REsPonse to Interferon-Alpha in InterfeRon-β Neutralizing Antibody Positive Multiple Sclerosis Patients (REPAIR)

November 29, 2012 updated by: Melinda Magyari
The purpose of the study is to determine if Interferon-alfa is effective and safe in multiple sclerosis patients who developed neutralizing antibodies for Interferon-beta.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Patient with NAbs developed during IFN-β therapy do not have any longer beneficial effect of any IFN-β preparation and IFN-β has to be replaced with another therapy that may be less effective or carry along serious adverse effects. Hence, many NAb positive patients wish to continue IFN therapy, and these patients might benefit from treatment with IFN-α as both IFN-α and IFN-β are type I interferons that bind to the same interferon receptor (IFNAR). A full in vivo response to human IFN-α (Multiferon) comparable to that seen after IFN-β induction would suggest that the same therapeutic effect could be obtained with human IFN-α (Multiferon).We measure in vivo response of MxA 9-12 hours after administration of human IFN-α (Multiferon) and four other known IFN response markers measured with rt-PCR.

As controls, NAb negative MS patients with a full in vivo MxA response will be studied.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
10

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • The subject must give written informed consent prior to any study related activities
  • Subject age must be between 18 and 55 (both included)
  • The subject must have MS according to McDonald criteria
  • The subject must have disability equivalent to EDSS of 5.5 or less
  • The subject must have been treated with any IFN-β preparation for at least 12 months at any time
  • The subject must have been shown to be NAb positive and without no in vivo mRNA MxA response within the last 12 months
  • The subject must be prepared and considered able to follow the protocol

Exclusion Criteria:

  • The subject must not have conditions that might give rise to similar symptoms as MS
  • The subject must not have received any immunomodulatory or immunosuppressive treatment (other than IFN-β or glatiramer acetate) 6 months prior to the screening visit
  • The subject must not have received mitoxantrone, cyclophosphamide, treosulphane, natalizumab, daclizumab, rituximab, alemtuzumab, cladribine, or any experimental therapy at any time
  • The subject must not have undergone previous total body irradiation, total lymphoid irradiation, stem cell treatment, autologous bone marrow transplantation or allogenic bone marrow transplantation.
  • The subject must not have received treatment with glucocorticoids or ATCH later than 2 month prior to the screening visit
  • The subject must not have alcohol and drug dependency
  • The subject must not have cardiac or renal insufficiency
  • The subject must not have any systemic disease that can influence the subject's safety or compliance
  • Subjects may be male or female. Women of child-bearing potential must be sexually inactive or practice a medically acceptable method of birth control. Acceptable methods include oral contraceptive, contraceptive patch, long-acting injectable contraceptive, or double-barrier method (condom or IUD with spermicide)
  • The subject must not have known or suspected allergy to IFN-α
  • The subject must not have participated in any other study within 3 months prior to the screening visit

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: IFN-alfa
One single injection of human leukocyte IFN-α (Multiferon® ) 6 MIU s.c.
Drug: Interferon-beta and human leukocyte Interferon-α
One single injection of interferon(IFN)- β and one single injection of human leukocyte IFN-α (Multiferon® ) 6 MIU s.c. with 1-7 days follow-up.
Other Names:
  • IFN-beta : Rebif, Betaferon
  • IFN-alfa: Multiferon®
Experimental: Interferon-beta
One single injection of IFN-beta followed by blood test for MxA9.12 hours after injection
Drug: Interferon-beta and human leukocyte Interferon-α
One single injection of interferon(IFN)- β and one single injection of human leukocyte IFN-α (Multiferon® ) 6 MIU s.c. with 1-7 days follow-up.
Other Names:
  • IFN-beta : Rebif, Betaferon
  • IFN-alfa: Multiferon®

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
In vivo mRNA MxA response
Time Frame: 9-12 hours after injection of one dose Interferon-alfa
The primary objective of this study is to compare the in vivo mRNA MxA response to IFN-α with the in vivo mRNA MxA response to IFN-β
9-12 hours after injection of one dose Interferon-alfa

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Determining response marker: IL10
Time Frame: 9-12 hours after adminstration of Interferon-alfa
The in vivo response to IFN-α of known IFN response marker: interleukin-10 (IL10),
9-12 hours after adminstration of Interferon-alfa
Determining response marker:TRAIL
Time Frame: 9-12 hours after administration of IFN-alfa
Determining tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)
9-12 hours after administration of IFN-alfa
Determining response marker IFI27
Time Frame: 9-12 timer after administration of IFN-alfa
Determining IFN-α-inducible protein 27 (IFI27),
9-12 timer after administration of IFN-alfa
Determining response marker:CXCL10 at mRNA level
Time Frame: 9-12 hours after IFN-alfa administration
Determining :Chemokine CXCL10 at mRNA level
9-12 hours after IFN-alfa administration
Changes i Neutralizing antibodies Nabs
Time Frame: 9-12 hours after administration of IFN-alfa
Measuring changes in Neutralising antibodies 9-12 hours after treatment with one dose IFN-alfa
9-12 hours after administration of IFN-alfa

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Melinda Magyari

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
University of Copenhagen

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Melinda Magyari, M.D., Danish Multiple Sclerosis Research Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 1, 2010

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2011

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 1, 2011

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 8, 2010

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 27, 2010

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 28, 2010

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 30, 2012

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 29, 2012

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2012

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2009-016824-29 (EudraCT Number)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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