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Assessment of Lesion Activity Analysis in the Avonex- Steroid Azathioprine (ASA) Study

Information source: University at Buffalo
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Multiple Sclerosis, Relapsing-remitting

Intervention: MRI (Device)

Phase: N/A

Status: Active, not recruiting

Sponsored by: University at Buffalo

Official(s) and/or principal investigator(s):
Robert Zivadinov, MD,PhD,FAAN, Principal Investigator, Affiliation: Buffalo Neuroimaging Analysis Center


- To examine short- and long-term value of appearance of new active lesions in predicting

extent of cortical and subcortical deep gray matter (SDGM) atrophy over 5 years in ASA (Avonex- Steroid-Azathioprine)study.

- To explore how accumulation of cortical and SDGM atrophy over 5 years differs with

respect to the number of new active lesions or amount of disease activity, in early relapsing-remitting multiple sclerosis (RRMS) patients who did or did not develop sustained disability progression.

- To examine the relationship between development of cortical and SDGM atrophy and

regional likelihood of development of new active lesions over 5 years.

Clinical Details

Official title: Assessment of Lesion Activity Analysis in the Avonex- Steroid Azathioprine (ASA) Study

Study design: Observational Model: Cohort, Time Perspective: Retrospective

Primary outcome: Lesion Activity

Detailed description: Historically, MS has been classified as a disease predominantly affecting the white matter (WM) of the central nervous system. However, pathological changes in gray matter (GM) are increasingly recognized as an important component of the MS disease process. Advances in MRI have enabled detection of changes in GM morphology. The ASA study was a placebo-controlled trial that evaluated efficacy of Avonex® alone and in combination with azathioprine (AZA) or AZA and corticosteroids as initial MS therapy in 181 patients with early RRMS over 5 years. The study was conducted in the Czech Republic, and all clinical and MRI examinations were concluded at 5 years. No study has evaluated the evolution of cortical and SDGM atrophy in relation to global or regional accumulation of active lesions and/or occurrence of relapses both from predictive short- and long-term perspective. The ASA study provides a unique opportunity to prospectively study the impact of cortical and SDGM atrophy accumulation on long-term disability progression in a defined cohort of early RRMS patients who presented with various amount of disease activity, as measured by the appearance of new active lesions and occurrence of relapses. By assessing lesion activity in the 0-6 and 6-12 months in the ASA study we will be able to evaluate predictive value for development of cortical and SDGM atrophy in early RRMS patients over 5 years with respect to the number of new active lesions or amount of disease activity in the first year. We will also evaluate lesion development from 12-60 months in relation to development of cortical and SDGM atrophy. We will also analyze accumulation of cortical and SDGM atrophy in early RRMS patients who will or will not develop sustained disability progression, based on the number of new active lesions or amount of clinical and MRI disease activity in short- and long-term. Regional classification of new active lesions over 5 years in cortical, subcortical and fossa posterior will allow prospective examination of cortical and SDGM atrophy and appearance of the new lesions.


Minimum age: 18 Years. Maximum age: 55 Years. Gender(s): Both.


Inclusion Criteria:

- Enrolled into the 2-year, double-blind, placebo-controlled ASA study and entered 3

year extension study

- MRI was performed on all patients using a 1. 5 T magnet

Exclusion Criteria:

- MRI images unable to be processed

- All 5 MRI time points not collected

Locations and Contacts

Buffalo Neuroimaging Analysis Center, Buffalo, New York 14203, United States
Additional Information

Related publications:

Horakova D, Dwyer MG, Havrdova E, Cox JL, Dolezal O, Bergsland N, Rimes B, Seidl Z, Vaneckova M, Zivadinov R. Gray matter atrophy and disability progression in patients with early relapsing-remitting multiple sclerosis: a 5-year longitudinal study. J Neurol Sci. 2009 Jul 15;282(1-2):112-9. doi: 10.1016/j.jns.2008.12.005. Epub 2009 Jan 24.

Horakova D, Cox JL, Havrdova E, Hussein S, Dolezal O, Cookfair D, Dwyer MG, Seidl Z, Bergsland N, Vaneckova M, Zivadinov R. Evolution of different MRI measures in patients with active relapsing-remitting multiple sclerosis over 2 and 5 years: a case-control study. J Neurol Neurosurg Psychiatry. 2008 Apr;79(4):407-14. Epub 2007 Jun 5.

Havrdova E, Zivadinov R, Krasensky J, Dwyer MG, Novakova I, Dolezal O, Ticha V, Dusek L, Houzvickova E, Cox JL, Bergsland N, Hussein S, Svobodnik A, Seidl Z, Vaneckova M, Horakova D. Randomized study of interferon beta-1a, low-dose azathioprine, and low-dose corticosteroids in multiple sclerosis. Mult Scler. 2009 Aug;15(8):965-76. doi: 10.1177/1352458509105229. Epub 2009 May 22.

Bergsland N, Horakova D, Dwyer MG, Dolezal O, Seidl ZK, Vaneckova M, Krasensky J, Havrdova E, Zivadinov R. Subcortical and cortical gray matter atrophy in a large sample of patients with clinically isolated syndrome and early relapsing-remitting multiple sclerosis. AJNR Am J Neuroradiol. 2012 Sep;33(8):1573-8. doi: 10.3174/ajnr.A3086. Epub 2012 Apr 12.

Starting date: March 2009
Last updated: July 8, 2014

Page last updated: August 23, 2015

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