A Serologic Study to Correlate Beta-IFN NAb Titers to Beta-IFN Induced Biomarker Response in Patients With Multiple Sclerosis
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ClinicalTrials.gov Identifier: NCT00288990 |
Recruitment Status :
Completed
First Posted : February 9, 2006
Last Update Posted : December 24, 2007
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Study Title: A Serologic Study to Correlate b-IFN NAb titers to b-IFN Induced Biomarker Response in Patients with Multiple Sclerosis
Objectives: Subjects currently on any of the three b-IFN preparations (Avonex (Interferon b-1a 30 mcg IM Q 7 days), Rebif (Interferon b-1a 22 or 44mcg SC TIW), or Betaseron (Interferon b-1b 250mcg SC QOD)) will be enrolled to one of 3 groups:
Group 1: Approximately 200 subjects will be enrolled who are NAb+ (titer ³ 20NU/ml) Group 2: Approximately 50 subjects will be enrolled who are BAb- (titer <8U) and NAb- (titer <20 NU/ml) Group 3: Approximately 50 subjects will be enrolled who are BAb+ (titer ³8U) and NAb- (titer <20 NU/ml)
The primary objective of this study is to compare baseline b-IFN induced MxA mRNA response in neutralizing antibody positive (NAb+, titers ³ 20NU/ml, Group 1) vs. antibody negative (NAb-, titers < 20NU/ml, BAb-, titers <8U, Group 2) patients.
Secondary objectives are:
- To compare b-IFN induced MxA mRNA response in neutralizing antibody positive (NAb+, titers ³ 20NU/ml, Group 1) vs. antibody negative (NAb-, titers < 20NU/ml, BAb-, titers <8U, Group 2) patients at the month 6 visit.
- To compare b-IFN induced biomarker response (viperin, IFIT1) in neutralizing antibody positive (NAb+, titers ³ 20NU/ml, Group 1) vs. antibody negative (NAb-, titers < 20NU/ml, BAb-, titers <8U, Group 2) patients (data compared at baseline and month 6 visits)
- To compare b-IFN induced biomarker response (MxA, viperin, IFIT1) in neutralizing antibody positive (NAb+, titers ³ 20NU/ml, Group 1) vs. BAb+ (titers ³8U)/NAb- (titers <20 NU/ml, Group 3) patients at baseline and month 6 visits.
- To correlate NAb titer levels with b-IFN induced biomarker response (data taken from baseline and month 6 visits from Group 1).
- To compare b-IFN induced biomarker response (MxA, viperin, IFIT1) in BAb-/NAb- patients (Group 2) vs. BAb +/NAb- patients (Group 3) in order to determine if BAbs affect b-IFN induced biomarker response (data compared at baseline and month 6 visits).
Tertiary objectives are:
1. To explore patient characteristics that may predict NAb positivity.
Design: This is a multi-center, open-label study of approximately 300 (200 NAb+ and 100 NAb- (50 BAb+ and 50 BAb-)) MS patients that will compare b-IFN induced biomarker response following b-IFN injection in neutralizing antibody positive vs. antibody negative patients.
Study Population: Approximately 300 subjects (200 in Group 1, 50 in Group 2, and 50 in Group 3) will be recruited for the study.
Inclusion Criteria: To be eligible for entry into this study, candidates must meet all of the following eligibility criteria at the time of randomization:
- Patients (male or female) diagnosed with relapsing forms of MS.
- Currently being treated with the same b-IFN (in accordance with FDA approved dosing and schedules) for 12 to 48 months inclusive.
- All levels of disability
- Age 18-65 years inclusive
- Subjects must be willing to be followed for the 6-month study period.
Exclusion Criteria: Candidates will be excluded from study entry if any of the following exclusion criteria exist at the time of study initiation.
- Patients with prior b-IFN NAb test (whether positive or negative).
- Patients who are currently being treated or have been treated within 6 months prior to screening with combination therapy (b-IFN plus any other immunosuppressant/immunomodulatory) other than IV steroids (either pulse or for a relapse).
- Unwillingness or inability to comply with the requirements of this protocol including the presence of any condition (physical, mental, or social) that is likely to affect the subject's ability to comply with the study protocol.
- Any other reasons that, in the opinion of the Investigator, the subject is determined to be unsuitable for enrollment into this study.
Treatment Groups: This is a multi-center, open-label study of approximately 300 (200 NAb+ patients and 100 NAb- patients (50 BAb+ and 50 BAb-)) relapsing MS patients that will compare b-IFN induced biomarker response following b-IFN injection in neutralizing antibody positive vs. antibody negative patients.
Subjects currently on any of the three b-IFN preparations (Avonex (Interferon b-1a 30 mcg IM Q 7 days), Rebif (Interferon b-1a 22 or 44mcg SC TIW), or Betaseron (Interferon b-1b 250mcg SC QOD)) will be enrolled to one of 3 groups:
Group 1: Approximately 200 subjects will be enrolled who are NAb+ (titer ³ 20NU/ml)
Group 2: Approximately 50 subjects will be enrolled who are BAb- (titer <8U) and NAb- (titer <20 NU/ml)
Group 3: Approximately 50 subjects will be enrolled who are BAb+ (titer ³8U) and NAb- (titer <20 NU/ml)
Condition or disease |
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Multiple Sclerosis |
Study Type : | Observational |
Estimated Enrollment : | 300 participants |
Observational Model: | Case-Control |
Time Perspective: | Prospective |
Official Title: | Impact of Neutralizing Antibodies on Interferon Responsive Genes Highlights Biomarker Response. |
Study Start Date : | January 2006 |
Actual Study Completion Date : | August 2007 |

Group/Cohort |
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1
subjects who are NAb positive
|
2
Subjects who are antibody negative
|
3
subjects who are BAb positive
|

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Ages Eligible for Study: | 18 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Patients (male or female) diagnosed with relapsing forms of MS.
- Currently being treated with the same b-IFN (in accordance with FDA approved dosing and schedules) for 12 to 48 months inclusive.
- All levels of disability
- Age 18-65 years inclusive
- Subjects must be willing to be followed for the 6-month study period.
Exclusion Criteria:
- Patients with prior b-IFN NAb test (whether positive or negative).
- Patients who are currently being treated or have been treated within 6 months prior to screening with combination therapy (b-IFN plus any other immunosuppressant/immunomodulatory) other than IV steroids (either pulse or for a relapse).
- Unwillingness or inability to comply with the requirements of this protocol including the presence of any condition (physical, mental, or social) that is likely to affect the subject's ability to comply with the study protocol.
- Any other reasons that, in the opinion of the Investigator, the subject is determined to be unsuitable for enrollment into this study.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00288990

Study Director: | Thorsten Eickenhorst, MD | Biogen |
Responsible Party: | Biogen Idec MD, Biogen Idec |
ClinicalTrials.gov Identifier: | NCT00288990 |
Other Study ID Numbers: |
008-05-AVX |
First Posted: | February 9, 2006 Key Record Dates |
Last Update Posted: | December 24, 2007 |
Last Verified: | December 2007 |
MS |
Multiple Sclerosis Sclerosis Pathologic Processes Demyelinating Autoimmune Diseases, CNS Autoimmune Diseases of the Nervous System |
Nervous System Diseases Demyelinating Diseases Autoimmune Diseases Immune System Diseases |