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Fingolimod treatment in multiple sclerosis leads to increased macular volume.


ABSTRACT:

Objective

To determine whether fingolimod, an oral sphingosine-1-phosphate receptor modulator approved for treatment of multiple sclerosis (MS), generally leads to increased retinal tissue volume.

Methods

In this longitudinal observational study, we compared changes in macular volume on spectral-domain optical coherence tomography (OCT) between consecutive patients with MS who initiated fingolimod and a matched reference cohort of patients with MS never exposed to the drug. The primary reference cohort was matched based on time interval between OCT examinations. A secondary reference cohort was matched based on age and disease duration. Change in macular volume within each group was analyzed using the paired t test. Change in macular volume between groups was examined using multiple linear regression.

Results

Macular volume increased by a mean of 0.025 mm3 (95% confidence interval [CI] +0.017 to +0.033, p < 0.001) in the 30 patients with MS who initiated fingolimod over a mean follow-up time of 5 months (SD 3). Macular volume did not significantly change over a mean follow-up time of 6 months (SD 4) in a comparison group of 30 patients with MS never treated with fingolimod (mean change of -0.003 mm3, 95% CI -0.009 to +0.004, p = 0.47). Overall, 74% of eyes in the fingolimod-treated group exhibited an increase in macular volume vs. 37% of eyes in the comparison group.

Conclusion

Initiation of fingolimod in MS is associated with a modest, relatively rapid increase in macular volume.

SUBMITTER: Nolan R 

PROVIDER: S-EPMC3589191 | biostudies-literature |

REPOSITORIES: biostudies-literature

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