Dose-Escalation Study of T Cell Vaccine in Multiple Sclerosis

NCT ID: NCT00587691

Last Updated: 2017-01-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1/PHASE2

Total Enrollment

16 participants

Study Classification

INTERVENTIONAL

Study Start Date

2002-07-31

Study Completion Date

2008-12-31

Brief Summary

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The purpose of the study is 1) to study the safety and tolerability of escalating doses of myelin peptide reactive T cells in MS patients and 2) to study the clinical effectiveness of T Cell Vaccine ion the clinical course of MS.

Detailed Description

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The principle of TCV is similar to that of traditional microbial vaccination where attenuated infectious agents are used to stimulate protective immune responses. Because pathogentic autoreactive T cells are viewed as pathogens in T cell-mediated autoimmune diseases, they can be used, as a vaccine to prevent and treat the diseases in which they are able to induce.

Conditions

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Multiple Sclerosis, Relapsing-Remitting Multiple Sclerosis, Secondary Progressive

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Dose Level 1

6-9 million MRTC

Group Type EXPERIMENTAL

Tovaxin Autologous T Cell Vaccine

Intervention Type BIOLOGICAL

Primary Series (x1): 4 subcutaneous injections (wks 0, 4, 12 and 20 with 52 week evaluable period.

Retreatment Series (x3): 3 subcutaneous injections (wks 0, 4, and 8) with 26-week evaluable periods.

Retreatment Series (x3): 5 subcutaneous injections (wks 0, 8, 26, 24 and 32) with 52-week evaluable periods.

Dose Level 2

30-45 million MRTC

Group Type EXPERIMENTAL

Tovaxin Autologous T Cell Vaccine

Intervention Type BIOLOGICAL

Primary Series (x1): 4 subcutaneous injections (wks 0, 4, 12 and 20 with 52 week evaluable period.

Retreatment Series (x3): 3 subcutaneous injections (wks 0, 4, and 8) with 26-week evaluable periods.

Retreatment Series (x3): 5 subcutaneous injections (wks 0, 8, 26, 24 and 32) with 52-week evaluable periods.

Dose Level 3

60-90 million MRTC

Group Type EXPERIMENTAL

Tovaxin Autologous T Cell Vaccine

Intervention Type BIOLOGICAL

Primary Series (x1): 4 subcutaneous injections (wks 0, 4, 12 and 20 with 52 week evaluable period.

Retreatment Series (x3): 3 subcutaneous injections (wks 0, 4, and 8) with 26-week evaluable periods.

Retreatment Series (x3): 5 subcutaneous injections (wks 0, 8, 26, 24 and 32) with 52-week evaluable periods.

Interventions

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Tovaxin Autologous T Cell Vaccine

Primary Series (x1): 4 subcutaneous injections (wks 0, 4, 12 and 20 with 52 week evaluable period.

Retreatment Series (x3): 3 subcutaneous injections (wks 0, 4, and 8) with 26-week evaluable periods.

Retreatment Series (x3): 5 subcutaneous injections (wks 0, 8, 26, 24 and 32) with 52-week evaluable periods.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Stable MS disease within 30 days prior to enrollment
* EDSS Score between 2 and 8 inclusively
* Failed to respond to or cannot tolerate at least 1 or more of the currently approved drugs for MS.

Exclusion Criteria

* Women who are pregnant or breast-feeding or who plan to become pregnant during the study
* Has taken immunomodulating drugs within 60 days prior to screening
* HIV positive
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Opexa Therapeutics, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jaye Thompson, PhD

Role: STUDY_DIRECTOR

Opexa Therapeutics

Locations

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Bellaire Neurology

Bellaire, Texas, United States

Site Status

Baylor College of Medicine

Houston, Texas, United States

Site Status

Countries

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United States

References

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Zhang J. T-cell vaccination in multiple sclerosis: immunoregulatory mechanism and prospects for therapy. Crit Rev Immunol. 2001;21(1-3):41-55.

Reference Type BACKGROUND
PMID: 11642613 (View on PubMed)

Zhang J. T-cell vaccination for autoimmune diseases: immunologic lessons and clinical experience in multiple sclerosis. Expert Rev Vaccines. 2002 Oct;1(3):285-92. doi: 10.1586/14760584.1.3.285.

Reference Type BACKGROUND
PMID: 12901569 (View on PubMed)

Zhang JZ, Rivera VM, Tejada-Simon MV, Yang D, Hong J, Li S, Haykal H, Killian J, Zang YC. T cell vaccination in multiple sclerosis: results of a preliminary study. J Neurol. 2002 Feb;249(2):212-8. doi: 10.1007/pl00007867.

Reference Type BACKGROUND
PMID: 11985389 (View on PubMed)

Other Identifiers

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2000-03

Identifier Type: -

Identifier Source: org_study_id

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