ABSTRACT
Multiple sclerosis (MS) is an autoimmune disease of the central nervous system affecting
predominantly women of childbearing age; therefore, issues of conception, pregnancy,
and delivery become of significant importance to patients and treating physicians.
This article discusses the immunological and clinical effects of pregnancy on the
course of MS, clinical outcomes of Pregnancy in Multiple Sclerosis (PRIMS) trials,
the available data on safety and efficacy of immunomodulating MS treatments and symptomatic
treatments for pregnant and lactating women, and specific issues of MS management
at the time of pregnancy. The data related to estrogen-based MS therapies currently
or previously in trials are reviewed. Pregnancy does not appear to be associated with
adverse outcomes in MS patients. Some evidence suggests possible beneficial effects,
although clear prospective data of sufficient length are limited. Long-term relapse
rates and disability progression do not seem to be affected by pregnancy in MS patients.
The use of immunosuppressive or immunomodulatory agents in pregnancy is not routinely
advisable.
KEYWORDS
Multiple sclerosis - pregnancy
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Maria K HoutchensM.D. M.Sc.
Department of Neurology, Partners Multiple Sclerosis Center, Brigham and Women's Hospital,
Harvard Medical School
1 Brookline Place, #225, Brookline, MA 02445
Email: mhoutchens@partners.org