BHT-3009 Immunotherapy in Relapsing Remitting Multiple Sclerosis

February 7, 2008 updated by: Bayhill Therapeutics
The purpose of this study is to determine if BHT-3009 decreases inflammation (measured by gadolinium enhancing MRI lesions) in the brains of people with relapsing remitting multiple sclerosis.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

People with multiple sclerosis are thought to have abnormal immunity. Usually the body's immune system attacks only foreign substances, but people with MS have abnormal immunity, where the immune system attacks normal proteins, one of which is a protein found in the brain called MBP (myelin basic protein). This abnormal immunity causes inflammation in the brain resulting in nerve damage. BHT-3009 is a drug that is designed to decrease this abnormal immunity to MBP. BHT-3009 is a DNA plasmid that contains the gene for MBP. Plasmids are circular pieces of DNA that are being tested in clinical trials for their ability to alter patients' immune systems. Two different doses of BHT-3009 will be tested to determine if there are any differences in their safety or effects on inflammation.

Treatment in this study is 3 doses every two weeks for 6 weeks, followed by a dose every 4 weeks for a total of 13 doses in 44 weeks.

Study Type

Interventional

Enrollment

252

Phase

  • 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

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Definite diagnosis of multiple sclerosis by the McDonald criteria.
  2. Screening cranial MRI demonstrating lesions consistent with MS.
  3. One or more relapses within the previous year.
  4. Clinically stable (no relapses) for > 50 days before beginning screening procedures and during the screening period.
  5. EDSS 0 to 3.5 inclusive.
  6. Age > 17 years and < 56 years.
  7. Willing and able to give informed consent.
  8. WBC >3,000; platelets >100,000; hemoglobin > 10.0 g/dl.
  9. AST, ALT, bilirubin < 2.0 x upper limit of normal.
  10. Creatinine < 2.0 x upper limit of normal.
  11. Negative test for HIV.

Exclusion Criteria:

  1. Primary progressive, secondary progressive or progressive relapsing MS.
  2. More than 5 gadolinium-enhancing lesions on the first screening MRI.
  3. High-dose corticosteroids (e.g. > 500 mg methylprednisolone or equivalent per day for 3 or more days) within 50 days prior to beginning screening procedures.
  4. Previous stem cell transplantation, total lymphoid radiation, or cytotoxic therapy.
  5. Treatment with interferon, glatiramer acetate or other approved disease-modifying agent for > 180 days (lifetime total of all agents).
  6. Treatment with an approved disease modifying agent within 180 days of beginning screening procedures.
  7. Previous treatment of MS with an experimental agent including off-label use of approved drugs. (Allowed with approval of the Medical Monitor.)
  8. Prior therapy with natalizumab (Tysabri).
  9. Pregnant or lactating women.
  10. Unwilling to use a medically acceptable form of birth control (e.g. hormonal contraception, intrauterine device, double barriers, sterilization of self or partner).
  11. Clinically significant ECG abnormalities (e.g. acute ischemia or life-threatening arrhythmia).
  12. Medical condition or social circumstances that would in the opinion of the investigator prevent full participation in the trial or evaluation of study endpoints.
  13. Implanted pace makers, defibrillators or other metallic objects on or inside the body that limit performing MRI scans.
  14. Known hypersensitivity or allergy to gadolinium.

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Evaluate the effect of BHT-3009 on the mean four-week rate of occurrence of new gadolinium (Gd) enhancing MRI lesions in relapsing remitting MS.

Secondary Outcome Measures

Outcome Measure
Evaluate the safety and tolerability of intramuscular injections of BHT-3009 given for a total of one year.
Evaluate the effect of BHT-3009 on other cranial MRI measures.
Describe the effect of BHT-3009 therapy on relapse rate.
Describe the effect of BHT-3009 on subject disability scores.

Collaborators and Investigators

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

Sponsor

Bayhill Therapeutics

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.

Helpful Links

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

February 1, 2006

Study Completion

June 1, 2007

Study Registration Dates

First Submitted

September 27, 2006

First Submitted That Met QC Criteria

September 27, 2006

First Posted (Estimate)

September 29, 2006

Study Record Updates

Last Update Posted (Estimate)

February 11, 2008

Last Update Submitted That Met QC Criteria

February 7, 2008

Last Verified

February 1, 2008

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • BHT-3009-03

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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