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September 28 Highlight and Commentary

Morrow et al. compared the total amount of corticosteroid absorbed after 1,250 mg oral prednisone vs 1 g IV methylprednisolone in 16 patients with multiple sclerosis. The amount absorbed was similar for oral and IV preparations.

see page 1079

The battle of steroids in MS relapses: Oral versus intravenous

Commentary by Omar Khan, MD, and Robert Lisak, MD

Corticosteroids (CS) modulate the immune system in a number ways relevant to the immunopathogenesis of MS including suppression of T-cell proliferation, inhibition of Th1 cytokines, induction of Th2 gene expression, and reduction of lymphocyte endothelial adhesiveness and trafficking into the CNS.¹ The effect on brain MRI scans is demonstrated by a rapid reduction in gadolinium enhancement and reduction of brain volume over a long-term period.^2,3

Although many CS regimens have been employed, treatment with IV methylprednisolone (IVMP) at a dose of 1 g/d for 3 to 5 days with or without a brief oral CS taper is probably the most commonly used regimen for treating MS relapses. The optimal dosing regimen of CS in the treatment of MS relapses remains unknown. Another concern regarding the optimal dosing and use of CS in MS emerged from the Optic Neuritis Treatment Trial (ONTT) suggesting that low dose oral prednisone given for a brief period was associated with increased risk for recurrent optic neuritis, whereas treatment with IVMP delayed subsequent development of clinically definite MS.⁴ The results of the ONTT reinforced the use of IVMP for treating MS relapses. It has been reported that treatment of MS relapses with IVMP followed by or without an oral prednisone taper has no effect on subsequent neurologic recovery.⁵ Together, these observations have tended to discourage the use of oral prednisone by itself in the treatment of MS relapses.

The cost of a 5 day high-dose oral prednisone is approximately US $30 compared to US $600 for IVMP largely because of the logistics involved in the administration of IVMP. The Morrow et al. study comparing the bioavailability of 1,250 mg of oral prednisone and 1 g of IVMP showed that at 24 hours after dosing, no differences were observed between the two groups. The investigators have previously reported the gastric tolerance and safety of high dose oral prednisone.⁶ The stage is now set to undertake a large well-designed study to examine and compare the optimal dosing regimen, clinical efficacy, safety, and bioequivalence of high-dose oral prednisone and IVMP in treating MS relapses. The results of such a study may have important implications for patient convenience and treatment costs.

See page 1079

References

1. Wandinger KP, Wessel K, Trillenberg P, Heindl N, Kirchner H. Effect of high dose methylprednisolone administration on immune functions in multiple sclerosis. Acta Neurol Scand. 1998; 97: 359–365.[Medline]
2. Barkhof F, Hommes OR, Sheltens P, Valk J. Quantitative MRI changes in gadolinium-DTPA enhancement after high dose intravenous methylprednisolone treatment in multiple sclerosis. Neurology. 1991; 41: 1219–1222.[Abstract/Free Full Text]
3. Zivadinov R, Rudick R, De Masi R, et al. Effects of IV methylprednisolone on brain atrophy in relapsing-remitting MS. Neurology. 2001; 57: 1239–1247.[Abstract/Free Full Text]
4. Beck RW, Cleary PA, Trobe JD, et al. The effect of corticosteroids for acute optic neuritis on the subsequent development of multiple sclerosis. N Engl J Med. 1993; 329: 1764–1769.[Abstract/Free Full Text]
5. Caon C, Ching W, Tselis A, Sonenvirth E, Lisak R, Khan O. Oral prednisone taper has no effect on neurologic recovery following intravenous methylprednisolone for the treatment of a multiple sclerosis relapse. J Neurol. 2003; 250 (suppl 2); II/55.
6. Metz LM, Sabuda D, Hilsden RJ, Enns R, Meddings JB. Gastric tolerance of high-dose pulse oral prednisone in multiple sclerosis. Neurology. 1999; 53: 2093–2096.[Abstract/Free Full Text]

Related articles in Neurology:

The bioavailability of IV methylprednisolone and oral prednisone in multiple sclerosis

S. A. Morrow, C. A. Stoian, J. Dmitrovic, S. C. Chan, and L. M. Metz
Neurology 2004 63: 1079-1080. [Abstract] [Full Text]  

This article has been cited by other articles:

				M. Strupp and L. M. Metz The bioavailability of IV methylprednisolone and oral prednisone in multiple sclerosis Neurology, March 22, 2005; 64(6): 1100 - 1100. [Full Text] [PDF]

This Article Full Text (PDF) Correspondence: Submit a response Alert me when this article is cited Alert me when Correspondence are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Related articles in Neurology Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Search for Related Content