Retrospective Study to Determine Effect of Rebif and Tecfidera on Infections and Lymphocytes

Effect of Interferon Beta-1a SC 44 µg Three Times Weekly (Tiw) (Rebif) and Dimethyl Fumarate (DMF, Tecfidera) on Infections and Lymphocytes in Patients 50 Years or Older From a Single Center Chart Review

This study will be a single center, retrospective, pilot study to determine the effect of Rebif (interferon beta-1a) and Tecfidera (dimethyl fumarate) on infections on total lymphocyte counts, grade of lymphopenia, Cluster of Differentiation 4 (CD4) and Cluster of Differentiation 8 (CD8) counts and ratios in subjects aged 50 years and above with Relapsing-Remitting Multiple Sclerosis (RRMS).

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

34

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Massachusetts
      • Foxboro, Massachusetts, United States, 02035
        • Neurology Center of New England

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

Ages Eligible for Study

50 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

The study will include subjects aged 50 years or older with relapsing RRMS, identified from a feasibility assessment conducted at a single center in United States, who were treated with either interferon beta-1a SC 44 micro-gram or dimethyl fumarate between January 1, 2015 to December 31, 2015.

Description

Inclusion Criteria:

  • RRMS subjects who have been treated with interferon beta 1a SC 44 micro-gram thrice a week and dimethyl fumarate in inpatient or outpatient settings during the period from January 1, 2015 to December 31, 2015.
  • Subjects with at least one year of laboratory values post-index date to analyze lymphocyte counts, and CD4 and CD8 counts. The date of first blood draw for laboratory tests after January 1, 2015 will be defined as the subject's index date.

Exclusion Criteria:

- Subjects who have been on treatment for less than 1 year after their index date.

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

Cohorts and Interventions

Group / Cohort
Rebif (interferon beta 1a)
This study will retrospectively collect the data from the subjects who had been treated with Rebif subcutaneously (SC) at a dose of 44 micro-grams three times a week.
Tecfidera (dimethyl fumarate)
This study will retrospectively collect the data from the subjects who had been treated with Tecfidera.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Percentage of Subjects With One or More Infections
Time Frame: Up to 12 months
Up to 12 months

Secondary Outcome Measures

Outcome Measure
Time Frame
Percentage of Subjects With One or More Serious Infections
Time Frame: Baseline, 6 Months, 12 Months
Baseline, 6 Months, 12 Months
Percentage of Subjects With One or More Opportunistic Infections
Time Frame: Baseline, 6 Months, 12 Months
Baseline, 6 Months, 12 Months
Number of Infections per Subject
Time Frame: Baseline, 6 Months, 12 Months
Baseline, 6 Months, 12 Months
Number of Serious Infections per Subject
Time Frame: Baseline, 6 Months, 12 Months
Baseline, 6 Months, 12 Months
Number of Opportunistic Infections per Subject
Time Frame: Baseline, 6 Months, 12 Months
Baseline, 6 Months, 12 Months
Total Lymphocyte Levels
Time Frame: Baseline, 6 Months, 12 Months
Baseline, 6 Months, 12 Months
Percentage of Subjects With Lymphopenia Grades I, II, III and IV
Time Frame: Baseline, 6 Months, 12 Months
Baseline, 6 Months, 12 Months
Cluster of Differentiation 4 (CD4) and Cluster of Differentiation 8 (CD8) Counts
Time Frame: Baseline, 6 Months, 12 Months
Baseline, 6 Months, 12 Months
Cluster of Differentiation 4 (CD4) and Cluster of Differentiation 8 (CD8) Ratio
Time Frame: Baseline, 6 Months, 12 Months
Baseline, 6 Months, 12 Months
Occurrence of Adverse Events (AEs) and Serious Adverse Events (SAEs)
Time Frame: Baseline, 6 Months, 12 Months
Baseline, 6 Months, 12 Months

Collaborators and Investigators

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

Sponsor

Collaborators

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 (ACTUAL)

August 23, 2017

Primary Completion (ACTUAL)

May 11, 2018

Study Completion (ACTUAL)

May 11, 2018

Study Registration Dates

First Submitted

September 13, 2017

First Submitted That Met QC Criteria

September 13, 2017

First Posted (ACTUAL)

September 15, 2017

Study Record Updates

Last Update Posted (ACTUAL)

August 6, 2018

Last Update Submitted That Met QC Criteria

August 3, 2018

Last Verified

August 1, 2018

More Information

Terms related to this study

Other Study ID Numbers

  • MS200136_0077

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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