Volume 39, Issue 1 pp. 41-51
Clinical Science
Full Access

Oral type II collagen treatment in early rheumatoid arthritis. A double-blind, placebo-controlled, randomized trial

Joachim Sieper MD

Corresponding Author

Joachim Sieper MD

Deutsches Rheuma Forschungszentrum, Berlin, Klinikum Benjamin Franklin, Free University, Berlin, Germany

Department of Medicine, Rheumatology, Klinikum Benjamin Franklin, Hindenburgdamm 30, 12200 Berlin, GermanySearch for more papers by this author
Sonja Kary MD

Sonja Kary MD

Deutsches Rheuma Forschungszentrum, Berlin

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Helmut Sörensen MD

Helmut Sörensen MD

Immanuel Hospital, Berlin

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Rieke Alten MD

Rieke Alten MD

Schlossparkklinik, Berlin

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Ulrich Eggens MD

Ulrich Eggens MD

Klinikum Benjamin Franklin, Free University, Berlin

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Werner Hüge MD

Werner Hüge MD

Rheumaklinik Buch, Berlin

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Falk Hiepe MD

Falk Hiepe MD

Humboldt University, Berlin

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ANDREA Kühne

ANDREA Kühne

Deutsches Rheuma Forschungszentrum, Berlin

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Joachim Listing PhD

Joachim Listing PhD

Deutsches Rheuma Forschungszentrum, Berlin

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Norbert Ulbrich PhD

Norbert Ulbrich PhD

Deutsches Rheuma Forschungszentrum, Berlin

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Jürgen Braun MD

Jürgen Braun MD

Klinikum Benjamin Franklin, Free University, Berlin

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Angela Zink PhD

Angela Zink PhD

Deutsches Rheuma Forschungszentrum, Berlin

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Nicholas Avrion Mitchison PhD

Nicholas Avrion Mitchison PhD

Deutsches Rheuma Forschungszentrum, Berlin

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First published: January 1996
Citations: 121

Abstract

Objective. To investigate the efficacy of oral type II collagen in the treatment of early rheumatoid arthritis (RA).

Methods. Ninety patients with RA (disease duration ⩽3 years) were treated for 12 weeks with oral bovine type II collagen at 1 mg/day (n = 30) or 10 mg/day (n = 30) or with placebo (n = 30), in a double-blind randomized study.

Results. There was no significant difference between the 3 groups in terms of response to treatment. However, we observed a higher prevalence of responders in the type II collagen-treated groups: 7 responders in the 10-mg type II collagen group and 6 in the 1-mg group, versus 4 in the placebo group. Furthermore, 3 patients in the 10-mg type II collagen group and 1 patient in the 1-mg type II collagen group, but no patients in the placebo group, had very good response. A total of 14 patients had to be withdrawn from the study: 2 because of side effects (nausea) and 12 because of lack of efficacy.

Conclusion. Only a minority of patients responded to treatment with oral type II collagen. These results justify further efforts to identify which patients will have a good response to such therapy.

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