Important Message from ProHealth Founder, Rich Carson

Abstract: Early onset and effective inhibition of bone resorption in patients with rheumatoid arthritis treated with the tumour necrosis factor alpha antibody infliximab

1 Star2 Stars3 Stars4 Stars5 Stars ((63) votes, average 3.05 out of 5)

Clin Exp Rheumatol. 2003 Jul-Aug;21(4):473-6.

Hermann J, Mueller T, Fahrleitner A, Dimai HP.

Division of Rheumatology, Department of Internal Medicine, Karl Franzens University Hospital, Graz, Austria. josef.hermann@kfunigraz.ac.at

OBJECTIVE: To investigate the effect of the tumour necrosis factor alpha antibody infliximab on bone metabolism in patients with rheumatoid arthritis (RA).

METHODS: Twelve RA patients with active disease on a constant dose of methotrexate were treated with a single infusion of infliximab (10 mg/kg BW). Serum beta-CrossLaps and serum osteocalcin as markers of bone resorption and formation were measured two days and one day before and one and 14 days after infliximab infusion with an electrochemiluminiscence immunoassay. RA disease activity was determined using the Disease Activity Score (DAS) and the ACR-response criteria.

RESULTS: Infliximab treatment significantly reduced serum beta-CrossLaps levels from 0.29 +/- 0.13 (mean +/- SD) ng/ml at study entry to 0.17 +/- 0.09 pg/ml one day after infusion (p < 0.005). At day 14 serum beta-CrossLaps levels were still significantly lower compared to pre-treatment levels (0.24 +/- 0.13 pg/ml, p < 0.05).

In contrast, serum osteocalcin levels remained unchanged during the observation period (17.8 +/- 9.8 vs 18.2 +/- 9.9 vs 18.6 +/- 12.1 ng/ml, respectively). All but one patient improved clinically after infliximab infusion and the DAS dropped significantly from 6.5 +/- 0.9 prior to treatment to 5.8 +/- 1.3 and 5.0 +/- 1.3 at Day one and 14 days after treatment, respectively. Four patients showed an ACR 20-response one day after therapy and 10 patients 14 days after therapy.

CONCLUSION: Infliximab might have potential to inhibit generalised bone loss in patients with RA in addition to its clinical efficacy in reducing disease activity and inhibiting joint destruction.

PMID: 12942699 [PubMed – in process]

share this article

share your comments

Enrich and inform our Community. Your opinion matters!

Leave a Reply

Your email address will not be published. Required fields are marked *