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Chronic Inflammatory Demyelinating PolyneuropathyPhase 3NCT01184846

Study of Efficacy and Safety of Privigen in Subjects With Chronic Inflammatory Demyelinating Polyneuropathy

A Phase 3 study testing 10% liquid formulation of human immunoglobulin in people with Chronic Inflammatory Demyelinating Polyneuropathy, run by CSL Behring at 22 sites in 5 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The objective of this study is to demonstrate the efficacy and safety of Privigen in subjects with CIDP. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
10% liquid formulation of human immunoglobulin
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
31 participants
Where
22 sitesin 5 countries
Study dates
Nov 2010to Nov 2011
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • IVIG-untreated subjects:
  • Either subjects with newly diagnosed CIDP (developing over at least 2 months) or subjects with an IVIG treatment interruption for at least 1 year with a progressive disease (deteriorating in the last 2 months) prior to enrolment.
  • Actual diagnosis (including electrophysiology) of CIDP with progressive or relapsing dysfunction from motor and sensory or symmetric motor nerve only in at least 1 limb resulting from neuropathy. Criteria for definite or probable CIDP according to EFNS/PNS guideline.
  • Age ≥18 years.
  • Male or female.
  • Written informed consent for study participation obtained before undergoing any study specific procedures.
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  • IVIG-pretreated subjects:
  • Being treated regularly with IVIG on a fixed cycle length of 2 to 6 weeks ± 5 days in the last 6 months, on a fixed dosage of ± 20 % in the last 6 months and deteriorating by at least 1 INCAT score point during the Washout Period of up to 10 weeks (except for an increase from 0 to 1 solely due to upper limb score).
  • Historic diagnosis of CIDP with progressive or relapsing dysfunction from motor and sensory or symmetric motor nerve only in at least 1 limb resulting from neuropathy. Criteria for definite or probable CIDP according to EFNS/PNS guideline.
  • Age ≥18 years.
  • Male or female.
  • Written informed consent for study participation obtained before undergoing any study specific procedures.

Who cannot join

  • A motor syndrome that fulfils criteria for multifocal motor neuropathy (MMN) with conduction block (i.e., upper limb motor weakness without sensory deficit and with a 50% decrease in action potential amplitude or area on proximal compared with distal stimulation in motor nerves).
  • CIDP with monoclonal gammopathy of uncertain significance (CIDP-MGUS) with anti-MGUS antibodies and patients with distal acquired demyelinating symmetric (DADS)neuropathy.
  • Any disease (mainly neurological or chronic orthopedic) that may cause symptoms or may interfere with treatment or outcome assessments with the INCAT (e.g., diphtheria, drug or toxin exposure and diabetes mellitus likely to have caused the neuropathy, IgM paraproteinemia, familial neuropathy, borreliosis with radiculopathy, post-polio-syndrome,M. Parkinson, stroke).
  • Current malignancy.
  • History of cardiac insufficiency (New York Heart Association [NYHA] III/IV), cardiomyopathy, significant cardiac dysrhythmia requiring treatment, unstable or advanced ischemic heart disease, congestive heart failure or severe hypertension.
  • History of thrombotic episodes (deep vein thrombosis, myocardial infarction, cerebrovascular accident).
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  • Migraine associated with IVIG infusion in the last 3 months prior to enrolment.
  • Known allergic or other severe reactions to blood products including intolerability to previous IVIG (i.e. severe headache, hypersensitivity, intravascular hemolysis).
  • Subjects with serum IgA level less than 50% of the lower normal limit.
  • Known hyperprolinemia.
  • Any condition (including alcohol, drug or medication abuse) that is likely to interfere with evaluation of the study product or satisfactory conduct of the study.
  • Plasma exchange 3 months prior to enrolment.
  • Treatment with immunomodulatory agents others than steroids, methotrexate or azathioprine (e.g. interferon, TNF-α inhibitors) within 6 months before enrolment.
  • Treatment with rituximab in the 12 months before enrolment.
  • Abnormal laboratory parameters: creatinine > 1.5 times the upper normal limit (UNL), lactate dehydrogenase (LDH) > 1.5 times the UNL, C-reactive protein (CRP) > 1.5 times the UNL, hemoglobin (Hb) < 10 g/dL.
  • Ongoing HIV, hepatitis C and hepatitis B infection.
  • Participation in another clinical study (or use of another investigational medicinal product [IMP]) within 3 months prior to enrolment
  • Not able to comply with study procedures and treatment regimen.
  • Employee at the study site, or spouse/partner or relative of any study staff (e.g., investigator, sub-investigators, or study nurse).
  • Pregnancy or nursing mother.
  • Intention to become pregnant during the course of the study.
  • Female subjects of childbearing potential either not using, or not willing to use, a medically reliable method of contraception for the entire duration of the study, or not sexually abstinent for the entire duration of the study, or not surgically sterile.

Trial locations and contacts

22 sites in 5 countries.

22 sites in 5 countries

Germany7 sites
  • Study Site

    Berlin

  • Study Site

    Feldberger Seenlandschaft

  • Study Site

    Göttingen

  • Study Site

    Itzehoe

  • Study Site

    Prien am Chiemsee

  • Study Site

    Schwedt

  • Study Site

    Würzburg

Other trials in Germany

France5 sites
  • Study Site

    Limoges

  • Study Site

    Lyon

  • Study Site

    Marseille

  • Study Site

    Montpellier

  • Study Site

    Paris

Other trials in France

Belgium4 sites
  • Study Site

    Brussels

  • Study Site

    Edegem

  • Study Site

    Ghent

  • Study Site

    Leuven

Other trials in Belgium

Finland3 sites
  • Study Site

    Helsinki

  • Study Site

    Turku

  • Study Site

    Vaasa

Other trials in Finland

Poland3 sites
  • Study Site

    Krakow

  • Study Site

    Lublin

  • Study Site

    Wroclaw

Other trials in Poland

About this study

Official title: A Single-arm Study to Demonstrate the Efficacy and Safety of Privigen in the Treatment of Subjects With Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)

The objective of this study is to demonstrate the efficacy and safety of Privigen in subjects with CIDP.

Being tested
10% liquid formulation of human immunoglobulin
Keywords
Chronic inflammatory demyelinating polyneuropathy, CIDP
Medical subject headings
Polyradiculoneuropathy, Chronic Inflammatory Demyelinating

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • 10% liquid formulation of human immunoglobulinBiological

    Also called IgPro10; Privigen

Study groups in NCT01184846
Study groupRoleWhat they receive
IgPro10Experimental10% liquid formulation of human immunoglobulin (IgPro10). IgPro10 will be administered by IV infusion as one induction dose of 2 g/kg body weight (bw), followed by seven 3-weekly maintenance doses of 1 g/kg bw.
Receives: Biological: 10% liquid formulation of human immunoglobulin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Responder Rate

    Percentage of responders based on the adjusted Inflammatory Neuropathy Cause and Treatment Scale (INCAT) score.

    Responders were defined as those subjects who: 1) demonstrated a "clinically meaningful improvement" between baseline and Week 25, or 2) who were discontinued from the study for any reason after the start of IgPro10 treatment but with "clinically meaningful improvement" at the last study visit.

    "Clinically meaningful improvement" was a decrease of at least 1 adjusted INCAT score point excluding an improvement of one point in the total score if this improvement was only due to a decrease in the upper limb score of 1 to 0.

    Measured: 25 weeks

Secondary outcomes (13)
  1. Change in Adjusted INCAT Score

    The change in INCAT score was determined at the completion visit compared to baseline and to the last measurement under the previous IVIG treatment using a non-parametric analysis to calculate the Hodges-Lehmann point estimate and the corresponding Tukey confidence interval on an exploratory basis.

    The INCAT disability score ranges from 0 to 10 and is the sum of arm and leg disability each rated between 0 and 5 (where arm = 0 indicates 'no upper limb problems' and arm = 5 indicates 'inability to use either arm for any purposeful movement', and leg = 0 indicates 'walking not affected', and leg = 5 indicates 'restricted to wheelchair, unable to stand and walk a few steps with help'). Thus, a higher INCAT disability score indicates greater disability. Negative values for change in INCAT score indicate improvement, with a more negative value indicating greater improvement compared with the value at baseline.

    Measured: Up to 34 weeks

  2. Change in Maximum Grip Strength

    Change in maximum grip strength of the dominant hand. A non-parametric analysis was used to calculate the Hodges-Lehmann point estimate and the corresponding Tukey confidence interval on an exploratory basis. Positive values for change in maximum grip strength indicate improvement.

    Measured: Up to 34 weeks

  3. Change in Medical Research Council Sum Scale (MRC)

    The change in MRC sum score was determined at the completion visit compared to baseline and to the last measurement under the previous IVIG treatment using a non-parametric analysis to calculate the Hodges-Lehmann point estimate and the corresponding Tukey confidence interval on an exploratory basis.

    The 80-point MRC sum score is the sum of scores for eight bilateral (left and right side) muscle groups, each rated between 0 (no visible contraction) to 5 (normal movement). A higher MRC sum score indicates greater muscle contraction/limb movement. Positive values for change in MRC sum score indicate improvement, with a more positive value indicating greater muscle contraction/ limb movement compared with the value at baseline.

    Measured: Up to 34 weeks

  4. Immunoglobulin G (IgG) Level

    Measured: At baseline and at Weeks 7, 13 and 19 (levels determined immediately before and after IVIG infusion), and at completion visit (Week 25)

  5. Frequency of Adverse Events (AEs)

    Overall rate of AEs per infusion.

    Measured: For the duration of the study, up to 34 weeks

  6. Severity of AEs Per Infusion

    The severity of each AE was to be graded by the investigator as follows:

    • Mild: Symptoms were easily tolerated and there was no interference with daily activities.
    • Moderate: Discomfort enough to cause some interference with daily activities.
    • Severe: Incapacitating with inability to work or do usual activity.

    Measured: For the duration of the study, up to 34 weeks

  7. Severity of AEs Per Subject

    The severity of each AE was to be graded by the investigator as follows:

    • Mild: Symptoms were easily tolerated and there was no interference with daily activities.
    • Moderate: Discomfort enough to cause some interference with daily activities.
    • Severe: Incapacitating with inability to work or do usual activity.

    Measured: 34 weeks

  8. Relatedness of AEs Per Infusion

    The causal relationship of an AE to the study drug was to be assessed and assigned by the investigator.

    Measured: For the duration of the study, up to 34 weeks

  9. Relatedness of AEs Per Subject

    The causal relationship of an AE to the study drug was to be assessed and assigned by the investigator.

    Measured: For the duration of the study, up to 34 weeks

  10. Mean Change in Systolic and Diastolic Blood Pressure During Infusion

    Systolic and diastolic blood pressure (BP) were measured before the start of IgPro10 infusion, at 30 minutes and 1 hour after the start of infusion, then every hour until the end of infusion and at 1 hour after the end of infusion. Mean changes from the pre-infusion value to each of the post-infusion values were calculated for each infusion, and the mean value and standard deviation (SD) of these individual mean changes is reported.

    Measured: At Days 1 to 5 and at Weeks 4, 7, 10, 13, 16, 19 and 22.

  11. Mean Change in Pulse Rate During Infusion

    Pulse rate was measured before the start of IgPro10 infusion, at 30 minutes and 1 hour after the start of infusion, then every hour until the end of infusion and at 1 hour after the end of infusion. Mean changes from the pre-infusion value to each of the post-infusion values were calculated for each infusion, and the mean value and SD of these individual mean changes is reported.

    Measured: At Days 1 to 5 and at Weeks 4, 7, 10, 13, 16, 19 and 22.

  12. Mean Change in Body Temperature During Infusion

    Body temperature was measured before the start of IgPro10 infusion, at 30 minutes and 1 hour after the start of infusion, then every hour until the end of infusion and at 1 hour after the end of infusion. Mean changes from the pre-infusion value to each of the post-infusion values were calculated for each infusion, and the mean value and SD of these individual mean changes is reported.

    Measured: At Days 1 to 5 and at Weeks 4, 7, 10, 13, 16, 19 and 22.

  13. Number of Subjects With Normal/Abnormal Not Clinically Significant (ANCS) Value at Baseline Changing to Abnormal Clinically Significant (ACS) Value at Completion Visit in Routine Laboratory Parameters.

    Number of subjects with changes from normal/ANCS values at baseline to ACS values at Completion Visit in routine laboratory parameters including hematology and serum chemistry analytes. Investigators flagged each laboratory value as normal, ANCS or ACS at each assessment timepoint.

    Measured: At Day 1 (baseline) and at Completion Visit (Week 25 or early discontinuation)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Aug 2010 (estimated)
  2. Study startNov 2010
  3. Primary completionNov 2011
  4. Study completionNov 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
31 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01184846
Sponsor's protocol ID
IgPro10_3001
Other IDs
1504, 2009-017672-24, 2009
Status last verified
Jun 2024
First submitted
18 Aug 2010
Last updated
25 Jun 2024
Data monitoring committee
Yes

Publications

  • Leger JM, De Bleecker JL, Sommer C, Robberecht W, Saarela M, Kamienowski J, Stelmasiak Z, Mielke O, Tackenberg B, Shebl A, Bauhofer A, Zenker O, Merkies IS; PRIMA study investigators. Efficacy and safety of Privigen((R)) in patients with chronic inflammatory demyelinating polyneuropathy: results of a prospective, single-arm, open-label Phase III study (the PRIMA study). J Peripher Nerv Syst. 2013 Jun;18(2):130-40. doi: 10.1111/jns5.12017.

    PubMed 23781960
  • Merkies ISJ, Lawo JP, Edelman JM, De Bleecker JL, Sommer C, Robberecht W, Saarela M, Kamienowski J, Stelmasiak Z, Mielke O, Tackenberg B, Leger JM; PRIMA trial investigators. Minimum clinically important difference analysis confirms the efficacy of IgPro10 in CIDP: the PRIMA trial. J Peripher Nerv Syst. 2017 Jun;22(2):149-152. doi: 10.1111/jns.12204. No abstract available.

    PubMed 28594116

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing 10% liquid formulation of human immunoglobulin in people with Chronic Inflammatory Demyelinating Polyneuropathy, run by CSL Behring at 22 sites in 5 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 12 inclusion and 22 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 25 Jun 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 22 sites in Germany, France, Belgium, Finland, Poland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 4 Apr 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Responder Rate (time frame: 25 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01184846, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Jun 2024.

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