRUG

NewGam 10%

Loading dose at baseline (Week 0) will be 2.0 g/kg NewGam in all three NewGam treatment arms. The maintenance doses to be infused 7 times will be 1.0 g/kg every 21 (+/-4) days.

Intervention Type: DRUG

NewGam 10%

Loading dose at baseline (Week 0) will be 2.0 g/kg NewGam in all three NewGam treatment arms. The maintenance doses to be infused 7 times will be 0.4 g/kg every 21 (+/-4) days.

Intervention Type: DRUG

Other Intervention Names

0.9% saline solution

Eligibility Criteria

Inclusion Criteria

• Patients diagnosed as having CIDP based on fulfilment of clinical criteria of the INCAT Group and the definite electrophysiological criteria for CIDP ; patients with MADSAM or pure motor CIDP will be included provided they fulfil these criteria
• Worsening of disability and objective increase in weakness or sensory deficit during the 6 months prior to screening
• >=18 years of age

Exclusion Criteria

• Unifocal forms of CIDP
• Pure sensory CIDP
• MMN with conduction block
• Treatment of CIDP with immunoglobulins (intravenous or subcutaneous) at any time prior to study entry
• Steroids of any type equivalent to prednisolone or prednisone > 10 mg/day or equivalent plasma exchange (PE) during the last 3 months prior to baseline visit
• Treatment with cyclosporin, methotrexate, mitoxantrone, mycophenolate mofetil, interferon or other immunosuppressive or immunomodulatory drugs during the three months prior to baseline visit
• Clinical evidence of peripheral neuropathy from another
• Known diabetes mellitus
• Other serious medical condition complicating assessment or treatment
• Thromboembolic events: patients with a history of deep vein thrombosis (DVT) within the last year prior to baseline visit or pulmonary embolism ever
• Known IgA deficiency with antibodies to IgA
• History of hypersensitivity, anaphylaxis or severe systemic response to immunoglobulin, blood or plasma derived products, or any component of NewGam
• Known blood hyperviscosity

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Octapharma

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Wolfgang Frenzel, MD

Role: STUDY_DIRECTOR

Octapharma

References

Bus SR, de Haan RJ, Vermeulen M, van Schaik IN, Eftimov F. Intravenous immunoglobulin for chronic inflammatory demyelinating polyradiculoneuropathy. Cochrane Database Syst Rev. 2024 Feb 14;2(2):CD001797. doi: 10.1002/14651858.CD001797.pub4.

Reference Type: DERIVED

PMID: 38353301 (View on PubMed)

Other Identifiers

NGAM-03

Identifier Type: -

Identifier Source: org_study_id